| Number | County | Town | Size | Built | Verif | GPS | Description |
| CA-01-01 | Alameda | Oakland | 1966 | 06-2006 | N37 45.02 W122 12.16 | SE of Oakland. At 7000 Coliseum Way on the E. side of I880 exit 12 or 13. Oakland Arena, true round bldg. Renovated 1966. | |
| CA-01-02 | Fremont | 04-2008 | N37 31.88 W122 00.02 | (8-Plex Cinedome Theatre, CA-01-02) in Fremont. At the E. corner of the intersection of I880 exit 17 & Mowry Av. | |||
| CA-03-01 | Amador | Volcano | 07-2002 | N38 25.481 W120 38.492 | S. of Volcano. Chaw'se Indian Museum at Indian Grinding Rock State Historical Park, 14881 Pine Grove Volcano Rd. 12-sided, tan vertical siding, very low cupola, excellent condition. | ||
| CA-04-01 | Butte | Chico | 1987 | 06-2020 | N39 42.443 W121 47.424 | SE of Chico. Notre Dame Blvd S. (curves SE) 0.6 miles from jct with Skyway Rd. in Chico to the church on the NE side of the road at 2801. Neighborhood, geodesic church. | |
| CA-04-?1 | Chico | 32' | 1900 | E. of Chico. Octagon house. (N39 45.349 W121 40.635) | |||
| CA-04-?2 | Chico | 1881 | In Chico. 494 E. 5th St. JT Daly, octagon house, 8 gables, 2 story, made into 2 apartments in 2009. (N39 43.848 W121 50.082) | ||||
| CA-05-01 | Calaveras | Arnold | 02-2009 | N38 15.648 W120 20.253 | In Arnold. CA4 NE 0.5 miles from jct with Manuel Rd., SE (right - curves NE) on Arnold Byway 0.4 miles to the house on the NW (left) side of the road. Round house, vertical siding. | ||
| CA-05-02 | Arnold | 02-2009 | N38 15.853 W120 20.055 | In Arnold. CA4 NE 1.2 miles from jct with Manuel Rd., SE (right) on Moran Rd. 150', SW (right) on Russel Dr. 300' to the house on the NW (right) side of the road. Geodesic house. | |||
| CA-05-03 | Arnold | 02-2009 | N38 15.858 W120 20.049 | Same as CA-05-02. Geodesic garage. | |||
| CA-07-01 | Contra Costa | Concord | 07-2005 | N37 57.62 W121 56.73 | In Concord. Clayton Rd. E. 4.3 miles from jct with Sunset St. in Concord, N. on Kirker Pass Rd. 0.9 miles to the church on the W. side of the road at 1955. Demetrious Greek Orthodox church, round, low dome roof. | ||
| CA-09-01 | El Dorado | Placerville | 02-2015 | N38 44.119 W120 46.614 | In Placerville. Schnell School Rd. N. 0.2 miles from jct with US50 exit 48, E. 0.1 miles to the school. Schnell Elementary, hexagon school, 3 bldgs. | ||
| CA-09-02 | Shingle Springs | 04-2018 | N38 40.767 W120 58.941 | NW of Shingle Springs. Cameron Park Dr. N. 1.6 miles from jct with US50 exit 35 W. of Shingle Springs to the bldg on the W. side of the road at 3330. Octagon bldg, 2-story, steep roof. | |||
| CA-10-?1 | Fresno | Coalinga | 1915 | In Coalinga. Octagon house. (N36 08.344 W120 21.738) | |||
| CA-12-01 | Humboldt | Loleta | 100' | 1894-6 | 03-2006 | N40 40.672 W124 15.203 | NW of Loleta. Copenhagen Rd. W. (curves N.) 2.9 miles from jct with Eel River Dr. on the N. side of Loleta to the barn on the E. side of the road. Knight, 16 sided, central silo extends through roof, dormer over main entrance, fair condition. Constructed of pure virgin old growth redwood. Barn center has 60' hay loft 50' high. Wagon run around the hay loft. 75 stanchions for cows. Built by the Knight brothers. [6-17-17: Via satellite images: Barn appears to stand, but roof has collapsed. |
| CA-17-01 | Lake | Calistoga | 10-2023 | N38 35.486 W122 34.690 | At Laura Michael Wines in Calistoga. On the E. side of Lake County Hwy (CA29) 0.2 miles N. of Lake St. / Silverado Trail at 2250. Hexagon bldg, louvered cupola. | ||
| CA-18-01 | Lassen | Mcarthur | 1916 | 07-2002 | --MOVED-- N40 55.693 W121 14.335 | SSW of McArthur. CA299 E. 1.3 miles from McArthur, S. on Pittville Rd. 4.8 miles, E. (curves S.) on Little Valley Rd. 11.5 miles to the barn on the E. side of the road. Barn is slightly below road. 16-sided, one story, steep lead roof. [Moved to Fort Crook Museum in Fall River Mills in 2009 -> CA-45-02.] | |
| CA-19-01 | Los Angeles | Pasadena | 1893 | At the Heritage Square Museum in Los Angeles. Octagon house (Longfellow-Hastings) at 3800 Homer St. Built by Gilbert Longfellow in Pasadena and moved to Heritage Square in 1986. [www.heritagesquare.org] (N34 05.289 W118 12.513) | |||
| CA-19-02 | Los Angeles | N33 56.65 W118 24.15 | In Los Angeles. The central terminal area of the Los Angeles International Airport, the Encounter Restaurant is located 70' above the ground in the center of the historic Theme Building complex. Encounter Restaurant, round bldg. The restaurant, topped by an observation deck, features a space-age interior design. | ||||
| CA-19-03 | Inglewood | 420' | 1967 | 02-2024 | N33 57.492 W118 20.516 | In Inglewood. Bounded by Manchester Blvd, Pincay Dr., Prairie Av. & Kareem Ct., 3900 Manchester Blvd. The Forum, true round bldg. | |
| CA-19-04 | Los Angeles | 140' | 1967 | 02-2024 | N34 03.468 W118 14.868 | In Los Angeles. On the W. side of Grand Av. 350' S. of Temple St. Mark Taper Forum, true round bldg. | |
| CA-19-05 | Los Angeles | 90' | 1956 | 02-2004 | N34 06.189 W118 19.582 | In Los Angeles. On the E. side of Vine St. 200' S. of Yucca St. at 1750. Capitol Records, true round bldg. | |
| CA-19-?1 | Los Angeles | UNK | Octagon house. In the Santa Monica Mountains. Elevation: 2,000, distance to 101 freeway: 10 miles, distance to Pacific Coast Highway: 4 miles. Views Topanga Canyon, 20-minute drive from Santa Monica. Built by Anthony Verebes. [www.myoctagonhouse.com] | ||||
| CA-19-?3 | Long Beach | Convention center, oval bldg. (N33 45.843 W118 11.305) | |||||
| CA-19-?4 | Long Beach | True round bldg. (N33 45.943 W118 11.054) | |||||
| CA-19-?5 | Los Angeles | 1921 | In Los Angeles. 653 N Westmoreland. Octagon house. (N34 05.007 W118 17.268) | ||||
| CA-19-?6 | Westlake Village | SW of Westlake Village. Octagon house. (N34 04.386 W118 53.866) | |||||
| CA-19-?7 | Los Angeles | 1960 | Chemosphere, octagon house. (N34 07.656 W118 22.127) | ||||
| CA-21-01 | Marin | Mill Valley | 01-2004 | N37 53.571 W122 34.347 | In Muir Woods National Monument W. of Almonte. CA1 W. (curves S.) 3.2 miles from jct with US101 in Almonte, W. (Curves N.) on Panoramic Hwy 0.8 miles, W. (curves S.) on Sequoia Valley Rd. 0.5 miles, continue S. (curves W.) on Muir Woods Rd. 0.65 miles, right 0.1 miles to the bldg. Visitors center, hexagon bldg. | ||
| CA-21-02 | Dillon Beach | 38' | 04-2005 | N38 15.562 W122 57.962 | In Dillon Beach. Ocean Dr. N. (curves W.) 1.1 miles from jct with Dillon Beach Rd. to the house on the S. side of the road. Dancing Woman, octagon house. [www.dancingatthesea.com] | ||
| CA-21-03 | Ross | c1864 | 02-2012 | N37 57.811 W122 33.275 | At Marin Art and Garden Center in Ross. Jose Moya del Pino Reference Library, octagon house, 2 story, small dormer on every other roof segment. [www.moya-rhs.org] | ||
| CA-21-04 | San Venetia | 10-2021 | N38 00.145 W122 32.013 | In San Venetia. Civic Center Dr. NW 0.5 miles from jct with San Pedro Rd., NE on Avenue of the flags 0.15 miles to the bldg on the SE side of the road. Veterans Memorial Auditorium, true round bldg. | |||
| CA-21-05 | San Quentin | 10-2023 | N37 56.397 W122 29.222 | In San Quentin. Main St. W. 0.3 miles from jct with I580 exit 28 to prison gate. Bldg can be seen from this point. Lighthouse, octagon bldg. | |||
| CA-21-06 | San Rafael | 10-2023 | N37 59.847 W122 31.821 | In San Rafael. Civic Center Dr. N. 100 yds from jct with San Pedro Rd. to the bldg on the W. side of the road. Library, round bldg. | |||
| CA-21-?1 | Dillon Beach | In Dillon Beach. 14-sided house. (N38 15.446 W122 58.158) | |||||
| CA-23-01 | Mendocino | Ukiah | 10-2023 | N39 08.040 W123 12.320 | In Ukiah. At the SW corner of Washington & State Sts. Be-Bops Diner, 24-sided bldg. | ||
| CA-23-02 | Gualala | 10-2023 | N38 46.154 W123 31.857 | In Gualala. At the E. corner of Shoreline Hwy (CA1) & Ocean Dr., E. bldg. Octagon bldg. | |||
| CA-23-03 | Gualala | 10-2023 | N38 46.160 W123 31.851 | Same as CA-23-02. Octagon bldg. | |||
| CA-23-04 | Gualala | 10-2023 | N38 47.531 W123 33.702 | NW of Gualala. Shoreline Hwy (CA1) NW 2.65 miles from jct with Old State Hwy in Gualala to the turret on the NE side of the road at 36691. SW turret. St. Orres Hotel #1, octagon turret. | |||
| CA-23-05 | Gualala | 10-2023 | N38 47.537 W123 33.705 | Same as CA-23-04. St. Orres Hotel #2, octagon turret. | |||
| CA-23-06 | Mendocino | 10-2023 | N39 18.340 W123 47.874 | In Rotary Park in Mendocino. At the SE corner of Albion & Lansing Sts. Rotary Park, octagon bldg. | |||
| CA-23-07 | Willits | 10-2023 | N39 24.105 W123 21.049 | In Willits. On the E. side of Poplar Av. 150' S. of Walnut St. at 1049. Dome house. | |||
| CA-23-08 | Ukiah | 10-2023 | N39 08.743 W123 12.373 | In Ukiah. On the S. side of Mill St. ½ block W. of Main St. at 125. | |||
| CA-23-?1 | Willits | 1888 | NW of Willits. Octagon house. (N39 31.836 W123 29.369) | ||||
| CA-27-01 | Monterey | Carmel by the Sea | 03-2005 | N36 32.57 W121 55.97 | In Carmel by the Sea. Ocean Av. W. 1.0 miles from jct with CA1 (Carbrillo Hwy) in Carmel by the Sea, S. on Scenic Rd. 1.0 miles to the house on the W. side of the road at 26251. Octagon house, no cupola, rectangular attachments. | ||
| CA-27-02 | Carmel by the Sea | 03-2005 | N36 32.68 W121 55.87 | In Carmel by the Sea. Ocean Av. W. 1.0 miles from jct with CA1 (Carbrillo Hwy) in Carmel by the Sea, S. on Scenic Rd. 0.9 miles to the house on the E. side of the road. Carefree Surf Mer, octagon house, attached wings. | |||
| CA-27-03 | Carmel by the Sea | 03-2005 | N36 32.489 W121 54.430 | CA-40-02) SE of Carmel by the Sea, Monterey County, CA. Carmel Valley Rd. E. 0.2 miles from jct with CA1 (Cabrillo Hwy) just SE of Carmel by the Sea, S. on Carmel Rancho Blvd. 0.1 miles, W. on Carmel Rancho Ln. 0.1 miles to the bldg at 26356. Ling Chow restaurant, octagon bldg, low cupola. | |||
| CA-27-04 | Castroville | 04-2008 | N36 47.60 W121 47.06 | NNW of Castroville. CA1 N. 1.8 miles from jct with CA183 on the NW side of Castroville, left & continue N. on Moss Landing Rd. 0.2 miles to the bldg on the E. side of the road. Captain's Inn B&B, 12 sided bldg, brown vertidal siding, windowed cupola. | |||
| CA-27-05 | Castroville | 05-2009 | N36 45.840 W121 45.392 | At Randazzo in Castroville. CA183 (Merritt St.) NW 0.3 miles from jct with CA156 to the bldg on the SW side of the road at 10900. SE bldg. Randazzo #1, octagon bldg, tan, windowed cupola. | |||
| CA-27-06 | Castroville | 05-2009 | N36 45.848 W121 45.402 | Same as CA-27-05. NW bldg. Randazzo #2, octagon bldg, tan, windowed cupola. | |||
| CA-28-01 | Napa | American Canyon | 100' | 09-2009 | N38 10.722 W122 14.879 | N. of American Canyon. CA29 (Broadway St.) N. 0.8 miles from jct with American Canyon Rd. in American Canyon, E. on S Napa Junction Rd. 0.4 miles to the barn. (I'm not sure the road goes through based on the aerial photos.) | |
| CA-28-02 | Napa | 06-2006 | N38 18.06 W122 17.13 | In Napa. 1st St. E. 1.1 miles from jct with CA29 in Napa, N. (left) on Soscol Av. 0.1 miles (1 block), W. (left) on Pearl St. 150' to the bldg on the S. side of the road at 825. Century Theatre Cinidome, octagon bldg, dome roof. | |||
| CA-28-03 | Napa | 06-2006 | N38 18.15 W122 17.28 | In Napa. 1st St. E. 1.0 miles from jct with CA29 in Napa, N. (left) on Main St. 0.3 miles (4 blocks), E (right) on Napa St. 150' to the bldg on the S. side of the road at 981. St. John the Baptist Catholic Church, hexagon bldg. | |||
| CA-28-04 | St. Helena | 1884 | 10-2023 | N38 30.613 W122 28.795 | At Beringer Vineyards in St. Helena. Main St. NW 0.15 miles from jct with Elmhurst Av., left into Beringer Vineyards 350' to the turret on the left side of the road. Octagon turret. | ||
| CA-28-05 | Napa | 10-2023 | N38 17.861 W122 17.034 | In Napa. At the E. corner of 3rd & Main Sts. Octagon turret. | |||
| CA-30-01 | Orange | Laguna Niguel | 06-2010 | N33 33.078 W117 40.419 | In Laguna Niguel. Avery Pkwy W. 100 yds from jct with I5 exit 85, N. on Camino Capistrano 0.3 miles to the bldg on the E. side of the road at 28332. Allen Cadillac & GMC, true round bldg. | ||
| CA-30-02 | Laguna Beach | 07-2015 | N33 32.823 W117 46.890 | In Laguna Beach. CA133 (Broadway St.) N. 0.35 miles from jct with CA1 (S Coast Hwy) to the bldg on the E. side of the road. True round bldg. | |||
| CA-30-03 | Irvine | 09-2015 | N33 40.365 W117 50.822 | In Irvine. At the E. corner of Michelson Dr. & Jamboree Rd. | |||
| CA-30-04 | Irvine | 09-2015 | N33 40.355 W117 50.821 | Same as CA-30-03. | |||
| CA-30-05 | Anaheim | 08-2017 | N33 48.330 W117 55.141 | In Adventure Park in Disneyland in Anaheim. SW of I5 exit 110. Admission. Flo's V8 Cafe, true round bldg. | |||
| CA-30-06 | Mission Viejo | 11-2022 | N33 33.865 W117 37.920 | SE of Mission Viejo. Oso Pkwy E. 2.6 miles from jct with I5 exit 88 in Mission Viejo, S. on Antonio Pkwy 1.35 miles, W. on Crown Valley Pkwy 0.2 miles, S. on Sienna Pkwy 0.1 miles, S. on Mercantile Way 130 yds to the turret on the NE (left) side of the road. Med Lounge, round turret, windowed cupola. | |||
| CA-31-01 | Placer | Roseville | 07-2013 | N38 44.621 W121 16.087 | In Roseville. Douglas Blvd E. 0.25 miles from jct with I80 exit 103, S. (curves W.) on Sunrise Av. 0.15 miles to the bldg on the N. side of the road at 130. Western Valley Federal Credit Union, oval bldg. | ||
| CA-31-02 | Roseville | 01-2014 | N38 44.310 W121 14.752 | In Roseville. Douglas Blvd E. 0.9 miles from jct with I80 exit 103, S. on Rocky Ridge Dr. 0.5 miles, E. on Johnson Ranch Rd. 0.5 miles to the bldg on the S. side of the road at 1970. Maidu Museum,, true round bldg. | |||
| CA-32-01 | Plumas | Graeagle | 09-2010 | N39 45.645 W120 36.919 | In Graeagle. Yonkalla Trl S. 0.2 miles from jct with CA89 to the house on the W. side of the road at 18. | ||
| CA-32-02 | Graeagle | 09-2010 | N39 45.312 W120 36.911 | In Graeagle. Yonkalla Trl S. 0.5 miles from jct with CA89 to the house on the E. side of the road. | |||
| CA-34-01 | Sacramento | Rio Linda | 10-2013 | N38 42.450 W121 27.624 | NW of Rio Linda. Rio Linda Blvd N. (curves NW) 0.7 miles from jct with Q St. on the NW side of Rio Linda to the house on the SW side of the road. | ||
| CA-34-02 | North Highlands | 03-2015 | N38 41.367 W121 21.795 | In North Highlands. Elkhorn Blvd NW 1.1 miles from jct with I80 exit 98, SW (curves W.) on Don Julio Blvd 0.75 miles to the church on the N. side of the road at 4325. St. Lawrence, hexagon church. | |||
| CA-34-03 | Fair Oaks | 10-2023 | N38 37.983 W121 17.091 | In Bannister Park in Fair Oaks. Bannister Rd. S. 0.2 miles from jct with Fair Oaks Blvd, left into parking lot. Park & walk N. several yds to the Bannister Bike Trl & walk (or bike) E. 0.1 miles to the bldg on the N. side of the trail. Maintenance, true round bldg, concrete block, flat roof. | |||
| CA-34-04 | Sacramento | 10-2023 | N38 33.797 W121 20.418 | In Sacramento. Bradshaw Rd. S. 0.15 miles from jct with US50, W. on Micron Av. 0.2 miles to the turret on the S. side of the road at 8584. Octagon turret. | |||
| CA-34-?1 | Herald | NE of Herald. CA104 (Twin Cities Rd.) NE 5.45 miles from jct with Herald Rd. in Herald, E. on Clay East R. 0.75 miles, S. on Kirkwood St. 0.65 miles to the barn on the W. side of the road at 11870. (N38 19.579 W121 08.836) | |||||
| CA-37-01 | San Diego | Escondido | 07-2002 | Round building at the entrance to the San Diego Wild Animal Park. (N33 05.983 W117 00.076) [Other round bldgs in park] | |||
| CA-37-02 | Coronado | 1888 | 03-2005 | N32 40.87 W117 10.65 | In Coronado. Orange Av. (CA75) S. 1.0 miles from jct with 4th St. in Coronado to the hotel on the W. side of the road at 1500. Hotel Del Coronado, 12 sided, many windowed clerestory, very steep roof, 2 small dormers per side, windowed cupola w/steep roof & walkway outside. | ||
| CA-37-03 | San Diego | 03-2005 | N32 43.34 W117 09.81 | In San Diego. Front St. S. 0.5 miles from jct with I5 exit 16, E. on Cedar St. 1 block, N. on 1st St. ½ block to the hotel on the E. side of the road at 1617. Holiday Inn, 12 sided, concrete, small dome roof. | |||
| CA-37-04 | San Diego | 2004 | 03-2005 | N32 42.44 W117 09.43 | In San Diego. 17th St. S. 0.1 miles from jct with I5 exit 14 in San Diego, W. on Commercial St. 0.6 miles to the bldg on the N. side of the road. Petco Park (San Diego Padres baseball teem), oval bldg. | ||
| CA-37-05 | San Diego | 03-2005 | N32 43.16 W117 13.23 | In San Diego. CA209 (Rosecrans St.) SW 2.8 miles from jct with I5 exit 20 in San Diego, SE on Shelter Island Dr. 0.6 miles, NE on Shelter Island Dr. 0.1 miles to the bldg at 2230. Bali Hai restaurant, round bldg, flat roof, rectangular addition. | |||
| CA-38-01 | San Francisco | San Francisco | 1859 | 03-2005 | N37 47.91 W122 24.98 | In San Francisco. US101 (Van Ness Av.) S. 0.25 miles (4 blocks) from jct with US101 (Lombard St.) in San Francisco, E. on Green St. 0.4 miles (4 ½ blocks) to the house on the S. side of the road at 1067. Feusier, octagon house, 2 story, 1st story stucco, 2nd story scalloped white horizontal siding, flat roof, windowed cupola w/flat roof. | |
| CA-38-02 | San Francisco | 1861 | 03-2005 | N37 47.87 W122 25.64 | In San Francisco. Gough St. S. 0.2 miles (3 ½ blocks) from jct with US101 (Lombard St.) in San Francisco to the house on the W. side of the road at 2645. McElroy, octagon house, museum, 2 story, blue horizontal siding, flat roof, windowed cupola w/flat roof. [www.nscda.org/museums/california.htm] | ||
| CA-38-03 | San Francisco | 01-2004 | N37 48.57 W122 24.95 | In San Francisco. Van Ness Av. N. 2.4 miles from jct with US101 in San Francisco, E. on Bay St. 0.5 miles (6 blocks) N. on Taylor St. 0.3 miles (4 blocks) to the building at Fisherman's Warf. Boudin Bakery, octagon bldg. | |||
| CA-38-04 | San Francisco | 03-2005 | N37 48.49 W122 24.92 | In San Francisco. Van Ness Av. N. 2.4 miles from jct with US101 in San Francisco, E. on Bay St. 0.5 miles (6 blocks), N. on Taylor St. 0.2 miles (2 ½ blocks) to the building on the E. side of the road. Golden Voyage Gift Shop, octagon bldg, 3 story, spire. | |||
| CA-38-05 | San Francisco | 03-2005 | N37 48.51 W122 24.55 | In San Francisco. Van Ness Av. N. 2.4 miles from jct with US101 in San Francisco, E. on Bay St. 1.1 miles, N. on The Embarcadero 0.25 miles (2 blocks) to the building on the E. side of the road. Hard Rock Cafe, octagon bldg, windowed cupola. | |||
| CA-38-06 | San Francisco | 03-2005 | N37 45.443 W122 29.915 | In San Francisco. CA1 N. 3.1 miles from jct with I280 exit 7 in San Francisco, W. on Lawton St. 1.2 miles, N. on 39th Av. ¼ block) to the church on the W. side of the road. Church of the Holy Name of Jesus, oval church. | |||
| CA-38-07 | San Francisco | c1938 | 10-2006 | N37 48.47 W122 28.54 | In San Francisco. At the S. end of the Golden Gate bridge, on the E. side of the road at the far N. end of the visitors center. Golden Gate Gift Center, true round bldg, flat roof. | ||
| CA-38-?1 | San Francisco | 1963 | The Ocho, octagon house. (N37 45.248 W122 28.206) | ||||
| CA-39-01 | San Joaquin | Stockton | 01-2004 | In Stockton. On the E. side of I5 just S. of Hammer Ln., exit 478. Octagon church. | |||
| CA-39-02 | Manteca | 04-2011 | N37 51.291 W121 13.144 | N. of Manteca. S99 Frontage Rd. N. 1.9 miles from jct with CA99 exit 244 on the N. side of Manteca to the bldg on the W. side of the road at 12001. Delicato Winery, round bldg. | |||
| CA-39-03 | Manteca | 05-2012 | N37 49.001 W121 13.047 | In Manteca. Main St. S. 0.7 miles from jct with Lathrop Rd. (near CA99 exit 244) to the bldg on the W. side of the road at 1315. Hob Nob Bob's, true round bldg, rectangular attachment. | |||
| CA-39-04 | Manteca | In Manteca. Manteca Octagon school. (N37 47.828 W121 12.701) | |||||
| CA-39-05 | Lodi | 10' | 1930s | 11-2012 | N38 08.249 W121 14.498 | At Oak Ridge Winery E. of Lodi. CA12 (Victor Rd.) E. 0.85 miles from jct with CA99 in Lodi to the bldg on the S. side of the road. Tasting Room, true round bldg. Was a wine storage barrel. | |
| CA-40-01 | San Luis Obispo | San Luis Obispo | 77' x 80' | Pre1900 | 10-2023 | N35 14.212 W120 40.773 | S. of San Luis Obispo. US101 S. 2.7 miles from jct with Broad St. in San Luis Obispo, E. on Los Osos Valley Rd. 0.4 miles, S. on Higuera St. 0.4 miles to the barn on the E. side of the road. Octagon barn, white vertical siding of random width boards, louvered cupola, excellent condition, part of The Land Conservancy. Concrete foundation & floor. Restored 1998 thru 2009. |
| CA-40-02 | San Luis Obispo | 06-2006 | N35 16.00 W120 40.50 | In San Luis Obispo. Madonna Rd. SW 0.1 miles from jct with US101 on the S. side of San Luis Obispo to the bldg at 100. Madonna Inn, round bldg. | |||
| CA-40-03 | Paso Robles | 12-2002 | N35 38.461 W120 41.234 | In Paso Robles. 24th St. W. (curves S.) 0.15 miles from jct with US101 in Paso Robles to the bldg on the W. side of the road. Margie's Diner, round bldg. | |||
| CA-40-04 | Pismo Beach | 10-2023 | N35 08.938 W120 39.033 | At Cottage Inn by the Sea in Pismo Beach. Price St. NW 0.4 miles from jct with CA1 (Dolliver St.) in Pismo Beach to the bldg on the S. side of the road at 2351. | |||
| CA-40-05 | Arroyo Grande | 04-2008 | N35 07.214 W120 36.508 | In Arroyo Grande. Grand Av. W. 1.5 miles from jct with US101 exit 187 in Arroyo Grande to the bldg on the S. side of the road. Oak Park and Grand Dental Care AG, octagon bldg. | |||
| CA-40-06 | Arroyo Grande | 05-2009 | N35 07.245 W120 36.534 | In Arroyo Grande. Grand Av. W. 1.5 miles from jct with US101 exit 187 to the bldg on the S. side of the road at 1800. Higher Groundz Coffee & Tea Company, octagon bldg, flat roof. | |||
| CA-40-07 | Cambria | 04-2015 | N35 33.742 W121 05.618 | In Cambria. At 1174 Main St. Santa Rosa Catholic, octagon church. | |||
| CA-40-08 | Arroyo Grande | 1897 | 10-2023 | N35 07.595 W120 34.893 | In Arroyo Grande. Branch St. E. 0.15 miles from jct with US101, N. on Wesley Av. 0.2 miles to the bldg at 250. The Tabernacle, 12-sided bldg, white vertical siding, large clerestory. Built by the Methodist Church, now a meeting place. | ||
| CA-40-09 | Arroyo Grande | 10-2023 | N35 06.979 W120 34.915 | In Arroyo Grande. At the E. corner of Valley Rd. & Fair Oaks Av. Clark Center for the Performing Arts, octagon bldg. | |||
| CA-40-10 | Arroyo Grande | 10-2023 | N35 12.286 W120 36.920 | N. of Arroyo Grande. CA227 (Branch St.) N. 7.5 miles from jct with US101 in Arroyo Grande to the turret on the W. side of the road at 6425 up a driveway 0.1 miles. Octagon turret. | |||
| CA-40-11 | Arroyo Grande | 10-2023 | N35 07.683 W120 34.986 | In Arroyo Grande, San Luis Obispo County, CA. Branch St. W. 0.3 miles from jct with Grand Av., right on Old Ranch Rd. 0.35 miles, right on Mercedes Ln. 0.1 miles to the turret ahead at 252. Octagon turret. | |||
| CA-40-12 | Arroyo Grande | 10-2023 | N35 07.647 W120 35.026 | In Arroyo Grande. Branch St. W. 0.3 miles from jct with Grand Av., right on Old Ranch Rd. 0.35 miles, right on Mercedes Ln. 270' to the turret on the left side of the road at 392. Octagon turret. | |||
| CA-40-13 | Arroyo Grande | 10-2023 | N35 07.616 W120 35.015 | In Arroyo Grande. Branch St. W. 0.3 miles from jct with Grand Av., right on Old Ranch Rd. 0.35 miles, right on Mercedes Ln. 150' to the turret on the right side of the road at 289. Octagon turret. | |||
| CA-40-14 | Arroyo Grande | 10-2023 | N35 07.660 W120 34.983 | In Arroyo Grande. Branch St. W. 0.3 miles from jct with Grand Av., right on Old Ranch Rd. 0.35 miles, right on Mercedes Ln. 0.1 miles to the turret on the right side of the road at 273. Octagon turret. | |||
| CA-40-15 | Oceano | 1855 | 10-2023 | N35 05.932 W120 36.103 | In Oceano. At the SE corner of Beach & 25th Sts. Octagon turret. | ||
| CA-40-16 | Oceano | 10-2023 | N35 06.153 W120 37.043 | In Oceano. On the NE side of Cabrillo Hwy 260' SE of Belridge St. at 1651. Geodesic house. | |||
| CA-40-17 | San Luis Obispo | 10-2023 | N35 16.930 W120 39.62 | In San Luis Obispo, San Luis Obispo County, CA. On the SE side of Monterey St. ½ block SW of Santa Rosa St. at 1055. Round turret. | |||
| CA-40-?1 | Arroyo Grande | In Arroyo Grande. Possibly 7th Day Adventist gymnasium or events building at 120 Vernon St. True round bldg. (N35 07.519 W120 34.991) | |||||
| CA-41-?1 | San Mateo | San Carlos | 1872 | In San Carlos. 125 Dale Av. Nathanial Brittan, octagon house. (N37 30.027 W122 16.331) | |||
| CA-43-01 | Santa Clara | Milpitas | 06-2006 | N37 25.27 W121 54.95 | In Milpitas. CA237 W. 0.3 miles from jct with I880 exit 47 in Milpitas, S. on McCarthy Blvd 0.15 miles, E. on Bellew Dr. 0.2 miles, S. on Barber Ln. 0.15 miles to the bldg on the E. side of the road near the interstate. | ||
| CA-43-02 | San Jose | 06-2006 | N37 17.52 W121 52.50 | In San Jose. Curtner Av. W. 0.15 miles from jct with CA87 (Guadalupe Fwy), S. on Canoas Garden Av. 300' to the church on the W. side of the road at 2315. Cathedral of Faith, hexagon church. | |||
| CA-43-03 | San Jose | 05-2009 | N37 16.717 W121 52.722 | In San Jose. Capitol Expy W. 0.75 miles from jct with CA87 (Guadalupe Fwy), N. on Old Almaden Rd. 0.2 miles, W. on Foxworthy Av. 150' to the bldg on the N. side of the road at 1081. 6 geodesic bldgs grouped around a hexagon bldg. Kinder Care Learning Center, geodesic bldg. | |||
| CA-43-04 | San Jose | 10-2023 | N37 20.381 W121 53.409 | In San Jose. On the NE side of 3rd St. 180' SE of St. James St. at 160. First Unitarian Church, round turret. | |||
| CA-43-05 | San Jose | 10-2023 | N37 20.381 W121 53.399 | Same as CA-43-04. First Unitarian, round church, dome roof, small windowed cupola. | |||
| CA-43-06 | San Jose | 10-2023 | N37 20.262 W121 53.159 | In San Jose. On the SE side of Santa Clara St. across from the SE end of 5th St. at 200. City Hall Rotunda, round bldg, dome roof. | |||
| CA-43-07 | San Jose | 10-2023 | N37 16.488 W121 50.110 | At The Woods (gated) in San Jose. The Woods Dr. NE 360' from jct with Snell Av., right on The Woods Dr. 0.1 miles, right (S.) on The Woods Crossing 160', left 100 yds to Foxwood Bldg 6 on the right. Bldg is ahead 50'. True round bldg, 2 story, no cupola. | |||
| CA-44-01 | Santa Cruz | Santa Cruz | 06-1986 | N36 57.820 W122 01.196 | On Santa Cruz Beach in Santa Cruz. Ocean St. S. 0.75 miles from jct with CA17 (Santa Cruz Hwy), W. (right) on Soquel Av. 0.4 miles, S. (left) on Pacific Av. 0.8 miles, E. (left) on Beach St. 0.2 miles to the bldg on the S. side of the road at 400. Cocoanut Grove Grand Ballroom, round bldg, dome roof. | ||
| CA-44-02 | Aptos | 06-2006 | N36 58.71 W121 54.41 | In Aptos. State Park Dr. N. 0.2 miles from jct with CA1 in Aptos, SE (right) on Soquel Dr. 0.15 miles to the bldg on the E. side of the road at 7851. Washington Mutual Bank, octagon bldg, no cupola. | |||
| CA-44-03 | Watsonville | 05-2009 | N36 55.869 W121 46.548 | In Watsonville. Green Valley Rd. N. 1.0 miles from jct with CA152 (Main St.) to the church on the E. side of the road at 376. Green Valley Christian Center, octagon church. | |||
| CA-44-04 | Watsonville | 05-2009 | N36 55.316 W121 46.211 | In Watsonville. CA152 (Main St.) E. 0.9 miles from jct with Green Valley Rd., N. on Arthur Rd. 0.5 miles to the church on the W. side of the road at 360. Arthur Road Baptist, hexagon church. | |||
| CA-44-05 | Watsonville | 05-2009 | N36 55.347 W121 46.221 | In Watsonville. CA152 (Main St.) E. 0.9 miles from jct with Green Valley Rd., N. on Arthur Rd. 0.5 miles to the church on the W. side of the road at 352. First Church of Christ Scientist, hexagon church. | |||
| CA-44-06 | Santa Cruz | 1882 | 09-2011 | N36 58.501 W122 01.535 | Now Lulu's in Santa Cruz. Ocean St. S. 0.4 miles from jct with CA17 (Santa Cruz Hwy), W. (right) on Water St. 0.35 miles, left on Front St. 0.15 miles to the bldg on the W. side of the road. Hall of Records, octagon bldg, brick. | ||
| CA-44-?1 | Watsonville | In Watsonville. On the SE side of Beach St. at the SE end of Eaton Ct. 12-sided School. (N36 54.768 W121 45.168) | |||||
| CA-44-?2 | Santa Cruz | 1884 | In Santa Cruz. 130 Sycamore St. Hexagon house. (N36 58.051 W122 01.548) | ||||
| CA-44-?3 | Santa Cruz | 1886 | In Santa Cruz. Sargent, octagon cottage. (N36 57.878 W122 00.642) | ||||
| CA-45-01 | Shasta | Fall River Mills | 09-2010 | N41 00.155 W121 26.741 | In Fort Crook Museum in Fall River Mills. CA299 W. 0.45 miles from jct with Main St., N. on Fort Crook Av. 100 yds to the museum on the E. side of the road. [www.fortcrook.com] Fort Cook Museum, 12-sided bldg, steep roof, large windowed cupola. | ||
| CA-45-02 | Fall River Mills | 2009 | 09-2010 | N41 00.102 W121 26.772 | In Fort Crook Museum, in Fall River Mills. CA299 W. 0.45 miles from jct with Main St., N. on Fort Crook Av. 200' to the barn on the E. side of the road. Moved here & rebuilt in 2009, was CA-18-01. Beaver Creek, 16 sided barn, steep roof. | ||
| CA-48-01 | Solano | Suisun City | 01-2004 | N38 14.302 W122 02.235 | In Suisun City. Civic Center Blvd S. 0.4 miles from jct with CA12 in Suisun City to the bldgs at 701 Civic Center Blvd. City Hall. Next to CA-48-02. | ||
| CA-48-02 | Suisun City | 01-2004 | N38 14.297 W122 02.246 | Same as CA-48-01. | |||
| CA-49-01 | Sonoma | Santa Rosa | 1875-80 | 09-2009 | --GONE-- N38 28.548 W122 43.641 | In Santa Rosa. US101 N. 3.2 miles from jct with CA12 in Santa Rosa, SE on Mendocino Av. 0.15 miles, E. on Fountain Gove Pkwy. 0.1 miles, N. on Round Barn Blvd 0.1 miles to the barn on the E. side of the road. FountainGrove, 16-sided, currently vacant, good condition. Documented by HABS. Destroyed by wildfire 10-9-17. | |
| CA-49-02 | Santa Rosa | 76' | 1891 | 09-2009 | N38 26.452 W122 43.514 | At the WestEnd Neighborhood Association in Santa Rosa. CA12 W. 0.6 miles from jct with US101 in Santa Rosa, N. on Dutton Av. 0.5 miles, E. on 8th St. 0.25 miles, N. on Donahue St. 0.1 miles to the barn on the W. side of the road at 819. DeTurk, true round barn, white horizontal siding, originally a race horse barn, Santa Rosa has been using since 1937, excellent condition. Exterior wall height from grade to cornice board is 16'. [www.railroadsquare.net/services/services.asp] | |
| CA-49-03 | Bloomfield | ? | UNK | In Bloomfield. Octagon house. | |||
| CA-49-04 | Petaluma | 1857 | 09-2009 | N38 14.538 W122 45.164 | WNW of Petaluma. Western Av. SW 1.9 miles from jct with Petaluma Blvd in Petaluma, continue SW (curves NW) on Spring Hill Rd. 5.1 miles to the house on the W. side of the road at 3925 at 3925. Two Rock, octagon house, 2 story, original tile roof, now asphalt shingles, large, low cupola. Built by Charles Blackburn. | ||
| CA-49-05 | Geyserville | 03-2005 | N38 42.73 W122 58.69 | At the Ferrari Carano Winery W. of Geyserville. Canyon Rd. W. 2.1 miles from jct with US101 just N. of Geyserville, N. on Dry Creek Rd. 1.7 miles to the bldg on the W. side of the road. Security bldg, octagon, tile roof, small cupola. | |||
| CA-49-06 | Guerneville | 10-2023 | N38 30.464 W122 57.859 | At Korbel Winery E. of Guerneville. River Rd. NE (curves S.) 2.7 miles from jct with Gravenstein Hwy in Guerneville, E. (left) 30', S. 400' to parking lot. Turret is 250' to the E. behind the bldg. Round turret, brick. | |||
| CA-49-07 | Bodega | 10-2023 | N38 20.183 W122 58.438 | S. of Bodega, Somona County, CA. Bodega Hwy S. 0.6 miles from jct with Salmon Creek Rd. in Bodega, E. on Shoreline Hwy 0.2 miles to the house on the N. side of the road at 17699. Fernando's B&B, geodesic house, pentagon cupola. | |||
| CA-49-08 | Bodega Bay | 10-2023 | N38 22.786 W123 04.697 | N. of Bodega Bay. CA1 (Shoreline Hwy) N. 4.25 miles from jct with Taylor St. in Bodega Bay, E. on Eureka Dr. 250', S. on El Camino Bella 50' to the house on the E. side of the road at 5410. 24 sided house, N. most & connected to CA-49-09. | |||
| CA-49-09 | Bodega Bay | 10-2023 | N38 22.780 W123 04.697 | Same as CA-49-08. 24 sided house, S. most & connected to CA-49-08. | |||
| CA-49-10 | Bodega Bay | 10-2023 | N38 22.812 W123 04.770 | N. of Bodega Bay. CA1 (Shoreline Hwy) N. 4.25 miles from jct with Taylor St. in Bodega Bay, E. on Eureka Dr. 250', N. on El Camino Bella 100' to the house on the W. side of the road at 5435. 12 sided house. | |||
| CA-49-11 | Jenner | 10-2023 | N38 31.056 W123 14.821 | NW of Jenner. CA1 NW 11.25 miles from jct with La Porte Dr. in Jenner, S. on Ft. Ross Rd. 100 yds to the bldg. Entrance, octagon bldg. | |||
| CA-49-?1 | Glen Ellen | 1900 | W. of Glen Ellen. 4100 Wake Robin Dr. Octagon house. (N38 22.117 W122 32.357) | ||||
| CA-49-?2 | Windsor | 110' | 1891 | NE of Windsor. Arata Ln. E. 1.0 miles from jct with US101 on the NW side of Windsor, N. on Brooks Rd. 0.5 miles, E. on Mt. Weske Dr. 0.3 miles to the barn on the N. side of the road at 1520 up a driveway 100 yds. Ask permission. Mt. Weske Stables, octagon barn, cupola w/walkway around it. Renovated in 2010 & used as a music studio. (N38 34.078 W122 47.662) | |||
| CA-50-01 | Stanislaus | 10-2023 | N37 38.313 W120 59.896 | In Modesto. At the W. corner of 10th & H Sts. Round turret. | |||
| CA-50-02 | Empire | 10-2023 | N37 38.312 W120 54.138 | n Empire. At the NE corner of Yosemite Blvd & Church St. Watermill Express, hexagon bldg. | |||
| CA-50-03 | Riverbank | 10-2023 | N37 42.678 W120 57.482 | In Riverbank. At the NE corner of Claribel & Oakdale Rds. Round turret. | |||
| CA-50-04 | Riverbank | 10-2023 | N37 45.119 W120 59.634 | NW of Riverbank. Patterson Rd. W. 2.0 miles from jct with Oakdale Rd. on the W. side of Riverbank, N. on McHenry Av. 1.3 miles to the turret on the E. side of the road at 7730 up a private driveway 480'. Octagon turret. | |||
| CA-51-01 | Sutter | Yuba City | 03-2010 | N39 08.522 W121 40.361 | In Yuba City. CA20 (Colusa Hwy) W. 2.0 miles from jct with CA99, N. on George Washington Blvd 150', W. on Colusa Frontage Rd. 100 yds to the church on the N. side of the road. First United Methodist, octagon church. | ||
| CA-51-02 | Live Oak | 06-2020 | N39 17.094 W121 39.800 | In Live Oak. CA99 (Live Oak Blvd) N. 0.65 miles from jct with Pennington Rd. to the church on the W. side of the road at 10720. Father's House, 10 sided church, large windowed clerestory. | |||
| CA-52-01 | Tehama | Red Bluff | 04-2019 | N40 11.298 W122 12.134 | At Tehama County Fairgrounds in Red Bluff. CA36/99 (Antelope Blvd) NE (curves E.) 1.3 miles from jct with I5 exit 649 to the fairgrounds on the N. side of the road. Lawn Arena, octagon bldg. | ||
| CA-54-01 | Tulare | Tulare | 04-2011 | N36 12.468 W119 20.573 | In Zumwalt Park in Tulare. CA137 (Tulare Av.) W. 0.85 miles from jct with CA99 exit 87, S. on M St. ½ block to the bldg on the E. side of the road. | ||
| CA-57-01 | Yolo | Esparto | SW of Esparto. CR21A W. 1.2 miles from jct with CA16 (Yolo Av.) on the S. side of Esparto, S. on CR85B 0.4 miles, W. on CR22A 0.3 miles to the barn on the S. side of the road up a driveway 0.1 miles. Ask permission. True round barn. (N38 41.000 W122 02.867) | ||||
| CA-57-02 | Dixon | 10-2019 | N38 28.405 W121 40.483 | E. of Dixon. E A St. (becomes Dixon Av.) E. 2.0 miles form jct with CA113 (1st St.) in Dixon, N. on Robben Rd. 0.5 miles, E. on Hackman Rd. 6.0 miles, N. on CR105 1.5 miles to the house on the E. side of the road. Geodesic house. |