– Apr 11, 2006
| Number | County | Town | Size | Built | Verif | GPS | Description |
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| RI-01-01 | Bristol | Bristol | 1856 | In Bristol. 41 High Street. Lemuel C. Richmond octagon house. | |||
| RI-02-01 | Kent | Warwick | In Warwick. 25 S Fair St. Octagon house, 2-story. | ||||
| RI-04-01 | Providence | Providence | GONE | In Providence. On Ives St. Octagon house. Razed about 1990. | |||
| RI-04-02 | Cranston | c1854 | In Cranston. 60 Phenix Av. Battey octagon house. | ||||
| RI-04-03 | Providence | c1856 | In Providence. 669 Public St. Miles B. Lawton octagon house, 2-story, center chimney. | ||||
| RI-04-04 | East Providence | c1900 | In East Providence. 21 Sunnyside Av. Octagon house. Built as the bandstand for the short-lived Boyden Heights Amusement Park. Converted to private residence by 1916. | ||||
| RI-04-05 | Georgiaville | c1865 | In Georgiaville. 108 Farnum Pike. Octagon house. | ||||
| RI-05-01 | Washington | Carolina | 1857 | N41 27.83 W71 39.71 | In Carolina, Richmond Township. RI 112 N. 0.7 miles from jct with RI91 in Carolina to the house at the corner of CT 112 and Shannock Hill Rd. Octagon house, 2 story, horizontal wood siding, flat roof, large windowed cupola. |