Dimensional regulations
(a) The following Table of Dimensional Regulations lists the height of buildings, the size and dimension of yards, and the area and coverage of lots permitted in each zone. The dimensional requirements listed are subject to all other provisions of this ordinance, and shall be deemed to be the minimal requirements.
TABLE OF DIMENSIONAL REGULATIONS
| Minimums |
Maximum
Heights |
||||||||
| Zoning District/Use |
Lot
Size (square feet) |
Lot
Width (feet) |
Front
Yard (feet) |
Rear
Yard (feet) |
Side Yard
(each side) (feet) |
Building
Coverage (percent) |
Main
Structure*+ (feet) |
Accessory
Structure# (feet) |
|
| R-80 Residence zone | |||||||||
| Single-family dwelling | 80,000 | 200 | 59 | 71 | 47 | 9 | 30 | 16 | |
| Two-family duplex | See section 12.24 | ||||||||
| Other permitted uses | 80,000 | 200 | 59 | 71 | 47 | 9 | 30 | 16 | |
| Multifamily dwellings | (See section 17 for regulations) | ||||||||
| R-40 Residence zone | |||||||||
| Single-family dwelling | 40,000 | 150 | 47 | 71 | 41 | 13 | 30 | 16 | |
| Two-family duplex | See section 12.24 | ||||||||
| Multifamily dwelling | (See section 17 for regulations) | ||||||||
| Other permitted uses | 20,000 | 150 | 47 | 71 | 41 | 13 | 30 | 16 | |
| R-20 Residence zone | |||||||||
| Single-family dwelling | 20,000 | 100 | 35 | 35 | 24 | 17 | 30 | 16 | |
| Multifamily dwelling | (See sections 12.9 or 17 for regulations) | ||||||||
| Other permitted uses | 20,000 | 120 | 35 | 35 | 24 | 17 | 30 | 16 | |
| R-10 Residence zone | |||||||||
| Single-family dwelling | 10,000 | 100 | 29 | 24 | 12 | 22 | 30 | 16 | |
| Multifamily dwelling | (See sections 12.9 or 17 for regulations) | ||||||||
| Other permitted uses | 11,000 | 100 | 35 | 35 | 24 | 17 | 30 | 16 | |
| R-10A Residence zone | |||||||||
| Single-family dwelling | 10,000 | 100 | 29 | 24 | 12 | 22 | 30 | 16 | |
| Multifamily dwelling | (See sections 12.9 or 17 for regulations) | ||||||||
| Other permitted uses | 11,000 | 100 | 29 | 24 | 12 | 22 | 30 | 16 | |
* Maximum main structure heights for buildings in all residential zones shall not exceed 26 feet if the roof pitch is less than 4:12.
+ That all structures located in the special flood hazard areas described in section 4.7 of this ordinance, utilizing either a FEMA Base Flood Elevation (BFE), or the CRMC STORMTOOLS Design Elevation (SDE), shall have a height limitation as detailed below, For any structure designed with a BFE or SDE, the requirements as they apply to the assigned flood zone shall be adhered to.
| Height to the BFE/SDE from average grade at the front of the foundation [in feet] | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 feet and greater** |
| Maximum Height Limit above the BFE/SDE[in feet] |
30
(25) |
29
(24) |
28
(23) |
27
(22) |
26
(21) |
25
(20) |
24
(20) |
23
(19) |
22
(18) |
21 (17) |
20
(16) |
20
(15) |
19
(14) |
18
(14) |
17
(13) |
17
(12) |
15
(11) |
14
(10) |
14
(9) |
13
(9) |
**A maximum of 1.0 story of living area
For structures designed with a pitch of less than 4:12, the height limitation is in parenthesis ().
# That all accessory structures located in the Special Flood Hazard Areas described in Section 4.7 of this ordinance, utilizing either a Base Flood Elevation (BFE), or the STORMTOOLS Design Elevation (SDE), shall have a height limitation as detailed below. For any structure designed with a BFE or SDE, the requirements as they apply to the assigned Flood Zone shall be adhered to.
| Height to the designed BFE/SDE from average grade at the front of the foundation (in feet)*** | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 |
| Maximum Height Limit above the designed BFE/SDE (in feet) | 17 | 16 | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 |
*** For detached accessory structures that have a height to the BFE/SDE from the average grade at the front of the foundation higher than 9 feet, no internal living area shall be allowed within the structure. Proposed structures shall be built in compliance with all local, state and federal regulations and shall only be used for storage, building access, or vehicle parking areas.
| Zoning District/Use | (Minimums) | (Maximums) | |||||
|
Lot
size (square feet) |
Lot
Width (feet) |
Front
Yard (feet) |
Rear
Yard (feet) |
Side Yard
(each side) (feet) |
Building
Coverage (percent)* |
Height of
Structures (feet)+ |
|
|
B-A Any permitted use
(except Inn) |
20,000 | 100 | 24 | 35 | 12 | 26 | 30 |
| B-A Inn | 20,000 | 100 | 24 | 35 | 12 | 26 | 35*** |
| B-B Any permitted use | 20,000 | 100 | 24 | 35 | 12 | 26 | 30 |
| B-C Any permitted use | 20,000 | 100 | 24 | 35 | 24 | 26 | 30 |
| I-A Any permitted use | 40,000 | 150 | 41 | 41 | 41 | 26 | 30 |
| I-B Any permitted use | 40,000 | 150 | 41 | 41 | 41 | 26 | 30 |
| UR Any permitted use** | |||||||
A commercial structure shall be set back at least 47 feet from any boundary of a residential zone. An industrial structure shall be set back at least 47 feet from any boundary of a B-B or B-C zone, and at least 100 feet from any boundary of a residential, public use, or B-A zone.
*Except in high water table limitations overlay district.
**Dimensional regulations shall meet the requirements of the Narragansett urban renewal project RI-24, as amended.
***Subject to conditions:
a. That the 40 foot height limit be restricted to parcels of 20,000 square feet or more in area if sewered, or 25,000 square feet or more if not sewered.
b. That the roof of an inn exceeding 35 feet in height comply with one of the following:
1. Have a minimum slope of 6:12 for typical gable or hip roofs; or
2. Have a minimum slope of 2:12 for the cap section of gambrel or mansard roof from the deckline to the ridge.
c. That any such roof may contain up to 30 percent flat roof provided such roof be adequately screened from view. The determination of screening adequacy shall rest with the planning board.
+ That all structures located in the special flood hazard areas described in section 4.7 of this ordinance, utilizing either a FEMA Base Flood Elevation (BFE), or the CRMC STORMTOOLS Design Elevation (SDE), shall have a height limitation as detailed below, For any structure designed with a BFE or SDE, the requirements as they apply to the assigned flood zone shall be adhered to.
| Height to the designed BFE/SDE from average grade at the front of the foundation [in feet] | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 feet and greater** |
| Maximum Height Limit above the designed BFE/SDE [in feet] |
34
(29) |
33
(28) |
32
(27) |
31
(26) |
30
(25) |
29
(24) |
28
(23) |
27
(22) |
26
(21) |
25
(20) |
24
(19) |
23
(18) |
22
(17) |
21
(16) |
20
(15) |
19
(14) |
18
(13) |
17
(12) |
16
(11) |
15
(10) |
| Inn Height to the BFE/SDE from average grade at the front of the foundation [in feet] | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 feet and greater** |
| Total Inn Height above BFE/SDE [in feet] | 39 | 38 | 37 | 36 | 35 | 34 | 33 | 32 | 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | 23 | 22 | 21 | 20 |
**A maximum of 1.0 story.
For structures designed with a pitch of less than 4:12, the height limitation is in parenthesis ().
(b) Any lot, or recorded land condominium unit used for residential purposes that is less than or equal to 23,000 square feet of gross lot area, as defined herein, (and not located in Breakwater Village), shall be subject to the FAR regulations set forth in subsections 1—5 below. In addition, these lots shall utilize net lot area for lot coverage calculation purposes. A special use permit may be requested through the zoning board for homes exceeding four bedrooms through provisions of section 12.23 of this ordinance.
(1) Purpose: The purpose of the floor area ratio requirement is to limit the impacts of the use that results from excessive building size or massing. The FAR threshold is intended to promote a graceful transition within neighborhoods containing standard and substandard lots that are experiencing development. The FAR threshold supports infill development that is compatible and complimentary to existing neighborhoods by establishing special development standards in subsection (5) below.
2. Floor area ratio applicability: Floor area ratio shall apply to all principle and accessory residential structures on lots under 23,000 square feet in gross area in all zoning districts in the Town of Narragansett. All properties regulated by floor area ratio shall conform to the permitted floor area ratio in addition to meeting all of the dimensional regulations elsewhere required in the zoning ordinance.
(3) Maximum floor area: The maximum floor area on a lot or parcel shall be the greatest of the following:
a. The floor area to be calculated using the following matrix located in subsection (5) below;
b. The floor area approved prior to June 21, 2021 as part of a valid existing approved planned residential development or site review.
(4) Calculating maximum floor area. The maximum floor area shall be calculated based on all residential buildings on a lot, according to the criteria set forth in the definition of floor area ratio in section 2.2 of the zoning ordinance and the standards provided in the following matrix.
(5) Floor area ratio matrix:
Tier Net Lot Area FAR Maximum Hardscape Min Max 1 0 2,000 0.48 61% 2 2,001 3,000 0.43 52% 3 3,001 4,000 0.39 43% 4 4,001 5,000 0.35 43% 5 5,001 6,000 0.30 35% 6 6,001 7,000 0.30 35% 7 7,001 8,000 0.29 30% 8 8,001 9,000 0.28 30% 9 9,001 10,000 0.27 30% 10 10,001 11,000 0.26 30% 11 11,001 12,000 0.25 30% 12 12,001 13,000 0.25 30% 13 13,001 14,000 0.24 30% 14 14,001 15,000 0.24 26% 15 15,001 16,000 0.23 26% 16 16,001 17,000 0.23 26% 17 17,001 18,000 0.23 26% 18 18,001 19,000 0.22 26% 19 19,001 20,000 0.22 26%
* In no instance shall the calculated gross floor area of structure in any tier be required to be less than the maximum allowance for the tier above it.
(Ch. 789, § 3, 9-20-1999; Ch. 811(1), § 1(6.4), 3-4-2002; Ch. 954, § 2, 1-17-2012; Ch. 1016, § 5, 5-2-2016; Ch. 1061, §§ 4—7, 2-19-2019; Ch. 1064, §§ 1, 2, 5-20-2019; Ch. 1072, § 4—6, 1-6-2020; Ch. 1087, § 2, 6-21-2021; Ch. 1100, § 2, 10-17-2022; Ch. 1118, §§ 7—9, 12-18-2023; Ch. 1124, § 2, 5-20-2024)