(2) Residential District Dimensional Tables.

(a)   General Street Frontage Requirements for All Residential Districts. 560

A lot in a Residential zoning district shall have a minimum street frontage as follows:

(.1)   For Residential zoning districts with a minimum lot width requirement, the lot shall have a street frontage not less than two-thirds of the minimum lot width required for the subject zoning district.

(.2)   For all other Residential zoning districts, the lot shall have a street frontage not less than two- thirds of the width of the lot at its widest point.

(a.1)   Reserved. 561

(b)   Notes for Table 14-701-1.

[1]   In the RSA-4 district, a group of attached buildings shall contain a maximum of four buildings, including the semi-detached buildings at either end of the group. Each semi-detached building at the end of a group shall comply with the following:

(.a)   The minimum lot width shall be 30 ft.

(.b)   The minimum lot area shall be 2,700 sq. ft.

(.c)   The minimum required side yard width shall be a minimum average of 12 ft., not less than 8 ft. at any point.

[2]   In the RSA-5 district, a lot containing at least 1,600 sq. ft. of land may be divided into lots with a minimum lot size of 800 sq. ft., provided that:

(.a)   At least seventy-five percent (75%) of lots adjacent to the lot to be divided is 1,000 sq. ft. or less;

(.b)   Each of the lots created is used for one single-family attached home; and

(.c)   Each of the lots created meets the minimum lot width requirement of the zoning district.

[3]   In the RSA-5 and RSA-6 districts, buildings on lots equal to or less than 45 ft. in depth are exempt from the maximum occupied area requirement. 562

[4]   If abutting lots on both sides of an attached building contain only two stories of enclosed area, the stories above the second story of the attached house shall be set back an additional eight ft. from the minimum distance between the front facades and the front lot line required by § 14-701(2)(b)[5] below; except this requirement shall not apply to corner lots. 563

[5]   In the RSA-5 and RSA-6 districts, front facades shall comply with the following:  564

(.a)   On any given street, the distance between the front facade and the front lot line shall be no greater than the distance between the front facade and the front lot line of the principal building on the immediately adjacent lot on such street with the greater distance between its front facade and its front lot line; and shall be no less than the distance between the front facade and the front lot line of the principal building on the immediately adjacent lot on such street with the lesser distance between its front facade and its front lot line.

(.b)   On any given street, if there is no principal building on an immediately adjacent lot, then the distance between the front facade and the front lot line shall match the distance between the front facade and the front lot line on the closest building to the subject property that is on the same blockface. If there is no such building, the minimum distance between the front facade and the front lot line shall be zero.

(.c)   If the property is bounded by two or more streets, only the primary frontages as designated in § 14-701(1)(d)(.4) (Primary Frontage) shall be subject to the front facade requirements of (.a) and (.b) above. 565

[6]   Number of required yards/required width (ft). "Each" identifies that each yard must meet the required minimum size. Where each yard size is not identified, table identifies total required yard.

[7]   In the RSA-5 district, the minimum rear yard depth for lots equal to or less than 45 ft. in depth shall be 7 ft. 566

[8]   In the RSA-1, RSA-2, and RSA-3 districts, side yards shall comply with the following:  567

(.a)   For lots bounded on only one side by the side or rear yard of a semi-detached or detached structure, any structure must be constructed with a side yard that adjoins that side and that meets this minimum size.

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(.b)   For lots bounded on both sides by the side or rear yards of semi-detached or detached structures, a semi-detached structure is not permitted. Any detached structure must be constructed as stated in § 14-701(2)(b)[9].  567.1

(.c)   For lots that are not bounded on any side by the side or rear yard of a semi-detached or detached structure, any structure must be constructed with a side yard that fully meets this minimum size on either side.

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[9]   In the RSA-1, RSA-2, and RSA-3 districts, for lots bounded on both sides by the side yard of a semi-detached structure, any detached structure must be constructed with a side yard on both sides, each with at least fifty percent (50%) of the minimum semi-detached side yard width required for permitted residential uses. 568

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[10]   In the RSA-6 district, parapet walls on the front and rear facades may only extend 8 in. above the maximum height. The maximum height shall be 35 ft. if any of the following conditions apply, provided that the maximum height shall be 38 ft. if no roof deck access structures are included on the lot and any of the following conditions apply: 568.1

(.a)   The lot has an area of 960 sq. ft. or greater;

(.b)   The applicant records an instrument, or instruments, in favor of the City, in substance satisfactory to the Department of Planning and Development and in form satisfactory to the Law Department, committing to maintain the property as affordable, as defined in § 14-702(7)(a)(.1) and as regulated by § 14-702(7)(b)(.2) and § 14-702(7)(e); or

(.c)   The applicant demonstrates that at least thirty percent (30%) of lots on the same block face as the primary frontage of the applicant's property have either:

(.i)   No structures; or

(.ii)   A structure with a height of at least 30 feet (not including roof deck access structures, parapets, balustrades, or solar collectors).

Table 14-701-1: Dimensional Standards for Lower Density Residential Districts 569

{For printable PDF version, click HERE}

Previous District Name	R1	R1A	R2	R3	R4	R5	R6/7	R9A/10A	New	R5A
District Name	RSD-1	RSD-2	RSD-3	RSA-1	RSA-2	RSA-3	RSA-4	RSA-5	RSA-6	RTA-1
See § 14-701(2)(b) (Notes for Table 14-701-1) for information pertaining to bracketed numbers (e.g., "[2]") in table cells.
		Denotes building type not permitted or zoning requirements not applicable.
Lot Dimensions
Min. Lot Width (ft.)	75	65	50	50	35	25	18 [1]	16	14	25
Min. Street Frontage as taken from the front lot line (ft.)
Min. District Area (acres)
Min. Lot Area (sq. ft.)	10,000	7,800	5,000	5,000	3,150	2,250	1,620 [1]	960 [2]	700	2,250
Max. Occupied Area (% of lot)	35	35	30	30	40	50	50	Intermediate: 75; Corner: 80 [3]	80[3]	50
Front Yard Depth
Minimum (ft)	35	35	25	25	15	8	15	[4][5]	[4][5]	8
Minimum Side Yard Width [6], Permitted Residential Uses as set forth in § 14-602
Detached, Intermediate Lot (ft.)	2/15 each	2/10 each	2/10 each, 25 total	2/10 each, 25 total [8][9]	2/8 each [8][9]	2/8 each [8][9]	2/8 each	2/5 each	2/5 each	2/8 each
Detached, Corner Lot (ft.)	15	10	7	7	6	8	6	5	5	8
Semi-Detached (ft.)				25 [8]	16 [8]	8 [8]	8 [1]	5	5	8
Attached (ft.)							[1]
Minimum Side Yard Width [6], Permitted Nonresidential Uses as set forth in § 14-602
Detached, Intermediate Lot (ft.)			2/15 each	2/15 each	2/10 each	2/8 each	2/8 each	2/8 each	2/8 each	2/8 each
Detached, Corner Lot (ft.)			15	15	10	8	6	8	8	8
Rear Yard
Min. Depth (ft.)	30	30	25	25	20	Single- Family 15; other 20	Single- Family 20; other 25	9 [7]	7	Single- Family 15; Other 20
Height
Maximum (ft.)	38	38	38	38	38	38	38	38	25[10]	38

 

(c)   Notes for Table 14-701-2.

[1]   In the RM-1 district, a lot containing at least 1,920 sq. ft. of land may be divided into lots with a minimum lot size of 960 sq. ft., provided that:  570

(.a)   At least seventy-five percent (75%) of lots adjacent to the lot to be divided are 1,000 sq. ft. or less; and

(.b)   Each of the lots created meets the minimum lot width requirement of the zoning district.

[2]   In the RM-1 district, buildings on lots less than 45 ft. in depth are exempt from the maximum occupied area requirement. 571

[3]   The occupied area shall constitute no more than fifty percent (50%) of the master plan area, except that for land containing historically significant structures, occupied area shall constitute no more than seventy-five percent (75%) of the master plan area. 571.1

[4]   Open air parking shall be included in the maximum occupied area measurement in the RMX-1 and RMX-2 district. 571.2

[5]   If abutting lots on both sides of an attached building contain only two stories of enclosed area, stories above the second story of the attached house shall be set back an additional eight ft. from the minimum distance between the front facade and the front lot line described in § 14-701(2)(b)[6] below; except this requirement shall not apply to corner lots. 572

[6]   In the RM-1 district, front facades shall comply with the following:  573

(.a)   On any given street, the distance between the front facade and the front lot line shall be no greater than the distance between the front facade and the front lot line of the principal building on the immediately adjacent lot on such street with the greater distance between its front facade and its front lot line; and shall be no less than the distance between the front facade and the front lot line of the principal building on the immediately adjacent lot on such street with the lesser distance between its front facade and its front lot line.

(.b)   On any given street, if there is no principal building on an immediately adjacent lot, then the distance between the front facade and the front lot line shall match the distance between the front facade on the closest building to the subject property that is on the same blockface. If there is no such building, the minimum distance between the front facade and the front lot line shall be zero.

(.c)   If the property is bounded by two or more streets, only the primary frontages as designated in § 14-701(1)(d)(.4) (Primary Frontage) shall be subject to the front facade requirements of (.a) and (.b) above. 574

[7]   For lot lines other than street lines, the minimum setback for structures from each lot line shall be equal to 3/4 of the height of the structure. For lot lines that are street lines, the minimum setback for structures, for the purposes of this subsection, shall be measured from the centerline of that street and shall be equal to 3/4 of the height of the structure.

{For printable PDF version of image, click HERE}

[8]   Number of required yards/required width (ft). "Each" identifies that each yard must meet the required minimum size. Where each yard size is not identified, table identifies total required yard.

[9]   In the RM-1 district, lots less than 45 ft. in depth shall be exempt from rear yard area requirements but shall provide a minimum rear yard depth of 7 ft. 575

Table 14-701-2: Dimensional Standards for Higher Density Residential Districts 576

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Previous District Name	R8/9/10/10B/18/19	R11/11A/ 12/13	R14	R15/R16	RC-6	WRD/ITD	RC-4
District Name	RM-1	RM-2	RM-3	RM-4	RMX-1	RMX-2	RMX-3
See § 14-701(2)(c) (Notes for Table 14-701-2) for information pertaining to bracketed numbers (e.g., "[2]") in table cells.
		Denotes building type not permitted or zoning requirements not applicable.
District and Lot Dimensions
Min. Lot Width (ft.)	16	50	50	20
Min. Street Frontage as taken from the front lot line (ft.)					50
Min. District Area (acres)					2	1
Min. Lot Area (sq. ft.)	1,440 [1]	15,000	10,000	2,500
Max. Occupied Area (% lot area, except as otherwise provided)	Intermediate: 75; Corner: 80 [2]		50	Intermediate: 75; Corner: 80	[3][4]	75% of district area [4]	Buildings ≤ 5 stories with 1 or more dwelling units: 90; Others: 100
Front Yard Depth
Minimum (ft.)	[5][6]	[7]	20
Minimum Side Yard Width [8], Permitted Residential Uses as set forth in § 14-602
Single- or Two-family Detached, Intermediate Lot (ft.)	2/5 each	[7]	2/8 each	2/5 each			If used: Buildings ≤ 4 stories with three or fewer dwelling units = 5; Others = 8
Single- or Two-Family Detached, Corner Lot (ft.)	5	[7]	6	5
Single- or Two-Family Semi-Detached (ft.)	5	[7]	10	5
Multi-Family, Detached (ft.)	2/5 each	[7]	2/8 each	2/5 each
Multi-Family, Detached Corner Lot (ft.)	8	[7]	8	5
Multi-Family, Semi-Detached (ft.)	12	[7]	16	5
Minimum Side Yard Width [8], Permitted Nonresidential Uses as set forth in § 14-602
Intermediate Lot (ft.)	2/12 each	[7]	2/8 each	2/5 each			If used: Buildings ≤ 4 stories with three or fewer dwelling units = 5; Others = 8
Corner Lot (ft.) [1]	12	[7]	8	5
Rear Yard
Min. Depth (ft.)	9 [9]	[7]	20	5 if used
Min. Area (sq. ft.)	144 [9]	[7]
Height
Maximum (ft.)	38 [5]
Floor Area Ratio
Maximum Floor Area (% of lot area, except as otherwise provided)	No Limit	70	150	350	150 of district area, excluding streets	250 of district area, excluding streets	500

 

 

Notes

560	Amended, Bill No. 140487 (approved November 12, 2014).
561	Added, Bill No. 140487 (approved November 12, 2014). Enrolled bill numbered this as subsection (b); renumbered by Code editor. Deleted, Bill No. 150766 (approved December 8, 2015).
562	Amended, Bill No. 161003-A (approved May 8, 2017); amended, Bill No. 180346-A (approved July 18, 2018); amended, Bill No. 210075 (approved March 29, 2021); amended, Bill No. 210078-A (approved April 28, 2021).
563	Amended, Bill No. 180346-A (approved July 18, 2018); amended, Bill No. 210075 (approved March 29, 2021).
564	Amended, Bill No. 120774-A (approved January 14, 2013); amended, Bill No. 150766 (approved December 8, 2015); amended, Bill No. 180346-A (approved July 18, 2018); amended, Bill No. 210075 (approved March 29, 2021); amended, Bill No. 210078-A (approved April 28, 2021).
565	Amended, Bill No. 161003-A (approved May 8, 2017).
566	Amended, Bill No. 161003-A (approved May 8, 2017); amended, Bill No. 180346-A (approved July 18, 2018).
567	Added, Bill No. 180169 (approved May 2, 2018); amended, Bill No. 210075 (approved March 29, 2021).
567.1	Amended, Bill No. 210075 (approved March 29, 2021).
568	Added, Bill No. 180169 (approved May 2, 2018); amended, Bill No. 210075 (approved March 29, 2021).
568.1	Added, Bill No. 210078-A (approved April 28, 2021).
569	Amended, Bill No. 120774-A (approved January 14, 2013); amended, Bill No. 130804 (approved December 18, 2013); amended, Bill No. 161003-A (approved May 8, 2017); amended, Bill No. 180169 (approved May 2, 2018); amended, Bill No. 210075 (approved March 29, 2021); amended, Bill No. 210078-A (approved April 28, 2021).
570	Amended, Bill No. 150264 (approved June 16, 2015).
571	Amended, Bill No. 180346-A (approved July 18, 2018); amended, Bill No. 210075 (approved March 29, 2021).
571.1	Amended, Bill No. 210075 (approved March 29, 2021).
571.2	Amended, Bill No. 210075 (approved March 29, 2021).
572	Amended, Bill No. 180346-A (approved July 18, 2018); amended, Bill No. 210075 (approved March 29, 2021).
573	Amended, Bill No. 120774-A (approved January 14, 2013); amended, Bill No. 150766 (approved December 8, 2015); amended, Bill No. 180346-A (approved July 18, 2018); amended, Bill No. 210075 (approved March 29, 2021).
574	Amended, Bill No. 161003-A (approved May 8, 2017).
575	Amended, Bill No. 130764 (approved December 18, 2013); amended, Bill No. 180346-A (approved July 18, 2018). Bill No. 180346-A did not take into account the amendments of Bill No. 130764; the amendments have been harmonized by the Code editor.
576	Amended, Bill No. 120774-A (approved January 14, 2013); amended, Bill No. 130764 (approved December 18, 2013); amended, Bill No. 130804 (approved December 18, 2013); amended, Bill No. 150766 (approved December 8, 2015); amended, Bill No. 161003-A (approved May 8, 2017); amended, Bill No. 210075 (approved March 29, 2021); amended, Bill No. 210449 (approved July 1, 2021).