Town of Portsmouth
Town of Portsmouth Zoning Ordinance
§ IV-B

Land Space Requirements Table

Minimum Yard SetbacksMaximum Bldg. Height
Zoning DistrictMin. Lot SizeMin. Lot Area per Dwelling UnitMin. Lot FrontageFrontRearSideStoriesFeetMax. % Lot Coverage
RESIDENTIAL DISTRICTS
R-1010,000*10,000**100'20'20'10'2-1/235'20%
R-2020,000*15,000**110'30'30'15'2-1/235'20%
R-3030,000*30,000**125'30'30'20'2-1/235'20%
R-4040,00040,000125'30'30'20'2-1/235'20%
R-6060,00060,000200'50'50'50'2-1/235'10%
COMMERCIAL DISTRICTS
C-120,000110'30'20'15'235'25%
TC-C
[Added
10-27-2004
]
20,000110'5'20'15'335'35%
INDUSTRIAL DISTRICTS
I-L40,000200'60'50'30'235'25%
I-H40,000200'60'50'30'235'25%
WATERFRONT DISTRICTS
WD20,00015,000110'30'30'15'2-1/235'30%
*Except 40,000 square feet where not serviced by a public water system
**Where more than one dwelling unit is permitted on a lot.