Westport City Zoning Code

The purpose of the AA District is to allow single-family residences on a minimum one acre lot. The AA District provisions are intended to encourage low density residential development for primarily residential and related purposes in areas served primarily by on-site sewerage facilities.

Any use permitted in a Residence AAA District, subject to the same approvals and conditions as specified in §11-2 of these regulations.

Each lot shall have a minimum area of one (1) acre (43,560 square feet) and shall be of such shape that a square with one hundred fifty (150) feet on each side will fit on the lot.

No principal building, structure or use or accessory building or structure shall extend closer than thirty (30) feet from any street line or twenty-five (25) feet from any side or rear lot line.

No principal building or other structure shall exceed a height of forty (40) feet. No accessory building or structure shall exceed a height of sixteen (16) feet, except barns as defined in §11-2.4.7 and light poles for lighted athletic fields on town owned public school property as defined in §11-2.4.8. Dormers on residential properties and mixed use developments must be setback from the face of the building at least 1 foot and from the side of the building at least 2 feet. Dormers shall comply with all height requirements.

(866, 06/17/2026)

The total coverage shall not exceed twenty-five percent (25%) of the lot area. Total coverage shall include fifty percent (50%) of the surface area of tennis courts. Permanent and temporary light poles for lighted athletic fields on town owned public school property as defined in §11-2.4.8 shall be exempt from coverage.

No mandatory requirement.

No mandatory requirement.

All buildings and structures located within a designated Historic District shall comply with the design regulations of the Historic District Commission.

Signs shall be permitted in accordance with §33 of the Supplementary Regulations.

Off-street parking and loading shall be provided in accordance with §34 of the Supplementary Regulations.

Landscaping, screening and buffer areas for Special Permit uses shall be provided in accordance with §35 of the Supplementary Regulations.

Lot area, shape and setbacks for Open Space Subdivisions shall be in accordance with the requirements of §56 of the Subdivision Regulations.

The following additional uses are permitted subject to the conditions provided for in §32 and Special Permit & Site Plan approval in accordance with §43, herein. (835, 11/01/2023) 

Cottage Cluster Developments

(835, 11/01/2023)