What are the setback requirements in Cohasset, MA?
Last researched August 2026
Dimensional standards in Cohasset, MA
| R-A — front setback | 20 feet — Except "10 feet" for any portion of a principal building with less than "15 feet" in height. |
| R-A — side setback | 15 feet — Accessory building exception to "3 feet" if less than "15 feet" in height and set back at least "75 feet" from the front lot line. |
| R-A — rear setback | 15 feet — Accessory building exception to "3 feet" if less than "15 feet" in height and set back at least "75 feet" from the front lot line. |
| R-B — front setback | 30 feet — Except "15 feet" for any portion of a principal building with less than "15 feet" in height. |
| R-B — side setback | 20 feet — Accessory building exception to "6 feet" if less than "15 feet" in height and set back at least "100 feet" from the front lot line. |
| R-B — rear setback | 20 feet — Accessory building exception to "6 feet" if less than "15 feet" in height and set back at least "100 feet" from the front lot line. |
| R-C — front setback | 30 feet — Except "15 feet" for any portion of a principal building with less than "15 feet" in height. |
| R-C — side setback | 20 feet — Accessory building exception to "6 feet" if less than "15 feet" in height and set back at least "100 feet" from the front lot line. |
| R-C — rear setback | 30 feet — Accessory building exception to "6 feet" if less than "15 feet" in height and set back at least "100 feet" from the front lot line. |
| HAR — front setback | 15 feet |
| HAR — side setback | 10 feet |
| HAR — rear setback | 15 feet |
| VIL — front setback | 15 feet |
| VIL — side setback | 10 feet — Minimum side yard requirements do not apply where the side lot line abuts a railroad right-of-way. |
| VIL — rear setback | 15 feet |
| 3A-C — front setback | 50 feet — "15 feet" for an accessory freestanding sign; "100 feet" for any dwelling containing two or more dwelling units. |
| 3A-C — side setback | 20 feet — "50 feet" for any dwelling containing two or more dwelling units. |
| 3A-C — rear setback | 20 feet — "50 feet" for any dwelling containing two or more dwelling units. |
| OS — front setback | 30 feet |
| OS — side setback | 20 feet |
| OS — rear setback | 30 feet |
| All districts — front setback measurement rule on narrow rights-of-way | Where a street has a right-of-way width of less than 40 feet, the setback distance shall include an additional 20 feet and be measured from the center line of the street |
Related questions
What are the setback requirements in Cohasset, MA?
Setbacks vary by district. Examples — R-A front setback: 20 feet (conditions apply); R-A side setback: 15 feet (conditions apply); R-A rear setback: 15 feet (conditions apply); R-B front setback: 30 feet (conditions apply). Always confirm the exact yard requirements for your district with Cohasset, MA.
Full investor analysis
Setbacks vary by district. The full Cohasset, MA report compares the dimensional standards and overlays published across the municipality. First town report is free.
Get the full Cohasset, MA report free →More about Cohasset, MA zoning
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This summary is AI-generated from public municipal sources and is not legal, engineering, or land-use advice. Always verify zoning with Cohasset, MA officials before making decisions.
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