Barnstable ADU Bylaw Analysis

NOT UPDATED

Provision-by-provision analysis of Barnstable's ADU bylaw against Massachusetts Chapter 150 and 760 CMR 71.00. 3 inconsistent provisions identified.

Barnstable Bylaw Consistency

Code of the Town of Barnstable, Chapter 240 Zoning, §240-47.2 (amended May 15, 2025) · Last updated May 2025

Last reviewed: March 14, 2026

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What This Means

Barnstable amended its ADU ordinance in May 2025 to address owner-occupancy and parking requirements inconsistent with Chapter 150. However, three provisions appear to remain inconsistent with state law: a two-person occupancy cap, a 12-month rental minimum, and a restriction barring rental of both the principal dwelling and ADU simultaneously.

Permit Activity

6 of 31 approved (19%)Share of 2025 applications approved in 2025

Approved (6) Denied (0) Pending (25)

View Barnstable ADU permit data →

Data Provenance

Reviewed: March 14, 2026

AG action: None

Bylaw source: Code of the Town of Barnstable, Chapter 240 Zoning, §240-47.2 (amended May 15, 2025) · retrieved March 14, 2026

Bylaw version: May 15, 2025

13 provisions analyzed against Chapter 150

Full Compliance Analysis Available

We've mapped 13 provisions in Barnstable's ADU bylaw against Massachusetts Chapter 150. Enter your details to get the full provision-by-provision analysis.