Nantucket ADU Bylaw Analysis

NOT UPDATED

Provision-by-provision analysis of Nantucket's ADU bylaw against Massachusetts Chapter 150 and 760 CMR 71.00. 4 inconsistent provisions identified.

Nantucket Bylaw Consistency

Nantucket Zoning Bylaw §139-16A · Last updated Pre-2025 (not updated for Chapter 150)

Last reviewed: February 15, 2026

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What This Means

Nantucket’s HDC review adds a layer of design scrutiny that doesn’t exist on the mainland. The 4 inconsistent provisions are preempted by state law, but the island’s unique regulatory culture means pushback is common. Budget extra time for approvals.

Permit Activity

27 of 27 approved (100%)Share of 2025 applications approved in 2025

Approved (27) Denied (0) Pending (0)

View Nantucket ADU permit data →

Data Provenance

Reviewed: February 15, 2026

AG action: None

Bylaw source: Zoning Bylaw · retrieved February 19, 2026

Version date not published; analysis based on publicly available text retrieved February 19, 2026

7 provisions analyzed against Chapter 150

Full Compliance Analysis Available

We've mapped 7 provisions in Nantucket's ADU bylaw against Massachusetts Chapter 150. Enter your details to get the full provision-by-provision analysis.