HB 577 (2025): relative to modifying the definition of ADUs.
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@misc{bill-2025-hb577, title = {HB 577 (2025): relative to modifying the definition of ADUs.}, howpublished = {Granite Record}, url = {https://graniterecord.org/bill/2025/hb577}, note = {Accessed 19 Oct. 2026} }
HB 577 (2025)
relative to modifying the definition of ADUs.
- Status: Signed into law
- Term: 2025-2026
- House committee: Housing
- Senate committee: Commerce
- Subject: Housing
- Chapter law: 197
The Story
It was introduced on January 9, 2025 and referred to the House Housing committee. The committee held a public hearing on February 4, 2025, with 189 people signed in online: 135 in support, 52 in opposition and 2 as neutral. The committee held a work session on February 11, 2025. The committee met in executive session on February 11, 2025 to vote on its recommendation. The committee voted unanimously, 18–0, to recommend that the House pass it with changes (amendment 2025-0449h), and the report was placed on the consent calendar. The committee's amendment (2025-0449h) was adopted on a voice vote on March 6, 2025, changing the text of the bill. On March 6, 2025 the House voted to pass it with changes on a voice vote. It crossed to the Senate on March 6, 2025 and was referred to the Senate Commerce committee. The committee held a public hearing on March 25, 2025. The committee voted 5–1 to recommend that the Senate pass it. A floor amendment (2025-2162s), offered by Sen. Donovan Fenton, was rejected on a voice vote on May 15, 2025. On May 15, 2025 the Senate voted to pass it on a voice vote and ordered it to a third reading. The bill was enrolled on June 26, 2025 — the final check of the text before it goes to the governor — and an enrolled bill amendment (2025-2874e) was adopted on a voice vote to correct technical errors found after passage. The governor signed it on July 15, 2025, making it Chapter 197 of the session laws.
Sponsors
- Rep. Joe Alexander (R - Hills 29) (prime sponsor)
- Rep. Hope Damon (D - Sull 8)
- Rep. Lisa Mazur (R - Hills 44)
- Rep. Alissandra Murray (D - Hills 20)
- Rep. Jessica Grill (D - Hills 18)
- Sen. Daniel Innis (R - SD7)
- Rep. Dan McGuire (R - Merr 14)
- Rep. Joe Sweeney (R - Rock 25)
- Sen. Keith Murphy (R - SD16)
Hearings and Sessions
- February 4, 2025, 10:00 AM: public hearing, House Housing, LOB 305
- February 11, 2025, 10:00 AM: full committee work session, House Housing, LOB 305
- February 11, 2025, 10:00 AM: executive session, House Housing, LOB 305
- March 6, 2025: consent calendar, House
- March 25, 2025, 10:45 AM: hearing, Senate Commerce, SH 100
- May 15, 2025: floor debate, Senate
Votes
- March 6, 2025, House: Ought to Pass with Amendment 2025-0449h — voice vote, passed
- May 15, 2025, Senate: Ought to Pass — voice vote, passed
The Docket
- January 9, 2025: Introduced (in recess of) 01/09/2025 and referred to Housing
- February 4, 2025: Public Hearing: 02/04/2025 10:00 am LOB 305
- February 11, 2025: Full Committee Work Session: 02/11/2025 10:00 am LOB 305
- February 11, 2025: Executive Session: 02/11/2025 10:00 am LOB 305
- February 18, 2025: Committee Report: Ought to Pass with Amendment # 2025-0449h 02/18/2025 (Vote 18-0; CC)
- March 6, 2025: Amendment # 2025-0449h: AA VV 03/06/2025
- March 6, 2025: Ought to Pass with Amendment 2025-0449h: MA VV 03/06/2025
- March 6, 2025: Introduced 03/06/2025 and Referred to Commerce
- March 25, 2025: Hearing: 03/25/2025, Room 100, SH, 10:45 am
- May 15, 2025: Committee Report: Ought to Pass, 05/15/2025, Vote 5-1; SC 21A
- May 15, 2025: Sen. Fenton Floor Amendment # 2025-2162s, AF, VV; 05/15/2025
- May 15, 2025: Ought to Pass: MA, VV; OT3rdg; 05/15/2025
- June 26, 2025: Enrolled Bill Amendment # 2025-2874e Adopted, VV, (In recess of 06/26/2025)
- June 26, 2025: Enrolled Bill Amendment # 2025-2874e: AA VV (in recess of) 06/26/2025
- June 26, 2025: Enrolled (in recess of) 06/26/2025
- June 26, 2025: Enrolled Adopted, VV, (In recess 06/26/2025)
- July 15, 2025: Signed by Governor Ayotte 07/15/2025; Chapter 197; eff. 07/01/2025
Laws It Would Change
Related Bills
- HB 1006 (2026): relative to on-site parking requirements for accessory dwelling units.