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New Hampshire · 2025 Regular Session · Bill

HB 577: relative to modifying the definition of ADUs.

Enacted Official data

  1. Introduced
  2. In committee
  3. Passed one chamber
  4. Passed both chambers
  5. Enacted

Last official action: ·Record last updated:

Plain-language summary

HB 577 is a bill introduced in the New Hampshire House on January 16, 2025. According to its official title, it concerns: relative to modifying the definition of ADUs. Primary sponsor: Joe Alexander (Republican). It lists 8 additional sponsors. Most recent recorded action (July 22, 2025): Signed by Governor Ayotte 07/15/2025; Chapter 197; eff. 07/01/2025 HJ 18.

Generated automatically from the official title, sponsor list, and status record only. It does not characterize the bill’s purpose or effects. How summaries are written

Sponsors

Sponsors by party (alphabetical): Democratic 2 · Republican 6

NameRolePartyChamberDistrict
Joe AlexanderPrimary sponsorRepublicanHouseHillsborough 29
Hope E DamonCo-sponsorNot applicable (committee)——
Jessica GrillCo-sponsorDemocraticHouseHillsborough 18
Dan InnisCo-sponsorRepublicanSenate7
Lisa MazurCo-sponsorRepublicanHouseHillsborough 44
Dan McGuireCo-sponsorRepublicanHouseMerrimack 14
Keith MurphyCo-sponsorRepublicanSenate16
Alissandra MurrayCo-sponsorDemocraticHouseHillsborough 20
Joe SweeneyCo-sponsorRepublicanHouseRockingham 25

“Support” is shown only as formal sponsorship recorded by the legislature. Roll-call votes are available on the official bill page.

Recent official actions

  1. Signed by Governor Ayotte 07/15/2025; Chapter 197; eff. 07/01/2025 HJ 18
  2. Enrolled Adopted, VV, (In recess 06/26/2025); SJ 18
  3. Enrolled (in recess of) 06/26/2025 HJ 18 P. 59
  4. Enrolled Bill Amendment # 2025-2874e: AA VV (in recess of) 06/26/2025 HJ 18 P. 57
  5. Enrolled Bill Amendment # 2025-2874e Adopted, VV, (In recess of 06/26/2025); SJ 18
  6. Sen. Fenton Floor Amendment # 2025-2162s, AF, VV; 05/15/2025; SJ 13
  7. Ought to Pass: MA, VV; OT3rdg; 05/15/2025; SJ 13
  8. Committee Report: Ought to Pass, 05/15/2025, Vote 5-1; SC 21A
  9. Hearing: 03/25/2025, Room 100, SH, 10:45 am; SC 14
  10. Introduced 03/06/2025 and Referred to Commerce; SJ 7
  11. Ought to Pass with Amendment 2025-0449h: MA VV 03/06/2025 HJ 7 P. 15
  12. Amendment # 2025-0449h: AA VV 03/06/2025 HJ 7 P. 15

Showing 12 most recent of 17 actions. Full history

Sources

  1. Open States / Plural (data from the official legislature website)
  2. Official legislature source