WeVote
Log In

Bill

Bill

SB 543

relative to long-term care eligibility and making an appropriation therefor.

2026 Regular Session Introduced by Daryl Abbas and 7 co-sponsors

SB 543 standardizes ADU/JADU rules statewide, streamlines permits, caps fees, and preempts local rules to boost housing production and reduce barriers.

Inexpedient to Legislate: MA RC 182-154 04/23/2026 HJ 11
0
WeVote Research Nonpartisan
Bill Summary · SB 543

SB 543 — Public Peace, Health, Safety & Welfare (McNerney)

Status: Action postponed indefinitely (06/03/2025)
Introduced: February 20, 2025

Purpose / Intent

SB 543 updates state rules governing accessory dwelling units (ADUs) and junior accessory dwelling units (JADUs) to clarify size measures, streamline permitting, and extend fee and ordinance standards that currently apply to ADUs to JADUs. The bill aims to promote housing production by reducing local barriers and creating uniform statewide standards for both ADUs and JADUs.

Key provisions

  • Definitions and sizing

    • Redefines “junior accessory dwelling unit” (JADU) to mean no more than 500 square feet of interior livable space (switches from a general square‑footage measure to an “interior livable space” metric).
    • Revises ADU size references so several statutory size ceilings and minimums are based on interior livable space.

  • State guidance and preemption

    • Extends the Legislature’s ADU intent declarations and the Department of Housing and Community Development’s (HCD) authority to adopt or amend implementation guidelines to explicitly cover JADUs.
    • Specifies that state standards for JADUs (like ADUs) supersede conflicting local ordinances, except where state law allows exceptions.

  • Local ordinance review

    • Requires local agencies to submit any adopted JADU ordinance to HCD within 60 days for review.
    • HCD must notify a local agency if an ordinance is noncompliant; failure to submit or to timely respond may result in the ordinance being nullified and void.

  • Permitting process and timelines

    • Requires ministerial consideration of JADU permit applications (paralleling ADU rules) and prohibits using unrelated local ordinances/policies to delay or deny permits.
    • Permitting agencies must determine application completeness and provide written notice within 15 business days.
    • If incomplete, the notice must list missing items and explain how to cure; agencies must provide an appeal process and issue a final written determination within 60 business days after receipt of a written appeal.

  • Fees, connections, and charges

    • Extends existing limits on construction, connection, impact fees, and capacity charges that apply to ADUs to also cover JADUs.
    • Prohibits impact fees for:
    • ADUs of 750 square feet of interior livable space or less; and
    • JADUs of 500 square feet of interior livable space or less.
    • Requires any impact fee on ADUs larger than 750 sq ft to be charged proportionately to the primary dwelling’s square footage.
    • Continues prohibition on requiring new or separate utility connections (and related connection fees) for certain ADUs/JADUs.

  • School fees / assessable space

    • Clarifies that an ADU or JADU under 500 square feet of interior livable space does not increase assessable space by 500 sq ft for school district fees and dedications.

  • Local development standards

    • Converts existing prohibitions on local agencies establishing overly restrictive ADU size, setback, lot coverage, floor area ratio, or minimum lot size requirements to metrics based on interior livable space.
    • Retains ministerial approval requirements for certain ADU/JADU configurations and preserves limitations on local imposition of fire sprinklers if not required for the primary residence.

Who is affected

  • Homeowners and developers seeking to build ADUs or JADUs (fewer fee barriers, clearer sizing rules, faster permitting/appeal timelines).
  • Local agencies (planning, permitting, and utility districts) — must comply with state timelines, submit ordinances to HCD, and may have local rules preempted.
  • Department of Housing and Community Development — gains explicit guideline authority over JADUs and an enforcement/review role.
  • School districts and special districts — fee and assessable‑space rules clarified; certain impact and connection fees limited.
  • Water agencies, utilities, and special districts — restricted in requiring separate connections or related charges for qualifying ADUs/JADUs.

Procedural / timeline notes

  • The bill progressed through multiple policy committees (Housing; Local Government; Assembly Housing & Community Development; Assembly Local Government; Assembly Appropriations) but, per the record provided, final action was “postponed indefinitely” on 06/03/2025.
  • Key procedural deadlines embedded in the bill include 60‑day reviews for adopted local JADU ordinances and 15 business‑day completeness notices from permitting agencies, with 60 business days for final appeal determinations.

If you’d like, I can produce a one‑page handout highlighting how the bill would change permit timelines and fees for homeowners and for local permitting staff.

Compiled from official sources — confirm details with the bill’s official record.

Sign in to ask a question.