SB 84-FN - AS AMENDED BY THE SENATE
03/20/2025 0366s
03/20/2025 1151s
2025 SESSION
25-1006
06/02
SENATE BILL 84-FN
AN ACT relative to zoning procedures concerning residential housing.
SPONSORS: Sen. Murphy, Dist 16; Sen. Innis, Dist 7; Sen. McGough, Dist 11; Rep. Alexander Jr., Hills. 29; Rep. Osborne, Rock. 2
COMMITTEE: Commerce
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ANALYSIS
This bill sets maximum lot sizes for single-family residential uses based on the type of infrastructure servicing the lot.
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Explanation: Matter added to current law appears in bold italics.
Matter removed from current law appears [in brackets and struckthrough.]
Matter which is either (a) all new or (b) repealed and reenacted appears in regular type.
03/20/2025 0366s
03/20/2025 1151s 25-1006
06/02
STATE OF NEW HAMPSHIRE
In the Year of Our Lord Two Thousand Twenty Five
AN ACT relative to zoning procedures concerning residential housing.
Be it Enacted by the Senate and House of Representatives in General Court convened:
1 New Section; Lot Sizes for Single-Family Residential Uses. Amend RSA 674 by inserting after section 18-a the following new section:
674:18-b Lot Sizes for Single-Family Residential Uses.
I. In a majority of land zoned to permit single-family residential uses in a municipality, for lots not serviced by municipal or community sewer infrastructure, no ordinance shall require lot sizes greater than 88,000 square feet for single-family residential uses. In determining the majority of land zoned for residential uses, the municipality shall include all areas zoned residential or any non-residential zoned areas that allow single-family homes.
II. For lots serviced by municipal or community water infrastructure, no ordinance shall require lot sizes greater than 44,000 square feet for single-family residential uses if there is adequate water system capacity to accommodate development on such lots, unless the municipality provides empirical evidence that the water system cannot support additional homes.
III. For lots serviced by municipal or community sewer infrastructure, no ordinance shall require lot sizes greater than 22,000 square feet for single-family residential uses if there is adequate sewage system capacity to accommodate development on such lots, unless the municipality provides empirical evidence that the sewer system cannot support additional homes.
IV. The requirements of this section shall not be construed to limit the potential for development of lots created prior to July 1, 2024.
V. Nothing in this section shall override or supersede applicable municipal zoning regulations unrelated to minimum lot sizes.
VI. Nothing in this section shall override or supersede applicable department of environmental services septic and well regulations or municipal wetlands and septic regulations which may require applicants on a case-by-case basis to have larger lot sizes to meet these regulations.
2 Effective Date. This act shall take effect July 1, 2026.
25-1006
3/24/25
SB 84-FN- FISCAL NOTE
AS AMENDED BY THE SENATE (AMENDMENTS #2025-0366s and #2025-1151s)
AN ACT relative to zoning procedures concerning residential housing.
FISCAL IMPACT:
| ||||
Estimated Political Subdivision Impact | ||||
| FY 2025 | FY 2026 | FY 2027 | FY 2028 |
County Revenue | $0 | $0 | $0 | $0 |
County Expenditures | $0 | $0 | $0 | $0 |
Local Revenue | $0 | $0 | $0 | $0 |
Local Expenditures | $0 | $0 | Indeterminable Increase | Indeterminable Increase |
METHODOLOGY:
This bill sets maximum lot sizes for single-family residential uses based on the type of infrastructure servicing the lot.
This bill sets maximum lot size requirements for single-family residential uses depending on the availability of municipal or community sewer and water infrastructure. For lots without municipal/community sewer, the maximum lot size is set at 88,000 square feet. For those with municipal/community water, the limit is 44,000 square feet, unless there’s proof of inadequate water capacity. For lots with municipal/community sewer, the maximum is 22,000 square feet unless there's proof of inadequate sewer capacity to support more homes.
The New Hampshire Municipal Association indicates that municipalities will incur indeterminable costs with amending local zoning ordinances, determining what defines a majority of land zoned for residential uses, assessing if the water or sewer system has adequate capacity, and gathering empirical evidence to challenge the lot size requirement.
AGENCIES CONTACTED:
New Hampshire Municipal Association
| Date | Amendment |
|---|---|
| Feb. 11, 2025 | 2025-0366s |
| March 18, 2025 | 2025-0796s |
| March 18, 2025 | 2025-1067s |
| March 18, 2025 | 2025-1094s |
| March 20, 2025 | 2025-1151s |
| Date | Body | Type |
|---|---|---|
| Jan. 28, 2025 | Senate | Hearing |
| Senate | Floor Vote | |
| March 6, 2025 | Senate | Floor Vote |
| March 13, 2025 | Senate | Floor Vote |
| March 13, 2025 | Senate | Floor Vote |
| March 13, 2025 | Senate | Floor Vote |
| March 20, 2025 | Senate | Floor Vote |
| April 15, 2025 | House | Hearing |
| May 6, 2025 | House | Exec Session |
April 23, 2025: Executive Session: 05/06/2025 10:00 am LOB 305
April 1, 2025: Public Hearing: 04/15/2025 10:00 am LOB 302-304
March 28, 2025: Introduced (in recess of) 03/27/2025 and referred to Housing HJ 11
March 20, 2025: Ought to Pass with Amendments #2025-0366s, and #2025-1151s, RC 13Y-10N, MA; OT3rdg; 03/20/2025; SJ 8
March 20, 2025: Sen. Ricciardi Floor Amendment # 2025-1067s, AF, VV; 03/20/2025; SJ 8
March 20, 2025: Ought to Pass with Amendments #2025-0366s, and #2025-1151s, RC 13Y-10N, MA; OT3rdg; 03/20/2025; SJ 8
March 20, 2025: Sen. Watters Floor Amendment # 2025-1151s, AA, VV; 03/20/2025; SJ 8
March 20, 2025: Sen. Ricciardi Floor Amendment # 2025-1067s, AF, VV; 03/20/2025; SJ 8
March 20, 2025: Committee Amendment # 2025-0366s, AA, VV; 03/20/2025; SJ 8
March 6, 2025: Committee Report: Ought to Pass with Amendment # 2025-0366s, 03/20/2025, Vote 5-1; SC 13
March 20, 2025: Sen. Watters, Murphy Floor Amendment # 2025-1151s, AA, VV; 03/20/2025; SJ 8
March 20, 2025: Special Order to Next Session, Without Objection; 03/13/2025; SJ 7
March 20, 2025: Committee Amendment # 2025-0366s, AA, VV; 03/20/2025; SJ 8
March 20, 2025: Committee Report: Ought to Pass with Amendment # 2025-0366s, 03/13/2025, Vote 5-1; SC 12
March 6, 2025: Committee Report: Ought to Pass with Amendment # 2025-0366s, 03/20/2025, Vote 5-1; SC 12
March 6, 2025: Special Order to 03/13/2025, Without Objection, MA; 03/06/2025 SJ 6
March 6, 2025: SB 84 was Removed from the Consent Calendar; 03/06/2025; SJ 6
Feb. 12, 2025: Committee Report: Ought to Pass with Amendment # 2025-0366s, 03/06/2025, Vote 5-1; SC 11
Jan. 23, 2025: Hearing: 01/28/2025, Room 100, SH, 10:15 am; SC 7
Jan. 22, 2025: Introduced 01/09/2025 and Referred to Commerce; SJ 3