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Hillsborough County, NH

Name: Building Permits — Hillsborough County, NH
License: https://creativecommons.org/publicdomain/zero/1.0/

Residential building permits · 2015–2025

Housing units authorized (2025): 632
Construction valuation (2025): $218,072,925
By structure type (2025): 1-unit 380 · 2-unit 34 · 3-4 30 · 5+ 188

Units authorized by year

Year	Units	Valuation
2025	632	$218,072,925
2024	872	$245,557,078
2023	1,382	$342,320,864
2022	844	$231,732,435
2021	1,342	$294,880,709
2020	868	$181,798,696
2019	1,252	$248,380,986
2018	1,406	$207,435,806
2017	1,033	$184,018,568
2016	1,097	$188,178,163
2015	921	$171,801,097

The Census Building Permits Survey counts new privately-owned housing units authorized by building permits — a leading indicator of housing supply. "1-unit" is single-family; "5+ units" is larger multifamily. Figures are imputation-adjusted to cover permit offices that did not report.

Source: Census Building Permits Survey. License: CC0 1.0.