Zoning · New Hampshire
Zoning in New Hampshire
Zoning (Municipal planning departments) data for ZIP codes in New Hampshire. Pick a ZIP below to dive into the zoning summary.
Last verified 2026-05-13 · methodology
What lands here
Pages translate the city's zoning code into plain English for the ZIP's dominant classifications, with a link to the planning department's official map.
Source & refresh
Municipal planning departments. Refreshed annual plus ad-hoc rezonings. Primary source →
New Hampshire top concern
Radon, lead in older housing
New Hampshire is uniformly Zone 1 radon. Older Manchester + Nashua + Portsmouth housing stock carries lead-service-line risk. Coastal flood zones limited to small NH coastline.
See New Hampshire state page for the full state-level rollup across all 12 dimensions.
Read more on zoning
Editorial deep-dives explaining the source data, its limits, and how to read it.
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Plain-English guide to property tax millage rates, assessment ratios, and homestead exemptions. How county assessors compute your annual property tax bill.
Deed records — what they show and what they don't
Plain-English guide to county deed records: what gets filed, how to look up a property's history, and why zipradar aggregates only counts (never owner names).
Zoning codes — what R-1, C-2, M-1, MU mean and why your house is one
Plain-English guide to common US zoning codes: R-1 / R-2 / C-1 / C-2 / M-1 / MU. Why zoning matters for your home, your neighbors, and what you can build.
Homestead exemption — state-by-state property tax savings
Every US state offers a homestead exemption that reduces property tax for owner-occupied homes. State-by-state amounts and how to file.