Land — Northeast — NH
Water rights, rainwater law, cottage food rules, right-to-farm protections, livestock zoning, and growing conditions for New Hampshire landowners and buyers.
Land law varies by county, municipality, and HOA. Verify all information with your county planning department, state water agency, and a licensed attorney before any land purchase or development decision.
Water law
Riparian doctrine. Reasonable use standard. DES regulates significant withdrawals.
No state restrictions. Collection permitted without limit.
Land use and production law
New Hampshire Homestead Food Operations Law: no gross sales cap; direct consumer sales; label required. Verify with NH DHHS.
New Hampshire Right to Farm Act (RSA §432:33) protects established agricultural operations.
Most zoning is at the town level. Rural and agricultural-zoned towns generally permissive. Suburban towns near Boston metro have increasing restrictions.
Growing conditions
Hardiness zones
3b (Great North Woods) – 6a (Seacoast)
Last frost
May 15 (north) – May 1 (Seacoast)
First frost
Sep 15 (north) – Oct 15 (south/Seacoast)
Free soil testing
UNH Cooperative Extension — click to visit
Soil notes
Glacially derived — thin, rocky, and acidic. Most NH soils pH 4.5–5.5 and need regular lime applications. Sandy loam soils in river valleys are more productive.