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NM · County

Union County, NM.

Union County is in NM (IECC zone 3B, design wind 90 mph).

Indexed WUI
Adopted edition

IRC 2021

Inherits from NM state floor.

Design wind speed

90 mph

ASCE 7 Risk Cat II, 3-second gust at 33 ft. Drives fastener spacing, hold-downs, and opening protection.

Climate zone (IECC)

3B

Drives R-value, fenestration U-factor, and air-leakage envelope rules.

Special zones
  • HVHZ
  • WBDR
  • WUI
  • FEMA SFHA possible
Permit office

Union County County Building Department

NULL

Common amendments + overlays

What's specific to this county.

  • §01 WUI overlay — fire-resistant exterior + defensible space requirements.

Working in Union County?

Pull an address-level code packet for any property in Union County. SkyCanvass resolves the parcel, looks up the adopted edition + the Union County-specific amendments listed above, and emits a cited packet ready for permit submittal.

See the New Mexico state overview for the broader context, or browse the state directory.

Pull a Union County code packet.

Free to start — property lookups, state code access, the hail map, and your first storm report on us. No credit card required to look up an address.