Strict HERS thresholds, aggressive enforcement. Weston is known for thorough plan review and strict enforcement. Projects should budget additional time for permit processing and plan revisions.
Weston Building Code (780 CMR w/ Net-Zero amendments)
Edition: 2024 • Base: IBC 2021 + Specialized Code
Weston Net-Zero Requirement (Homes >4,000 sq ft)
Edition: 2024 • Base: Specialized Opt-in Code
Weston has adopted the Specialized Opt-in Code. All-electric building systems required. HERS rating thresholds apply. Fossil fuel restrictions in effect.
Building permit (ISD), DPW street/utility permits, fire alarm/sprinkler permits, and potentially zoning relief. Major projects may require 8-12 separate permits with 4-8 week processing.
Weston has extended review times. Residential: 3-6 weeks. Commercial: 6-12 weeks. Zoning relief adds 8-16 weeks.
Building permit fees based on project valuation (typically $15-25 per $1,000). Additional fees for DPW, fire, and specialty permits. Total permit costs: $500-$5,000+ for residential, $5,000-$50,000+ for commercial.
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