Building height limits in Napa are set by zoning district under Napa Municipal Code Title 17, with residential heights established in the property development standards table of NMC Β§17.08.030 for the RS, RI, RT, and RM districts, and commercial / industrial / mixed-use heights set in their respective Title 17 chapters. The California Building Code (Title 24 Part 2), adopted through NMC Title 15, imposes a separate maximum height/area based on construction type and occupancy. Variances and adjustments are processed through Napa Community Development.
Napa sets maximum building height district by district. (1) Residential: NMC Chapter 17.08 establishes the RS (Residential Single), RI (Single-Family Infill), RT (Traditional Residential Infill), and RM (Multiple-Family Residential) districts; the property development standards table in Β§17.08.030 lists the maximum building height for each. Single-family RS and RI districts cap principal-building height at typical low-density residential limits; the RT historic-neighborhood district uses context-sensitive standards; the RM district allows taller multi-story buildings to support apartments and condominiums. (2) Commercial, industrial, and mixed-use: separate chapters in Title 17 set higher height limits for downtown, mixed-use, commercial, and industrial districts consistent with Napa's General Plan and Downtown Specific Plan. (3) Site and use regulations: NMC Chapter 17.52 (Site and Use Regulations) supplements bulk standards with situational rules and exceptions (rooftop mechanical, chimneys, etc.). (4) State Building Code overlay: California Building Code (Title 24 Part 2), adopted through Napa Municipal Code Title 15, adds height-and-area limits based on construction type and occupancy classification β the more restrictive of the zoning cap and the CBC cap controls. (5) Hazard overlays: portions of Napa are in CAL FIRE State Responsibility Area / Local Responsibility Area Fire Hazard Severity Zones (relevant to the 2017 Atlas Fire / Tubbs Fire / 2020 Glass Fire regional context); construction in those areas is subject to California Building Code Chapter 7A wildland-urban-interface standards on top of zoning. Napa is also subject to FEMA flood-zone construction standards along the Napa River. (6) Variances: height variances and adjustments go through Napa Community Development under the Title 17 variance and adjustment procedures.
Building above the height limit set in the zoning district's development standards table is a Title 17 zoning violation: Community Development will not issue a building permit or certificate of occupancy until the structure is brought into compliance. Code Enforcement can issue notices of violation and administrative citations with daily fines. Building Code height violations under the California Building Code are enforceable separately with stop-work orders.
Napa, CA
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See how Napa's structure height limits rules stack up against other locations.
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