Sunnyvale · new construction permits
Sunnyvale new construction permits.
What it actually takes to permit a ground-up build in Sunnyvale: jurisdiction, plan check, inspections, and the local overlays that change the path. Every link below points at an official City of Sunnyvale Community Development Department — Building Safety Division resource.
Quick answer
New single-family permits in Sunnyvale are issued by City of Sunnyvale Community Development Department — Building Safety Division; California Title 24 Part 6 and CALGreen Part 11 apply statewide on top of any Sunnyvale reach-code amendments.
Homeowner & investor takeaway
Treat the project as all-electric and confirm Heritage District status before scoping. The daylight-plane and second-story area cap together dictate roof geometry on most R-1 rebuilds.
Local jurisdiction.
Permits are issued by City of Sunnyvale Community Development Department — Building Safety Division (Santa Clara County). Use the official portals below — do not rely on third-party permit aggregators.
- Building department: City of Sunnyvale Community Development Department — Building Safety Division
- Permit portal: City of Sunnyvale Community Development Department — Building Safety Division
- Planning: City of Sunnyvale Community Development Department — Building Safety Division
- Zoning lookup: City of Sunnyvale Community Development Department — Building Safety Division
- Municipal code: City of Sunnyvale Community Development Department — Building Safety Division
Permit types typically involved.
Building permit
Required for a new dwelling unit, including structural, MEP, and envelope review.
Grading / drainage
Grading thresholds and Low Impact Development (LID) stormwater requirements apply per City of Sunnyvale Community Development Department — Building Safety Division; sloped parcels require geotech and an erosion-control plan.
Sewer / utility
Municipal sewer service in developed Sunnyvale parcels; verify lateral condition and any point-of-sale sewer compliance requirement before scoping. PG&E electric/gas; City of Sunnyvale water (Hetch Hetchy + local supply) and sewer; coordinate service upsize early.
Electrical / mechanical / plumbing
Often pulled with the building permit; some jurisdictions require separate sub-permits per trade.
Title 24 compliance
California Energy Commission Climate Zone 4. New single-family homes must comply with the current Title 24 Part 6 envelope, HVAC, hot-water, and rooftop solar-PV requirements.
CALGreen
CALGreen Part 11 mandatory measures (≥65% C&D waste diversion, water-efficient fixtures, indoor-air-quality measures) apply to all new homes. Sunnyvale has adopted an all-electric reach code for new construction with limited exceptions; confirm scope at intake.
Plan check process.
Plan check focuses on Title 24, the city's all-electric reach code, and structural lateral design; comment cycles typical for two-story projects.
Entitlement & planning review.
Most R-1 SFRs are ministerial; Heritage District and other historic-resource overlays trigger design review and demolition findings.
Inspections.
City of Sunnyvale Community Development Department — Building Safety Division schedules inspections through its permit portal; foundation, framing, rough trades, insulation, drywall, and final are the standard hold points for new SFRs in Sunnyvale.
Local overlays & constraints.
Sunnyvale uses R-0, R-1, R-1.5, R-2, R-3 and R-4 districts plus the Downtown Specific Plan; R-1 single-family rules govern FAR, daylight plane, and second-story area.
Flood. Limited FEMA SFHA — primarily along Calabazas Creek and bayside areas; verify on the FEMA MSC.
Seismic. Regional Hayward, Calaveras, and San Andreas systems; CGS liquefaction zones touch parts of the city near the Bay.
Common delay drivers.
Risk 1
Heritage demolition findings delaying entitlement
Risk 2
Daylight-plane recalculation shrinking second story
Risk 3
All-electric scope late realization
Prepare before submittal.
- Confirm zoning, setbacks, height, and FAR for the parcel.
- Order soils / geotech early — many overlays require it before plan check.
- Complete Title 24 energy modeling and confirm CALGreen targets.
- Have a clear utility upgrade plan (sewer lateral, panel, gas) documented.
- Pre-assemble any overlay-specific studies (hillside, coastal, fire, flood).
This page is general information, not legal advice. Permit requirements change. Confirm the current process directly with City of Sunnyvale Community Development Department — Building Safety Division.
Questions.
- Who issues new-home permits in Sunnyvale?
- The City of Sunnyvale Community Development Department — Building Safety Division issues permits; Planning handles zoning, the Heritage District, and design review.
- Does Sunnyvale require all-electric new construction?
- Sunnyvale has adopted an all-electric reach code with limited exceptions; verify current scope at intake.
- What is the Heritage District?
- An overlay across the older central neighborhoods that adds design review, demolition findings, and additional procedural review on visible alterations or rebuilds.
- Are my lots in a FEMA SFHA?
- Most flatland parcels are outside SFHA; verify on the FEMA MSC for any creek-adjacent or bayside lot.
- Does CALGreen apply?
- Yes, statewide. Sunnyvale's reach code adds electrification requirements on top.
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