New Home Construction in Union City, CA
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Building New in Union City
New homes in Union City are rebuilds on existing lots or homes in the hillside area east of Mission Boulevard. Axiom Renovation (CA Lic. #1105006) builds custom homes and prepares the full Planning and Building submittals.
Construction in Progress
Ask us about recent new-home and rebuild projects during your consultation.
New-Home Submittal Checklist
- Planning Division approval letter with annotated Conditions of Approval.
- 4 plan sets, soils or geology report as applicable, and a property survey.
- Construction and demolition waste management plan.
- Title 24 and CALGreen documentation.
- New Haven Unified school fee receipt before permit issuance.
- Union Sanitary District permit and Alameda County Water District service.
- Grading permit from Public Works where needed.
Fire sprinklers (Municipal Code 15.20.100): required for new construction, and for additions when the existing area (not counting the garage) grows by more than 50% or the total area including the garage exceeds 2,500 sq ft. Fire protection is provided by the Alameda County Fire Department.
Hillside Lots and the Hayward Fault
East of Mission Boulevard, the Hillside Area Plan and Hillside Combining District govern development, which is limited to the area between Mission Boulevard and the Peavine and prohibited on natural slopes over 40%. The Hayward Fault runs through the hillside area near Mission Boulevard, so earthquake fault zone mapping and geotechnical work come first.
34009 Alvarado-Niles Road, Union City, CA 94587 · City Hall (510) 471-3232
Building Division (510) 675-5313 · Planning (510) 675-5379
Building counter Monday to Thursday 9 a.m. to 5 p.m. and alternate Fridays 9 a.m. to noon. Planning counter Monday to Thursday 9 a.m. to 2 p.m., with appointments given priority. Plan submittals and resubmittals are taken at the counter.
Inspections are requested through the Building Inspection Hotline, (510) 487-0711. The City caps the number of inspections per day, so call early.
Explore More
Other Union City services: ADUs · Bathrooms · Kitchens · Additions · Union City overview
Same service nearby: Fremont · Newark · Alameda County
See our custom home builder page.
Union City New Home Construction FAQ
Can I build on a hillside in Union City?
In the Hillside Area, development is limited to the area between Mission Boulevard and the Peavine and not allowed on natural slopes over 40%.
Are fire sprinklers required?
Yes, for all new construction.
What comes first, Planning or Building?
Planning. New homes need a Planning approval letter with annotated Conditions of Approval before the building submittal.
Who provides utilities?
Alameda County Water District for water and Union Sanitary District for sewer.