Floor Plan Drafting · Union City, CA
Professional Floor Plan Drafting
for Union City, CA Homes
As-built drawings, permit-ready floor plans, and renovation layouts for Union City homeowners, investors, and contractors. Accurate CAD drawings with a 14-day money-back guarantee.
14-day money-back guarantee · permit-ready delivery
Common Uses in Union City
Local Intelligence
What Union City Homeowners Need to Know Before Submitting
Size & Zoning Rules
Accurate floor plans are the foundation of any ADU, garage conversion, or addition permit in Union City — Development Services will not accept a permit application without them. Union City's current ADU size cap is 1,200 sq ft — generous enough to accommodate most project types.
Union City does not impose an owner-occupancy requirement, so you can rent both the main home and any ADU or conversion as investment units.
Homeowners in Union City who document and legitimize their square footage correctly are positioning a home in a rental market where 1-bedroom units average approximately $2,488/month.
Permit Process & Fees
Development Services permit fees for this project type typically range from $3,000 to $20,000 depending on project valuation and scope. Plan check runs approximately 8.5 weeks — though each correction cycle adds 3–6 weeks, which is why code-compliant drawings matter so much.
Floor plans submitted to Development Services as part of a permit application must include a site plan, floor plans, all four elevations, an electrical plan, and energy compliance documentation — plus if structural changes are involved, a licensed engineer must stamp the structural drawings.
Visit Development Services ↗Construction Cost Context
Union City's adu / renovation construction costs run $180–$470 per square foot — a wide range driven by labor markets, local code complexity, and finish level. Our drawings are priced at a fraction of what a full-service architect would charge to produce the same permit set.
⚠ Common Pitfall in Union City
If your property is in a neighborhood governed by an HOA, Union City requires you to present written HOA approval with your ADU application, which can delay the process significantly due to slow response times or additional architectural committee reviews. Additionally, properties relying on older sewer lines often face mandatory capacity upgrades, with the city requiring a video inspection and potential replacement, adding $5,000–$15,000 to your project costs.
Expert Verdict — Marcus Reid, Licensed Designer
"In my experience with Union City submittals, that 8.5-week plan check figure is optimistic for a first pass—most homeowners see at least one round of corrections that tacks on another month, especially if the drawing set isn't fully dialed in. Also, since the cost-per-sqft number here is a state-level estimate rather than a verified local figure, I'd get two or three actual contractor quotes and call Development Services directly before you lock in a budget or timeline."
Market Context
Union City has a median home value of $1,100,000. Comparable renovation projects in this market typically add 35% to resale value.
Neighborhoods in Union City with the strongest renovation and resale value potential include Downtown Union City, Decoto, Decoto Rd / Alvarado Niles Rd, Union City Blvd / Delores Dr, Begonia St / Clover St. Proximity to Downtown Union City BART station and central employment centers creates strong rental demand from commuters.
Permit Process
Permit applications are reviewed by the Development Services, with a plan check timeline of approximately 8.5 weeks. Permit fees in Union City range from $3,000 to $20,000 depending on project scope.
Union City falls within Seismic Design Category D (D0/D1 per ASCE 7-16/7-22), which affects structural requirements for any new addition tying into the existing structure.
Local Financing Resources
Local Floor Plan Lenders in Union City
These lenders offer HELOC and renovation financing that often requires accurate as-built drawings in Alameda County. Compare terms before committing.
Dedicated short-term 'ADU HELOC' for California primary residences; $10,000-$400,000 line, 2-year interest-only then 20-year repayment, starting at 8.25% APR, LTV up to 125% of current / 90% post-construction value.
Visit Lender ↗Bay Area ADU loans with Home Equity Credit Line and Fixed-Rate Term Loan options; 6.75%-8.75% indexed APR, borrow up to 90% of home's future value, branches in Dublin and Milpitas near Union City.
Visit Lender ↗'HomeFast ADU Loan' purpose-built for California ADU construction; $25,000-$500,000, 25-year term with 12-month interest-only intro at 5.99% APR then 7.00% APR.
Visit Lender ↗Northern California / Bay Area credit union with dedicated ADU construction loans that qualify borrowers on the home's post-completion future value, balloon due upon sale/refi.
Visit Lender ↗Specialty ADU fintech licensed in CA (NMLS #2412747); arranges ADU renovation loans through partner credit unions, borrowing against the home's post-construction value.
Visit Lender ↗Build With A Plan is not affiliated with these lenders. Always compare rates and consult a mortgage professional.
Local Build Partners
Vetted Local Contractors in Union City
Need a contractor once your drawings are ready? These are vetted local options. Independent — no referral fees paid or received.
Build With A Plan provides drawings only. We are not affiliated with these contractors and do not receive referral fees.
Free — No Obligation
Tell Us What You Need Drawn
As-built documentation, permit plans, or a renovation layout — send us the property and what it’s for, and we’ll confirm scope and turnaround free before any commitment.
- ✓Confirmation of exactly which drawings your permit needs
- ✓Verified dimensions and square footage
- ✓Door, window, and fixture schedules
- ✓Turnaround confirmed up front — 10 business days standard
- ✓A straight answer within 48 hours
Get My Project Reviewed — Free
Takes 60 seconds. We'll deliver your personalized report within 48 hours.
Request Received
Your feasibility report is being prepared. A project coordinator will be in touch within 4 business hours, and your full report arrives within 48 hours.
What We Deliver
What's Included in Your Union City Floor Plan Package
What You Get
Union City Floor Plan Packages
One-time fee, no retainer, no hourly billing — your exact scope and price confirmed on a free call.
- ✓As-built floor plans (all levels)
- ✓Verified square footage
- ✓Door & window schedule
- ✓Room labels and dimensions
- ✓PDF + DWG delivery
- ✓10 business day turnaround
- ✓Everything in Starter
- ✓Electrical layout documentation
- ✓Plumbing fixture locations
- ✓Site plan with setbacks
- ✓Code notations for permit submittal
- ✓1 round of revisions
- ✓Everything in Standard
- ✓Proposed renovation overlay
- ✓3D massing model
- ✓HOA submission package
- ✓Title 24 energy compliance
- ✓2 rounds of revisions
- ✓Priority 5-day turnaround
How It Works
Your Floor Plans in 3 Steps
Share Your Home Details
Provide your property address, room measurements, and photos. We'll confirm your order and assign a drafting coordinator within 4 business hours.
We Draft Your Plans
Our CAD team converts your measurements into precise, scaled floor plans — formatted for Union City's building department and CA code standards. Delivered in 10 business days.
Download and Use
Receive your drawings in PDF and DWG format — ready for permit submittal, contractor bidding, listing agents, appraisers, or HOA submission.
Common Questions
Union City Floor Plan Drafting FAQs
When do I need professionally drafted floor plans in Union City? +
You need accurate floor plans for: permit applications (required by Union City's building department for any structural work), refinancing or home equity loans, selling your home (accurate square footage documentation), renovation contractor bidding, HOA design review submissions, and insurance claims. Our as-built drawings capture your home's exact current dimensions.
What is an as-built floor plan and why do I need one in Union City? +
An as-built floor plan documents your home as it currently exists — including all room dimensions, door and window locations, wall thicknesses, and square footage. These are required when the original permit drawings are unavailable or the home was modified without permits. Union City's building department requires accurate as-builts when you apply for renovation or addition permits on older homes.
How much does floor plan drafting cost in Union City? +
Our floor plan drafting packages for Union City cover measured floor plans for all levels, room labels, door and window schedules, and verified square footage. Local drafting services typically charge $1,500–$4,000 for comparable work. Contact us for current pricing and to discuss your project. 14-day money-back guarantee.
How do you create floor plans remotely for my Union City home? +
You provide basic measurements (room dimensions, door/window sizes) and photos of each room. Our drafting team converts these into accurate CAD drawings with precise dimensions, wall thicknesses, and notations. For permit-grade as-built drawings, we may request additional measurements or a site visit from a local partner. We serve all Union City neighborhoods remotely.
What format are the floor plan drawings delivered in? +
We deliver drawings in PDF (for printing and permit submission) and DWG/DXF (AutoCAD-compatible format for contractors, engineers, and architects to work from). All drawings are formatted to Union City building department standards and include title block, scale, and code notations required for permit submission.
Can you draft floor plans for a rental property or multi-unit building in Union City? +
Yes — we draft floor plans for single-family homes, duplexes, triplexes, ADUs, condos, and small commercial properties in Union City. Multi-unit buildings are priced based on the total number of units and floors. Contact us for a custom quote if your property has more than 4 units.
Will accurate floor plans increase my home's value in Union City? +
In Union City, where median home values are around $1,100,000, inaccurate or missing square footage records can suppress list price and appraisal value. Professional as-built drawings establish defensible square footage for appraisers and buyers. Unpermitted additions documented and legitimized through permit drawings can recover thousands in appraised value.
Do I need floor plans to get an ADU or addition permit in Union City? +
Yes — Union City's building department requires accurate floor plans as part of any ADU, garage conversion, or addition permit application. Our packages combine floor plan drafting with the full permit-ready drawing set (site plan, elevations, electrical, Title 24) needed for plan check submittal. If you only need the floor plans themselves, our Starter package covers that.
Can you draft floor plans from old blueprints or photos in Union City? +
Yes — we can redraft from original blueprints, scans of old permit sets, hand-drawn sketches, or room photos combined with your measurements. We regularize old drawings to current CAD standards and update them to reflect any modifications made since original construction. This is a common service for Union City homes built before the 1990s.
Also Available in Union City
Planning to build an ADU? See our ADU design service.
Next Steps
Ready to Move Forward With Your Union City ADU?
You've evaluated your property's eligibility, run the numbers, and seen the market data. The next step is getting permit-ready architectural drawings to submit to Development Services.
Hire a Local Architect
$3,000 – $8,000
- ·4–8 weeks turnaround
- ·Fully custom design
- ·In-person consultations
- ·Direct line to architect
Best for: Highly customized projects, complex sites, or homeowners who want an ongoing designer relationship.
Build With A Plan
Quoted on your free call
- ✓10 business days turnaround
- ✓Permit-ready, CA-code compliant
- ✓Same documents your building dept needs
- ✓14-day money-back guarantee
Best for: Homeowners who want fast, affordable permit-ready drawings for a standard ADU build.
Both options produce permit-ready architectural drawings accepted by Development Services. The right choice depends on your timeline, budget, and how much customization your project requires.