Floor Plan Drafting · San Diego, CA
Professional Floor Plan Drafting
for San Diego, CA Homes
As-built drawings, permit-ready floor plans, and renovation layouts for San Diego homeowners, investors, and contractors. Accurate CAD drawings in 10 business days, starting at $997.
14-day money-back guarantee · 10 business day turnaround
Common Uses in San Diego
Local Intelligence
What San Diego Homeowners Need to Know Before Submitting
Size & Zoning Rules
Accurate floor plans are the foundation of any ADU, garage conversion, or addition permit in San Diego — Development Services Department will not accept a permit application without them. San Diego's current ADU size cap is 1,200 sq ft — generous enough to accommodate most project types.
San Diego 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 San Diego who document and legitimize their square footage correctly are positioning a home in a rental market where 1-bedroom units average approximately $2,195/month.
Permit Process & Fees
Development Services Department permit fees for this project type typically range from $3,500 to $12,000 depending on project valuation and scope. Plan check runs approximately 8 weeks — though each correction cycle adds 3–6 weeks, which is why code-compliant drawings matter so much.
Floor plans submitted to Development Services Department 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 Department ↗Construction Cost Context
San Diego's adu / renovation construction costs run $260–$570 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 San Diego
If your lot sits within the Coastal Zone (common in neighborhoods like La Jolla, Point Loma, or Pacific Beach), you'll need a Coastal Development Permit on top of your standard ADU approval, which can tack on 3-6 months since it often requires separate staff review or even a public hearing depending on your exact location. San Diego's Development Services Department also flags older homes in these coastal areas for sewer lateral inspections, and if your clay pipe is cracked or undersized, the city can require a full replacement before signing off on the ADU — a surprise cost that can run $8,000-$15,000. Because the county sits in Seismic Zone D, expect your structural engineer to spend extra time on foundation and shear wall calculations, especially if you're building a detached unit on a sloped lot near Mission Hills or Bankers Hill.
Expert Verdict — Marcus Reid, Licensed Designer
"In my experience, that 8-week timeline and $375/sqft figure are San Diego state-level estimates, not gospel — I'd get at least two local contractor quotes and call the Development Services Department directly before penciling in a budget or start date, especially since coastal overlay properties still need to clear the CDP process, which routinely adds several months on top of standard plan check."
Market Context
San Diego has a median home value of $805,000. Comparable renovation projects in this market typically add 28.0% to resale value.
Neighborhoods in San Diego with the strongest renovation and resale value potential include Clairemont, College Area (SDSU), City Heights, North Park, Mira Mesa. Many mid-century ranch homes on large lots and the city-leading ADU permit activity make it ideal for detached ADUs.
Permit Process
Permit applications are reviewed by the Development Services Department, with a plan check timeline of approximately 8 weeks. Permit fees in San Diego range from $3,500 to $12,000 depending on project scope. Design review: Yes - in historic districts and in the Coastal Overlay Zone (CDP or historic-resource review may be required).
San Diego falls within Seismic Design Category D, which affects structural requirements for any new addition tying into the existing structure.
Properties within San Diego's Coastal Overlay Zone require a Coastal Development Permit in addition to standard building permits.
Local Financing Resources
Local Floor Plan Lenders in San Diego
These lenders offer HELOC and renovation financing that often requires accurate as-built drawings in San Diego County. Compare terms before committing.
Offers fixed-rate home equity loans and variable-rate HELOCs to members in San Diego; typical terms include 10- or 15-year fixed options and a HELOC draw period.
Visit Lender ↗Local San Diego credit union HELOC product for tapping home equity (competitive local rates; often used for renovations/ADUs).
Visit Lender ↗Regional credit union with HELOCs (10-year draw, interest-only option then 15-year repayment) — commonly used to finance renovation or ADU builds.
Visit Lender ↗San Diego-headquartered mortgage lender offering rehab/renovation loans (construction and renovation financing suitable for ADU projects).
Visit Lender ↗Specialty renovation/ADU financing platform that partners with credit unions and lenders nationwide to offer loans that underwrite to after-renovation value — suitable for ADU projects in California.
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 San Diego
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.
What We Deliver
What's Included in Your San Diego Floor Plan Package
Transparent Pricing
San Diego Floor Plan Packages
One-time fee. No retainer. No hourly billing.
- ✓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 San Diego'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
San Diego Floor Plan Drafting FAQs
When do I need professionally drafted floor plans in San Diego? +
You need accurate floor plans for: permit applications (required by San Diego'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 San Diego? +
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. San Diego'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 San Diego? +
Our floor plan drafting packages for San Diego start at $997 for a standard residential home. This includes 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 the same work. We deliver within 10 business days with a 14-day money-back guarantee.
How do you create floor plans remotely for my San Diego 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 San Diego 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 San Diego 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 San Diego? +
Yes — we draft floor plans for single-family homes, duplexes, triplexes, ADUs, condos, and small commercial properties in San Diego. 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 San Diego? +
In San Diego, where median home values are around $805,000, 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 San Diego? +
Yes — San Diego'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 San Diego? +
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 San Diego homes built before the 1990s.
Nearby Cities
Also Available in San Diego
Planning to build an ADU? See our ADU design service.
Next Steps
Ready to Move Forward With Your San Diego 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 Department.
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
$997 – $2,997
- ✓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 Department. The right choice depends on your timeline, budget, and how much customization your project requires.