Floor Plan Drafting · Key West, FL
Professional Floor Plan Drafting
for Key West, FL Homes
As-built drawings, permit-ready floor plans, and renovation layouts for Key West 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 Key West
Local Intelligence
What Key West Homeowners Need to Know Before Submitting
Size & Zoning Rules
Accurate floor plans are the foundation of any ADU, garage conversion, or addition permit in Key West — Building Department will not accept a permit application without them. Key West's current ADU size cap is 1,000 sq ft — within the typical range for most floor plan configurations.
Key West 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 Key West who document and legitimize their square footage correctly are positioning a home in a rental market where 1-bedroom units average approximately $2,800/month.
Permit Process & Fees
Building Department permit fees for this project type typically range from $3,500 to $17,500 depending on project valuation and scope.
Floor plans submitted to Building 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 Building Department ↗Construction Cost Context
Key West's adu / renovation construction costs run $315–$525 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 Key West
Because Key West sits inside the state's Coastal Construction Control Line, most ADU projects need a separate Coastal Development Permit on top of the standard building permit — expect this review to tack on several extra weeks and require elevation certificates showing your unit meets flood-vent and base flood elevation rules. Old Town and Historic District lots also trigger a mandatory HARC (Historic Architectural Review Commission) review before you can even get in line at the Building Department, and HARC often pushes back on roof pitch, siding materials, and setbacks that clash with the neighboring conch houses. On top of that, many Key West lots run on shared or undersized water and sewer laterals from the 1950s, so FKAA (Florida Keys Aqueduct Authority) may require a capacity check or a line upgrade before they'll sign off on a new unit's utility connection.
Expert Verdict — Marcus Reid, Licensed Designer
"In my experience, both the missing permit timeline and the blank per-square-foot cost here are really just placeholders for a Key West state-level estimate, so please get actual local contractor quotes and call the Building Department directly before budgeting anything — and don't forget that with coastal overlay in play, the CDP review alone can add weeks or months beyond whatever plan check window you're quoted."
Market Context
Key West has a median home value of $900,000. Comparable renovation projects in this market typically add 25% to resale value.
Neighborhoods in Key West with the strongest renovation and resale value potential include New Town, Midtown, The Meadows, Casa Marina, Old Town. Largest concentration of single-family homes with bigger lots, plus proximity to Stock Island and the College of the Florida Keys creates strong year-round rental demand from students and working families.
Permit Process
Permit applications are reviewed by the Building Department. Permit fees in Key West range from $3,500 to $17,500 depending on project scope. Design review: Yes - in historic districts only.
Key West falls within Seismic Design Category A, which affects structural requirements for any new addition tying into the existing structure.
Properties within Key West's Coastal Overlay Zone require a Coastal Development Permit in addition to standard building permits.
Local Financing Resources
Local Floor Plan Lenders in Key West
These lenders offer HELOC and renovation financing that often requires accurate as-built drawings in Monroe County. Compare terms before committing.
Local Florida Keys credit union offering HELOCs with competitive rates for members in Key West, FL 33040.
Visit Lender ↗Local Florida Keys bank offering residential construction financing with 15 and 30-year fixed rate and adjustable rate mortgage options.
Visit Lender ↗Local Key West mortgage specialist offering short-term construction loans for new builds and real estate improvements.
Visit Lender ↗Regional Florida credit union offering construction-to-permanent loans with one-time closing and financing across Florida.
Visit Lender ↗Specialty ADU lender using after-renovation value (ARV) to maximize borrowing power for ADU projects nationwide.
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 Key West
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 Key West Floor Plan Package
What You Get
Key West 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 Key West's building department and FL 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
Key West Floor Plan Drafting FAQs
When do I need professionally drafted floor plans in Key West? +
You need accurate floor plans for: permit applications (required by Key West'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 Key West? +
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. Key West'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 Key West? +
Our floor plan drafting packages for Key West 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 Key West 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 Key West 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 Key West 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 Key West? +
Yes — we draft floor plans for single-family homes, duplexes, triplexes, ADUs, condos, and small commercial properties in Key West. 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 Key West? +
In Key West, where median home values are around $900,000, 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 Key West? +
Yes — Key West'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 Key West? +
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 Key West homes built before the 1990s.
Nearby Cities
Also Available in Key West
Planning to build an ADU? See our ADU design service.
Next Steps
Ready to Move Forward With Your Key West 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 Building 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
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 Building Department. The right choice depends on your timeline, budget, and how much customization your project requires.