Garage Conversion Drawings · St. Petersburg, FL
Permit-Ready Garage Conversion
Drawings for St. Petersburg, FL
Convert your garage into permitted living space or a rental unit. We deliver complete, code-compliant drawing sets ready for St. Petersburg's building department — in 10 business days, starting at $997.
14-day money-back guarantee · 10 business day turnaround
Local Intelligence
What St. Petersburg Homeowners Need to Know Before Submitting
Size & Zoning Rules
Converting your garage to a legal rental unit means the finished space must comply with St. Petersburg's ADU size limits. St. Petersburg's current ADU size cap is 800 sq ft — within the typical range for most floor plan configurations.
St. Petersburg does not impose an owner-occupancy requirement, so you can rent both the main home and any ADU or conversion as investment units.
A fully permitted, code-compliant garage conversion in St. Petersburg can command approximately $1,499/month as a 1-bedroom rental — far more than leaving the space as storage.
Permit Process & Fees
Construction Services and Permitting permit fees for this project type typically range from $2,500 to $10,000 depending on project valuation and scope. Plan check runs approximately 7 weeks — though each correction cycle adds 3–6 weeks, which is why code-compliant drawings matter so much.
Garage conversion drawings submitted to Construction Services and Permitting must include a site plan, floor plans, all four elevations, an electrical plan, and energy compliance documentation — plus stamped structural plans are typically required for converted garages that are detached or require seismic upgrades.
Visit Construction Services and Permitting ↗Construction Cost Context
St. Petersburg's garage conversion construction costs run $200–$330 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 St. Petersburg
Because most of St. Petersburg sits inside the FEMA flood zone and coastal overlay district, your ADU plans need a Coastal Development Permit on top of the standard building permit — and that review alone can tack on 3-6 extra weeks before Construction Services and Permitting even looks at your drawings. If your lot is in a older neighborhood like Old Northeast or Historic Kenwood, expect the city to also check your base flood elevation, which often means raising the ADU's finished floor higher than you'd planned, adding real cost to the foundation. And since Pinellas County bans short-term rentals on these units, plan on a long-term tenant or family use only — banking on Airbnb income here just won't fly.
Expert Verdict — Marcus Reid, Licensed Designer
"In my experience, that $250/sqft and 7-week timeline read like statewide averages rather than St. Pete realities—I'd get a couple of local contractor quotes and call Construction Services and Permitting directly before budgeting, since our coastal overlay triggers a CDP review that routinely adds weeks beyond a standard plan check, especially on incomplete drawing sets. What the data also doesn't show is that with STRs off the table here, your ADU pencils out best as long-term rental or family housing, so plan your financing around that use from day one."
Market Context
St. Petersburg has a median home value of $309,000. Comparable renovation projects in this market typically add 25.0% to resale value.
Neighborhoods in St. Petersburg with the strongest garage conversion and rental-unit potential include Historic Old Northeast, Snell Isle, Crescent Lake, Downtown / Uptown (Grand Central), Historic Kenwood. High single-family density near downtown and waterfront jobs makes it prime for ADUs.
Permit Process
Permit applications are reviewed by the Construction Services and Permitting, with a plan check timeline of approximately 7 weeks. Permit fees in St. Petersburg range from $2,500 to $10,000 depending on project scope. Design review: Yes - in historic districts only.
St. Petersburg falls within Seismic Design Category SDC A, which affects structural requirements for converted garage walls and foundations.
Properties within St. Petersburg's Coastal Overlay Zone require a Coastal Development Permit in addition to standard building permits.
Local Financing Resources
Local Garage Conversion Lenders in St. Petersburg
These lenders offer HELOC, construction, and renovation loans for garage conversion projects in Pinellas County. Compare terms before committing.
Offers construction-to-permanent loans for building projects and also offers HELOCs for renovations; typical member-focused loan sizes and competitive credit-union rates.
Visit Lender ↗Local Pinellas County credit union offering fixed home equity loans and HELOCs with competitive terms suitable for home improvements/ADUs.
Visit Lender ↗Large regional credit union serving St. Petersburg that offers HELOCs to fund home improvements and renovations; often competitive rates and member eligibility rules.
Visit Lender ↗Florida bank offering construction loans (including construction-to-permanent) for building projects; useful for ADU construction with standard construction loan underwriting.
Visit Lender ↗Specialty renovation financing platform that partners with credit unions nationwide to offer renovation/after-renovation-based loans often used for ADU projects.
Visit Lender ↗Build With A Plan is not affiliated with these lenders. Always compare rates and consult a mortgage professional.
Local Build Partners
Vetted Garage Conversion Contractors in St. Petersburg
We draw the plans. These contractors build the conversion. 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.
Drawing Package Details
What's Included in Your St. Petersburg Garage Conversion Package
Transparent Pricing
St. Petersburg Garage Conversion Drawing Packages
One-time fee. No retainer. No hourly billing.
- ✓Site plan
- ✓Floor plans
- ✓All 4 elevations
- ✓Electrical plan
- ✓Title 24 energy form
- ✓PDF + DWG delivery
- ✓10 business day turnaround
- ✓Everything in Starter
- ✓Structural plans (stamped)
- ✓Cross-section details
- ✓Window & door schedules
- ✓Material specifications
- ✓1 round of revisions
- ✓Everything in Standard
- ✓3D rendering
- ✓HOA submission package
- ✓ADU conversion alt plan
- ✓2 rounds of revisions
- ✓Priority 5-day turnaround
After You Order
Your Conversion Drawings in 3 Steps
Submit Your Garage Details
Share your property address, garage dimensions, and intended use (ADU, rental, home office). We confirm your order and assign your project coordinator within 4 business hours.
We Draft Your Drawings
Our team designs your complete conversion drawing set — engineered for St. Petersburg's building department requirements and FL code. Delivered in 10 business days.
Submit to Your Building Dept
Download your complete package and submit to Construction Services and Permitting. We support plan check corrections at no extra charge.
Common Questions
St. Petersburg Garage Conversion FAQs
Is a garage conversion allowed in St. Petersburg? +
Yes — garage conversions are permitted in St. Petersburg. Florida state law allows homeowners to convert an attached or detached garage into habitable living space or an ADU. A building permit and permit-ready drawings are required before work begins.
How much does a garage conversion cost in St. Petersburg? +
Garage conversions in St. Petersburg typically range from $120,000 to $264,000 depending on the existing structure, finish level, and scope of work. This is significantly less than building a new detached ADU. Our drawing package starts at $997 — a fraction of what a local architect would charge for the same permit-ready set.
What drawings are required to permit a garage conversion in St. Petersburg? +
St. Petersburg's building department requires: a site plan showing the converted garage's location on the lot, floor plans with dimensions and room labels, all four exterior elevations, an electrical plan, and energy compliance documentation (Title 24 in California). Our Starter package covers all of these. If the garage is detached or the structure requires seismic upgrades, stamped structural drawings are also required — included in our Premium package.
How long does the permit process take for a garage conversion in St. Petersburg? +
Plan check in St. Petersburg typically takes approximately 7 weeks. Having complete, code-compliant drawings dramatically reduces correction cycles — which each add 3–6 weeks. Our drawings are designed to pass on the first submittal.
Can I convert my garage into a rental unit in St. Petersburg? +
Yes — a permitted garage conversion can function as a standalone rental unit (ADU or JADU depending on size). In California, converted garages under 500 sq ft qualify as Junior ADUs (JADUs), while larger conversions qualify as full ADUs. Both can be rented long-term. Short-term rental rules vary by city — confirm with St. Petersburg's planning department.
Do I need to replace the garage door opening when converting? +
Yes. The garage door must be replaced with an insulated wall with a standard entry door and at least one egress window (minimum 5.7 sq ft clear opening). This is captured in our elevation drawings and flagged in the electrical plan. The new wall must also meet FL energy code requirements, which we handle in the Title 24 compliance documentation.
How much does it cost to get garage conversion drawings in St. Petersburg? +
Our permit-ready garage conversion drawing packages for St. Petersburg start at $997. Local architects typically charge $2,500–$6,000 for the same set. Every package is engineered for FL code compliance and formatted for St. Petersburg's building department. Turnaround is 10 business days with a 14-day money-back guarantee.
Will converting my garage increase my home's value in St. Petersburg? +
A permitted garage conversion in St. Petersburg adds rentable square footage to a home currently valued around $309,000. Converted spaces typically appraise as habitable square footage, increasing the home's value. As an ADU or JADU, the rental income stream is also capitalized into the appraised value — typically at a 5–6% cap rate.
Nearby Cities
Also Available in St. Petersburg
Need full ADU design drawings instead?
Next Steps
Ready to Move Forward With Your St. Petersburg 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 Construction Services and Permitting.
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 Construction Services and Permitting. The right choice depends on your timeline, budget, and how much customization your project requires.