Garage Conversion Drawings · Southlake, TX
Permit-Ready Garage Conversion
Drawings for Southlake, TX
Convert your garage into permitted living space or a rental unit. We deliver complete,
code-compliant drawing sets ready for Southlake's building department — 14-day money-back guarantee.
14-day money-back guarantee · 10 business day turnaround
Local Intelligence
What Southlake Homeowners Need to Know Before Submitting
Size & Zoning Rules
Converting your garage to a legal rental unit means the finished space must comply with Southlake's ADU size limits. Southlake's current ADU size cap is 800 sq ft — within the typical range for most floor plan configurations.
Southlake currently requires owner-occupancy on the primary parcel — meaning one of the units (the main home or the ADU/conversion) must be your primary residence.
A fully permitted, code-compliant garage conversion in Southlake can command approximately $1,399/month as a 1-bedroom rental — far more than leaving the space as storage.
Permit Process & Fees
Planning & Development Services permit fees for this project type typically range from $750 to $1,250 depending on project valuation and scope.
Garage conversion drawings submitted to Planning & Development Services 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 Planning & Development Services ↗⚠ Common Pitfall in Southlake
Most Southlake ADU projects get tripped up by the city's strict lot coverage and masonry ordinance long before anyone looks at your floor plan — homes here typically require 80% masonry on exterior walls, which can push your build cost well past that $350/sqft average if your ADU doesn't match the main house's stone or brick. Because Southlake bans short-term rentals outright, plan reviewers also check your application for language suggesting Airbnb-style use, so your permit narrative and site plan need to clearly state long-term family or guest use to avoid a rejection loop. On top of that, since fee data and review timelines vary wildly depending on whether staff routes your project as an "Addition" or standalone structure, it's worth calling Planning & Development Services directly before submittal to confirm which track you're on — guessing wrong can cost you weeks.
Expert Verdict — Marcus Reid, Licensed Designer
"In my experience, both that permit timeline and the cost-per-square-foot figure you're seeing here are unverified state-level estimates, not Southlake-specific numbers — I'd call Planning & Development Services directly and get two or three local contractor quotes before you build a budget or schedule around them. With HOA coverage sitting at 55% in this area, don't overlook that an approval from the city doesn't mean your HOA architectural committee will sign off nearly as fast."
Market Context
Southlake has a median home value of $1,000,000. Comparable renovation projects in this market typically add 25% to resale value.
Neighborhoods in Southlake with the strongest garage conversion and rental-unit potential include Southlake Town Square Area, Lake Woodlands, The Lakes, Southlake Estates, Hidden Lake. Highest rental demand due to immediate proximity to the city's primary dining, shopping, and employment hub.
Permit Process
Permit applications are reviewed by the Planning & Development Services. Permit fees in Southlake range from $750 to $1,250 depending on project scope.
Southlake falls within Seismic Design Category A, which affects structural requirements for converted garage walls and foundations.
Local Financing Resources
Local Garage Conversion Lenders in Southlake
These lenders offer HELOC, construction, and renovation loans for garage conversion projects in Tarrant County. Compare terms before committing.
Tarrant County-based credit union offering interim construction and home equity loans up to 80% of home value, terms up to 30 years.
Visit Lender ↗DFW-area credit union offering Home Improvement Loans from $10,000 to $100,000 with up to 95% FMV for renovations.
Visit Lender ↗Neighborhood Credit Union offers home equity and construction loans with rates as low as 4.54% APR and max 80% CLTV.
Visit Lender ↗Texas credit union offering HELOCs from $20,000 up to $750,000 with max 80% LTV, expert in Texas HELOC laws.
Visit Lender ↗Specialty ADU lender offering loans from $25k to $500k based on the future value of the home after renovation, available in Texas.
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 Southlake
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.
Free — No Obligation
Can Your Southlake Garage Legally Become Living Space?
Not every garage qualifies. Send us the address and we’ll check ceiling height, setbacks, parking-replacement rules, and what Southlake will actually permit — before you spend anything.
- ✓Whether your garage meets Southlake conversion rules
- ✓Parking-replacement requirements that catch most owners out
- ✓Ceiling height, egress, and fire-separation checks
- ✓What the finished space could rent for
- ✓A straight answer within 48 hours
Check My Garage — 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.
Drawing Package Details
What's Included in Your Southlake Garage Conversion Package
What You Get
What's in Your Southlake Garage Conversion Package
One-time fee, no retainer, no hourly billing — your exact scope and price confirmed on a free call.
- ✓Site plan
- ✓Floor plans
- ✓All 4 elevations
- ✓Electrical plan
- ✓local energy code 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 Southlake's building department requirements and TX code. Delivered in 10 business days.
Submit to Your Building Dept
Download your complete package and submit to Planning & Development Services. We support plan check corrections at no extra charge.
Common Questions
Southlake Garage Conversion FAQs
Is a garage conversion allowed in Southlake? +
Yes — garage conversions are permitted in Southlake. Texas's local zoning ordinances allow 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 Southlake? +
Garage conversions in Southlake typically range from $100,000 to $220,000 depending on the existing structure, finish level, and scope of work. This is significantly less than building a new detached ADU. Contact us to discuss drawing package options for your project.
What drawings are required to permit a garage conversion in Southlake? +
Southlake'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 (the locally adopted energy code). 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 Southlake? +
Plan check in Southlake typically takes approximately 6 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 Southlake? +
Yes — a permitted garage conversion can function as a standalone rental unit (an ADU, or a similar accessory-unit category depending on Texas's and Southlake's local rules). It can be rented long-term. Short-term rental rules vary by city — confirm with Southlake'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 TX energy code requirements, which we handle in the local energy code compliance documentation.
How much does it cost to get garage conversion drawings in Southlake? +
Our permit-ready garage conversion drawing packages for Southlake include floor plans, elevations, electrical, and energy compliance — everything your building department needs. Every package is engineered for TX code compliance and formatted for Southlake's building department. 14-day money-back guarantee.
Will converting my garage increase my home's value in Southlake? +
A permitted garage conversion in Southlake adds rentable square footage to a home currently valued around $1,000,000. 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 Southlake
Need full ADU design drawings instead?
Next Steps
Ready to Move Forward With Your Southlake 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 Planning & 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 Planning & Development Services. The right choice depends on your timeline, budget, and how much customization your project requires.