Home Addition Drawings · Arlington, TX
Permit-Ready Home Addition
Drawings for Arlington, TX
Expand your home with a permitted room addition, second story, or family room extension. We deliver complete, code-compliant drawing sets for Arlington's building department — in 10 business days, starting at $1,497.
14-day money-back guarantee · 10 business day turnaround
Local Intelligence
What Arlington Homeowners Need to Know Before Submitting
Size & Zoning Rules
0Arlington does not impose an owner-occupancy requirement, so you can rent both the main home and any ADU or conversion as investment units.
If the addition creates a second unit or is later converted to a rental, Arlington's ADU market supports approximately $1,509/month for a 2-bedroom unit.
Permit Process & Fees
Planning & Development Services permit fees for this project type typically range from $2,000 to $8,000 depending on project valuation and scope. Plan check runs approximately 6 weeks — though each correction cycle adds 3–6 weeks, which is why code-compliant drawings matter so much.
Addition permit packages 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 drawings are always required for any load-bearing elements, second-story work, or new foundation.
Visit Planning & Development Services ↗Construction Cost Context
Arlington's home addition construction costs run $200–$280 per square foot — a moderate 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 Arlington
Arlington's Planning & Development Services requires a separate plat review if your lot was subdivided before 1990, which catches a lot of older neighborhoods off guard and can tack on 3-4 weeks before your ADU plans even reach the building review stage. Since Arlington sits on clay-heavy soil common to Tarrant County, the department also frequently requests an engineered foundation plan stamped by a Texas-licensed engineer rather than accepting standard slab details, adding both cost and a review cycle. If you're planning to rent the ADU short-term, double check your specific neighborhood — Arlington allows STRs citywide, but deed restrictions in older platted subdivisions sometimes conflict with city code, and the city won't flag that conflict for you during permitting.
Expert Verdict — Marcus Reid, Licensed Designer
"In my experience, that $250/sqft and 6-week timeline are Arlington state-level estimates, not gospel—I'd get at least two local contractor quotes and call Planning & Development Services directly before penciling in a budget or schedule. And with 34% of the area under HOA control, I've seen that added layer of design review push even a clean 6-week plan check well past that mark if your drawing set isn't airtight from the start. — Charlotte Pemberton, Senior ADU Design Consultant"
Market Context
Arlington has a median home value of $246,000. Comparable renovation projects in this market typically add 22.0% to resale value.
Neighborhoods in Arlington with the strongest home addition and resale value potential include East Arlington, Downtown Arlington, Entertainment District, North Arlington, Dalworthington Gardens. Close to UT Arlington with many single-family lots and strong student/rental demand.
Permit Process
Permit applications are reviewed by the Planning & Development Services, with a plan check timeline of approximately 6 weeks. Permit fees in Arlington range from $2,000 to $8,000 depending on project scope. Design review: Yes - in historic districts only.
Arlington falls within Seismic Design Category A, which affects structural requirements for any new addition tying into the existing structure.
Local Financing Resources
Local Home Addition Lenders in Arlington
These lenders offer HELOC, construction, and renovation loans for home addition projects in Tarrant County. Compare terms before committing.
Offers construction loans and home equity products; minimum home equity loan $25,000 and maximums up to $250,000 (determined by equity).
Visit Lender ↗Advertises home equity loans and mortgage lending with terms up to 30 years and competitive APRs suitable for renovations/ADU financing.
Visit Lender ↗Local Arlington branch (200 SE Green Oaks Blvd) and home equity loan product listings (rates shown as low as ~4.99%), suitable for renovation/ADU projects.
Visit Lender ↗Has an Arlington branch and advertises home equity and mortgage products that can be used for renovations or ADU financing.
Visit Lender ↗Specialty renovation/ADU lender that underwrites to after-renovation value and partners with credit unions nationwide — suitable for ADU projects in Arlington when working through partner credit unions.
Visit Lender ↗Build With A Plan is not affiliated with these lenders. Always compare rates and consult a mortgage professional.
Local Build Partners
Vetted Home Addition Contractors in Arlington
We draw the plans. These contractors build the addition. 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 Arlington Home Addition Package
Transparent Pricing
Arlington Home Addition Drawing Packages
One-time fee. No retainer. No hourly billing.
- ✓Site plan
- ✓Floor plans (existing + proposed)
- ✓All 4 elevations
- ✓Electrical plan
- ✓Title 24 energy compliance
- ✓PDF + DWG delivery
- ✓10 business day turnaround
- ✓Everything in Starter
- ✓Stamped structural drawings
- ✓Foundation plan
- ✓Roof framing plan
- ✓Window & door schedules
- ✓1 round of revisions
- ✓Everything in Standard
- ✓3D rendering
- ✓Cross-section details
- ✓Material specifications
- ✓HOA submission package
- ✓2 rounds of revisions
- ✓Priority 5-day turnaround
After You Order
Your Addition Drawings in 3 Steps
Submit Your Project Details
Share your property address, existing floor plan (if available), and the addition scope. We assign your project coordinator within 4 business hours.
We Draft Your Drawings
Our team designs your complete addition drawing set — engineered for Arlington's building department requirements and TX CBC 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
Arlington Home Addition FAQs
Do I need a permit for a home addition in Arlington? +
Yes — any structural addition to your home in Arlington requires a building permit. This applies to room additions, second-story additions, sunrooms, and attached garages. You'll need permit-ready drawings before the building department will accept your application. Our packages are formatted specifically for Arlington's submittal requirements.
How much does a home addition cost in Arlington? +
Home additions in Arlington typically cost between $180.0–$320.0 per square foot depending on the scope, finishes, and structural complexity. A 600 sq ft addition ranges from $108,000 to $192,000. Second-story additions cost more than ground-floor extensions due to structural requirements. Our drawing packages start at $1,497 — a fraction of local architectural fees.
What drawings are required to permit a home addition in Arlington? +
Arlington's building department requires: a site plan showing the addition's footprint and setbacks, floor plans for all affected levels, all four exterior elevations, an electrical plan, and energy compliance (Title 24 in California). Structural plans stamped by a licensed engineer are required for any load-bearing elements — included in our Premium package.
How long does the permit process take for a home addition in Arlington? +
Plan check in Arlington typically takes 6 weeks for home additions. Additions with structural components may require additional review. Complete, code-compliant drawings significantly reduce correction cycles — each cycle adds 3–6 weeks. Our drawings are engineered to pass on the first submittal.
What setbacks apply to home additions in Arlington? +
Arlington enforces minimum setbacks from property lines for all additions: typically 4–5 ft side setbacks and 5 ft rear setbacks, though these vary by zoning district and lot size. Your addition must stay within the buildable envelope. Our site plan documents existing and proposed setbacks and flags any zoning variances required.
Do I need structural drawings for a home addition in Arlington? +
Yes, for most additions. Any load-bearing walls, new foundations, second-story construction, or roof structure changes require stamped structural drawings from a licensed engineer. California's CBC (California Building Code) and seismic requirements make structural plans mandatory for most addition types. Our Standard and Premium packages include stamped structural drawings.
How much do home addition drawings cost in Arlington? +
Our permit-ready home addition drawing packages for Arlington start at $1,497. Local architects and designers typically charge $3,000–$10,000+ for comparable drawing sets. Every package is engineered for TX code compliance and formatted for Arlington's building department. Turnaround is 10 business days with a 14-day money-back guarantee.
Will a home addition increase my home's value in Arlington? +
In Arlington, where median home values are approximately $246,000, a permitted home addition adds square footage that appraisers value as part of the home's gross living area. Return on investment varies by addition type — master suite additions, family room expansions, and additional bedrooms typically recoup 50–75% of project cost in appraised value in TX markets.
Can I add a second story to my home in Arlington? +
Second-story additions are permitted in most Arlington residential zones, subject to height limits and design review requirements. California generally requires ministerial permit approval, but some cities impose design compatibility or neighborhood compatibility review for second stories. Our drawings cover all levels including foundation upgrades, shear walls, and roof framing required for vertical additions.
Nearby Cities
Also Available in Arlington
Adding an ADU instead? See our ADU design service.
Next Steps
Ready to Move Forward With Your Arlington 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
$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 Planning & Development Services. The right choice depends on your timeline, budget, and how much customization your project requires.