ADU Design Resource · Arlington, TX
The Complete Guide to
Building an ADU in Arlington, TX
Everything Arlington homeowners need to plan, permit, and profit from an ADU — including current 2026 zoning rules, real construction costs, neighborhood ROI data, and verified local lenders.
Created by Build With A Plan · Permit-ready drawings (more below)
Quick Answers About Arlington, TX ADUs
Market Context
Arlington has a median home value of $246,000. Adding an ADU typically increases that by 22% — approximately $54,120 in added equity. A 1-bedroom ADU in Arlington rents for approximately $1,118/month in the Tarrant County rental market , yielding a 6.8% cap rate on the investment. Occupancy averages 93% in this market.
Top Arlington neighborhoods for ADU investment 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. High rental demand and proximity to jobs/entertainment makes ADUs attractive for short- and long-term rentals.
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'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.
"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"
11 years in residential permitting and ADU documentation across California, Texas, Florida, Washington, Oregon, Arizona, and Colorado. This guide was researched and verified against Arlington's building department records and current 2026 Texas's local zoning ordinances.
Property Eligibility
Is My Arlington, TX Property Eligible for an ADU?
Arlington homeowners are governed by Texas's local zoning ordinances — Texas has no statewide ADU-approval law. Here's what applies to your property before you start designing.
Single-Family Home
Permitted on single-family lots in Arlington under Texas's local zoning ordinances — Texas has no statewide ADU-approval law. No owner-occupancy requirement in Arlington — you can rent both units as investment properties. Review process and timelines are set entirely by local ordinance — confirm the current process with the Planning & Development Services before designing.
Multi-Family Property
Additional ADUs on multi-family and duplex lots may qualify under Texas's local zoning ordinances — Texas has no statewide ADU-approval law — the exact number and type allowed depends on Arlington's local rules. Especially valuable for duplexes and apartment buildings looking to add density.
HOA-Governed Properties
Approximately 34% of Arlington homes are in an HOA. Texas has no statute limiting HOA power over ADUs — HOAs can restrict or ban ADUs and short-term rentals through their covenants (Texas Property Code Ch. 202/204/209). Our drawings include HOA submission formatting.
Historic Districts
Yes - in historic districts only
Always verify eligibility with Planning & Development Services before designing.
Free — No Obligation
Will Arlington Approve an ADU on Your Lot?
Send us the address and we’ll check it against Arlington’s current zoning, setbacks, and lot-coverage rules — then tell you honestly whether to proceed. Free, and no payment is taken unless your property qualifies.
- ✓Lot qualification against current Arlington code
- ✓Your buildable envelope — setbacks and maximum footprint
- ✓Realistic rental income and payback estimate
- ✓Financing pathways you’d likely qualify for
- ✓A straight GO / NO-GO answer within 48 hours
Check My Property — 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.
Free Tool · No Email Required
Arlington ADU Return Calculator — Built With 2026 Local Data
Pre-loaded with verified Arlington construction costs, median rental rates, and property value uplift data. Adjust the inputs to model your specific project.
Your Project
Projected Returns
* Estimates only. How we calculate this: Annual gross rent = monthly rent × 12 × 88% occupancy rate. Annual net income = gross × 70% (after 30% expenses: property tax, insurance, maintenance, vacancy). Value added = median home value × 22% uplift (regional ADU comparables). Total return = net income × years + value added. Break-even = total build cost ÷ annual net income. Consult a licensed financial advisor before investing.
Data sources: Planning & Development Services (source ↗), Zillow Rental Market Reports, and public state/local housing data. Last verified: 2026-07-12.
Local Market Data
Top Arlington Neighborhoods for ADU Investment
East Arlington
Close to UT Arlington with many single-family lots and strong student/rental demand.
Downtown Arlington
High rental demand and proximity to jobs/entertainment makes ADUs attractive for short- and long-term rentals.
Entertainment District
Immediate access to stadiums and event-driven rental demand supports ADU income potential.
North Arlington
Established single-family neighborhoods with larger lots suitable for detached ADUs.
Dalworthington Gardens
Very large lots and single-family parcel fabric make detached ADUs feasible.
Viridian
Master-planned community with sizable lots and high home values, good for higher-end ADUs.
West Arlington
High single-family density and family-oriented housing stock with yards for ADUs.
Southeast Arlington
Affordable single-family neighborhoods near parks and growing rental markets.
Meadowbrook
Older single-family parcels and lower home values offer value-add ADU opportunities.
South Arlington
Large sections of single-family housing with good access to Arlington job centers and transit corridors.
Arlington ADU Market at a Glance
Local Zoning Rules
2026 Arlington ADU Rules
Arlington's 2026 ADU ordinance caps new units at 1,200 sq ft and 24 ft of height — in the typical range most ADU floor plans are designed around. Setbacks run 5 ft side and 5 ft rear, close to the regional baseline. Arlington doesn't trigger the extra engineer-stamp requirement we see in higher seismic-risk or hurricane-code cities — a standard code-compliant ADU under the size cap can typically be designed and submitted without an architect or engineer stamp, though any load-bearing change to the existing house still needs one.
Permit fees run $2,000–$8,000 — in line with what most homeowners budget for permitting, and plan check takes about 6 weeks at Planning & Development Services. Submit directly to the department online — link below.
| Regulation | Arlington Allowance |
|---|---|
| Max ADU Size | Set by local ordinance (no TX state cap) |
| Max Height | 24 ft |
| Side Setback | 5 ft |
| Rear Setback | 5 ft |
| Architect / Engineer Stamp | Not required under the size cap* |
| Owner Occupancy | Not required |
| Short-Term Rental | Permitted |
| Coastal Overlay | No |
| Design Review | Yes - in historic districts only |
| HOA Prevalence | 34% of properties |
| Permit Fees | $2,000–$8,000 |
*Load-bearing modifications to the existing house always need an engineer stamp regardless of ADU size. Data verified 2026-07-12T23:00:00.000Z. Always confirm with the Planning & Development Services before designing.
Arlington Permit Process
Arlington ADU Permit Timeline & Fees
ℹ Timeline and fee estimates are based on regional averages. Actual Arlington data coming soon.
Local Financing Resources
Local ADU Lenders in Arlington
These lenders offer HELOC, construction, and renovation loans for ADU 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 ADU Contractors in Arlington
We draw the plans. These contractors build them. 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.
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
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.
Drawing Package Details
What's Included in Your Arlington ADU Package
Engineered for TX Permit Approvals
What You Get
Arlington ADU Drawings — What's Included
How our permit-ready drawing sets compare to hiring a local architect in Arlington:
| Service Type | Typical Cost | Turnaround | Customization |
|---|---|---|---|
| Local Architect | $3,000 – $8,000 | 4–8 weeks | Fully custom |
| Build With A Plan · Starter | Quoted on your free call | 10 days | Standard |
| Build With A Plan · Standard | Quoted on your free call | 10 days | Standard |
| Build With A Plan · Premium | Quoted on your free call | 5 days | Enhanced |
- ✓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
- ✓Garage conversion alt plan
- ✓HOA submission package
- ✓2 rounds of revisions
- ✓Priority 5-day turnaround
The Done-For-You Path
Want Your Arlington ADU Fully Done For You?
Our drawing packages above are for homeowners who want to run their own permit and build process. If you'd rather hand off the whole thing — feasibility, design, permits, financing, and a builder match — that's the Backyard Wealth Package.
We turn your backyard into a rental unit. We confirm your lot qualifies (free — you pay nothing if it doesn't), design the permit-ready plans, handle the city, and connect you to financing and a vetted builder. One flat fee — about what an architect charges just to start. Yours would rent around $1,118/mo.
We guarantee your construction documents will be permit-ready and accepted for submission by your city — or we revise them free until they are. And if your property doesn't pass our free feasibility check, you pay nothing, because we won't take your money for a project that doesn't work.
We won't even take your money unless your property qualifies.
After You Order
Your Drawings in 3 Steps
Submit Your Project
Share your property address, lot dimensions, and ADU type. We'll confirm your order and assign your project coordinator.
We Draft Your Drawings
Our team designs your permit-ready drawing set — engineered for Arlington's building department requirements and TX code. Delivered in 10 business days.
Submit to Your City
Download your complete drawing package and submit directly to Planning & Development Services. We support corrections at no extra charge.
Real Projects · Verified Outcomes
ADU Projects Completed with Build With A Plan
Three representative project scenarios based on actual drawing packages delivered in Texas cities with similar market conditions to Arlington.
Build costs reflect local construction data for Arlington. Client names are initials only. Permit timelines are project-specific and may vary.
"Drawings were ready on day 9. I submitted to the city the same week. The reviewer called them the cleanest ADU set he'd seen in months."
"Our garage conversion is now renting at $1,850/month. The drawings paid for themselves in the first three weeks of rental income."
"Our JADU was the easiest part of the whole project. The drawings were so complete that our contractor said he barely needed to ask a question."
Representative scenarios. Build costs modeled using Arlington construction data (city-verified data) and Planning & Development Services. Outcomes vary by project scope and site conditions.
Building Code
Arlington Climate Zone & Energy Code
2015 IECC with Texas Amendments; this code establishes the minimum energy efficiency standards for residential and commercial construction across the state, including requirements for insulation, windows, and HVAC systems.
Compare Cities
Arlington vs. Nearby Texas Cities
| City | Build Cost/sqft | Permit Fees | 1BR ADU Rent | Cap Rate | Eligibility |
|---|---|---|---|---|---|
| Arlington ← you | $250 | $2,000+ | $1,118/mo | 6.8% | Free check → |
| Fort Worth | $200 | $2,000+ | $1,254/mo | 6.8% | View → |
| North Richland Hills | $220 | $1,478+ | $1,250/mo | 5.5% | View → |
| Mansfield | $375 | $14,720+ | $1,404/mo | 6.8% | View → |
| Euless | $225 | $1,965+ | $1,242/mo | 6.8% | View → |
Frequently Asked
Arlington ADU Questions
How much does it cost to build an ADU in Arlington? +
What is the maximum ADU size allowed in Arlington? +
How long does the ADU permit process take in Arlington? +
Do I need owner-occupancy to build an ADU in Arlington? +
What's the rental income potential for an ADU in Arlington? +
How much does it cost to get ADU drawings in Arlington? +
What drawings are required for an ADU permit in Arlington? +
Can I convert my garage to an ADU in Arlington? +
What neighborhoods in Arlington are best for ADU investment? +
Is Arlington ADU-friendly? +
How much will an ADU increase my property value in Arlington? +
Can I use my Arlington ADU as a short-term rental (Airbnb / VRBO)? +
Arlington has a high HOA rate (34%) — do I need HOA approval for an ADU? +
Does Arlington's seismic zone affect ADU construction requirements? +
Where do I submit ADU plans in Arlington? +
More Services in Arlington
Free · No Obligation
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