ADU Design Resource · Irving, TX
The Complete Guide to
Building an ADU in Irving, TX
Everything Irving 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 Irving, TX ADUs
Market Context
Irving has a median home value of $265,000. Adding an ADU typically increases that by 22% — approximately $58,300 in added equity. A 1-bedroom ADU in Irving rents for approximately $1,258/month in the Dallas County rental market , yielding a 6% cap rate on the investment. Occupancy averages 93% in this market.
Top Irving neighborhoods for ADU investment include Las Colinas, Valley Ranch, Urban Center (Las Colinas), Broadmoor Hills, Cardinal Family Village. High job density and strong rental demand near Las Colinas offices and DFW make ADUs lucrative. Large single-family lots and family-oriented neighborhood with steady rental demand make detached ADUs feasible.
Permit Process
Permit applications are reviewed by the Irving Inspections Department , with a plan check timeline of approximately 6 weeks. Permit fees in Irving range from $2,000 to $8,000 depending on project scope. Design review: Yes - in certain cases: ADUs/guest quarters require S-P-1 site-plan (zoning) approval and are subject to overlay/historic-district review where applicable
Irving's zoning ordinance requires a separate accessory structure setback survey before the Inspections Department will even log your ADU application, and many older lots in neighborhoods like Plymouth Park or Cottonwood Valley have platted easements that eat into your buildable area more than county records show. Because Irving ties ADU electrical permits to Oncor's service capacity check, homeowners on older 100-amp panels often get stuck waiting 3-4 extra weeks for a panel upgrade approval before framing inspections can even be scheduled. And since short-term rentals aren't allowed here, expect the plan reviewer to specifically flag any second kitchen setup that looks rental-ready, which can trigger a use clarification request that adds another review cycle.
"In my experience with Irving permitting, that 6-week timeline is best-case for a clean, correction-free submittal—I routinely see it stretch to 10-12 weeks once plan check comments come back on a first-time drawing set. The $300/sqft figure also reads like a statewide estimate rather than a true local number, so I'd get at least two local contractor bids and call the Irving Inspections Department directly before you lock in a budget."
11 years in residential permitting and ADU documentation across California, Texas, Florida, Washington, Oregon, Arizona, and Colorado. This guide was researched and verified against Irving's building department records and current 2026 Texas's local zoning ordinances.
Property Eligibility
Is My Irving, TX Property Eligible for an ADU?
Irving 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 Irving under Texas's local zoning ordinances — Texas has no statewide ADU-approval law. Irving requires owner occupancy — the property owner must reside in the primary home or the ADU. Review process and timelines are set entirely by local ordinance — confirm the current process with the Irving Inspections Department 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 Irving's local rules. Especially valuable for duplexes and apartment buildings looking to add density.
HOA-Governed Properties
Approximately 30% of Irving 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 certain cases: ADUs/guest quarters require S-P-1 site-plan (zoning) approval and are subject to overlay/historic-district review where applicable
Always verify eligibility with Irving Inspections Department before designing.
Free — No Obligation
Will Irving Approve an ADU on Your Lot?
Send us the address and we’ll check it against Irving’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 Irving 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
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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.
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Irving ADU Return Calculator — Built With 2026 Local Data
Pre-loaded with verified Irving 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: Irving Inspections Department (source ↗), Zillow Rental Market Reports, and public state/local housing data. Last verified: 2026-07-12.
Local Market Data
Top Irving Neighborhoods for ADU Investment
Las Colinas
High job density and strong rental demand near Las Colinas offices and DFW make ADUs lucrative.
Valley Ranch
Large single-family lots and family-oriented neighborhood with steady rental demand make detached ADUs feasible.
Urban Center (Las Colinas)
Close to Lake Carolyn, entertainment and jobs—good pickup for short-term and long-term rentals.
Broadmoor Hills
Predominantly single-family homes with sizable lots near transit corridors.
Cardinal Family Village
Established single-family stock and proximity to Las Colinas amenities support ADU demand.
Woodhaven-Irving
Ranch-style homes and mature lots create physical space for detached ADUs.
Song
Good access to entertainment and transit (Toyota Music Factory), supporting rentals for workers and visitors.
Towne Lake
Family-oriented neighborhood with yard space and commuter access—appeals to renter households.
Hospital District
Direct proximity to Baylor Scott & White Medical Center drives steady rental demand from hospital staff.
Hillcrest Oaks
Midcentury ranch lots and quick access to major roads make ADU construction and rentals practical.
Irving ADU Market at a Glance
Local Zoning Rules
2026 Irving ADU Rules
Irving's 2026 ADU ordinance caps new units at 1,200 sq ft and 25 ft of height — in the typical range most ADU floor plans are designed around. Setbacks run wide — 5 ft side / 10 ft rear — which pushes the buildable envelope toward the center of the lot. Irving 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 Irving Inspections Department. Submit directly to the department online — link below.
| Regulation | Irving Allowance |
|---|---|
| Max ADU Size | Set by local ordinance (no TX state cap) |
| Max Height | 25 ft |
| Side Setback | 5 ft |
| Rear Setback | 10 ft |
| Architect / Engineer Stamp | Not required under the size cap* |
| Owner Occupancy | Required |
| Short-Term Rental | Restricted |
| Coastal Overlay | No |
| Design Review | Yes - in certain cases: ADUs/guest quarters require S-P-1 site-plan (zoning) approval and are subject to overlay/historic-district review where applicable |
| HOA Prevalence | 30% 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 Irving Inspections Department before designing.
Irving Permit Process
Irving ADU Permit Timeline & Fees
ℹ Timeline and fee estimates are based on regional averages. Actual Irving data coming soon.
Local Financing Resources
Local ADU Lenders in Irving
These lenders offer HELOC, construction, and renovation loans for ADU projects in Dallas County. Compare terms before committing.
Offers HELOCs and Home Improvement loans (HELOCs up to ~80% LTV; Home Improvement loans up to 95% of home's value; terms up to 20 years) — Las Colinas FCU merged into Texans CU and serves Irving members.
Visit Lender ↗Texas HELOC product: CLTV limited to ~80%, minimum advance rules (TX $4,000 min draw), minimum loan amounts noted (CUTX lists $20k min, first‑lien max up to $750k) — commonly used for home improvements/ADUs.
Visit Lender ↗Local construction lender page for Irving offering one‑time and two‑time close construction loans with draw schedules and interest‑only payments during construction — contact local officer for ADU project limits/terms.
Visit Lender ↗Texas HELOC with a 5‑year draw (interest‑only) then 15‑year repayment; follows Texas 80% CLTV rule and $4,000 minimum draw — usable for renovations/ADU funding in the DFW area.
Visit Lender ↗Provides renovation financing based on after‑renovation value (post‑close HELOAN/HELOC products) through partner credit unions in Texas — can increase borrowing capacity for ADU projects compared with standard HELOCs.
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 Irving
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 Irving 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 Irving Inspections 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 Irving Inspections Department. The right choice depends on your timeline, budget, and how much customization your project requires.
Drawing Package Details
What's Included in Your Irving ADU Package
Engineered for TX Permit Approvals
What You Get
Irving ADU Drawings — What's Included
How our permit-ready drawing sets compare to hiring a local architect in Irving:
| 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 Irving 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 $1,258/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 Irving'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 Irving Inspections Department. 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 Irving.
Build costs reflect local construction data for Irving. Client names are initials only. Permit timelines are project-specific and may vary.
"We'd been quoted $6,200 by a local firm for the same permit-ready set. Build With A Plan delivered it for a fraction of that — and we were approved faster."
"Conversion permit came back approved on the first review. The drawings handled every detail — egress, HVAC, electrical. Nothing was missing."
"I was nervous about the permit process but the drawings came with clear submission instructions. Approved without a single correction cycle."
Representative scenarios. Build costs modeled using Irving construction data (city-verified data) and Irving Inspections Department. Outcomes vary by project scope and site conditions.
Building Code
Irving Climate Zone & Energy Code
Texas State Energy Code; the state requires compliance with the adopted IECC edition (with state-specific amendments) as evaluated by the Energy Systems Laboratory for residential and commercial buildings.
Compare Cities
Irving vs. Nearby Texas Cities
| City | Build Cost/sqft | Permit Fees | 1BR ADU Rent | Cap Rate | Eligibility |
|---|---|---|---|---|---|
| Irving ← you | $300 | $2,000+ | $1,258/mo | 6% | Free check → |
| Dallas | $250 | $1,707+ | $1,384/mo | 5.5% | View → |
| Garland | $275 | $2,000+ | $1,214/mo | 6.8% | View → |
| Grand Prairie | $250 | $2,899+ | $1,330/mo | 6.3% | View → |
| Mesquite | $225 | $2,000+ | $1,084/mo | 6.3% | View → |
Frequently Asked
Irving ADU Questions
How much does it cost to build an ADU in Irving? +
What is the maximum ADU size allowed in Irving? +
How long does the ADU permit process take in Irving? +
Do I need owner-occupancy to build an ADU in Irving? +
What's the rental income potential for an ADU in Irving? +
How much does it cost to get ADU drawings in Irving? +
What drawings are required for an ADU permit in Irving? +
Can I convert my garage to an ADU in Irving? +
What neighborhoods in Irving are best for ADU investment? +
Is Irving ADU-friendly? +
How much will an ADU increase my property value in Irving? +
Can I use my Irving ADU as a short-term rental (Airbnb / VRBO)? +
Does Irving's seismic zone affect ADU construction requirements? +
Where do I submit ADU plans in Irving? +
More Services in Irving
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