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 · Drawings from $997 (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 22.0% — 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 6.0% cap rate on the investment. Occupancy averages 93.0% 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 California residential permitting and ADU documentation. This guide was researched and verified against Irving's building department records and current 2026 California ADU law.
Property Eligibility
Is My Irving, TX Property Eligible for an ADU?
Irving homeowners benefit from California's state ADU law — one of the most permissive frameworks in the country since 2020. Here's what applies to your property before you start designing.
Single-Family Home
Permitted on single-family lots in Irving under California state law. Irving requires owner occupancy — the property owner must reside in the primary home or the ADU. Ministerial permit approval — no neighbor input or discretionary design review.
Multi-Family Property
Up to 2 detached ADUs plus JADUs (Junior ADUs) within the existing main structure are permitted under California state law. Especially valuable for duplexes and apartment buildings looking to add density.
HOA-Governed Properties
Approximately 30% of Irving homes are in an HOA. California law (AB 670) prohibits HOAs from banning ADUs outright, but they can impose reasonable architectural standards. 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.
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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 × 22.0% uplift (California 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, California Statewide Communities Development Authority. Last verified: 2026-07-13.
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
Irving ADU Zoning Regulations
| Regulation | Irving Allowance |
|---|---|
| Max ADU Size | Up to 1,200 sq ft (CA state law) |
| Max Height | 25 ft |
| Side Setback | 5.0 ft |
| Rear Setback | 10.0 ft |
| 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 |
Data verified Mon Jul 13 2026 00:00:00 GMT+0000 (Coordinated Universal Time). 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 California state 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
$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 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
Transparent Pricing
Irving ADU Drawing Costs — Compared
What homeowners typically pay for permit-ready ADU drawings in Irving, by service type:
| Service Type | Price Range | Turnaround | Customization |
|---|---|---|---|
| Local Architect | $3,000 – $8,000 | 4–8 weeks | Fully custom |
| Build With A Plan · Starter | $997 | 10 days | Standard |
| Build With A Plan · Standard | $1,497 | 10 days | Standard |
| Build With A Plan · Premium | $2,497 | 5 days | Enhanced |
- ✓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
- ✓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. $6,000 flat — 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 California 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. Build With A Plan delivered the same permit-ready set for $997 — 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
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 included in the permit set? +
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
Free · No Obligation
Not Sure If Your Irving Lot Qualifies?
Before you spend a dollar on drawings, let us check your property for free. We'll tell you honestly whether your Irving lot supports an ADU, what it could rent for, and what to do next — no pressure, no sales pitch.
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