Home Addition Drawings · Irving, TX
Permit-Ready Home Addition
Drawings for Irving, TX
Expand your home with a permitted room addition, second story, or family room extension. We deliver complete, code-compliant drawing sets for Irving's building department — in 10 business days, starting at $1,497.
14-day money-back guarantee · 10 business day turnaround
Local Intelligence
What Irving Homeowners Need to Know Before Submitting
Size & Zoning Rules
0Irving 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.
If the addition creates a second unit or is later converted to a rental, Irving's ADU market supports approximately $1,601/month for a 2-bedroom unit.
Permit Process & Fees
Irving Inspections Department 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 Irving Inspections Department 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 Irving Inspections Department ↗Construction Cost Context
Irving's home addition construction costs run $210–$294 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 Irving
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.
Expert Verdict — Marcus Reid, Licensed Designer
"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."
Market Context
Irving has a median home value of $265,000. Comparable renovation projects in this market typically add 22.0% to resale value.
Neighborhoods in Irving with the strongest home addition and resale value potential 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.
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 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 Irving
These lenders offer HELOC, construction, and renovation loans for home addition 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 Home Addition Contractors in Irving
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 Irving Home Addition Package
Transparent Pricing
Irving 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 Irving'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 Irving Inspections Department. We support plan check corrections at no extra charge.
Common Questions
Irving Home Addition FAQs
Do I need a permit for a home addition in Irving? +
Yes — any structural addition to your home in Irving 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 Irving's submittal requirements.
How much does a home addition cost in Irving? +
Home additions in Irving typically cost between $220.0–$300.0 per square foot depending on the scope, finishes, and structural complexity. A 600 sq ft addition ranges from $132,000 to $180,000. 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 Irving? +
Irving'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 Irving? +
Plan check in Irving 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 Irving? +
Irving 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 Irving? +
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 Irving? +
Our permit-ready home addition drawing packages for Irving 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 Irving'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 Irving? +
In Irving, where median home values are approximately $265,000, 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 Irving? +
Second-story additions are permitted in most Irving 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 Irving
Adding an ADU instead? See our ADU design service.
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.