Home Addition Drawings · Arvada, CO
Permit-Ready Home Addition
Drawings for Arvada, CO
Expand your home with a permitted room addition, second story, or family room extension. We deliver complete, code-compliant drawing sets for Arvada's building department — in 10 business days, starting at $1,497.
14-day money-back guarantee · 10 business day turnaround
Local Intelligence
What Arvada Homeowners Need to Know Before Submitting
Size & Zoning Rules
Any new square footage added to your Arvada home counts against the same zoning envelope that governs ADU size, meaning large additions may affect your ability to add a future ADU. Arvada's current ADU size cap is 1,200 sq ft — generous enough to accommodate most project types.
Arvada 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, Arvada's ADU market supports approximately $1,816/month for a 2-bedroom unit.
Permit Process & Fees
Building Services permit fees for this project type typically range from $4,359 to $5,078 depending on project valuation and scope. Plan check runs approximately 3 weeks — though each correction cycle adds 3–6 weeks, which is why code-compliant drawings matter so much.
Addition permit packages submitted to Building 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 Building Services ↗Construction Cost Context
Arvada'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 Arvada
Arvada's Building Services often requires a separate tap fee study for water and sewer if your ADU adds a bedroom, since many older lots in the North Arvada and Olde Town areas are still on undersized service lines that can't legally support a second unit without upgrading the connection at the main. This tap upgrade alone can run several thousand dollars and isn't something the standard permit checklist flags upfront, so homeowners often get surprised mid-review. On top of that, Jefferson County's overlapping records for lot lines in some older subdivisions can cause setback disputes that stall plan review until a licensed surveyor confirms the actual boundary.
Expert Verdict — Marcus Reid, Licensed Designer
"In my experience with Arvada permitting, that 3-week timeline is best-case for a spotless drawing set — most first-time applicants see at least one correction cycle that pushes it closer to 6-8 weeks, so call Building Services directly to check current queue times before penciling in a start date. I'd also treat that $300/sqft figure as a state-level ballpark rather than gospel; with 34% of the area under HOAs adding their own design review layer, I always tell clients to get two or three local contractor quotes before budgeting."
Market Context
Arvada has a median home value of $521,000. Comparable renovation projects in this market typically add 23.0% to resale value.
Neighborhoods in Arvada with the strongest home addition and resale value potential include Olde Town Arvada, Lamar Heights, Allendale, Alta Vista, Oak Crest. High transit access (RTD G Line) and walkable downtown amenities create strong rental demand and good ADU rental prospects.
Permit Process
Permit applications are reviewed by the Building Services, with a plan check timeline of approximately 3 weeks. Permit fees in Arvada range from $4,359 to $5,078 depending on project scope. Design review: Yes - in historic districts only.
Arvada falls within Seismic Design Category Seismic Design Category B (SDC B), which affects structural requirements for any new addition tying into the existing structure.
Local Financing Resources
Local Home Addition Lenders in Arvada
These lenders offer HELOC, construction, and renovation loans for home addition projects in Jefferson County. Compare terms before committing.
Offers HELOCs and home equity loans in Colorado; uses AVM for some loans, may require appraisal for larger amounts; membership required (small fee).
Visit Lender ↗Home Equity ChoiceLine combines HELOC flexibility with fixed-rate advance options—suitable for renovation/ADU draw management; lower rates than unsecured loans.
Visit Lender ↗Offers standard and variable HELOC options for remodels/renovations; repayment terms up to 240–300 months depending on product; available for Colorado properties.
Visit Lender ↗Construction-to-permanent and residential construction loans available—single-close options to fund building/ADU construction and convert to a mortgage when complete.
Visit Lender ↗Specialty renovation/ADU lender-technology; RenoFi’s products (loan sizes $25k–$750k) and after-renovation valuation feature increase borrowing power and are delivered via partner credit unions nationwide.
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 Arvada
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 Arvada Home Addition Package
Transparent Pricing
Arvada 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 Arvada's building department requirements and CO CBC code. Delivered in 10 business days.
Submit to Your Building Dept
Download your complete package and submit to Building Services. We support plan check corrections at no extra charge.
Common Questions
Arvada Home Addition FAQs
Do I need a permit for a home addition in Arvada? +
Yes — any structural addition to your home in Arvada 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 Arvada's submittal requirements.
How much does a home addition cost in Arvada? +
Home additions in Arvada typically cost between $250.0–$320.0 per square foot depending on the scope, finishes, and structural complexity. A 600 sq ft addition ranges from $150,000 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 Arvada? +
Arvada'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 Arvada? +
Plan check in Arvada typically takes 3 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 Arvada? +
Arvada 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 Arvada? +
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 Arvada? +
Our permit-ready home addition drawing packages for Arvada start at $1,497. Local architects and designers typically charge $3,000–$10,000+ for comparable drawing sets. Every package is engineered for CO code compliance and formatted for Arvada'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 Arvada? +
In Arvada, where median home values are approximately $521,000, 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 CO markets.
Can I add a second story to my home in Arvada? +
Second-story additions are permitted in most Arvada 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 Arvada
Adding an ADU instead? See our ADU design service.
Next Steps
Ready to Move Forward With Your Arvada 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 Building 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 Building Services. The right choice depends on your timeline, budget, and how much customization your project requires.