ADU Design Resource · Arvada, CO
The Complete Guide to
Building an ADU in Arvada, CO
Everything Arvada 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 Arvada, CO ADUs
Market Context
Arvada has a median home value of $521,000. Adding an ADU typically increases that by 23% — approximately $119,830 in added equity. A 1-bedroom ADU in Arvada rents for approximately $1,523/month in the Jefferson County rental market , yielding a 5.2% cap rate on the investment. Occupancy averages 94% in this market.
Top Arvada neighborhoods for ADU investment 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. Close to Olde Town and medical centers with older single-family homes and solid rental demand for nearby jobs.
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'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.
"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."
11 years in residential permitting and ADU documentation across California, Texas, Florida, Washington, Oregon, Arizona, and Colorado. This guide was researched and verified against Arvada's building department records and current 2026 Colorado's HB24-1152 ADU law.
Property Eligibility
Is My Arvada, CO Property Eligible for an ADU?
Arvada homeowners are governed by Colorado's HB24-1152 (2024). Here's what applies to your property before you start designing.
Single-Family Home
Permitted on single-family lots in Arvada under Colorado's HB24-1152 (2024). No owner-occupancy requirement in Arvada — you can rent both units as investment properties. Colorado doesn't set a fixed statutory review-day count — confirm the current timeline with the Building Services.
Multi-Family Property
Additional ADUs on multi-family and duplex lots may qualify under Colorado's HB24-1152 (2024) — the exact number and type allowed depends on Arvada's local rules. Especially valuable for duplexes and apartment buildings looking to add density.
HOA-Governed Properties
Approximately 34% of Arvada homes are in an HOA. Colorado's C.R.S. §38-33.3-106.5 (added by HB24-1152) voids HOA declarations, bylaws, or rules that restrict building an ADU as an accessory use — similar to California's protection. HOAs can still apply reasonable design standards. Our drawings include HOA submission formatting.
Historic Districts
Yes - in historic districts only
Always verify eligibility with Building Services before designing.
Free — No Obligation
Will Arvada Approve an ADU on Your Lot?
Send us the address and we’ll check it against Arvada’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 Arvada 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
Arvada ADU Return Calculator — Built With 2026 Local Data
Pre-loaded with verified Arvada 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 × 23% 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: Building Services (source ↗), Zillow Rental Market Reports, and public state/local housing data. Last verified: 2026-07-12.
Local Market Data
Top Arvada Neighborhoods for ADU Investment
Olde Town Arvada
High transit access (RTD G Line) and walkable downtown amenities create strong rental demand and good ADU rental prospects.
Lamar Heights
Close to Olde Town and medical centers with older single-family homes and solid rental demand for nearby jobs.
Allendale
Established neighborhood with many single-family lots and good proximity to Arvada’s core, boosting ADU rental potential.
Alta Vista
Midcentury single-family homes near Olde Town and parks, with lot configurations often suitable for detached ADUs.
Oak Crest
Larger lots close to Olde Town make detached ADUs feasible and desirable for renters seeking neighborhood access.
Club Crest
Diverse housing stock and relatively affordable single-family properties present good ADU opportunities.
Meadowglen
Good single-family density and proximity to Standley Lake and commuting routes increases rental demand.
Ralston Valley
Family-oriented neighborhood with stable rental demand and parcel sizes that can accommodate ADUs.
Northwood Acres
Very large lots make detached ADUs straightforward, though higher home values mean larger upfront costs.
Quaker Acres
Large lot sizes and semi-rural character are ideal for detached ADUs and unit privacy.
Arvada ADU Market at a Glance
Local Zoning Rules
2026 Arvada ADU Rules
Arvada's 2026 ADU ordinance caps new units at 1,200 sq ft and 30 ft of height — in the typical range most ADU floor plans are designed around. Setbacks run wide — 10 ft side / 15 ft rear — which pushes the buildable envelope toward the center of the lot. Arvada 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 $4,359–$5,078 — in line with what most homeowners budget for permitting, and plan check takes about 3 weeks at Building Services. Submit directly to the department online — link below.
| Regulation | Arvada Allowance |
|---|---|
| Max ADU Size | 1,200 sq ft |
| Max Height | 30 ft |
| Side Setback | 10 ft |
| Rear Setback | 15 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 | $4,359–$5,078 |
*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 Building Services before designing.
Arvada Permit Process
Arvada ADU Permit Timeline & Fees
Local Financing Resources
Local ADU Lenders in Arvada
These lenders offer HELOC, construction, and renovation loans for ADU 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 ADU Contractors in Arvada
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 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
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 Building Services. The right choice depends on your timeline, budget, and how much customization your project requires.
Drawing Package Details
What's Included in Your Arvada ADU Package
Engineered for CO Permit Approvals
What You Get
Arvada ADU Drawings — What's Included
How our permit-ready drawing sets compare to hiring a local architect in Arvada:
| 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
- ✓CO 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 Arvada 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 $1,523/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 Arvada's building department requirements and CO code. Delivered in 10 business days.
Submit to Your City
Download your complete drawing package and submit directly to Building 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 Colorado cities with similar market conditions to Arvada.
Build costs reflect local construction data for Arvada. 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 Arvada construction data (city-verified data) and Building Services. Outcomes vary by project scope and site conditions.
Building Code
Arvada Climate Zone & Energy Code
Colorado Model Low Energy Carbon Code — Colorado’s state energy code (based on the 2024 IECC); it emphasizes decarbonization and updated energy-efficiency requirements including EV/solar-ready provisions and demand-response controls for dwellings.
Compare Cities
Arvada vs. Nearby Colorado Cities
| City | Build Cost/sqft | Permit Fees | 1BR ADU Rent | Cap Rate | Eligibility |
|---|---|---|---|---|---|
| Arvada ← you | $300 | $4,359+ | $1,523/mo | 5.2% | Free check → |
| Lakewood | $225 | $3,238+ | $1,628/mo | 5.5% | View → |
| Wheat Ridge | $300 | $5,866+ | $1,547/mo | 5.9% | View → |
| Golden | — | $3,400+ | $1,799/mo | 5% | View → |
| Denver | $250 | $2,200+ | $1,588/mo | 5.8% | View → |
Frequently Asked
Arvada ADU Questions
How much does it cost to build an ADU in Arvada? +
What is the maximum ADU size allowed in Arvada? +
How long does the ADU permit process take in Arvada? +
Do I need owner-occupancy to build an ADU in Arvada? +
What's the rental income potential for an ADU in Arvada? +
How much does it cost to get ADU drawings in Arvada? +
What drawings are required for an ADU permit in Arvada? +
Can I convert my garage to an ADU in Arvada? +
What neighborhoods in Arvada are best for ADU investment? +
Is Arvada ADU-friendly? +
How much will an ADU increase my property value in Arvada? +
Can I use my Arvada ADU as a short-term rental (Airbnb / VRBO)? +
Arvada has a high HOA rate (34%) — do I need HOA approval for an ADU? +
Does Arvada's seismic zone affect ADU construction requirements? +
Where do I submit ADU plans in Arvada? +
More Services in Arvada
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