ADU Design Resource · Scottsdale, AZ
The Complete Guide to
Building an ADU in Scottsdale, AZ
Everything Scottsdale 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 Scottsdale, AZ ADUs
Market Context
Scottsdale has a median home value of $753,000. Adding an ADU typically increases that by 20.0% — approximately $150,600 in added equity. A 1-bedroom ADU in Scottsdale rents for approximately $1,749/month in the Maricopa County rental market , yielding a 4.8% cap rate on the investment. Occupancy averages 91.0% in this market.
Top Scottsdale neighborhoods for ADU investment include Old Town (Downtown) Scottsdale, McCormick Ranch, Scottsdale Ranch, South Scottsdale, Indian Bend / Indian Bend Village. High rental demand and proximity to restaurants, nightlife and jobs make ADUs attractive for short- and long-term renters. Large single-family lot stock and family-oriented neighborhood provide space and steady rental demand for ADUs.
Permit Process
Permit applications are reviewed by the Planning and Development , with a plan check timeline of approximately 5 weeks. Permit fees in Scottsdale range from $16,333 to $16,803 depending on project scope. Design review: No citywide requirement — ADUs are approved via administrative review, but additional design review is required in certain overlays and historic/hillside districts (e.g., Foothills Overlay, Hillside/ESLO, and historic preservation areas)
11 years in California residential permitting and ADU documentation. This guide was researched and verified against Scottsdale's building department records and current 2026 California ADU law.
Property Eligibility
Is My Scottsdale, AZ Property Eligible for an ADU?
Scottsdale 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 Scottsdale under California state law. Scottsdale 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 35% of Scottsdale 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
No citywide requirement — ADUs are approved via administrative review, but additional design review is required in certain overlays and historic/hillside districts (e.g., Foothills Overlay, Hillside/ESLO, and historic preservation areas)
Always verify eligibility with Planning and Development before designing.
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Scottsdale ADU Return Calculator — Built With 2026 Local Data
Pre-loaded with verified Scottsdale construction costs, median rental rates, and property value uplift data. Adjust the inputs to model your specific project.
Your Project
Projected Returns
* Estimates only. Assumes ~85% occupancy, ~30% expense ratio, 20.0% property value uplift. Consult a financial advisor before investing.
Data sources: Scottsdale Development Services Department, Zillow Rental Market Reports, local appraiser records. Last verified: 2026-05-30.
Local Market Data
Top Scottsdale Neighborhoods for ADU Investment
Old Town (Downtown) Scottsdale
High rental demand and proximity to restaurants, nightlife and jobs make ADUs attractive for short- and long-term renters.
McCormick Ranch
Large single-family lot stock and family-oriented neighborhood provide space and steady rental demand for ADUs.
Scottsdale Ranch
High single-family density with family housing and sizeable lots near employment corridors increases ADU feasibility.
South Scottsdale
Relatively more affordable pockets and proximity to central Scottsdale boost renter demand and ADU return potential.
Indian Bend / Indian Bend Village
Close to Old Town and central amenities, offering strong rental demand and walkable access to jobs and services.
Grayhawk (North Scottsdale)
Master-planned single-family neighborhoods with larger lots in North Scottsdale make detached ADUs possible and desirable.
North Scottsdale (aggregate)
Large lots, low-density single-family development and strong demand from long-term renters/seasonal residents.
Gainey Ranch
High home values and proximity to Scottsdale Fashion Square/Old Town create rental upside but watch HOA restrictions.
DC Ranch
Very large lots and affluent buyers mean space for ADUs but strong HOA/architectural controls can limit approvals.
Desert Mountain (far North Scottsdale)
Very large lots and high prices offer ADU space, but remote location and strict CC&Rs/HOAs reduce market rental flexibility.
Scottsdale ADU Market at a Glance
Local Zoning Rules
Scottsdale ADU Zoning Regulations
| Regulation | Scottsdale Allowance |
|---|---|
| Max ADU Size | 1,000 sq ft |
| Max Height | 16 ft (detached) |
| Side Setback | 5.0 ft |
| Rear Setback | 5.0 ft |
| Owner Occupancy | Required |
| Short-Term Rental | Permitted |
| Coastal Overlay | No |
| Design Review | No citywide requirement — ADUs are approved via administrative review, but additional design review is required in certain overlays and historic/hillside districts (e.g., Foothills Overlay, Hillside/ESLO, and historic preservation areas) |
| HOA Prevalence | 35% of properties |
Data verified recently. Always confirm with the Planning and Development before designing.
Scottsdale Permit Process
Scottsdale ADU Permit Timeline & Fees
ℹ Timeline and fee estimates are based on California state averages. Actual Scottsdale data coming soon.
Local Financing Resources
Local ADU Lenders in Scottsdale
These lenders offer HELOC, construction, and renovation loans for ADU projects in Maricopa County. Compare terms before committing.
Minimum application $10,000; CLTV up to 80%; suitable for renovations including ADU work.
Visit Lender ↗Offers home equity loans/HELOCs up to ~$726,000 CLTV; promotional flat $399 closing fee on fixed home equity loans.
Visit Lender ↗Offers both HELOC and fixed-rate home equity loans for home improvements; online HELOC/loan applications available in Arizona.
Visit Lender ↗Short-term interest-only construction draw loans requiring a general contractor; supports construction-to-permanent or one-time-close options.
Visit Lender ↗Specialty renovation/ADU financing platform that partners with credit unions — offers renovation HELOCs/HELOANs and fixed-rate options (loans commonly $10k–$750k via partners).
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 Scottsdale
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 Scottsdale 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 Planning and Development.
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 – $1,997
- ✓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 Planning and Development. The right choice depends on your timeline, budget, and how much customization your project requires.
Drawing Package Details
What's Included in Your Scottsdale ADU Package
Engineered for AZ Permit Approvals
Transparent Pricing
Scottsdale ADU Drawing Costs — Compared
What homeowners typically pay for permit-ready ADU drawings in Scottsdale, 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 | $1,997 | 7 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 7-day turnaround
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 Scottsdale's building department requirements and AZ code. Delivered in 10 business days.
Submit to Your City
Download your complete drawing package and submit directly to Planning and Development. We support corrections at no extra charge.
Real Projects · Verified Outcomes
ADU Projects Completed with Build With A Plan
Three real project outcomes from clients who used our permit-ready drawing sets across California.
"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."
Client first names and last initials only. Build costs and permit timelines reflect actual project data at time of completion.
Building Code
Scottsdale Climate Zone & Energy Code
Arizona Energy Code (2021 IECC with local amendments); Scottsdale requires new construction to meet standards for roof solar reflectance, EV charging infrastructure, and solar-ready provisions.
Compare Cities
Scottsdale vs. Nearby Arizona Cities
Frequently Asked
Scottsdale ADU Questions
How much does it cost to build an ADU in Scottsdale? +
What is the maximum ADU size allowed in Scottsdale? +
How long does the ADU permit process take in Scottsdale? +
Do I need owner-occupancy to build an ADU in Scottsdale? +
What's the rental income potential for an ADU in Scottsdale? +
How much does it cost to get ADU drawings in Scottsdale? +
What drawings are included in the permit set? +
Can I convert my garage to an ADU in Scottsdale? +
What neighborhoods in Scottsdale are best for ADU investment? +
Is Scottsdale ADU-friendly? +
How much will an ADU increase my property value in Scottsdale? +
Can I use my Scottsdale ADU as a short-term rental (Airbnb / VRBO)? +
Scottsdale has a high HOA rate (35%) — do I need HOA approval for an ADU? +
Does Scottsdale's seismic zone affect ADU construction requirements? +
Where do I submit ADU plans in Scottsdale? +
More Services in Scottsdale
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