The numbers that matter in 85018
| Metric | Value | Basis |
|---|---|---|
| Median project cost | $350K | declared at permit |
| Real cost / sqft | $375 | grossed-up median |
| Median home value | $1.45M | Assessor FCV 2026 |
| Resale price / sqft | $605 | recorded sales |
What homeowners are actually building in 85018
Permit counts since 2020. Most homeowners pull permits for additions and ADUs — full scrapes are rare.
- Additions: 380 permits (livable square footage added)
- ADUs / Casitas: 95 permits (separate dwelling units)
- New builds: 110 permits (full scrape & rebuild)
- ADU-eligible lots: 96% (≥6,000 sf in this zip)
The houses we're working with in 85018
- Median year built: 1955 (84% built before 1980)
- Median lot size: 17,500 sf (96% large enough for an ADU)
- Median home value: $1,450,000 (Assessor Full Cash Value, 2026)
Data sources: City of Scottsdale residential building permits (2020–2026 YTD) joined to Maricopa County Assessor parcel records. "Real cost" figures gross up declared permit valuations by 1.35× to reflect industry-standard underreporting. Refresh: April 30, 2026. ExpandEase is calibrated on the actual square-foot economics of your zip code, not national averages.