Arizona's 2024 ADU law applies to cities and towns with more than 75,000 residents. Paradise Valley is far smaller, so it is not required to adopt the state ADU standards. Accessory buildings and guest houses there follow the Town of Paradise Valley's own zoning ordinance and hillside rules.
What kind of lots does Paradise Valley have?
Mostly large ones. The town's low-density R-43 zoning is roughly one home per acre (43,560 sq ft), and that category covers about two-thirds of the town's land use plan, according to a December 2023 report on the general plan. Room is rarely the problem. View lines, slope and neighbors' sightlines usually are.
What changes on a hillside lot?
Paradise Valley has separate hillside development regulations and a Hillside Building Committee that reviews projects on designated hillside property. On Camelback or Mummy Mountain slopes, that review can shape a guest house's height, grading and placement as much as the zoning does. We check whether your parcel carries the hillside designation during the lot check.
Can a Paradise Valley guest house be rented?
It depends on the town's current rules and on your deed restrictions. Paradise Valley is not bound by the long-term rental protection in the 2024 ADU law, while short-term rentals everywhere in Arizona are shaped by a separate state statute, A.R.S. § 9-500.39, that limits how towns regulate them. We confirm the current rules with town staff before you design around rental income.
What usually matters on a Paradise Valley lot?
- Town review. Plans go to the Town of Paradise Valley, not the City of Phoenix or Scottsdale, even with a Phoenix or Scottsdale mailing address.
- Septic and utilities. If the property is on septic rather than sewer, system capacity becomes part of the plan, and long runs across an acre add cost.
- Architecture. Many owners want the guest house to match a custom main home closely, which raises finish costs.
- Private covenants. Some subdivisions carry their own deed restrictions on accessory buildings.