Tiny & modular homes in Phoenix, AZ

Yes, when they are built for it. Before you buy a prefab tiny home for the Valley, check the listing and spec sheet for:

• High-R insulation in the walls and roof (spray foam is common)
• A ductless mini-split or heat pump sized for 110°F+ days
• Low-E, dual-pane windows, and roof overhangs or shading on west-facing glass
• A light-colored or reflective roof

Each ModelTown listing shows the heating and cooling system, so you can compare models before you ask the builder about desert-climate upgrades.

The terms overlap, but in Phoenix the difference that matters is how the home is built and placed:

• Tiny homes are usually under about 400 sq ft and are often built on a trailer. In Phoenix, homes on wheels are generally regulated like RVs, which limits full-time living on a residential lot.
• Small homes, mini homes and small houses usually mean compact homes of roughly 400 to 1,000 sq ft on a permanent foundation, such as modular homes and backyard ADUs. Built to Arizona code, these can serve as a primary home or an ADU.

If you plan to live in the home full time on a Phoenix lot, start with modular and ADU homes on a foundation.

ModelTown lists tiny homes for sale that can be delivered to Phoenix and the rest of the Valley, so you can compare builders side by side instead of visiting each one.

• Tiny homes on wheels: roughly 140 to 430 sq ft, from about $25,000
• Park models: roughly 200 to 530 sq ft, from about $80,000
• Modular homes and ADUs: roughly 200 to 1,300 sq ft, from about $105,000

Every listing shows the price, square footage and floor plan. Use the filters on this page to narrow by price, size and home type, then request info on a home to get a delivery quote to your Phoenix-area address. Delivery is priced separately and depends on how far the builder's factory is from your site.

It depends on how the home is classified and where it goes.

• Within Phoenix city limits, tiny homes typically must meet the International Residential Code (IRC), which excludes most tiny homes on wheels as primary residences
• ADUs (casitas) are now broadly permitted in many residential zones, but they generally require a permanent foundation
• Pinal County and unincorporated Maricopa County often allow more flexibility for THOW and modular placements
• Desert climate considerations include heat-resistant insulation, reflective roofing, and robust cooling design

ModelTown helps you find homes that match realistic placement scenarios in and around Phoenix, whether you're after an ADU, rural acreage, or an off-grid site.

Yes. The City of Phoenix has updated its zoning to allow casitas (ADUs) in most single-family residential districts. Important considerations include:

• Zoning district (R1-6, R1-8, R1-10, etc.) and lot size minimums
• Maximum ADU size, often capped around 1,000 sq ft
• Setbacks, height limits, and lot coverage
• Owner-occupancy and short-term rental rules, which continue to evolve
• Utility connections and whether separate service is required

Many prefab and modular homes on ModelTown are well suited to Phoenix casita use, but always confirm your specific lot before ordering.

The home itself is only part of the project. In the Phoenix metro, total cost typically includes:

• Home price: roughly $80K to $320K+ depending on size, finish, and cooling specs
• Slab foundation, generally cheaper than cold-climate foundations, but still site-dependent
• Site work such as grading, pad prep, and driveway access
• Utility hookups, affordable on serviced lots, but substantial in rural desert areas
• Permitting through the City of Phoenix or the relevant county

Cooling efficiency and proper ductwork matter more in Phoenix than in most markets, so the lowest sticker price isn't always the lowest total cost of ownership. ModelTown helps you compare options across the full picture.

Yes, and this is a popular path for buyers who want more land or fewer restrictions. Common options include:

• Rural Maricopa County areas like Buckeye, Wittmann, Wickenburg, and New River
• Pinal County, which is often more flexible for modular and tiny placements
• Yavapai County for higher-elevation, cooler sites
• Remote desert land for off-grid setups with solar, well, and septic

Arizona regulates factory-built homes through the Arizona Department of Housing, while counties and municipalities handle placement, setbacks, and utility approvals.

In most cases, yes. The Phoenix metro is one of the fastest-growing housing markets in the country, and that demand supports value for modular and prefab homes placed on owned land.

• Modular homes on permanent foundations are appraised similarly to site-built homes across Maricopa County
• Rapid population growth in Scottsdale, Mesa, Chandler, Gilbert, and Glendale continues to fuel rental and resale demand
• Energy-efficient prefab designs can command a premium given Arizona's high cooling loads

Tiny homes on wheels are generally titled as RVs and tend to depreciate more like vehicles than traditional real estate.