Arizona Casita Builders helps homeowners throughout Arizona design and build high-quality Casitas with full permitting, no-cost proposals, custom floor plans, and 3D renderings.

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# Arizona Casita Cost Calculator

# Cost To Build A Casita In Arizona

Enter your current property value and the square footage of your existing home to estimate both the potential cost to build a high‑quality ADU and the additional equity it may create. This tool helps Arizona homeowners visualize the financial impact of adding a professionally built casita before requesting a proposal.

Property Inputs

## Start with your current property value and existing square footage.

Use the fields to estimate the current market value per square foot of your home. Once entered, this calculator estimates potential property value growth, estimated construction cost, and possible net equity for the casita size you would like to build.

Enter Your Property Details
Property Value
Existing Home Sq Ft
Desired Casita Size
As you type, commas are added automatically and all projections update instantly below.
Typical Casita Sizes
Equity Forecast

## What a new Casita may add to your overall property value.

Based on your current estimated property value and existing square footage, the calculator below estimates the added value a new casita may create along with an estimated build cost based on the average pricing for high‑quality ADU construction completed by Arizona Casita Builders.

Estimated Equity Gain at 600 Sq Ft
$203,116

Estimated added property value based on a 600 square foot ADU using your current value per square foot.

### Property Snapshot

Current Home Value$717,000
Current Livable Space 2,118 sq ft
Estimated Market Value / Sq Ft$338.53

### Casita Scenario Based On Your Input

Desired Casita Size 600 sq ft
New Total Livable Space 2,718 sq ft
Estimated Value Added$203,116

### Estimated Construction Cost

Average Cost Per Sq Ft Used$250.00
Estimated Build Cost$150,000
Estimated Net Equity After Cost$53,116

### Property Value Growth

This visual compares your current property value with the projected value after adding the ADU size you entered above, along with the estimated value added by that new space.

$717,000
Current Value
$920,116
Value With 600 Sq Ft ADU
+$203,116
Estimated Value Added
This forecast is illustrative and based on the current estimated value per square foot of the existing home. Estimated construction cost reflects an average price for a high‑quality ADU build by Arizona Casita Builders. Our builds typically include 2x6 structural framing rather than standard 2x4 construction, full spray foam insulation (approximately 8 inches at the roof deck and 5.5 inches in exterior walls), energy‑efficient Low‑E windows, high‑quality HVAC systems, modern flooring, premium fixtures, engineered plans, structural shear construction, and full permitting. Actual costs may vary depending on finishes, excavation conditions, utility requirements, site accessibility, and changing material costs.

### Estimated Net Equity Meter

Casita Value Forecast
$53,116
Estimated added property value and estimated build cost based on the ADU size entered above.

### Estimated Rental Income Potential

Based on a 600 sq ft casita, estimated monthly rental income may range from $1,500 to $2,100 per month depending on location, finishes, amenities, parking, and market demand. That equates to approximately $18,000 to $25,200 in potential annual rental income.

### Why This Can Be Helpful

Based on the property details entered above, an ADU of 600 sq ft may add approximately $203,116 in estimated property value. Using an estimated average build cost of $250.00 per square foot, the projected construction cost would be about $150,000, which may result in approximately $53,116 in estimated net equity. This estimate assumes a high‑quality ADU built to the standards used by Arizona Casita Builders. Our team manages the entire process including engineering, permitting, and coordination with local municipalities. We also provide no‑cost consultations, custom proposals, and 3D renderings so homeowners can clearly visualize their project before construction begins.

### What’s Typically Included In An Arizona Casita Builders Casita

Unlike basic backyard structures, our casitas are designed as full‑quality living spaces built to the same standards as a primary home. Typical projects include:

- 2×6 structural wall framing for stronger construction and better insulation performance
- Full spray foam insulation — approximately 8" at the roof deck and 5½" in the exterior walls
- Energy‑efficient Low‑E windows designed for Arizona climates
- High‑quality HVAC systems sized specifically for the casita
- Modern flooring, cabinetry, fixtures, and interior finishes
- Engineered structural plans and professional design coordination
- Full structural shear construction for strength and durability
- Permits, plan review, and coordination with city or county municipalities
- Professional project management from concept through completion
- Optional 3D renderings so you can visualize your casita before construction begins

This calculator uses an estimated construction cost based on the type of high‑quality ADU builds completed by Arizona Casita Builders. Actual pricing may vary depending on finishes, site conditions, excavation requirements, utility connections, and material costs.

Creates a clean equity report you can save as a PDF.

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