Attached Casita Addition in Glendale AZ

This 280 square foot attached casita addition in Glendale AZ was designed to create a private bedroom and bathroom guest suite while remaining fully connected to the main home. The homeowners wanted a dedicated space for guests that offered privacy, comfort, and flexibility without the complexity of building a detached structure.

The result is a compact but thoughtfully planned suite that blends seamlessly with the existing home, both inside and out.

Project Overview

Project Type: Attached casita addition
Size: Approximately 280 square feet
Location: Glendale, Arizona
Use: Private bedroom and bathroom guest suite
Connection: Fully attached to main residence
Year Built: 2025

Cost Breakdown

Approximate Total Project Cost

Approximate Cost Per Square Feet

What This Cost Included

This project cost included the full scope of design coordination, engineering, and permitting required for an attached casita addition in Glendale, Arizona.

Construction costs covered all major phases of the build, including demolition, foundation work, framing, roofing, exterior stucco, insulation, drywall, and finish carpentry to create a complete and livable space.

Mechanical, plumbing, and electrical systems were installed in both rough-in and trim-out phases to support a fully functional private bedroom and bathroom guest suite.

Interior finishes included flooring, countertops, cabinetry, doors, painting, and final trim details to complete the space.

Project management, general conditions, overhead, and contractor profit were included to coordinate the work, manage scheduling, and deliver the project from start to finish.

View Detailed Cost Breakdown for This Project

Scope	Cost
Demolition	$1,038.80
Termite Treatment	$411.60
Concrete	$7,380.80
Rough Carpentry	$10,900.40
Roofing	$2,536.80
Mechanical – Rough In	$1,184.40
Plumbing – Rough In	$3,992.80
Electrical – Rough In	$6,031.20
Windows, Glass & Glazing	$1,534.40
Insulation	$1,033.20
Stucco / Siding	$9,035.60
Drywall	$2,671.20
Tub / Shower Surround	$3,374.00
Doors, Frames & Hardware (Installed)	$1,870.40
Painting	$2,296.00
Finish Carpentry & Cabinets	$2,458.40
Countertops	$1,058.40
Flooring	$2,030.00
Baseboards	$411.60
Mechanical – Trim Out	$422.80
Plumbing – Trim Out	$462.00
Electrical – Trim Out	$803.60
Tree Removal, Landscape & Irrigation	$952.00
Subtotal – Direct Costs	$63,890.40
General Conditions (2.5%)	$1,597.26
GC – Insurance & Project Management (5%)	$3,194.52
Contractor – Overhead & Profit (20%)	$12,778.08
Subtotal – Indirect Costs	$17,569.86
Total Project Budget	$81,460.26

Costs shown reflect actual construction costs for this project at the time it was built. Pricing varies based on scope, finishes, site conditions, and market factors.

Plans and Design

The attached casita was designed as a compact but fully functional guest suite, providing a private bedroom and bathroom while remaining connected to the main home. The layout prioritizes privacy and comfort while maintaining efficient circulation within a limited footprint.

Because the casita is attached, special attention was given to structural integration, rooflines, and mechanical systems to ensure the addition blends seamlessly with the existing home and functions as a natural extension of the space.

While the casita was in the design and permitting phase, our team was also completing a full home remodel at this property, allowing both projects to be coordinated thoughtfully.