Not every addition needs to connect to the house to feel like it belongs.

This Glendale, AZ project involved a detached garage addition designed to fit the property both functionally and visually. With grading and drainage playing a key role, the structure was carefully positioned to work with the site’s elevation and natural water flow. The result is a clean, functional space that feels intentional, integrated, and built to perform as part of the overall property.

Project Overview

  • Project Type: Detached Garage
  • Size: 427.50 sq. ft
  • Location: Mesa, AZ
  • Use: Workshop, entertaining area
  • Connection: Stand Alone Structure
  • Year Built: 2023
$0
Approximate Total Project Cost
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Approximate Cost Per Square Feet

What This Cost Included

This project cost included the full scope of design coordination, engineering, and permitting required for a detached garage addition and associated grading and drainage improvements in Glendale, Arizona.

Construction costs covered all major phases of the build, including site preparation, earthwork, grading, and drainage modifications to accommodate the new structure, along with concrete foundation work, rough carpentry, roof framing, roofing, exterior finishes, insulation, drywall, and finish carpentry.

Structural work included construction of a standalone building designed to align with the existing property layout, including coordination of elevations and placement to ensure proper site integration.

Mechanical, plumbing, and electrical systems were installed as required to support the new space, including utility routing and connections coordinated with the existing property.

Exterior and site improvements included grading and drainage control to direct water flow away from the structure and maintain long-term performance of both the new addition and surrounding property.

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

Description Final Cost Price per sq. ft
Termite $250.00 $0.58
Concrete $12,248.81 $28.65
Rough Carpentry $22,625.82 $52.93
Mechanical Rough In  $2,000.00 $4.68
Electrical Rough In $6,838.98 $16.00
Windows, Glass & Glazing $1,402.09 $3.28
Insulation $2,500.00 $5.85
Stucco/Siding $8,600.00 $20.12
Drywall $3,850.00 $9.01
Painting $3,575.00 $8.36
Dumpsters $1,625.40 $3.80
Equipment Rentals $2,395.52 $5.60
Misc. $165.00 $0.39
Engineering & Professional Services $5,350.00 $12.51
Supervision $600.00 $1.40
Subtotal $74,026.62  
Overhead Profit (20%) $14,805.32  
Grand Total $88,831.94 427.5 sq. ft
Cost per sq. ft.   $207.79

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.

Before and After

Plans

Gallery