Cost to Build a Detached Garage
On February 16, 2025 By newsroom Topic: Home Services
Adding a detached garage can increase your property’s value and provide functional space. Here’s a detailed breakdown of the costs:
1. Total Cost
- Average Cost: $19,600
- Typical Range: $9,600–$40,000
- Low-End: $5,000
- High-End: $75,000
2. Cost by Garage Size
| Garage Size | Square Feet | Cost Range |
|------------------|----------------|-------------------------|
| 1 Car | 240–384 | $9,600–$26,900 |
| 2 Cars | 360–480 | $14,400–$33,600 |
| 3 Cars | 700–860 | $28,000–$60,200 |
| 4 Cars | 800–1,080 | $32,000–$75,600 |
3. Key Cost Factors
Foundation
- Concrete Slab: $4–$8 per sq. ft.
- For a 2-car garage: $1,400–$3,800.
Roofing
- Cost: $10,000–$20,000
- Per Sq. Ft.: $4–$5
- Materials range from aluminum (cheaper) to slate shingles (priciest).
Siding
- Cost Per Sq. Ft.:
- Stucco: $7–$9
- Vinyl: $3–$12
- Brick: $10–$20
- Stone: $7–$30
Doors
- Garage Door Cost: $750–$1,650
- Glass Doors: 200–300% more expensive.
Windows
- Cost Per Window: $200–$1,300
- Vinyl frames are cheapest, while custom wood frames cost more.
Labor
- Cost: $3,000–$15,000 or 60% of material costs.
4. Additional Features
| Feature | Cost |
|------------------|--------------------|
| Plumbing | $600–$1,600/fixture |
| Wiring | $1,000–$2,500 (up to $5,000 for complex jobs) |
| Insulation | $0.50–$1.25/sq. ft. |
| Interior Painting | $2.75/sq. ft. |
| Exterior Painting | $1.50–$4/sq. ft. |
5. DIY vs. Hiring a Pro
- DIY Cost: $5,000–$25,000
- Savings: $3,000–$15,000.
-
Risks: Mistakes, safety issues, and code violations.
-
Hiring a Pro:
- Cost: $8,000–$40,000.
- Advantages: Faster, up to code, structurally sound.
6. Tips to Save Money
- Opt for smaller square footage.
- Build closer to existing plumbing/electricity.
- Choose cost-effective materials (e.g., vinyl siding, steel doors).
- Minimize windows.
- DIY simpler tasks like painting.
- Get multiple quotes from contractors.
7. Detached vs. Attached Garage
- Detached Garages cost 10–15% more due to extra materials and labor.
- If far from the main house, expect higher plumbing and electrical costs.
Investing in a detached garage enhances functionality and boosts property value, making it a worthwhile addition.
