Detached Garage Construction · Auburn · Opelika · Lake Martin

Custom Garage Construction in Auburn, AL

Upscale Workshop Spaces with Zero Guesswork

Custom detached garages, workshops, and garage-bonus combinations for Auburn, Opelika, Lake Martin, and Alexander City homes.

Licensed AL Residential GC · NAICS 236118 Based in Auburn, AL 256-749-6262
Project Photo · 16:9 hero of completed detached garage construction
01 — Overview
What We Build

Detached Garage Construction Done Right

A detached garage is a building project, not a remodel. New slab, new framing, new roof, new electrical service, often new septic or stormwater considerations depending on the site. It needs to be approached like the small custom build it actually is.

Old Number One Customs builds detached garages across Auburn, Opelika, Lake Martin, and Alexander City — straight garages, garages with workshops, and garages with finished living space above for guest suites or home offices.

02 — Scope
Project Types

Configurations We Build

Two-car detached garages

Standard two-bay detached garages, typically 24x24 or 24x28, matched to the existing home's exterior.

Three- and four-car garages

Larger detached garages with side workshop bays, often 30x40 or larger, for owners with multiple vehicles, boats, or equipment.

Garage with bonus above

Finished space above the garage — guest suite, home office, gym, or rental ADU. Includes separate HVAC zone and stair detailing.

Workshop garages

Detached buildings with dedicated workshop bays, dust collection rough-in, 220V circuits, and reinforced slab for equipment.

Boat & RV garages

Larger door openings (10-14 ft tall) for boat trailers and RVs — common on Lake Martin properties.

Carriage-style garages

Architectural detached garages with carriage doors, dormers, cupolas, and finish-level matched to higher-end homes.
Service Area

Serving East-Central Alabama

Old Number One Customs serves homeowners across Lee County, Tallapoosa County, and the Lake Martin region. Most of our work is within 60 minutes of our Auburn office.

  • Auburn
  • Opelika
  • Lake Martin
  • Alexander City
  • Lee County
  • Tallapoosa County
03 — FAQ
Common Questions

What Homeowners Ask

How much does a detached garage cost in Auburn, AL?

A basic two-car detached garage in the Auburn-Opelika market runs $55,000 to $95,000. Garages with finished space above run $150,000 to $280,000 depending on size and finish level. Use the configurator for a tier-based estimate.

How long does a detached garage take to build?

Eight to twelve weeks for a basic detached garage from slab pour to final. Sixteen to twenty-four weeks for a garage with finished living space above due to the added trades and inspections.

Do I need a permit for a detached garage?

Yes. Detached garages require a building permit and inspections in Auburn, Opelika, and unincorporated Lee County. We pull the permit and handle inspections. Lake Martin builds may also need Alabama Power shoreline coordination.

Can the finished space above the garage be a rental?

It depends on the local zoning and any HOA restrictions. We can build it as a guest suite or as a rentable ADU, but rental use requires verification against the property's zoning. We check before the design is finalized.

Can you build a detached garage on a Lake Martin property?

Yes. Lake Martin garages often need to account for sloped sites and shoreline setbacks. We coordinate with Alabama Power on any shoreline-adjacent site work.
Start Your Project

Get a Tier-Based Estimate

Use our project configurator for a real-time estimate scoped to your address, project type, and finish level. No sales call required to see a number.
Design Your Project Call 256-749-6262