How much does a detached garage construction cost in Nashville?

A detached garage construction in Nashville typically costs $18,564-$55,692, 7% below the $35,000 national average.

What is the cost per sq ft for a detached garage construction in Nashville?

Detached Garage Construction in Nashville typically costs $32-$111 per sq ft.

How long does a detached garage construction take?

A detached garage construction typically takes 8-14 weeks. The minimum timeline is 6-8 weeks, and complex projects can run 4-6 months (complex builds with living space).

Can I DIY a detached garage construction?

DIY feasibility for a detached garage construction is rated Low - Detached garages require architectural or structural plans, building permits, concrete work, framing, roofing, and electrical. This is a significant construction project that most homeowners should hire a general contractor to manage, even if some components can be partially DIY..

Cost to Detached Garage Construction in Nashville, TN (2026)

If you’re budgeting a detached garage construction in Nashville, most projects run $18,564-$55,692, 7% below the $35,000 national average. What moves that number most is usually one thing: Size and Number of Bays. On its own it can swing the cost by $10,000 - $40,000, so that’s the decision to slow down on before you sweat the smaller stuff.

Easiest place to save: Get engineering plans done once and use competitive bidding to get the best framing price. Having your own plans lets you get apples-to-apples bids from multiple framing contractors.

$18,564-$55,692 in Nashville

7% below the national average · 0.93x cost multiplier

Homeowners in Nashville typically spend $18,564-$55,692 on a detached garage construction, about 7% below the national average. Labor rates and contractor availability in the Southeast region drive much of the price difference. Permit requirements and material delivery costs also play a role. See the full tier-by-tier breakdown below before requesting bids.

Cost Breakdown in Nashville

Line Item	Low	Mid	High
Cost per sq ft	$32	$56	$111
Materials	$9,750	$17,550	$34,125
Labor	$8,643	$13,829	$24,202
Permits	$1,170	$1,755	$2,438
Design	$488	$1,170	$3,413
Total	$20,051-8% vs. national avg	$34,304-7% vs. national avg	$64,178-7% vs. national avg

Budget

Basic 20x20 (400 sq ft) single-car detached garage - wood frame, T1-11 siding, asphalt shingles, concrete slab, one standard garage door, minimal electrical

Mid-Range

24x24 (576 sq ft) two-car detached garage - wood frame, LP SmartSide siding, architectural shingles, concrete slab, two garage doors, full electrical with subpanel, windows

Premium

24x36 (864 sq ft) carriage-style two-car garage with bonus room above - engineered lumber, shingle siding, metal roof, concrete slab with radiant heat, custom carriage doors, full electrical, plumbing rough-in

Material Options

Material prices below are national averages; availability in Nashville may shift costs slightly.

Material	Cost/Unit	Pros	Cons	Best For
Wood Frame with T1-11 Siding	$35 - $55 per sq ft	Lowest cost, widely available, easy to modify or repair	T1-11 requires regular painting, not as durable as engineered wood products	Budget builds where cost is the primary concern and the garage is utilitarianLowest cost, widely available, easy to modify or repair
Wood Frame with LP SmartSide	$45 - $70 per sq ft	More durable than T1-11, pre-primed, lower maintenance, better curb appeal	Higher cost than T1-11 but worth it for most applications	Mid-range builds that need to look good and last - the most popular choiceMore durable than T1-11, pre-primed, lower maintenance, better curb appeal
Concrete Block (CMU) or ICF	$55 - $90 per sq ft	Extremely durable, fire-resistant, pest-resistant, great sound deadening, higher perceived value	More expensive, heavier foundation required, less common in residential applications	Tropical climates (hurricane resistance), homes where fire separation is a concern, or workshop spacesExtremely durable, fire-resistant, pest-resistant, great sound deadening, higher perceived value
Steel Building Kit (Pre-Engineered Metal)	$25 - $50 per sq ft for shell	Lower cost for large structures, fast construction, very durable, low maintenance, clear-span interior	Industrial look, difficult to match home aesthetics, condensation issues without proper insulation	Rural properties, farms, or large workshop spaces where looks are secondary to functionLower cost for large structures, fast construction, very durable, low maintenance, clear-span interior
Carriage House / Custom Wood Siding	$70 - $120 per sq ft	High-end aesthetic, adds significant property value, highly customizable, can match any architectural style	Highest cost, requires experienced builder, more complex permitting	Premium properties where the garage is a visible architectural feature of the homeHigh-end aesthetic, adds significant property value, highly customizable, can match any architectural style

Other Projects in Nashville

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Full Bathroom Remodel

Composite Deck Building

Back to national average for Detached Garage Construction

Nashville Estimate

Typical Range

$18,564-$55,692

vs. National Average

7% below national

Cost Multiplier

0.93x

Cost Per sq ft

$32-$111

This 0.93x estimate prices Nashville labor from BLS Occupational Employment and Wage Statistics (May 2025) and applies a lighter regional adjustment to materials and permits, which vary less by metro than labor does. Actual bids vary by contractor, project scope, and timing.

See national average costs →