Three Boys Consulting LLC

ADU builder working in Nashville.

Nashville publishes no contractor license list we can check

8 ADU jobs on Nashville permits, 2025 to 2026. 7th most ADU permits of 59 contractors in Nashville.

Get a quote from Three Boys Consulting LLC

Do they work near you?

What the public records show

From the city's permits, one question at a time.

Question	Records show	Mark
Licensed?	Nashville publishes no contractor license list we can checkThat says nothing about this business either way.	Ask them
Jobs on record	8 ADU jobs on Nashville permits, 2025 to 2026Every permit we have for them is ADU.7th most ADU permits of 59 contractors in Nashville. That counts jobs, not quality.Our Nashville permit records cover September 2023 to September 2026.

Records: City of Nashville permits.

Cost and timing

All ADU jobs in Nashville: $37,000 to $128,000

Half of 753 city permits list an amount in this range. Permit amounts are often lower than what you pay.

Detached ADUs in Nashville: $37,000 to $128,000 (749 permits)

How to read this range

Contractors write a job value on the permit form, and the city uses it to set the permit fee. It is not the contract price, and it is often lower than what you pay. A quarter of the permits list less than this range, and a quarter list more. Use it to see if a quote is in the normal range.

Permit value (not a price)

Their typical permit lists $78,488 (half list more, half less)

That is the figure written on the permit form, which can be far from what you pay. What ADU jobs cost in Nashville.

Get 2 or 3 written quotes.

Permit wait

Across Nashville, ADU permits usually take 40 days to be issued

How long ADU jobs take.

Track record

3 jobs in the last 12 months, down from 5 the year before

Each bar is 3 months of permits. The tallest is 4 jobs, January to March 2025. Across Nashville, all contractors together had 45% more ADU jobs in the last 12 months than in the 12 months before.

Where they work most

370722 jobs
372052 jobs
370801 job
372211 job
371381 job

Latest jobs

Permit values are what the contractor wrote on the permit form, not what the owner paid.

Date	Work	ZIP	On the permit form
Sep 4, 2026	ADUTo construct a 40' X 40' (1600 SF) accessory structure to the rear of existing single family home	37080	$105,920
Jun 15, 2026	ADUTo construct a single-story 30' X 44' post frame structure located to the rear of an existing…	37221	$87,384
Jun 3, 2026	ADUTo construct a 2700 SF accessory structure to the side of existing single family home	37072	$178,740
May 12, 2025	ADUTo construct a Detached 30X40 Garage w/ 30X10 gable extension (1500 SF). No Plumbing and No…	37072	$72,450
Mar 31, 2025	ADUTo construct a 24' X 24' (576 SF) Detached Accessory Garage to the rear of existing single family…	37138	$27,821
Feb 19, 2025	ADUTo construct a dethatched accessory structure 20' X 40' (800 SF) with a front porch overhang of 20'…	37205	$46,368
Feb 13, 2025	ADUTo construct a dethatched carport 16' X 40 (640 SF) to the rear of existing single family home	37115	$30,912
Jan 17, 2025	ADUTo construct a 35' ft X 50' ft (1750 SF) Detached Accessory Garage	37205	$84,525

What to ask before you hire

About Three Boys Consulting LLC

Ask for their license number and check it with the state.
Ask what the warranty covers and for how long, in writing.
Search their name on the Better Business Bureau site, and read their reviews.

Worth asking any ADU builder

Can you show me proof of liability insurance and your bond?
Do you handle the plans, engineering and utility hookups, or do I?
How long from permit to the final inspection on your last three ADUs?
What is the payment schedule, and what is extra?

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