How much does a room addition cost in Franklin, TN?

The average room addition in Franklin, TN costs $119,595 in 2026. Costs range from $46,509 for a basic project to $265,767 for a high-end renovation. Franklin is 33% more expensive than the national average of $90,000.

What is the labor rate for contractors in Franklin?

The average contractor labor rate in Franklin, TN is $44.03/hour, compared to the national average of $30/hour. For a room addition, labor typically accounts for 50% of the total cost, which is approximately $59,798 in Franklin.

Are materials more expensive in Franklin?

Franklin has a material cost index of 119 (national average = 100). Materials cost about 19% more than the national average. For a room addition, materials account for 50% of the cost, approximately $59,798.

Do I need a permit for a room addition in Franklin?

Yes, a room addition typically requires building permits in Franklin, TN. The average permit cost in Franklin is $1,510. Always confirm requirements with the Franklin building department before starting work.

Is a room addition a good investment in Franklin?

A room addition provides an estimated 55% ROI nationally. In Franklin, where the median home price is $620,000, this project costs about 19.3% of your home value. This is a significant investment relative to home value — consider carefully whether the local market supports premium renovations.

Room Addition in Franklin, TN — Costs $46,509 to $265,767

What does room addition cost in Franklin? Average $119,595, ranging $46,509–$265,767. Labor runs $44.03/hr locally — 33% above the national average. Free breakdown with material + labor split.

Franklin, TN Market

+33% vs national

Labor Rate

$44.03/hr

Material Index

119

Avg Permit Cost

$1,510

Median Home Price

$620,000

In a smaller market like Franklin, Tennessee, the pool of contractors specializing in room addition may be more limited. Getting 3+ quotes is especially important to ensure fair pricing. At 33% above the national average, Franklin is one of the more expensive markets for home improvement — driven primarily by above-average labor rates in the region. With a median home price of $620,000, this room addition represents just 19.3% of typical home value — a relatively small investment that can significantly boost curb appeal or functionality.

Low Estimate

$46,509

National: $35,000

Mid-Range

$119,595

National: $90,000

High End

$265,767

National: $200,000

Per Sq Ft

$266

National: $200

Duration: 3-6 months

DIY: Hard

Permits: Required

ROI: 55%

Room Addition Cost Calculator for Franklin

Adjusted for Franklin's labor rate ($44.03/hr) and material costs (index 119).

Project Size: 200 sq ft

50 sq ft1,000 sq ft

Quality Level

Mid-grade materials, good quality fixtures, standard options.

Estimated Total in Franklin

$119,595

Based on 200 sq ft at mid quality, adjusted for Franklin market rates.

Local Cost Breakdown

Labor (50%)$59,798

At Franklin's average rate of $44.03/hr (47% above national avg)

Materials (50%)$59,798

Material cost index 119 (19% above national baseline of 100)

Room Addition vs. Home Value in Franklin

Metric	Franklin	National Avg
Room Addition (Mid-Range)	$119,595	$90,000
Median Home Price	$620,000	$350,000
Project as % of Home Value	19.3%	25.7%
Estimated ROI	55%	55%
Median Household Income	$98,000	$75,000

What Affects the Price in Franklin

1Local labor rates ($44.03/hr in Franklin)
2Material cost index (119 vs national 100)
3Square footage
4Foundation type
5Number of stories
6Roof integration

Popular Upgrades

Cathedral ceiling
En-suite bathroom
Walk-in closet

Other Projects in Franklin, TN

Second Story Addition

$265,767

HardROI 60%

Accessory Dwelling Unit (ADU) Construction

$199,325

HardROI 80%

Swimming Pool Installation

$84,569

HardROI 40%

Garage Addition

$73,086

HardROI 65%

Home Addition

$105,196

MediumROI 60%

Inground Swimming Pool

$83,667

HardROI 43%

Attic Conversion

$73,849

HardROI 64%

Swimming Pool Construction

$67,136

Professional OnlyROI 43%

Room Addition in Other Tennessee Cities

Nashville, TN

$85,260

-29%Pop. 689,447

Memphis, TN

$79,455

-34%Pop. 633,104

Knoxville, TN

$87,990

-26%Pop. 190,740

Chattanooga, TN

$78,720

-34%Pop. 181,099

Clarksville, TN

$88,860

-26%Pop. 166,722

Murfreesboro, TN

$87,495

-27%Pop. 152,769

Johnson City, TN

$97,110

-19%Pop. 71,046

Jackson, TN

$94,935

-21%Pop. 67,685

Planning a Room Addition in Franklin

Building permits are typically required for a room addition in Franklin. The average permit fee in this area is $1,510, though costs vary based on project scope. Permit fees in this market are above average — factor them into your total budget. Plan for 3-6 months from start to finish.

A room addition is a complex project best left to licensed professionals. In Franklin, skilled contractors charge an average of $44.03/hr, and the specialized nature of this work means cutting corners on labor can lead to costly rework.

With a median household income of $98,000, many Franklin residents can budget for this project through savings. The mid-range cost of $119,595 represents 122% of the typical household's annual income.

Room Addition — National Guide

See the full national cost guide with DIY tips, cost factors, and ROI analysis.

All Construction Costs in Franklin

View labor rates, material costs, and project estimates for Franklin, TN.

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