Home Additions and Conversions

18 jobs we handle in Knoxville and across East Tennessee. Ranges shown for the Knoxville market — your ZIP may adjust them slightly.

Room additions

Room additions by Homefficient Renovations in Knoxville and East Tennessee. Written scope and price before work starts.

$5,000 – $25,000 per project1–4 weeks

Materials extra

Home Additions and Conversions

Bedroom additions

Bedroom additions by Homefficient Renovations in Knoxville and East Tennessee. Written scope and price before work starts.

$5,000 – $25,000 per project1–4 weeks

Materials extra

Home Additions and Conversions

Bathroom additions

Bathroom additions by Homefficient Renovations in Knoxville and East Tennessee. Written scope and price before work starts.

$5,000 – $25,000 per project1–4 weeks

Materials extra

Home Additions and Conversions

Kitchen additions

Kitchen additions by Homefficient Renovations in Knoxville and East Tennessee. Written scope and price before work starts.

$5,000 – $25,000 per project1–4 weeks

Materials extra

Home Additions and Conversions

Family-room additions

Family-room additions by Homefficient Renovations in Knoxville and East Tennessee. Written scope and price before work starts.

$5,000 – $25,000 per project1–4 weeks

Materials extra

Home Additions and Conversions

Sunroom additions

Sunroom additions by Homefficient Renovations in Knoxville and East Tennessee. Written scope and price before work starts.

$5,000 – $25,000 per project1–4 weeks

Materials extra

Home Additions and Conversions

Mudroom additions

Mudroom additions by Homefficient Renovations in Knoxville and East Tennessee. Written scope and price before work starts.

$5,000 – $25,000 per project1–4 weeks

Materials extra

Home Additions and Conversions

Laundry-room additions

Laundry-room additions by Homefficient Renovations in Knoxville and East Tennessee. Written scope and price before work starts.

$5,000 – $25,000 per project1–4 weeks

Materials extra

Home Additions and Conversions

Garage additions

Garage additions by Homefficient Renovations in Knoxville and East Tennessee. Written scope and price before work starts.

$5,000 – $25,000 per project1–4 weeks

Materials extra

Home Additions and Conversions

Garage conversions

Garage conversions by Homefficient Renovations in Knoxville and East Tennessee. Written scope and price before work starts.

$5,000 – $25,000 per project1–4 weeks

Materials extra

Home Additions and Conversions

Basement conversions

Basement conversions by Homefficient Renovations in Knoxville and East Tennessee. Written scope and price before work starts.

$5,000 – $25,000 per project1–4 weeks

Materials extra

Home Additions and Conversions

Attic conversions

Attic conversions by Homefficient Renovations in Knoxville and East Tennessee. Written scope and price before work starts.

$5,000 – $25,000 per project1–4 weeks

Materials extra

Home Additions and Conversions

Porch enclosures

Porch enclosures by Homefficient Renovations in Knoxville and East Tennessee. Written scope and price before work starts.

$700 – $4,500 per project1–4 days

Materials extra

Home Additions and Conversions

Screened-porch conversions

Screened-porch conversions by Homefficient Renovations in Knoxville and East Tennessee. Written scope and price before work starts.

$5,000 – $25,000 per project1–4 weeks

Materials extra

Home Additions and Conversions

In-law suite construction

In-law suite construction by Homefficient Renovations in Knoxville and East Tennessee. Written scope and price before work starts.

$5,000 – $25,000 per project1–4 weeks

Materials extra

Home Additions and Conversions

Accessory dwelling unit construction

Accessory dwelling unit construction by Homefficient Renovations in Knoxville and East Tennessee. Written scope and price before work starts.

$5,000 – $25,000 per project1–4 weeks

Materials extra

Home Additions and Conversions

Home-office conversion

Home-office conversion by Homefficient Renovations in Knoxville and East Tennessee. Written scope and price before work starts.

$5,000 – $25,000 per project1–4 weeks

Materials extra

Home Additions and Conversions

Bonus-room conversion

Bonus-room conversion by Homefficient Renovations in Knoxville and East Tennessee. Written scope and price before work starts.

$5,000 – $25,000 per project1–4 weeks

Materials extra

How these prices are calculated

Prices are estimated ranges for planning only. They are based on mid-to-high national cost data adjusted for your Tennessee market. Final pricing depends on access, existing conditions, materials chosen, and the scope confirmed on site.

In Tennessee, a contractor's license is required for most projects of $25,000 or more, and a Home Improvement license may be required for projects between $3,000 and $24,999 in counties that have adopted it. Electrical, plumbing, gas, HVAC, and structural work must be performed by the appropriate licensed trade, and many jobs require a permit and inspection from your local codes office.

Get an exact quote

Free written estimates from a licensed, insured Knoxville crew.

Request a free estimate Call (865) 440-0475