How much does deck addition cost in Knoxville?
Knoxville, TN · Knox County · 17 ZIP codes · Data updated May 2026
A deck addition in Knoxville typically costs $11,379 - $30,386, with most homeowners paying around $22,599. Knoxville runs about 28% above the Tennessee median, and quotes can vary up to 97% between its cheapest and most expensive ZIP codes, so the neighborhood matters as much as the contractor.
It's a strong investment here: homeowners in this region recoup roughly 71% of the cost at resale, about $16,090 on a typical Knoxville job.
November is off-season-demand season for deck addition in this climate. Contractors in Knox County are booking about 1.5 weeks out, and rates run about 18% below the annual average, a good window to book.
Knoxville Cost Range
$11,379 - $30,386
Typical: $22,599
Strong ROI
Equity Gain
$16,090
Added at resale
on a typical Knoxville job
Off-Season season · ~1.5 wk contractor lead time
Deck Addition Cost by ZIP Code in Knoxville
Each ZIP gets its own estimate from local home values and labor rates. Open yours for the full breakdown, seasonality, and ROI detail.
| ZIP | Estimated range | vs. city average | Details |
|---|---|---|---|
| 37915 | $11,379 - $15,396 | -41% | Full estimate → |
| 37914 | $14,074 - $19,042 | -27% | Full estimate → |
| 37917 | $14,374 - $19,447 | -25% | Full estimate → |
| 37912 | $16,021 - $21,675 | -17% | Full estimate → |
| 37921 | $16,171 - $21,878 | -16% | Full estimate → |
| 37920 | $17,818 - $24,106 | -7% | Full estimate → |
| 37918 | $18,416 - $24,916 | -4% | Full estimate → |
| 37924 | $18,716 - $25,322 | -3% | Full estimate → |
| 37909 | $20,962 - $28,360 | +9% | Full estimate → |
| 37938 | $21,561 - $29,170 | +12% | Full estimate → |
| 37923 | $22,309 - $30,183 | +16% | Full estimate → |
| 37902 | $22,459 - $30,386 | +17% | Full estimate → |
| 37916 | $22,459 - $30,386 | +17% | Full estimate → |
| 37919 | $22,459 - $30,386 | +17% | Full estimate → |
| 37922 | $22,459 - $30,386 | +17% | Full estimate → |
| 37931 | $22,459 - $30,386 | +17% | Full estimate → |
| 37932 | $22,459 - $30,386 | +17% | Full estimate → |
Frequently Asked Questions
How much does a deck addition cost in Knoxville?
Based on 2026 data, a deck addition in Knoxville, TN costs $11,379 - $30,386, with a typical price around $22,599. The range covers Knoxville's 17 ZIP codes and the ±15% variance between contractor bids.
Is a deck addition worth it in Knoxville?
Homeowners in this region typically recoup about 71% of the cost at resale, roughly $16,090 on a $22,599 project. That makes it one of the stronger-returning projects you can do here.
Why do deck addition quotes vary across Knoxville?
Local home values and labor rates differ by ZIP code. In Knoxville, the same project can cost up to 97% more in the most expensive ZIP than in the least expensive one. Check your exact ZIP below for a precise range.
Other Project Costs in Knoxville
Sources: Remodeling Magazine Cost vs. Value, Zillow ZHVI, BLS construction wages, US Census. Methodology