Knoxville Apartment Boom Pours $2.4 Billion Into County As Multi‑Family Permits Soar

Knox County did not exactly take a breather in 2025. A new 2025 Development Activity Report from Knoxville‑Knox County Planning tallies roughly $2.4 billion in construction investment and nearly 6,000 permitted units countywide, with multi‑unit housing approvals now outpacing single‑family lots by more than two to one.

What the report found

According to Knoxville‑Knox County Planning, overall building activity climbed about 4 percent in 2025, bringing total permitted units, residential and non‑residential combined, to 5,985. Of those, 5,822 were residential units, including 3,519 multi‑unit residential permits that helped push total investment to about $2.4 billion for the year.

Where development happened

Northwest Knox led the county in permitted units, with Central City coming in second. Large apartment complexes such as Icon Apartments and Legends at Hardin Valley played an outsized role in those multi‑family totals, as reported by The Knoxville Focus. The report also notes that growth is no longer confined to the traditional northwest and southwest corridors, with northeast and east Knox County seeing more activity too.

Rezoning and lot trends

The planning data show that residential acreage rezoned dropped to about 463 acres in 2025, a roughly 54.7 percent decline from the 1,023 acres recorded in 2021, while non‑residential rezonings totaled about 229 acres in 2025. Subdivision approvals created 1,905 new lots last year, and average new lot sizes tightened to roughly 0.5 acre outside the city and about 0.33 acre inside Knoxville, according to Knoxville‑Knox County Planning.

What this means for neighborhoods

Planners say the county’s pivot toward denser, multi‑unit development is set to change which kinds of projects show up in neighborhoods and along main corridors, and it is already prompting questions about traffic, school capacity, and utility infrastructure. Staff and commissioners have been tracking those trends at public meetings, and commission materials outline how rezonings and subdivision approvals are driving growth pressures in outlying areas, as shown in documents from Knoxville‑Knox County Planning.

Full copies of the 2025 Development Activity Report and its supporting tables are available through local coverage and Planning’s publications. For the report and accessibility requests, see the write‑up by The Knoxville Focus or contact Aubrey Weiland at [email protected] or 865‑215‑3832.