Nashville's North Shore — one of Middle Tennessee's fastest-growing counties — is navigating a pivotal moment in development fee policy. Here's what every developer needs to know before building here.
Sumner County is home to an estimated 215,071 residents as of 2025 — the 8th most populous county in Tennessee — growing at +1.6% annually and up more than 35% since the 2010 census. Anchored by Old Hickory Lake and positioned northeast of Nashville along I-65 and SR-109, the county has become one of the region's most active residential development markets.
The county contains approximately 97,457 housing units, with median sold home prices reaching $442,000 in late 2025 — up 6.3% year-over-year. The average single-family home spans roughly 2,000 square feet, a benchmark that matters directly for development cost planning, since Sumner County's Adequate Facilities Tax is levied on a per-square-foot basis. Active development across the county underscores the pace of growth — Gallatin alone is home to major projects such as the Nexus Tennessee mixed-use development (654 acres, 1,350 single-family lots, 900 multi-family units) and the Twin Ponds Subdivision (131 acres, 277 single-family lots), with national builders including D.R. Horton, Ryan Homes, and Meritage Homes maintaining consistent closing activity throughout the county.
Sumner County's development fee picture is rapidly evolving. The county's Adequate Facilities Tax (AFT) of $0.70 per square foot — established by Private Act in 1999 and earmarked exclusively for school construction — is currently the only county-level fee on new residential construction. The City of Hendersonville became the first municipality in Sumner County to adopt a standalone city impact fee, approving a $6,000 flat fee on new single-family residential construction in February 2026 — split between $4,000 for roads and $2,000 for parks — effective April 1, 2026. Meanwhile, Gallatin's own bid for impact fee authority was defeated in the 2025 legislative session. Developers active in Sumner County should account for Hendersonville's new fee and continue monitoring Gallatin closely.
This is an estimate only. Fees often change on an annual basis. Contact each municipality to confirm before finalizing your estimates. See an error? Report it here
Recent coverage on Sumner County's development fees, growth funding battles, and housing market impact.
After years of deliberation and failed attempts, Hendersonville's Board of Mayor and Aldermen approved a $6,000 impact fee on new single-family residential construction — split between $4,000 for roads and $2,000 for parks — in an eight-to-five vote. The fee takes effect April 1 and applies to residential builds only, with funds directed to the city's 10-year transportation and parks plans.
Read Full ArticleGallatin's effort to win state legislative approval for its own impact fee — a measure moving through the General Assembly in early 2025 — failed to pass. The bill's defeat leaves Gallatin continuing to rely on the county-wide Adequate Facilities Tax as the sole development fee mechanism for new residential construction within city limits.
Read Full ArticleSumner County commissioners warned that rapidly growing cities are annexing unincorporated county land and rezoning it for high-density residential development — leaving the county on the hook to fund new schools without a seat at the table. Commissioner Jeremy Mansfield urged lawmakers to authorize county-level impact fees and require county approval before cities annex and rezone rural land.
Read Full ArticleKey incorporated municipalities in Sumner County and their current development fee environment.
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