Every real estate contract in Tennessee runs on a 30 to 45 day clock. Financing, inspection, appraisal, closing. Inside Franklin's Historic Preservation Overlay, that clock is not the one that decides whether a deal closes on time. A second calendar, one that has nothing to do with your lender or your title company, sits underneath it. The Historic Zoning Commission meets once a month. Miss its window and the repair, the paint job, the porch rebuild your contract assumes will be done in two weeks now waits for the next meeting.
Contractors who work inside the historic core describe the same pattern over and over. A homeowner plans a routine exterior repaint, assumes it runs like any other job in Williamson County, and then learns partway through that the paint color has to go through the city before a brush touches the siding. The project stops. That is not a rare surprise. It is baked into how the district is set up, and it is the single biggest risk buried in a downtown Franklin contract that neither the purchase agreement nor most home inspection reports will flag.
Two Calendars, Only One of Them Shows Up in the Contract
If you buy or sell a house in Franklin's Historic Preservation Overlay, the district that includes the Victorian-era homes lining Adams Street and Lewisburg Avenue and the larger estates along Franklin Road, any exterior change to the building, additions, new porches, dormers, window or door replacement, siding or masonry work, has to clear a Certificate of Appropriateness (COA) from the city's Historic Zoning Commission before a permit is issued. The commission is a nine-member citizen board, and it reviews those requests against the city's Historic District Design Guidelines and the Secretary of the Interior's Standards for Rehabilitation.
That review does not happen on demand. The HZC meets monthly, and an application has to be submitted at least five working days ahead of the meeting to land on the agenda. If your submission misses that window, or if the commission returns it with conditions instead of an approval, the project does not resume next week. It waits for the following month's meeting.
Run that against a real closing timeline. A buyer's inspection turns up peeling siding or a rotted window sash on the street-facing elevation of a Victorian on Lewisburg Avenue. The repair addendum gives the seller three weeks to fix it before closing. Anywhere else in Williamson County, a contractor books the job and it's done. Inside the HPO, that three-week repair first needs a COA, which means it needs to make the next HZC meeting, which means the actual timeline from walkthrough to finished work commonly runs closer to 60 to 90 days once you account for prepping the application, waiting for the meeting, and then scheduling the crew. A local painting contractor who works this process regularly describes the full arc, from initial spec to a finished repaint, spanning roughly twelve weeks when the COA is part of the job.
The closing date on the contract was never the constraint. The HZC's next meeting date was.
What Actually Triggers a Review, and What Doesn't
Not every project in the historic district needs to go before the full commission. The distinction matters because it changes how much runway a seller or buyer actually has.
Generally requires a COA:
- New construction, additions, or demolition
- Window and door replacement on any facade visible from the street
- Siding, masonry, or roofing material changes
- New porches, dormers, and most site changes visible from the public right of way
Sometimes handled administratively, without a full HZC hearing:
- Minor alterations to non-historic components on rear or obscured facades, as long as the work doesn't touch the footprint or roofline
- Some repairs that match existing material and don't change the building's appearance
The rule of thumb worth remembering: if it can be seen from the street, plan on review. If it's tucked in the back yard and doesn't change the shape of the building, there's a real chance it can move faster. A homeowner considering work should confirm with Emily Huffer, the city's Preservation Planner, before assuming either way, since the line between the two categories is judgment-based, not automatic.
The Paper Trail That Surfaces at the Worst Time
The COA requirement doesn't only affect work you plan to do. It affects work someone already did, sometimes decades before you owned the house.
A prior owner who replaced original windows or painted an unpainted brick facade without ever filing for a COA created something that looks fine from the curb but is technically out of step with the overlay. That kind of history tends to surface exactly when you don't want it to: during a listing prep walkthrough, or during a buyer's due diligence, when a contractor or inspector asks whether prior exterior work was permitted and approved.
Tennessee's Residential Property Disclosure Act requires sellers of one to four unit residential property to provide either a disclosure statement describing known material defects or a disclaimer statement, and a buyer can only waive the disclosure requirement if the seller provides that disclaimer instead. The seller's obligation runs on actual knowledge, not on an independent investigation, so a seller who genuinely doesn't know a previous owner skipped the COA process isn't required to go dig up historic permit files to find out. But real estate licensees carry a separate, broader duty under the Tennessee Real Estate Broker License Act to disclose adverse facts they actually know about, regardless of what the seller's own form says. If unpermitted exterior work is discovered and known before closing, it becomes a fact the transaction has to deal with, not a detail that quietly stays in the walls.
For buyers, the practical move is to ask directly, before writing an offer, whether any past exterior work in the HPO was completed with a COA on file with the city. For sellers, especially ones who inherited work done by a previous owner, it's worth checking the city's permit and COA history for the address before it becomes a question raised mid-contract.
The Rulebook Changed This Year
Franklin adopted a complete rewrite of its zoning ordinance, effective January 13, 2026. Historic district review now sits in its own dedicated chapter, Chapter 18, Historic Resources, within that new code, alongside a separate chapter on review bodies that lays out the HZC's authority. Older blog posts and even some contractor guidance still reference the pre-2026 code structure. If you're relying on anything written before this year to understand how the process works, treat it as a starting point rather than the current rulebook, and confirm the specifics against the current ordinance or with the city's Preservation staff before you build a repair timeline around it.
What This Means for Price
In the 12 months ending in mid-2026, Downtown Franklin's historic core recorded 401 closed sales with a median price of $675,000 and an average of $926,957, tracked through the regional MLS. That price reflects walkability, architecture, and proximity to Main Street. It does not reflect the calendar risk that comes with owning a house where exterior repairs run on a monthly review cycle instead of a contractor's open schedule.
That distinction matters for both sides of a transaction. A seller pricing a home with known exterior deferred maintenance should factor in that a buyer's repair addendum inside the HPO can't move as fast as it would three miles away in Cool Springs, which affects how realistic a short repair timeline actually is. A buyer comparing a turnkey historic property against one that needs visible exterior work should treat the COA calendar as a real cost, measured in months of carrying costs and delayed occupancy, not just a bureaucratic footnote.
Frequently Asked Questions
Does every exterior repair need a Certificate of Appropriateness? Not every one. Repairs on rear or obscured facades that don't change the footprint or roofline can sometimes be handled administratively. Anything visible from the street, and anything involving new construction, additions, or material changes, should be assumed to need full HZC review.
What if I find out prior exterior work was done without a COA? Confirm what you know, then treat it as a fact to address in the transaction rather than something to leave undisclosed. Buyers should ask about COA history before writing an offer. Sellers should check the city's permit and COA records for the address if they suspect past work wasn't approved.
Can I sell as-is to avoid dealing with the repair timeline entirely? Tennessee allows a seller to provide a disclaimer statement instead of a full disclosure statement, but only if the buyer agrees to waive the disclosure. That doesn't eliminate the underlying condition of the property or any COA history tied to it. It shifts how the information gets communicated, not whether the historic district's rules still apply to future work.
Does the federal historic tax credit help offset renovation costs? The 20 percent federal Historic Rehabilitation Tax Credit applies to certified historic buildings used for income-producing purposes. It generally does not apply to an owner-occupied primary residence, so most buyers renovating a historic home to live in it shouldn't plan around it.
Buying or selling inside Franklin's historic core rewards someone who treats the HZC's calendar as part of the transaction timeline from day one, not a surprise that shows up after the inspection period closes. If you're weighing a historic Franklin property, on either side of the transaction, Karen Wanamarta & Partners can walk through what a realistic timeline looks like for your specific address before you're locked into a contract that assumes it doesn't exist. Schedule a Consultation to talk through the details before you write or accept an offer.
