Picture two homes on the same downtown Franklin block. Similar footprint, similar age, listed within a few thousand dollars of each other. One seller hands over a folder before the first showing even ends: certificates of appropriateness going back a decade, permit numbers for the roof and the HVAC replacement, invoices for the masonry repointing done three summers ago. The other seller shrugs and says something was done to the place years back, nobody's sure exactly what.

From the sidewalk, the two houses look nearly identical. Once an offer gets written, they stop being the same asset. The gap between them, paperwork against no paperwork, is the real risk in buying or selling inside Franklin's Historic Preservation Overlay. It has less to do with what color you're allowed to paint the trim and more to do with whether your first renovation clears design review in six weeks or gets stuck for six months.

What Actually Triggers a Review

Franklin's Historic Zoning Commission, nine citizen appointees representing architecture, preservation, the planning commission, and the community at large, reviews exterior work on any property inside the Historic Preservation Overlay before it gets a building permit. That review, called a Certificate of Appropriateness, covers more than most buyers expect: new construction, additions like porches and decks, window and door replacement, siding or masonry alterations, roofing changes, dormers, awnings, painting previously unpainted masonry, fences and driveways, signs, and even visible mechanical equipment.

Not everything gets the full hearing. Work on rear or obscured facades that doesn't touch the footprint or roofline, like a non-historic window swap out of street view, can sometimes qualify for administrative approval instead of a full commission vote. The dividing line is visibility. If the change can be seen from the public right-of-way, plan on review.

That distinction matters before you write an offer, not after. A buyer who assumes a rear addition will slide through quietly because it's "in the back" is making a guess the commission doesn't have to honor.

The Meeting Before the Meeting

The part of this process that most buyers never hear about until they're already frustrated is the Design Review Committee, a smaller group pulled from the HZC that meets informally with applicants before a formal COA application goes in. Preservation staff and the DRC exist specifically to catch problems early: a proposed window style that won't pass, a setback that conflicts with the streetscape rhythm the commission is protecting. Getting that early input is optional on paper, but it's the step that prevents the formal application from bouncing back for a second round of drawings.

For a seller preparing to list, this cuts both ways. A completed addition that never went through DRC or COA review, even one that looks fine, is a documentation gap the next buyer's lender or inspector may ask about. For a buyer with renovation plans already sketched out, walking into the DRC meeting before closing, rather than after, is the difference between a design that gets a quiet nod and one that gets redrawn three times.

A Recently Reorganized Rulebook

Anyone working through this process right now is operating under a code that changed shape recently. Franklin's citywide Zoning Ordinance was readopted and took effect January 13, 2026, reorganizing the entire code into new chapters, including one dedicated specifically to historic resources. The substantive design standards the commission actually reviews against, the Historic District Design Guidelines, are a separate document that has been in effect since May 30, 2022 and still governs how the HZC weighs materials, proportions, and placement.

That split matters for due diligence. A permit or COA on file that cites an old chapter number from before January 2026 hasn't become invalid, but it does mean a seller's paperwork and the current code aren't necessarily organized the same way anymore. Confirming which version of the ordinance a past approval was issued under is a small check that avoids confusion later.

The Documentation That Changes the Timeline

This is the part that separates a smooth historic-district purchase from a stalled one. Before writing an offer on a property inside the overlay, or before listing one, this is what to have in hand:

A seller who can't produce most of this isn't necessarily hiding anything. Older transactions sometimes just didn't generate the paper trail buyers expect today. But the absence of documentation is itself information: it tells a buyer to budget more time and more caution into due diligence, not less.

Financing a Historic Purchase

If the plan involves buying and renovating in one move, FHA's 203(k) loan and Fannie Mae's HomeStyle product both let a buyer roll purchase and renovation costs into a single mortgage. Both come with extra steps most conventional buyers never deal with: additional lender documentation and draw inspections tied to the pace of the work, on top of whatever timeline the COA review adds.

Because a Certificate of Appropriateness can send a design back for revisions, it's worth building a 10 to 20 percent contingency into a historic renovation budget specifically to cover COA-driven changes, separate from the usual cushion for unexpected repairs.

The Inspection List Gets Longer

A standard home inspection covers the basics, but an older home inside the overlay usually calls for more. Settlement cracks, uneven floors, or signs of prior structural changes warrant a structural engineer's opinion. A termite and wood-destroying insect inspection is standard for houses of this age. Because of the 1978 lead paint cutoff, a lead-based paint risk assessment is worth requesting alongside the disclosure review, and if the renovation plan involves disturbing old plaster or trim, an asbestos survey ahead of time can save a change order mid-project.

None of this is unique to Franklin. What's specific to this market is how directly it interacts with the COA process. A structural fix that changes a roofline, or a window replacement flagged by the inspector, may itself need commission approval before it can be completed, which folds the inspection findings straight back into the review timeline.

The Number That Doesn't Tell You Enough

Different data providers price Franklin differently depending on how they draw the city's boundaries and which property types they include, so any single median figure is a rougher guide here than in a more uniform market. That range tells you almost nothing about what a specific historic-district purchase will actually involve, because two homes at the same price point can carry completely different documentation and review risk.

The commission's caseload is a reminder that this isn't a rare event. Public HZC agendas have included cases like new construction proposed for a Franklin Road parcel, a demolition and rebuild of an accessory structure on 5th Avenue South, and an addition project on Lewisburg Avenue, alongside administratively approved items like signage and awnings on other downtown parcels. Cases move through review continually. If you're buying or selling here, your project joins that same queue.

Historic character in Franklin clusters most heavily near Main Street and in neighborhoods like Hincheyville, while newer construction with fewer overlay restrictions tends to sit in the master-planned communities further out. Knowing which side of that line a specific address falls on, before falling in love with it, is the single most useful piece of due diligence available.

A Few Questions Worth Asking Before You Write an Offer

Does a COA apply to work that isn't visible from the street? Sometimes not. Minor alterations to rear or obscured facades that don't change the footprint or roofline can qualify for administrative approval. Visible work almost always goes to full review.

What if the seller can't produce past permits or COAs? It doesn't rule out the purchase, but it changes what due diligence should look like. Plan on a deed and easement check through county records and a closer inspection of any exterior work that looks recent.

Will a lender care that the property is in the overlay? Renovation-specific loans like FHA 203(k) or Fannie Mae HomeStyle add draw inspections tied to project progress. Combined with COA review timing, that means building extra time into any renovation-financed purchase.

Does this apply everywhere in Franklin? No. It applies specifically to properties inside the Historic Preservation Overlay, concentrated around downtown and neighborhoods like Hincheyville. Confirming overlay status on a specific parcel before writing an offer is a quick step that prevents a much longer one later.

If you're weighing a historic Franklin property, either as the buyer trying to understand what you're taking on or the seller trying to get your documentation in order before it hits the market, that's exactly the kind of groundwork Ashley Hicks walks clients through before the offer stage, not after. Reach out and let's connect.