Historic Designation Reaches Further Than Most Owners Expect
Owners often assume historic district rules only govern what is visible from the street, like exterior paint or window replacement. In practice, many local preservation guidelines extend to character defining interior features as well, and original hardwood flooring frequently falls into that category in homes built before the early twentieth century. That distinction matters because it changes what a homeowner can do without review, not just what they are allowed to do at all.
This comes as a surprise most often during a renovation that was planned around modern assumptions, like a full gut and refloor. A contractor unfamiliar with the property's designation can start demolition before anyone realizes the original flooring was protected, which creates real complications with both the township and, in some cases, insurance or resale disclosures. Confirming designation status before any flooring work begins is a step too many owners skip.
Refinishing Is Almost Always the Safer Path
Where new installation or full replacement can trigger review, refinishing original material generally does not, since it preserves rather than alters the historic fabric of the home. This is one of the clearest practical reasons refinishing has become the default recommendation for owners of designated Main Line properties, separate from the cost and character arguments that apply to any historic home. A sand and refinish keeps the original boards in place while restoring their appearance, which sidesteps most of the friction that comes with replacement.
That said, refinishing historic hardwood is not the same process as refinishing a modern floor. Old growth boards can typically only handle a limited number of full sandings before the tongue and groove is compromised, and finishes appropriate to a home's period sometimes differ from standard modern products. An experienced contractor will know how many sandings a floor has likely already had and adjust the approach accordingly, rather than defaulting to a standard deep sand.
What Actually Requires Review Versus What Does Not
The specific threshold for what requires formal review varies by township and by the individual property's designation, which is exactly why this cannot be assumed from one Main Line home to the next. Generally, like for like repairs and refinishing existing material fall outside review requirements, while full replacement, material changes, or alterations to visible patterns like borders and medallions are more likely to require approval. Owners should never assume a project is exempt without confirming it directly.
The safest first step is a call to the relevant township historic commission before any contractor is hired, not after a scope of work has already been agreed to. This single call can save weeks of delay if a project turns out to need review, and it gives homeowners a clear answer instead of a guess before money changes hands.
Working With Contractors Who Understand the Difference
Not every flooring contractor has experience working within historic district constraints, and choosing one who does not can create real problems mid project. A contractor unfamiliar with these rules may recommend a full replacement as the default fix for a worn floor, simply because it is the more familiar and often more profitable job, without flagging that refinishing is both the compliant and often more cost effective choice for a designated property.
Ask directly about historic property experience before hiring, and ask to see examples of past work on similarly designated homes in the area. A contractor who has done this work before will already know to check designation status, understand sanding limits on old growth material, and can speak knowledgeably to what a township review process actually involves if one is required.
Planning a Flooring Project the Right Way
The owners who avoid delays are the ones who confirm designation status and review requirements before a project timeline is set, not after. This is especially important for anyone planning a renovation around a specific move in date or listing date, since an unexpected review process can add weeks that were not built into the original plan.
At Main Line Hardwood we work with Main Line homeowners regularly on designated and historic properties, and we can help you understand what your specific project will require before work begins. A short consultation upfront is a far better use of time than discovering a review requirement halfway through a job.
If your home falls within a historic district anywhere across Montgomery County, PA, Chester County, PA, Philadelphia, PA, Delaware County, PA, and Bucks County, PA, our team can help you plan a compliant, character preserving flooring project. Visit us at one of Devon, PA or contact us before your next renovation. Learn more about our hardwood refinishing services built for historic Main Line homes.
