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Samantha Mallon

Local Guides

Selling a Home in Glen Mills or Chadds Ford, PA: Six Forms on One Side of Route 1, None on the Other

Concord Township (Glen Mills) requires a resale certification built from six original forms, including a township sewer lateral inspection and three safety affidavits, with a mandatory sewer connection rule for homes within 150 feet of a line. Chadds Ford Township requires no resale certificate. Explained.

By Samantha Mallon, SRES®, licensed in PA & NJ · Reviewed July 31, 2026 · 7 min read

Glen Mills and Chadds Ford share the Route 1 corridor, the Brandywine views, and a buyer pool heavy with downsizers, and they disagree completely about what a seller owes the township. Concord wants six original forms, a sewer lateral inspection by its own department, and an appointment to hand it all in. Chadds Ford wants nothing beyond the paperwork any Pennsylvania sale requires.

The Route 1 corridor picture

Concord Township, which covers most Glen Mills addresses, has spent two decades filling in with 55+ communities and carriage homes alongside its estate lots, all in Garnet Valley schools. Chadds Ford is smaller and quieter, Unionville-Chadds Ford schools, historic districts, wells and septic on many parcels. Both trade at a premium, and both reward sellers who handle the municipal step, or confirm there is none, before the sign goes up.

Concord: six original forms

The township’s resale certification page lists the packet, all originals, returned together with payment:

  • The application itself, under Chapter 90 of the township code.
  • The sewer document: a public sewer lateral inspection report, performed by the Concord Township Sewer Department under Ordinance 338, or the on-site septic questionnaire for private systems.
  • Three affidavits: visible address numbers, smoke and carbon monoxide alarms, and swimming pool and spa safety.
  • The sewer rental fee certification for properties on public sewer or connecting to it.

The Chadds Ford side

Chadds Ford’s permit list ties certificates of use and occupancy to building projects, not home sales, so a resale closes without a township inspection. The scrutiny moves to the systems and the districts: wells and septic run through the Delaware County Health Department, buyers test both, and exterior work on homes in the township’s historic districts goes through architectural review, which is worth knowing before a pre-listing facelift. Sellers in HOA communities also owe the state-required association resale certificate, ordered from the HOA, not the township.

The Pennsylvania money

Both townships sit at the standard 2% total realty transfer tax, customarily split, so the seller’s half on an $800,000 sale is $8,000. Pennsylvania withholds nothing at settlement, and long-tenured owners here routinely clear the federal exclusion, $250,000 single, $500,000 married, making improvement records worth assembling. The home-sale tax guide and the cost-to-sell guide carry the detail.

Getting started

The corridor order: a free valuation, the Concord packet assembled and the sewer question answered the week you list, or the Chadds Ford well and septic records organized, and the 55+ landing spot researched in parallel, because inventory there moves. The Delaware County downsizing guide maps the options, neighbors in Chester Heights run their own process, and the sequencing guide settles the question every Glen Mills downsizer asks first.

Sources

Every guide on this site is built from primary sources (government agencies and recognized research institutions) and reviewed before publication.

Glen Mills and Chadds Ford seller questions

Does Concord Township (Glen Mills) require an inspection to sell a house?

Yes, a resale certification under Chapter 90 of the township code, and the paperwork is the process. The packet requires original copies of six items: the resale certification application, the public sewer lateral inspection or private septic questionnaire report, an affidavit for visible address numbers, an affidavit for smoke and carbon monoxide alarms, an affidavit for swimming pool and spa safety, and a sewer rental fee certification for properties on or connecting to public sewer. In-person submissions are by appointment with the township office.

What is the Concord sewer lateral rule?

Two ordinances work together. Ordinance 338 requires a public sewer lateral inspection by the Concord Township Sewer Department before resale, so the line from your house to the main gets checked by the township itself, not a private plumber of your choosing. Ordinance 291 requires any property lying within 150 feet of a township sewer line to connect, with the tap-in fee paid at settlement, which can turn a septic-to-sewer conversion into a line item on your closing statement. Septic properties complete the on-site questionnaire instead.

Does Chadds Ford Township require anything at resale?

No resale certificate. Chadds Ford ties certificates of occupancy to building permits and changes of use, and its permit list includes no residential resale inspection. A sale there runs on the standard Pennsylvania paper trail, with two local wrinkles worth knowing: much of the township is on wells and septic regulated through the Delaware County Health Department, and properties in the township’s historic districts need architectural review for exterior changes, which matters for pre-listing projects.

What is the Glen Mills and Chadds Ford market like?

This is the Route 1 corridor at its strongest: Garnet Valley and Unionville-Chadds Ford schools, estate lots and newer communities, and one of the region’s densest concentrations of 55+ communities around Glen Mills, which makes downsizers a huge share of both sides of these transactions. Sellers are often trading a large single for a carriage home within a few miles, and the sequencing question, sell first or buy first, matters more here than almost anywhere in Delaware County.

About the author

Samantha Mallon, SRES®

Samantha is a real estate agent with Compass, licensed in Pennsylvania (RS365940) and New Jersey (2440598), holding the SRES® (Seniors Real Estate Specialist®) designation. Before real estate she earned a finance degree at Rutgers and a master’s in analytics at Georgia Tech, and worked in management consulting at Deloitte, a background she now applies to pricing, preparation, and honest guidance for sellers navigating downsizing, longtime homes, and family transitions across Greater Philadelphia and South Jersey.

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