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Samantha Mallon

Local Guides

Selling a Home in Radnor Township / Wayne, PA: The Engineering Department Runs Your Settlement

Radnor Township routes home-sale certificates through its Engineering Department: a $150 application 10 business days before settlement ($300 expedited), a smoke and CO certification signed by both parties, and a sanitary sewer pipe inspection.

By Samantha Mallon, SRES®, licensed in PA & NJ · Reviewed August 1, 2026 · 9 min read

Radnor Township is the Main Line with its own zip-code gravity: Wayne’s walkable center, Villanova’s campus edge, St. Davids and Ithan and the leafy streets between them. Buyers arrive with money and expectations, and the township meets them with a resale process run, unusually, by the Engineering Department, whose interests run less to paint color and more to what your house sends into the public sewer.

The Radnor seller picture

Radnor sellers hold some of the region’s most durable real estate: Radnor Township School District, the R5 rail line, and a national brand that survives every market cycle. The typical seller we meet has owned for twenty or thirty years, which means two things at once: equity that changes retirement math, and a house whose systems and finishes will be judged by buyers touring new construction in the same price band. Preparation pays here at a multiple, because Main Line buyers pay premiums for turnkey and demand discounts for dated, and the discount is always larger than the renovation would have been.

The Engineering Department process

The township’s Real Estate Transfers page governs every sale, and the department does not accept partial applications. The pieces:

  • File no less than 10 business days before settlement, signed by the owner, with the $150 fee. Inside 10 business days the fee becomes $300 for expedited handling, a doubling the township adopted by resolution in 2011 and has kept ever since.
  • The Smoke Detector and Carbon Monoxide Certificate needs both signatures, seller and buyer, with the buyer’s phone number, before the certificate of occupancy will be released. Detectors go in the immediate vicinity of bedrooms, one per bedroom, and one on every level, per the property maintenance code the township follows.
  • The inspection covers the visible municipal items: house numbering, sidewalks, and the sanitary sewer check described below.

The sewer soil pipe inspection

Radnor’s signature requirement is the one sellers least expect: where applicable, an internal inspection of the sanitary sewer soil pipe, scheduled with the Engineering Department at 610-688-5600, ext. 129, to confirm no illegal connections exist. The township is hunting for stormwater in the sanitary system, the sump pumps and roof leaders that older homes quietly tied into the sewer decades ago. Findings are forwarded to the buyer and must be corrected. If your basement setup dates to a previous owner and you have never traced where the sump discharges, trace it before the township does.

The money, at Main Line scale

The realty transfer tax runs 2% combined in Radnor, split by custom, so the seller’s share on a $1,000,000 sale is $10,000. The larger number at these price points is federal: a couple who bought in Wayne in the nineties can hold a gain past the $500,000 exclusion, and the excess is taxed as capital gain. Improvement records raise your cost basis and shrink that number, which makes the file of renovation receipts a five-figure document. The home-sale tax guide works through the mechanics, and the cost-to-sell guide covers the rest.

Where downsizers here go

Radnor downsizers have the Main Line’s best short-move menu: condos in Wayne and Bryn Mawr that keep the restaurants and the rail line, continuing-care communities clustered along the Lancaster Avenue corridor, and the county’s 55+ stock a short drive west. Delaware County’s COSA is the public-services front door. The Delaware County guide compares the local options, and the sequencing guide matters doubly here, because the condos Radnor downsizers want are scarce and sell quickly.

Getting started

Start with a free valuation, because every downstream decision, from renovation-versus-discount to capital gains planning, keys off an honest number. Then the Radnor checklist: application filed early, both signatures on the detector certificate, the sewer inspection booked, and the sump pump question answered before the township asks it. The complete downsizing guide frames the year around the sale.

Sources

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

Radnor and Wayne seller questions

Does Radnor Township require a use and occupancy certificate for a home sale?

Yes. Radnor’s official FAQ confirms U&O permits are required for resales, and the Real Estate Transfers page details the process: the seller files with the Engineering Department at least 10 business days before settlement, pays $150, and submits a Smoke Detector and Carbon Monoxide Certificate signed by both seller and buyer. Settlements inside 10 business days pay a $300 expedited fee.

What is the sewer soil pipe inspection in Radnor?

Where applicable, the owner schedules an internal inspection of the sanitary sewer soil pipe with the Engineering Department (610-688-5600, ext. 129) to confirm no illegal connections exist, such as sump pumps or roof drains feeding the sanitary sewer. Illegal connections found during the inspection are reported to the buyer and must be corrected.

Why does the buyer have to sign the smoke detector certificate?

Radnor requires the certification from both parties, with the buyer’s phone number on the application, and will not release the certificate of occupancy until the signed form is in. Practically, your agent should send the form to the buyer’s side the day the agreement is signed, because chasing a buyer signature in the final week is the avoidable version of this delay.

How much does it cost to sell a home in Wayne?

Beyond commission, plan on the seller’s customary 1% share of the 2% realty transfer tax ($8,500 on an $850,000 sale), the $150 township application, any sewer or sidewalk corrections the township flags, and preparation. At Main Line price points, the federal capital gains exclusion deserves early attention: longtime Radnor owners can hold gains well beyond $500,000, and the tax planning is better done in spring than at the settlement table.

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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