Upper Darby is Delaware County’s biggest municipality and one of the busiest resale markets in the region: block after block of rowhomes, twins, and singles that turn over steadily thanks to the 69th Street transit hub and price points the rest of the county cannot match. It also runs one of the most involved municipal resale processes in the area, an interior and exterior U&O inspection plus a sewer camera requirement, and since January 2026 the township charges for it. None of it is a problem for a seller who starts early. All of it is a problem for a seller who starts under contract.
The Upper Darby seller picture
The buyer pool here is deep and layered: first-time buyers using the trolley and El to reach Center City jobs, families moving within the township, and investors who know the rental math cold. Longtime owners, many in houses held thirty and forty years, supply most of the inventory, and their equity math is strong: modest original purchase prices against a market that has climbed steadily. What separates results in Upper Darby is not demand; it is condition honesty and municipal preparedness, because the township’s process will surface deferred items whether or not the seller priced for them.
The U&O process and the 2026 fees
Every sale needs a resale certificate from the Department of Licenses and Inspections, and the township’s published rhythm is clear: apply at least 14 days before settlement, with four weeks the practical recommendation. Per the township’s 2026 fee schedule, reported by the Suburban Realtors Alliance, the residential fee is $110 for a single-family home and $135 for a duplex, covering the initial inspection and one reinspection; additional visits run $75, and a missed appointment or a cancellation inside 24 hours costs $100. The inspection itself covers interior life-safety items and the exterior list the township publishes: sidewalks and curbs, visible house numbers (front and rear for twins and rows with common driveways), windows and screens, roof condition, and general property maintenance.
The sewer lateral video
Upper Darby’s distinctive requirement is underground: a visual sewer lateral inspection, a camera run through the pipe connecting your house to the public main, performed by a master plumber certified with the township, with the report submitted before the U&O certificate can issue. Two details carry the weight:
- Reports expire in 90 days, so schedule the camera against your realistic settlement window, not the day you decide to sell.
- Findings are binary in effect. A clean lateral is a line item; a broken one is an excavation quote. Sellers who run the camera before listing price with knowledge. Sellers who wait learn about their pipe in the middle of a contract, at the worst possible negotiating moment.
The three certificate outcomes
The township’s system is built so violations delay occupancy, not necessarily settlement. A clean inspection earns the final certificate. Minor violations produce a temporary U&O: the sale proceeds and occupancy is permitted while corrections are made. Substantial violations trigger a temporary access certificate, which allows the transaction but bars new occupants until the problems are fixed. A buyer can take on the corrections with a notarized letter of intent, and the correction window generally runs twelve months. That structure protects closings, but every step down the ladder costs negotiating leverage, which is the practical argument for fixing the obvious before the inspector arrives.
The money
The realty transfer tax is 2% of the sale price, split by custom so the seller pays 1%. Pennsylvania generally does not tax the gain on a longtime primary residence, and at Upper Darby price points the federal exclusion covers effectively every household. The cost-to-sell guide itemizes the rest, and older sellers on fixed incomes should read the Property Tax/Rent Rebate guide: Upper Darby’s combination of modest home values and high tax effort makes it one of the townships where the rebate reaches the most households. For the wider county picture, including where Delco downsizers land, see the Delaware County downsizing guide and the county’s Office of Services for the Aging.
Getting started
The Upper Darby order: a free valuation first, the sewer camera and a frontage walk second, the U&O application filed at listing rather than at contract, and the repair-versus-disclose decisions made while you still control the calendar. The complete downsizing guide holds the longer plan when the sale is part of a bigger move.