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Samantha Mallon

Downsizing

Downsizing on the Main Line: The Township Rules, the Money, and Where the Equity Goes Next

A downsizing guide for the Main Line corridor from Overbrook to Paoli: every township’s resale inspection rules and fees compared (Lower Merion, Narberth, Haverford, Radnor, Tredyffrin, Easttown), the capital gains question at Main Line prices, and where downsizers actually land, from Waverly Heights to Chesterbrook.

By Samantha Mallon, SRES®, licensed in PA & NJ · Reviewed September 13, 2026 · 10 min read

The Main Line is where Greater Philadelphia’s downsizing math gets biggest: more equity, more house, more decades in one address, and township rules that differ on opposite sides of the same road. This guide covers the corridor from Overbrook to Paoli (Lower Merion, Narberth, Haverford Township, Radnor, Tredyffrin, and Easttown) as one downsizing market: what each township requires to sell, the money questions that actually bite at these price points, where Main Line downsizers tend to land, and the order of operations that keeps a two-part move from becoming two separate crises.

Why Main Line downsizing is its own problem

Three things separate a Main Line downsizing sale from the regional average. First, the equity is larger and older: a house bought in the 1980s or 1990s often carries a gain well past the federal exclusion, so tax planning belongs at the start of the timeline, not the end. Second, the houses are bigger: four to six bedrooms of contents is a sorting project measured in months, and it sits on the critical path before photography. Third, the townships regulate the sale itself: most of the corridor requires a municipal inspection or certification with real repair consequences, and the rules change at every boundary. None of this is a reason to stay put; it is a reason to sequence the move deliberately, the way the complete downsizing guide lays out for the region.

The township rules, town by town

What your township requires before settlement, from each municipality’s published rules (each town links to its full local guide):

Resale requirements and fees for Main Line municipalities
MunicipalityRequired to sellFeeThe local wrinkle
Lower MerionResale certification$80 to $145Sidewalks and curbs must be in repair; plan 30 to 60 days
NarberthResale U&ONot publishedPortal application auto-sequences the inspection; public works chalks failing sidewalks
Haverford TownshipResale U&O$75 to $300Application must be filed at least 30 days before settlement
Radnor (Wayne)Resale CO$150 to $300Runs through the Engineering Department; sewer soil pipe on the checklist
TredyffrinNoneNoneA genuine advantage: no resale inspection at all
Easttown (Devon/Berwyn)Utility certifications$50No resale CO; open permits are the trap to check early

The money: transfer tax and the capital gains question

The Main Line’s realty transfer tax is the standard suburban 2% (1% to Pennsylvania, 1% local), customarily split evenly, so the seller’s share is about 1%: $8,500 on an $850,000 sale. That is less than half the Philadelphia rate, and it is rarely the number that matters most here.

The number that matters is federal. The Section 121 exclusion shelters $250,000 of gain for a single owner and $500,000 for a married couple on a primary residence, and a Main Line house held for thirty years can clear those caps easily. Two things shrink the taxable excess: documented capital improvements, which raise your basis dollar for dollar, and timing around a spouse’s death, when the stepped-up basis rules can eliminate much of the gain if the sale is sequenced correctly. The two-state tax guide and the surviving-spouse guide cover both in depth. Pull the improvement file together before the basement is packed; the receipts are worth real money.

Where Main Line downsizers go

Four destinations cover most Main Line downsizing moves, and each changes the financial sequence:

  • The continuing-care campuses on and around the corridor. Waverly Heights in Gladwyne and Beaumont at Bryn Mawr sit inside the Main Line itself; Dunwoody Village and White Horse Village in Newtown Square and Riddle Village in Media are minutes away. Entrance fees are commonly funded by the house sale, which makes the sale timeline part of the admission plan; the regional fee table compares every published number.
  • A townhome or condo that keeps the zip code. Chesterbrook in Tredyffrin is the corridor’s largest single pool of townhome and condo stock, with the bonus that Tredyffrin imposes no resale inspection when you eventually sell again; Bryn Mawr, Ardmore, and Wayne carry the elevator-condo inventory. One-floor living without leaving the doctors, the church, or the grandkids’ school calendar.
  • A walkable borough footprint. Narberth and downtown Wayne compress life to a few blocks of sidewalk, which is downsizing by geography rather than by square footage.
  • Toward family. Often out of state, which adds a domicile and tax dimension covered in the Delaware and Florida guide.

The sequencing: sell first, buy first, or contract first

At Main Line equity levels, most downsizers can choose their order, which makes the choice a strategy question rather than a necessity. Selling first converts the equity to cash and makes you a clean buyer, at the cost of an interim housing plan; buying first (or a bridge arrangement) avoids the double move but carries two properties briefly. A CCRC changes the calculus again: the community’s deposit and underwriting deadlines set the tempo, and the house sale funds the entrance fee. The sell-first-or-buy-first guide works through each path, and the CCRC funding guide covers the contract-first version in detail.

Whichever order you choose, the first concrete step is the same: know what the house would actually bring, on paper, from comparable sales you can inspect. Every other decision (the destination, the budget, the timeline, the tax plan) keys off that number.

Getting started

The Main Line order of operations: a free valuation first, the capital gains and improvement-records review second, the township application filed the week you list, contents sorted on the printable checklist timeline, and the destination (community, condo, or borough) chosen with the sale proceeds in hand rather than guessed at. Samantha, SRES®, works this corridor township by township and prepares the valuation and net sheet by hand, free and without obligation, even if the move is a year or more away.

This guide is for general information, drawn from the official sources listed below and current as of September 13, 2026. It is not tax or legal advice; rules change and individual situations differ, so confirm anything that affects your money with a CPA, tax preparer, or attorney before acting.

Sources

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

Main Line downsizing questions

Do Main Line townships require an inspection to sell a house?

Most do, and they differ street by street. Lower Merion requires a resale certification ($80 to $145) with sidewalks and curbs in repair and a 30-to-60-day runway. Radnor runs a resale certificate of occupancy ($150 to $300) through its Engineering Department with the sewer soil pipe on the checklist. Haverford Township requires a resale U&O ($75 to $300) filed at least 30 days before settlement, and Narberth runs a resale U&O through its online portal. Tredyffrin and Easttown are the exceptions: Tredyffrin requires nothing for a residential resale, and Easttown asks only for $50 utility certifications.

What does it cost to sell a Main Line house?

Plan on roughly 7% to 10% all-in. The realty transfer tax is the standard suburban 2% (1% state, 1% local), customarily split, so the seller pays about 1%: $8,500 on an $850,000 sale. Add brokerage compensation as negotiated, the township certification fee and any flagged repairs, preparation, and buyer inspection credits. At Main Line prices, the bigger tax question is usually federal capital gains above the exclusion, not the transfer tax.

Will I owe capital gains tax when I sell a longtime Main Line home?

Possibly, and it deserves attention before listing rather than at settlement. The IRS Section 121 exclusion shelters $250,000 of gain for a single filer and $500,000 for a married couple filing jointly on a primary residence. Decades of Main Line appreciation routinely produce gains beyond those caps, and the tax on the excess is calculated on the gain after documented improvements are added to basis. Gathering the improvement records early, before the house is packed, is one of the most valuable things a Main Line downsizer can do.

Where do Main Line downsizers actually move?

Four patterns cover most moves: a continuing-care community on or near the Main Line itself (Waverly Heights in Gladwyne, Beaumont at Bryn Mawr, White Horse Village and Dunwoody Village in Newtown Square, Riddle Village in Media); a townhome or condo that keeps the zip code, from Chesterbrook’s townhome stock in Tredyffrin to elevator condos in Bryn Mawr and Ardmore; a walkable borough footprint like Narberth or Wayne; or a move toward family, often out of state. Each has a different financial sequence, which is why the plan should come before the listing.

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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