$420,000
133 Caernarvon Ct, Exton, PA 19341
Listed by RE/MAX Professional Realty
Welcome to 403 Carmarthen Court, a beautifully updated 3-bedroom, 2.5-bath townhome nestled in the desirable Rhondda community of Exton. Truly move-in ready, this home features a newer roof, an updated kitchen, and two beautifully refreshed full bathrooms. The comfortable, inviting layout offers plenty of space for everyday living, relaxing, and entertaining. Outside, enjoy a welcoming neighborhood setting complete with sidewalks, playgrounds, community pool, walk/jog paths, and a basketball court—perfect for getting outdoors and connecting with the community. Offering an ideal combination of comfort, convenience, and low-maintenance living in a fantastic Exton location, this wonderful home is ready to welcome its next owners. Step inside and discover a thoughtfully designed layout with spacious living areas and plenty of room for everyday living and entertaining. The home features three generously sized bedrooms, including a comfortable primary suite with ensuite bath, along with additional full bath and a convenient main-level powder room. Whether you are relaxing at home, hosting friends and family, or enjoying the surrounding community, this townhome offers the flexibility and space to fit your lifestyle. One of the true highlights of this location is the lifestyle that comes with living in Exton and Chester County as a whole. Enjoy the perfect balance of suburban tranquility and everyday convenience, with shopping, dining, entertainment, and major commuter routes all nearby. Spend your weekends exploring the area's beautiful parks, walking and hiking trails, and scenic open spaces, or venture into nearby West Chester and other charming Chester County towns for local restaurants, boutiques, and community events. 403 Carmathen Ct is located in the award-winning Downingtown Area School District, including access to the highly regarded Downingtown STEM Academy. With its desirable Rhonnda location, comfortable and functional layout, award winning school district, and easy access to everything Exton and Chester County have to offer, 403 Carmarthen Ct presents a wonderful opportunity to enjoy a lifestyle where convenience and tranquility truly come together. Welcome home.
How the bedrooms and baths are distributed across the floors, as reported by the listing agent.
| Date | Event | Price |
|---|---|---|
| Sep 8, 2026 | Listed for sale | $425,000 |
Price changes are tracked from when NookLocal first indexed this listing; earlier history may not appear. Tax & assessment details are in the section below.
Estimated value
$417,000
Automated estimate, not an appraisal. Sale records through July 2026.
Based on 10 comparable sales nearby, the Chester County assessment ratio, weighted toward the current asking price.
| Address | Closed | Sale price | Bd/Ba | Sqft | Adjusted value |
|---|---|---|---|---|---|
| 301 GWYNEDD CT, EXTON, PA 19341 | July 2026 | $430,000 | 3/2 | 1,760 | $427,867 |
| 219 TOWYN CT, EXTON, PA 19341 | June 2026 | $415,000 | 3/2 | 1,760 | $414,682 |
| 117 TALGRATH, EXTON, PA 19341 | June 2026 | $395,000 | 3/2 | 1,760 | $395,035 |
| 100 CONWAY CT, EXTON, PA 19341 | June 2026 | $421,000 | 3/2 | 1,760 | $418,246 |
| 430 CARMARTHEN CT, EXTON, PA 19341 | April 2026 | $404,000 | 3/2 | 1,760 | $404,000 |
| 119 CONWAY CT, EXTON, PA 19341 | March 2026 | $425,000 | 3/2 | 1,760 | $450,313 |
Estimated at current rates
$3,578 / year
≈ $298 per month
MLS shows (2026)
$3,682
-2.8% at current rates
School tax
DOWNINGTOWN AREA · 31.91 mills (2025-26)
$2,997
County tax
Chester County · 5.16 mills (2026)
$485
Municipal tax
As recorded for 2026, varies by municipality
$96
Recomputed from the county assessment ($93,910, 1998 base year) × current millage. School millage is from the latest year certified by the Pennsylvania Department of Education (2025-26); districts adopt the next year's budgets each June, and we update when the state certifies the statewide file in the fall. Portals typically reprint the recorded 2026 bill. Pennsylvania does not reassess on sale. Estimate only. Verify with Chester County before relying on it. Learn more: PA property tax calculator · Common Level Ratio by county.
Loan term
Estimated monthly payment
$2,638/mo
Taxes use NookLocal's estimate at current millage rates, not the stale figure on the MLS. The default rate is the average 30-year rate as of July 2026; insurance is estimated at 0.35% of the price per year. Below 20% down, lenders usually add mortgage insurance, which this estimate doesn't include. Estimate only; verify before relying on it.
School district
Downingtown Area
2025 PA state assessments (PSSA / Keystone) and graduation data. The index measures student outcomes, not school effectiveness, and is not adjusted for demographics. Districts serve all residents; verify enrollment boundaries with the district.
Safety data
Chester County crime & safety numbers →
County figures from FBI and Pennsylvania source data.
Property taxes
Chester County taxes, explained →
Millage, the Common Level Ratio, and what changes after you buy.
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Information Deemed Reliable But Not Guaranteed
The data relating to real estate for sale on this website appears in part through the BRIGHT Internet Data Exchange program, a voluntary cooperative exchange of property listing data between licensed real estate brokerage firms in which United Real Estate Strive 212 participates, and is provided by BRIGHT through a licensing agreement.
IDX listings are displayed pursuant to broker of record United Real Estate Strive 212, Frank Ramos, Broker/Owner, PA Broker License RM424345, 1220 Broadcasting Rd, Suite 201, Wyomissing, PA 19610, (610) 372-0212.
The information provided by this website is for the personal, non-commercial use of consumers and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.
Some properties which appear for sale on this website may no longer be available because they are under contract, have Closed or are no longer being offered for sale.
Data last updated: September 10, 2026 at 2:22 PM EDT
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