
$525,000
137 Walker Ln, King Of Prussia, PA 19406
Listed by Keller Williams Realty Devon-Wayne
Welcome to 423 Old Fort Road, a recently renovated, beautifully reimagined bi-level residence that perfectly blends modern style with everyday comfort. Nestled in the heart of King of Prussia and situated within the highly regarded Upper Merion School District, this home has been thoughtfully renovated from top to bottom, offering a fresh, contemporary aesthetic that’s ready for you to move right in. The main level offers a stunning kitchen, laundry, boasting sleek cabinetry, gleaming countertops, and stainless steel appliances. Ideal for everything from quick morning coffees to hosting weekend gatherings. Just off the dining area, the living space feels bright and inviting.. Step outside to find a generous, fully fenced-in backyard. It’s a outdoor oasis perfect for gardening, summer grilling, or simply relaxing under the trees. Located in the Upper Merion area, you are just minutes away from world-class shopping, diverse dining options, and major commuter routes. This is a rare opportunity to own a turnkey home in one of Montgomery County’s most convenient and sought-after locations.
| Date | Event | Price |
|---|---|---|
| Jun 30, 2026 | Listed for sale | $575,000 |
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
$529,558
Automated estimate, not an appraisal.
Based on 10 comparable sales nearby, the Montgomery County assessment ratio, weighted toward the current asking price.
| Address | Closed | Sale price | Bd/Ba | Sqft | Adjusted value |
|---|---|---|---|---|---|
| 110 MONROE RD, KING OF PRUSSIA, PA 19406 | May 2026 | $453,000 | 3/1 | 1,363 | $437,674 |
| 514 OLD FORT RD, KING OF PRUSSIA, PA 19406 | August 2025 | $460,000 | 3/1 | 1,300 | $480,131 |
| 239 S GULPH RD, KING OF PRUSSIA, PA 19406 | June 2026 | $435,000 | 3/2 | 1,299 | $407,310 |
| 637 SCHOOL LINE DR, KING OF PRUSSIA, PA 19406 | June 2026 | $487,000 | 3/1 | 1,334 | $477,776 |
| 187 E VALLEY FORGE RD, KING OF PRUSSIA, PA 19406 | June 2026 | $510,000 | 3/1 | 1,400 | $472,603 |
| 413 BRANDYWINE LN, KING OF PRUSSIA, PA 19406 | November 2025 | $409,900 | 3/1 | 1,367 | $418,891 |
| Date | Event | Price |
|---|---|---|
| April 2012 | Sold | $215,000 |
From closed MLS records since 2018. Earlier transactions may exist.
Estimated at current rates
$3,758 / year
≈ $313 per month
MLS shows (2025)
$3,758
School tax
UPPER MERION AREA · 24.01 mills (2025-26)
$2,536
County tax
Montgomery County · 5.95 mills (2026)
$629
Municipal tax
As recorded for 2025 — varies by municipality
$593
Recomputed from the county assessment ($105,620, 1996 base year) × current millage — portals typically reprint the recorded 2025 bill. Pennsylvania does not reassess on sale. Estimate only — verify with Montgomery County before relying on it. Learn more: PA property tax calculator · Common Level Ratio by county.
Loan term
Estimated monthly payment
$3,464/mo
Taxes use NookLocal's estimate at current millage rates, not the stale figure on the MLS. Estimate only; verify before relying on it.
School district
Upper Merion Area
2025 PA state assessments (PSSA / Keystone) and graduation data. Districts serve all residents; verify enrollment boundaries with the district.
Safety data
Montgomery Countycrime & safety numbers →
FBI and Pennsylvania source data, presented without spin.
Property taxes
Montgomery 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: July 4, 2026 at 2:29 AM EDT
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