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For Sale

Listing description

Welcome to 512 Firethorn Road, where an incredible King of Prussia location meets the kind of outdoor space that is becoming nearly impossible to find. Situated on nearly 15,000 square feet of land on one of the largest lots in the neighborhood, this move-in-ready 4-bedroom home offers an exceptional combination of indoor living space, outdoor entertaining, storage, and convenience. If a large backyard and outdoor entertaining space are on your wish list, this one delivers. A massive deck stretches across the rear of the home, creating an incredible setup for outdoor dinners, grilling, parties, entertaining, or hosting friends and family. Beyond the deck is an expansive fenced backyard with plenty of room for kids, pets, games, gardening, a future fire pit, or simply enjoying your own private outdoor space. The established gardens make the property even more special. Years of care have created mature garden beds filled with flowering plants, trees, and colorful blooms that transform throughout the seasons. From vibrant spring flowers to lush summer gardens, this is landscaping and character that simply can't be created overnight. Be sure to check out the seasonal photos to see the gardens in full bloom! Inside, the freshly painted, move-in-ready interior is filled with natural light. The main level offers comfortable living and dining spaces plus a kitchen with generous cabinetry, granite countertops, and plenty of workspace. The home features four bedrooms, including an expansive upper-level fourth bedroom offering flexibility as a bedroom, home office, guest space, or private retreat. Plumbing is directly accessible to this level, creating exciting potential for another full bathroom in the future. Above it is an impressive amount of additional storage. The finished lower level adds even more flexible living space for a family room, home office, playroom, workout area, hobby room, or combination of uses, along with a convenient half bath and dedicated laundry/utility area. Recent Updates include: Brand New Heating/AC System, Roof & Carpeting less than 5 years old. And then there's the location. You're minutes from King of Prussia Mall, King of Prussia Town Center, Valley Forge National Historical Park, restaurants, shopping, entertainment, Routes 202 and 422, I-76, PA Turnpike making commuting and everyday life incredibly convenient. Four bedrooms. Nearly 15,000 square feet of property. One of the neighborhood's largest lots. A huge entertaining deck. Expansive fenced backyard. Established gardens. Move-in-ready interior. Flexible finished space. Exceptional storage. And an unbeatable location in the heart of King of Prussia. 512 Firethorn Road offers the space to spread out, the backyard to bring everyone together, and the location to put everything within reach.

Rooms by level

How the bedrooms and baths are distributed across the floors, as reported by the listing agent.

  1. Lower level1 half bath
  2. Upper level2 bedrooms · 1 full bath
  3. Upper level 21 bedroom

Facts & features

Interior

Bedrooms
3
Bathrooms
1 full · 1 half
Living area
1,847 sq ft
Heating
Forced Air
Cooling
Central A/C

Property & construction

Property type
Residential · Detached
Architectural style
Split Level, Traditional
Year built
1955

Lot & parking

Lot size
0.34 acres (14,810 sq ft)
Garage
1 space

Financial

Price / sq ft
$338
HOA dues
None

Listing details

MLS #
PAMC2190544
County
Montgomery County
School district
Upper Merion Area
Days on NookLocal
2 days

Interior features

Flooring
Wood, Tile/Brick, Carpet
Interior features
Bathroom - Tub Shower, Ceiling Fan(s), Combination Dining/Living, Family Room Off Kitchen, Floor Plan - Traditional, Formal/Separate Dining Room, Upgraded Countertops, Walk-in Closet(s), Window Treatments, Wood Floors
Fireplace
1
Fireplace type
Brick
Laundry
Lower Floor
Levels
2.5
Accessibility
None

Exterior & construction

Construction
Brick
Roof
Pitched
Foundation
Concrete Perimeter
Exterior features
Exterior Lighting, Awning(s), Extensive Hardscape
Patio & porch
Patio(s), Deck(s), Porch(es)
Doors
Sliding Glass
Fencing
Fully

Systems & utilities

Heating fuel
Natural Gas
Cooling fuel
Electric
Hot water
Natural Gas
Water source
Public
Sewer
Public Sewer

Parking

Parking
Attached Garage
Garage type
Garage - Front Entry, Inside Access
Parking features
Asphalt Driveway
Total spaces
1

Community

Subdivision
CINNAMON HILL

Lot & zoning

Lot dimensions
70.00 x 0.00
Lot features
Level, Private, Front Yard, Rear Yard, SideYard(s)
Zoning
R2

Included in the sale

Inclusions
Washer, Dryer, Refrigerator
Possession
Negotiable

Price history

DateEventPrice
Aug 20, 2026Listed for sale$625,000

Price changes are tracked from when NookLocal first indexed this listing; earlier history may not appear. Tax & assessment details are in the section below.

The NookLocal estimate

Estimated value

$587,000

Automated estimate, not an appraisal. Sale records through July 2026.

About this estimate

Based on 10 comparable sales nearby, the Montgomery County assessment ratio, weighted toward the current asking price.

Current list price
$625,000
County assessment implies
$469,564
Est. property taxes at today's rates
$4,193/yr

Comparable Sales

AddressClosedSale priceBd/BaSqftAdjusted value
248 W BEIDLER RD, KING OF PRUSSIA, PA 19406August 2026$650,0003/21,848$598,228
167 E VALLEY FORGE RD, KING OF PRUSSIA, PA 19406July 2026$490,0003/21,808$453,613
394 STONYBROOK RD, KING OF PRUSSIA, PA 19406January 2026$416,5003/11,784$461,166
278 ROBERTS DR, KING OF PRUSSIA, PA 19406April 2026$555,0003/11,702$593,322
670 V ST, KING OF PRUSSIA, PA 19406August 2025$450,0003/11,802$506,965
411 CROSSFIELD RD, KING OF PRUSSIA, PA 19406July 2025$390,0003/11,764$422,840

Estimated taxes

Estimated at current rates

$4,979 / year

$415 per month

MLS shows (2026)

$5,121

-2.8% at current rates

School tax

UPPER MERION AREA · 24.01 mills (2025-26)

$3,360

County tax

Montgomery County · 5.95 mills (2026)

$833

Municipal tax

As recorded for 2026, varies by municipality

$786

Recomputed from the county assessment ($139,930, 1996 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 Montgomery County before relying on it. Learn more: PA property tax calculator · Common Level Ratio by county.

Estimated monthly payment calculator

$125,000 (20%)
6.43%

Loan term

Estimated monthly payment

$3,735/mo

Principal & interest
$3,137
Property taxes (current rates)
$415
Home insurance (est.)
$182

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.

Area statistics

School district

Upper Merion Area

Academic index
61.2/100
Graduation rate
91.9%
PSSA ELA proficient
56.6%
PSSA Math proficient
48.7%

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

Montgomery County crime & safety numbers →

County figures from FBI and Pennsylvania source data.

Property taxes

Montgomery County taxes, explained →

Millage, the Common Level Ratio, and what changes after you buy.

© BRIGHT, All Rights Reserved

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: August 22, 2026 at 2:05 AM EDT

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