Diamond Rock Farm sits majestically at the base of Valley Forge Mountain. This stunning home was built over three centuries starting in the 1760’s with updates and expansions in the 1850s and 1930’s. This home exudes a true sense of timeless elegance with its four fireplaces, slate and hardwood floors and original millwork and hardware. A home and property of this size and caliber in the T/E school district is an extremely rare find. As you step inside, you'll be transported back in time to an era of sophistication. The home has been lovingly restored and updated, with modern amenities seamlessly integrated into the historic architecture. The main level includes the cozy original 1700’s hearth room opening up to a grand 1920’s parlor style living room (newly updated in 2019) with solid hardwood wainscot panels from floor to ceiling, The fireplace is the undeniable focal point- complete with the original upholstered brass fender. There are French doors leading from this room outside to the bluestone slate terrace. The big, bright eat-in kitchen was updated in 2016 with fresh paint, neutral flooring and backsplash, new Caesarstone countertops, granite window sills and stainless steel appliances. It holds the potential for a chef's dream, with plenty of prep space and an oversized island. Through the kitchen you will find the beautifully appointed formal dining room and library/gathering room with built in bookcases and fireplace. Each room has a set of French doors to the terrace outside. Upstairs, the bright and airy primary suite (Fully updated in 2019) is ideally appointed with his and hers bathrooms and original built-in cabinetry. There is an adjoining dressing room with a wall of built in floor to ceiling cabinets which would also be perfect as a nursery. There are two additional ensuite bedrooms on the second floor, as well as the surprise of a 1970s retro kitchen that could be easily converted to an additional bedroom and bath or home office with a wet bar! There is also a large room open to the hall, currently an office, which would be perfect as a homework/hangout area for kids. There is also a laundry chute for easy delivery of clothing and linens to the laundry room just off of the kitchen. Climbing the wide staircase to the third floor, the bedroom includes an adjacent sitting room and private bath, perfect for an au pair suite. * The main house also features a whole house generator. Outside, the grounds are alive with vibrant flower beds and a lush lawn as well as a fenced in garden beside the barn. There is a multi-level terrace that runs the length of the main house, perfect for al fresco dining, bird watching or just relaxing with friends or family. The beautifully landscaped gardens offer a sense of tranquility and peace. Above the house up stone steps and into a wooded area of the property lies a pool that has not been used for 20 years. Let your imagination be your guide as you reinvent this potential oasis! There are also a number of outbuildings including a large barn with a three car garage underneath. As the barn is already partially finished, there is the potential for creating a full ‘Party Barn’ in which to entertain. A quaint potting shed and once lively playhouse provide additional recreation space as well as plenty of storage for all of your treasures. The lucky new owner will be confined only by their imagination! The home sits on 10 acres of wooded grounds which allows for significantly reduced taxes as it is designated a Farm. It is in a Rural Conservation zone. Located minutes from Valley Forge National Park with 3,500 acres of land with walking /biking trails as well as a 300 acre land conservancy less than a mile away on N. Valley Rd. This is a rare opportunity to possess your own piece of history in one of Pennsylvania's most highly regarded areas and the award-winning T/E school district. Only minutes from Route 202 and the PA turnpike as well as SEPTA railways.
Single-familyProperty Type
1765Year Built
10 acresLot Size
$341Est. Price/Sq.Ft.
3 garage spacesParking
Listed by Melissa Oeth• BHHS Fox & Roach Wayne-Devon
•610-651-2700 (broker)
Bought with Carol Young• Keller Williams Real Estate-Blue Bell
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Public record
Public record
Zoning
Permits
Beds
6
Baths
5.5
Stories
2
Lot width
—
Lot depth
—
Lot size
10 Acres
Year renovated
—
Sq. Ft.
5,019
Year built
1800
Style
Ranch
County
Chester County
APN
4304 00140100
Parking Spaces
—
Basement
—
Accessible
—
HOA Dues
—
Garage
—
Features
—
Last updated by owner on Aug 3, 2026.
RC
Rural-Conservation Districts
RC Rural-Conservation Districts are designed to encourage the preservation of sizable stream valley, wooded areas and areas of steep slopes within the Township, for protection of the Exception Value Waters Valley Creek Watershed, the limestone/carbonate geology of the Great Valley, scenic and historic areas in proximity to Valley Forge National Historic Park and other open space and historic purposes. Accordingly, the district regulations contain a density standard which, among other things, provides for agricultural and low-density residential uses and facilitates the conservation and proper utilization of groundwater supplies and the control of soil erosion and surface water runoff and flooding.
Permitted uses
Include but are not limited to:
Agriculture
Housing-Single unit
Infrastructure
Recreation
Park & open space
Apr 2, 2025 • Final
Hd - sewage permit - repair
Plumbing
Permit history is from public records and may be incomplete or inaccurate. Redfin and its agents make no representations about the property condition or permit status. Buyers should independently verify all information.
Property details
Parking
Parking Information
# of Detached Garage Spaces: 3
Garage Features: Additional Storage Area
# of Total Garage and Parking Spaces: 12
Has Garage
# of Garage Spaces: 3
Driveway - # of Spaces: 9
Circular Driveway, Paved Driveway, Paved Parking
Detached Garage, Driveway
Interior
Bedroom Information
# of Bedrooms On 1st Upper Level: 3
# of Bedrooms On 2nd Upper Level: 2
Bathroom Information
# of Bathrooms (Full) On 1st Upper Level: 4
# of Bathrooms (Full) On 2nd Upper Level: 1
# of Bathrooms (Half) On Main Level: 2
# of Bathrooms (Full) On All Upper Levels: 5
# of Bathrooms (Half): 2
# of Bathrooms (Full): 5
Interior Information
Flooring Type: Hardwood, Slate
Living Area Sq.Ft. Source: Assessor
Room Information
Living Room, Dining Room, Master Bedroom, Bedroom 2, Bedroom 3, Bedroom 4, Bedroom 5, Kitchen, Den, Library, 2nd Stry Fam Rm, Full Bath
Fireplace Information
Has Fireplace
# of Fireplaces: 3
Basement Information
Basement: Yes
Poured Concrete, Unfinished
Exterior
Property Information
Not Federal Flood Zone
Total Below Grade Sq. Ft.: 0
Irrigation Water Rights
Improvement Assessed Value: $378,210
Ownership Interest: Fee Simple
Property Condition: Very Good
Year Built Source: Estimated
Year Major Reno/Remodel: 1920
Building Information
Construction Materials: Stucco, Stone
Foundation Details: Stone
Other Structures: Above Grade, Below Grade
Pets Allowed: Yes
Pet Restrictions: No Pet Restrictions
Roof: Pitched, Asphalt
Structure Type: Detached
Pool Information
Personal Pool
Lot Information
Lot Size Dimensions: 0.00 x 0.00
Lot Dimensions Source: Assessor
Tidal Water: No
Land Information
Land Assessed Value: $2,750
Above Grade Information
Finished Sq.Ft.: 5,019
Finished Sq.Ft. Source: Assessor
Below Grade Information
Unfinished Sq.Ft. Source: Assessor
Finished Sq.Ft. Source: Assessor
Financial
Tax Information
City/Town Tax: $1,022
County Tax: $1,734
School Tax: $9,849
Tax Assessed Value: $380,960
Tax Year: 2023
Tax Annual Amount: $12,605
Assessments Information
Year Assessed: 2023
Lease Information
Lease Considered: No
Utilities
Utilities Information
Central Air
Cooling Type: Central A/C, Zoned
Cooling Fuel: Electric
200+ Amp Service
Hot Water, Zoned
Heating Fuel: Oil
Hot Water: Electric
Sewer Septic: On Site Septic
Water Source: Public
Municipal Trash: No
Location
School Information
Elementary School: VALLEY FORGE
Middle Or Junior School: VALLEY FORGE
High School: CONESTOGA SENIOR
School District Name: TREDYFFRIN-EASTTOWN
Elementary School Source: Listing Agent
Middle School Source: 3rd Party
High School Source: 3rd Party
School District Source: 3rd Party
Location Information
Cross Street: Diamond Rock Road
Directions: Driveway is on Yellow Springs Road just feet from the intersection of Diamond Rock Road. From Route 252, turn on to Swedesford Road. Then right on to N. Valley Road. At the end of N. Valley Road, turn right on to Yellow Springs and then left into the driveway just before Diamond Rock Road. Pull all the way around the house to the far side of the barn for best parking availability.
Municipality: TREDYFFRIN TWP
Public facts
Beds: 6
Baths: 5.5
Sq. Ft.: 5,019
Stories: 2.0
Lot Size: 10 acres
Style: Ranch
Year Built: 1800
Year Renovated: —
County: Chester County
APN: 4304 00140100
Home facts updated by county records on Aug 3, 2026
Around this home
Schools
Valley Forge Middle School
Public 5-8 • Assigned • 2.9mi
9/10
Conestoga Senior High School
Public 9-12 • Assigned • 3.1mi
10/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
Climate risks
1/10 Flood Factor
Minimal risk of a flood reaching the building in the next 30 years
1/10 Fire Factor
Unlikely to be in a wildfire in next 30 years
5/10 Heat Factor
7 days above 101° expected this year, 14 days in 30 years
6/10 Wind Factor
27% chance of strong winds in next 30 years
4/10 Air Factor
4 unhealthy days expected this year, 7 days in 30 years
Provided by First Street
Historical weather
Malvern, PA • 19355
Average low and high temperatures (°F)
35
21
39
25
57
37
66
45
71
53
83
63
87
68
81
61
79
59
68
47
56
38
41
26
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sun exposure
In this area, properties receive around 8.9 hours in
June and 4.2 hours in December, placing it below the
U.S. average for solar exposure.
8.9 hrs
4.2 hrs
JuneDecember
Provided by Shadowmap
Estimated sale price
$1.62M – $1.97M
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