Patrick Mayo
RE/MAX Realty Centre, Inc.
(301) 417-5030
43 Total Sales
1 in Potomac
$1,530,000 Price
10517 Alloway Dr Potomac, MD 20854
Potomac Area
8
Beds
6.5
Baths
8,488
Sq Ft
2.39
Acre Lot
Highlights
- Second Kitchen
- Eat-In Gourmet Kitchen
- 2.39 Acre Lot
- Potomac Elementary School Rated A
- Scenic Views
- Dual Staircase
About This Home
As of August 2026New Improved Price! Perfectly positioned in one of Potomac's most sought-after close-in neighborhoods, this exceptional custom-built estate offers nearly 10,000 square feet of beautifully crafted living space on almost 2.5 private acres. Just minutes from Potomac Village, Bethesda, Washington, DC, Northern Virginia, and major commuter routes, the home offers the perfect balance of privacy and convenience.
Designed with quality craftsmanship and timeless architecture, the residence showcases impressive room sizes, soaring ceilings, extensive decorative millwork, hardwood floors, custom built-ins, and a dramatic two-story marble foyer. The thoughtfully designed floor plan is equally suited for elegant entertaining and comfortable everyday living, with gracious formal rooms complemented by inviting family spaces.
The updated gourmet kitchen opens to a coffered-ceiling family room with fireplace and wet bar, while expansive decks overlook the spectacular grounds. A richly paneled library, adjacent office or optional main-level bedroom, and full bath create an ideal opportunity for a private in-law suite, guest accommodations, or multi-generational living.
The upper level features six spacious bedrooms, including an exceptional owner's suite with sitting room, private balcony, generous walk-in closets, and luxurious marble bath. The walk-out lower level is designed for entertaining with a recreation room, fireplace, full bar, second kitchen, wine cellar, fitness or game room, additional bedroom, and full bath.
The park-like grounds are equally impressive, with a picturesque creek, charming footbridge, mature landscaping, and exceptional outdoor living spaces that create a peaceful estate setting.
A remarkable combination of location, quality construction, generous living spaces, and exceptional flexibility makes this one of Potomac's most compelling luxury offerings.
***Features***Whole House Generator***Two Gas HWH 2016, 2019***Two Zone Gas Furnace 2015, 2016***Two Zone AC 2013, 2015***Roof 2004***Irrigation System***View Virtual Tour for Video***
Last Agent to Sell the Property
(301) 718-0010 julie.davis@cbmove.com Coldwell Banker Realty Brokerage Phone: 3017180010 License #SP98363250 Listed on: 07/16/2026
Last Buyer's Agent
Unrepresented
datacorrect@brightmls.com Unrepresented
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Home Details
Home Type
- Single Family
Est. Annual Taxes
- $24,348
Year Built
- Built in 1982
Lot Details
- 2.39 Acre Lot
- Sprinkler System
- Property is zoned RE2
Parking
- 3 Car Attached Garage
- Side Facing Garage
- Garage Door Opener
- Circular Driveway
Property Views
- Scenic Vista
- Creek or Stream
- Garden
Home Design
- Colonial Architecture
- Transitional Architecture
- French Architecture
- Brick Exterior Construction
- Block Foundation
- Shake Roof
Interior Spaces
- Property has 3 Levels
- Traditional Floor Plan
- Central Vacuum
- Dual Staircase
- Built-In Features
- Bar
- Chair Railings
- Crown Molding
- Paneling
- Wainscoting
- Two Story Ceilings
- Ceiling Fan
- Skylights
- Recessed Lighting
- 3 Fireplaces
- Wood Burning Fireplace
- Fireplace With Glass Doors
- Fireplace Mantel
- Brick Fireplace
- Casement Windows
- Family Room Off Kitchen
- Formal Dining Room
Kitchen
- Eat-In Gourmet Kitchen
- Second Kitchen
- Breakfast Area or Nook
- Double Oven
- Electric Oven or Range
- Six Burner Stove
- Cooktop with Range Hood
- Microwave
- Extra Refrigerator or Freezer
- Ice Maker
- Dishwasher
- Stainless Steel Appliances
- Kitchen Island
- Upgraded Countertops
- Wine Rack
- Disposal
Flooring
- Wood
- Carpet
- Marble
Bedrooms and Bathrooms
- En-Suite Bathroom
- Cedar Closet
- Walk-In Closet
- Hydromassage or Jetted Bathtub
- Walk-in Shower
Laundry
- Laundry on main level
- Dryer
- Washer
- Laundry Chute
Finished Basement
- Walk-Out Basement
- Exterior Basement Entry
- Basement with some natural light
Home Security
- Home Security System
- Intercom
Outdoor Features
- Stream or River on Lot
- Balcony
- Deck
- Shed
Schools
- Potomac Elementary School
- Herbert Hoover Middle School
- Winston Churchill High School
Utilities
- Forced Air Zoned Heating and Cooling System
- Heating System Uses Natural Gas
- Natural Gas Water Heater
Community Details
- No Home Owners Association
- Built by CUSTOM
- Potomac Ranch Subdivision
Listing and Financial Details
- Tax Lot 28
- Assessor Parcel Number 161001879658
Ownership History
We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.
Date
Name
Owned For
Owner Type
Purchase Details
Listed on
Jul 16, 2026
Closed on
Aug 19, 2026
Sold by
Beard Lillian M and Delawrence Beard
Bought by
Seller's Agent
Pamela Powers
Coldwell Banker Realty
Buyer's Agent
Unrepresented
Unrepresented
List Price
$2,250,000
Sold Price
$1,930,000
Premium/Discount to List
-$320,000
-14.22%
Views
131
Home Financials for this Owner
Home Financials are based on the most recent Mortgage that was taken out on this home.
Avg. Annual Appreciation
1,086.77%
Purchase Details
Closed on
Nov 5, 2015
Sold by
Beard Lilian M and Beard Delawrence
Bought by
Beard Lillian M and Beard Delawrence
Purchase Details
Closed on
Dec 20, 2014
Sold by
Mclean Woodie
Bought by
Beard Lillian M and Beard Delawrence
Home Values in the Area
Average Home Value in this Area
Agents Specializing in Potomac, MD
-
Patrick Mayo
-
Mary Noone
Mary Noone
Compass
(240) 913-6938
115 Total Sales
4 in Potomac
$1.2M - $1.5M Price Range
-
Roby Thompson
Roby Thompson
Long & Foster Real Estate, Inc.
(202) 929-5866
124 Total Sales
1 in Potomac
$1,575,000 Price
-
Tyler Siperko
Tyler Siperko
Responds QuicklyCompass
(667) 213-6539
153 Total Sales
12 in Potomac
$917K - $2M Price Range
-
Laurie Mensing
Laurie Mensing
Long & Foster Real Estate, Inc.
(844) 760-1166
262 Total Sales
1 in Potomac
$879,000 Price
-
John Lee
John Lee
RE/MAX Realty Services
(814) 324-5721
94 Total Sales
1 in Potomac
$1,360,000 Price
Purchase History
We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.
| Date | Type | Sale Price | Title Company |
|---|---|---|---|
| Interfamily Deed Transfer | -- | Attorney | |
| Deed | -- | None Available |
Source: Public Records
Mortgage History
We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.
| Date | Status | Loan Amount | Loan Type |
|---|---|---|---|
| Open | $813,855 | New Conventional | |
| Closed | $812,700 | New Conventional | |
| Closed | $861,750 | New Conventional | |
| Previous Owner | $729,750 | New Conventional | |
| Previous Owner | $470,000 | Credit Line Revolving |
Source: Public Records
Property History
We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.
| Date | Event | Price | List to Sale | Price per Sq Ft |
|---|---|---|---|---|
| 08/19/2026 08/19/26 | Sold | $1,930,000 | -14.2% | $227 / Sq Ft |
| 07/16/2026 07/16/26 | For Sale | $2,250,000 | -- | $265 / Sq Ft |
Source: Bright MLS
Tax History
We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.
| Year | Tax Paid | Tax Assessment Tax Assessment Total Assessment is a certain percentage of the fair market value that is determined by local assessors to be the total taxable value of land and additions on the property. | Land | Improvement |
|---|---|---|---|---|
| 2026 | $23,656 | $2,092,233 | ||
| 2025 | $23,656 | $2,043,000 | $503,700 | $1,539,300 |
| 2024 | $23,520 | $1,980,533 | $0 | $0 |
| 2023 | $22,079 | $1,918,067 | $0 | $0 |
| 2022 | $20,431 | $1,855,600 | $503,700 | $1,351,900 |
| 2021 | $20,325 | $1,855,600 | $503,700 | $1,351,900 |
| 2020 | $20,325 | $1,855,600 | $503,700 | $1,351,900 |
| 2019 | $20,746 | $1,896,400 | $564,900 | $1,331,500 |
| 2018 | $20,589 | $1,879,567 | $0 | $0 |
| 2017 | $20,780 | $1,862,733 | $0 | $0 |
| 2016 | -- | $1,845,900 | $0 | $0 |
| 2015 | $20,643 | $1,845,900 | $0 | $0 |
| 2014 | $20,643 | $1,871,300 | $0 | $0 |
Source: Public Records
Agents Affiliated with this Home
-
Pamela Powers
Seller's Agent in 2026
Pamela Powers
Coldwell Banker (NRT-Southeast-MidAtlantic)
(202) 253-0754
55 Total Sales
-
U
Buyer's Agent in 2026
Unrepresented
Unrepresented
Map
Source: Bright MLS
MLS Number: MDMC2246110
APN: 10-01879658
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