
43179 Mongold Square Ashburn, VA 20148
Estimated payment $4,561/month
Highlights
- Penthouse
- Panoramic View
- Community Pool
- Rosa Lee Carter Elementary School Rated A
- Contemporary Architecture
- Community Basketball Court
About This Home
Welcome to 43179 Mongold Sq in sought-after Loudoun Valley, Ashburn—a rare opportunity to own the coveted Delanie model penthouse end unit, where luxury meets lifestyle. With 3 bedrooms, 2.5 baths, a dedicated office, and an expansive rooftop terrace, this home is a masterpiece of style, comfort, and convenience.
The upgraded modern design package sets a sophisticated tone throughout the home. Enjoy engineered hardwood oak floors, brushed satin nickel finishes, and premium Kohler fixtures. The gourmet kitchen is truly a chef’s dream, featuring a 30” smart wall oven/microwave combo, 36” gas cooktop with canopy vent hood, quartz countertops, and a large island perfect for entertaining.
The main level also offers a spacious dining area, walk-in pantry, elegant powder room, and a bright home office with a custom built-in desk. The living room opens to a private balcony, adding even more natural light to the open-concept layout.
Upstairs, the luxurious owner’s suite impresses with double walk-in closets and a spa-inspired en suite bath. Two additional bedrooms, a second full bath, laundry room, and a cozy loft-style sitting area round out the upper floor. Head one level up to your private rooftop terrace—ideal for hosting guests or enjoying quiet evenings under the stars.
Every detail was thoughtfully curated, including $15,000 in custom window treatments, professional tinting, high-end carpeting, and a 20-inch Big Gray whole-house carbon filtration system for purified water throughout.
Living in Loudoun Valley means access to resort-style amenities—pools, parks, a clubhouse, fitness center, and scenic trails. You’re minutes from Dulles Airport, the Ashburn Metro, Route 7, and the Dulles Greenway. Plus, shopping, dining, and entertainment are right around the corner.
This is more than a home—it’s a lifestyle upgrade. Schedule your private tour today!
Property Details
Home Type
- Condominium
Est. Annual Taxes
- $5,417
Year Built
- Built in 2020
HOA Fees
Parking
- 1 Car Direct Access Garage
- Rear-Facing Garage
- Garage Door Opener
- Driveway
- On-Street Parking
- Unassigned Parking
Property Views
- Panoramic
- Woods
Home Design
- Penthouse
- Contemporary Architecture
- Flat Roof Shape
- Masonry
Interior Spaces
- 2,768 Sq Ft Home
- Property has 3 Levels
- Double Pane Windows
- Window Screens
- Sitting Room
- Living Room
- Dining Room
- Den
Kitchen
- Double Oven
- Cooktop with Range Hood
- Built-In Microwave
- ENERGY STAR Qualified Refrigerator
- ENERGY STAR Qualified Dishwasher
- Disposal
Bedrooms and Bathrooms
- 3 Bedrooms
Laundry
- Laundry Room
- Laundry on upper level
- Dryer
- ENERGY STAR Qualified Washer
Schools
- Rock Ridge High School
Utilities
- Forced Air Heating and Cooling System
- Natural Gas Water Heater
- Public Septic
Additional Features
- Energy-Efficient Windows
- Suburban Location
Listing and Financial Details
- Assessor Parcel Number 123168013016
Community Details
Overview
- Association fees include all ground fee, common area maintenance, exterior building maintenance, lawn care front, lawn maintenance, management, pool(s), reserve funds, snow removal, taxes
- Low-Rise Condominium
- Built by Toll Brothers
- Loudoun Valley Carlisle Subdivision, Delanie Floorplan
Amenities
- Common Area
- Community Center
Recreation
- Community Basketball Court
- Community Playground
- Community Pool
- Bike Trail
Pet Policy
- Pets allowed on a case-by-case basis
Map
Home Values in the Area
Average Home Value in this Area
Tax History
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 |
---|---|---|---|---|
2024 | $5,417 | $626,270 | $170,000 | $456,270 |
2023 | $5,556 | $635,020 | $170,000 | $465,020 |
2022 | $5,415 | $608,420 | $160,000 | $448,420 |
2021 | $5,049 | $515,200 | $100,000 | $415,200 |
Property History
Date | Event | Price | Change | Sq Ft Price |
---|---|---|---|---|
07/23/2025 07/23/25 | For Sale | $690,000 | -1.1% | $249 / Sq Ft |
05/08/2025 05/08/25 | For Sale | $698,000 | +3.7% | $252 / Sq Ft |
12/21/2023 12/21/23 | Sold | $673,000 | -0.9% | $243 / Sq Ft |
11/12/2023 11/12/23 | Pending | -- | -- | -- |
11/10/2023 11/10/23 | For Sale | $679,000 | -- | $245 / Sq Ft |
Purchase History
Date | Type | Sale Price | Title Company |
---|---|---|---|
Deed | -- | Cardinal Title Group | |
Special Warranty Deed | $554,538 | Westminster Title Agency Inc |
Mortgage History
Date | Status | Loan Amount | Loan Type |
---|---|---|---|
Open | $570,350 | New Conventional | |
Previous Owner | $374,538 | New Conventional |
Similar Homes in Ashburn, VA
Source: Bright MLS
MLS Number: VALO2095334

APN: 123-16-8013-016
- 23582 Waterford Downs Terrace
- 43174 Wealdstone Terrace
- 23746 Hopewell Manor Terrace
- 23442 Logans Ridge Terrace
- 43102 Thoroughfare Gap Terrace
- 23465 Belvoir Woods Terrace
- 43089 Greeley Square
- 43078 Greeley Square
- 23367 Bymes Mill Terrace
- 23671 Hardesty Terrace
- 23675 Hardesty Terrace
- 23286 Southdown Manor Terrace Unit 108
- 23669 Golden Embers Square Unit 302
- 23630 Havelock Walk Terrace Unit 317
- 23630 Havelock Walk Terrace Unit 205
- 23640 Bolton Crescent Terrace Unit 13-105
- 23640 Bolton Crescent Terrace Unit 13-306
- 23640 Bolton Crescent Terrace Unit 13-305
- 23640 Bolton Crescent Terrace Unit 13-304
- 43244 Greeley Square
- 43131 Wealdstone Terrace Unit 43131 Wealdstone Terr
- 43144 Thoroughfare Gap Terrace
- 43138 Thoroughfare Gap Terrace
- 23479 Buckland Farm Terrace
- 43055 Thoroughfare Gap Terrace
- 23380 Bymes Mill Terrace
- 43242 Hattontown Woods Terrace
- 23286 Southdown Manor Terrace Unit 101
- 23235 Milltown Knoll Square Unit 115
- 23234 Evergreen Ridge Dr
- 43187 Loudoun Reserve Dr
- 23375 Lewis Hunt Square
- 43190 Whelplehill Terrace
- 43202 Whelplehill Terrace
- 43190 Loudoun Reserve Dr
- 43554 Freeport Place
- 23171 Hemmingford Cir
- 23073 Weybridge Square
- 42770 Conquest Cir
- 23605 Rose Leigh Terrace