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Sold for $9,827,000
  • $9,827,000

    3508 Prospect St NW, Washington, DC 20007

    8beds
    9,086sqft
    Single Family Residence
    Built in 1787
    0.43 Acres Lot
    $9,746,000 Zestimate®
    $1,082/sqft
    $4,407 Estimated rent

    Home value

    $9,746,000

    $9.26M - $10.23M

    $4,407/mo

    Zestimate® history
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    $56,953/mo

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    What's special

    Thought to be designed by William Thornton, the architect of the U.S. Capitol, and long considered one of the most architecturally and historically significant properties in the city of Washington, Prospect House was built between 1787 and 1793 and sits high above the Potomac River at 3508 Prospect Street in Georgetown. This red brick Georgian-Federal house has been a show place for politicians and statesmen since Revolutionary War days, and is sited on nearly half an acre of beautifully manicured formal English gardens.  Among many renowned owners over the years, the property was the home of the first Secretary of Defense, James V. Forrestal, and during the Truman Administration Prospect House served as The White House Guest House for visiting dignitaries. Presidents Washington and Adams, the Marquis de Lafayette, the Shah of Iran, the President of France, and the poet Robert Frost have all been guests of Prospect House. The first floor of this 9,000+ square foot residence includes 12-foot ceilings; a formal entrance hall; a double parlor living room with twin Adams fireplaces, a Jefferson window, and a bay window overlooking the gardens; a banquet-sized dining room with a fireplace and river views; a gallery hall; an ample-sized eat-in kitchen, a powder room and a veranda.  Upstairs are 7 large bedrooms -- several with river views -- a sitting room and 5 full baths. A lovely library opening to the garden, a home office, an 8th bedroom and a full bath make up the lower level.  The property includes a 41-foot swimming pool and an octagonal watch tower where one of the early owners watched his boats come into Georgetown Harbor.  A garage and additional parking for 3 cars complete this extraordinary offering. Prospect House has been well-maintained and improved by its current owners, who, in the last few years, have replaced the roof; the plumbing, heating and air conditioning systems; and rebuilt all of the windows.

    Zillow last checked: 8 hours ago

    Listing updated: October 24, 2025 at 07:59am

    Listed by:

    KIMBERLY Gibson 202-256-3628,

    Washington Fine Properties, LLC,

    Co-Listing Agent: Eileen Mcgrath 202-253-2226,

    Washington Fine Properties, LLC

    Bought with:

    Daniel Heider, SP98372854

    TTR Sotheby's International Realty

    Source: Bright MLS,MLS#: DCDC2129376MLS Logo

    Facts & features

    Interior

    Bedrooms & bathrooms
    • Bedrooms: 8
    • Bathrooms: 7
    • Full bathrooms: 6
    • 1/2 bathrooms: 1
    • Main level bathrooms: 1
    Basement
    • Area: 0
    Heating
    • Radiator, Natural Gas
    Cooling
    • Central Air, Electric
    Appliances
    • Included: Electric Water Heater
    Features
    • 9'+ Ceilings, High Ceilings, Plaster Walls
    • Flooring: Hardwood
    • Basement: Full,Connecting Stairway,Finished,Heated,Improved,Interior Entry,Exterior Entry,Rear Entrance,Side Entrance,Walk-Out Access
    • Number of fireplaces: 10
    Interior area
    • Total structure area: 9,086
    • Total interior livable area: 9,086 sqft
    • Finished area above ground: 9,086
    • Finished area below ground: 0

    Property

    Parking
    • Total spaces: 6
    • Parking features: Garage Faces Front, Attached, Driveway
    • Attached garage spaces: 3
    • Uncovered spaces: 3
    Accessibility
    • Accessibility features: None
    Features
    • Levels: Four
    • Stories: 4
    • Has private pool: Yes
    • Pool features: Private
    Lot
    • Size: 0.43 Acres
    • Features: Urban Land-Manor-Glenelg
    Details
    • Additional structures: Above Grade, Below Grade
    • Parcel number: 1203//0035
    • Zoning: RESIDENTIAL
    • Special conditions: Standard

    Construction

    Type & style
    • Home type: SingleFamily
    • Architectural style: Federal,Georgian
    • Property subtype: Single Family Residence
    Materials
    • Brick
    • Foundation: Stone, Brick/Mortar
    • Roof: Slate
    Condition
    • Excellent
    • New construction: No
    • Year built: 1787

    Utilities & green energy

    • Sewer: Public Septic
    • Water: Public

    Community & neighborhood

    Security
    • Security features: Exterior Cameras, Security System
    Location
    • Region: Washington
    • Subdivision: Georgetown

    Other

    Other facts
    • Listing agreement: Exclusive Right To Sell
    • Ownership: Fee Simple

    Price history

    DateEventPrice
    10/24/2025Sold$9,827,000-21.4%$1,082/sqft
    Source: Bright MLS #DCDC2129376 Report a problem
    9/23/2025Pending sale$12,500,000$1,376/sqft
    Source: Bright MLS #DCDC2129376 Report a problem
    8/26/2025Contingent$12,500,000$1,376/sqft
    Source: Bright MLS #DCDC2129376 Report a problem
    10/25/2024Price change$12,500,000-21.9%$1,376/sqft
    Source: Bright MLS #DCDC2129376 Report a problem
    2/28/2024Listed for sale$15,995,000$1,760/sqft
    Source: Bright MLS #DCDC2129376 Report a problem

    Public tax history

    YearProperty taxesTax assessment
    2025$56,665 +13.2%$6,041,480 +2.6%
    2024$50,071 +1.4%$5,890,710 +1.4%
    2023$49,381 +2.8%$5,809,550 +2.8%

    Find assessor info on the county website

    Neighborhood: Georgetown

    Nearby schools

    GreatSchools rating
    Schools provided by the listing agent
    • District: District Of Columbia Public Schools

    Source: Bright MLS. This data may not be complete. We recommend contacting the local school district to confirm school assignments for this home.

    Sell for more on Zillow
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    $9,746,000
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    With Zillow Showcase(estimated)$9,940,920