• Price$7,750,000
  • Beds9
  • Baths10
  • Sq. Ft.6,433
  • Acres0.13
  • Built1798

3425 Prospect St Nw, WASHINGTON

This elegant Georgetown mansion has a long history of hosting Senators and Presidents. Built in 1797 by John Mason (nephew of George Mason) and named ~Quality Hill~ by its subsequent owner. The house has been meticulously renovated and features over 10,000 sq ft (est) with 9 bedrooms and 11 baths. Each room has a preserved sense of history with modern updates.


Essential Information

  • MLS® #DC8374584
  • Price$7,750,000
  • Bedrooms9
  • Bathrooms9.50
  • Full Baths8
  • Half Baths3
  • Square Footage6,433
  • Acres0.13
  • Year Built1798
  • TypeResidential
  • Sub-TypeDetached
  • StyleFederal
  • StatusActive


  • AmenitiesBuilt-in Bookcases, 2 Attach Mstr Baths, Cedar Closet, Crown Molding, Double Vanities, Double/Dual Staircase, Elevator, FP Mantels, Master Walk-in Closet, Sauna, Steam Shower, Tub-Soaking, Walk-in Closet(s), Water Closet, Wood Floors
  • ParkingOther


  • ExteriorBrick and Siding, Brick


  • Condo Fee$0

Listing Details

  • Listing OfficeTtr Sotheby's International Realty

Community Information

  • Address3425 Prospect St Nw
  • SubdivisionGEORGETOWN
  • StateDC
  • Zip Code20007


  • HeatingBaseboard, Forced Air, Radiant
  • CoolingCentral A/C
  • Has BasementYes
  • BasementFully Finished
  • FireplaceYes
  • # of Fireplaces7
  • # of Stories4
  • Heating FuelNatural Gas
  • Cooling FuelElectric
  • Hot WaterNatural Gas

Additional Information

  • Date ListedJune 11th, 2014
  • Days on Market955
  • HOA Fee$0
  • Property Taxes$45,848


  • DirectionsTurn right onto Prospect from Wisconsin. House on the corner of 35th and Prospect Street.
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Listing information last updated on January 21st, 2017 at 10:30pm EST.