Spicer Real Estate
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3400 PROSPECT STREET, Washington, DC 20007
3400 PROSPECT STREET, Washington, DC 20007
$29,500,000
Active Active
DC,Washington

Location 3400 PROSPECT STREET, Washington, DC 20007

  • Sqft 30,000 Sqft SQFT
  • Bed 5
  • Bath 9
Basic Details Basic Details
Description

Extraordinary Halcyon House! Over 30,000 square feet in this historically designated mansion overlooking the Potomac River. Sited on a dominant 1/2-acre hill. Once owned and expanded by Mark Twain’s nephew. Masterful restoration-pristine condition. Most appropriate for either a single family or a qualified non-profit group. *REGISTRATION FORM REQUIRED

Basic Details
  • Property Type: Residential
  • Listing Type: Active
  • Listing ID: DCDC2242506
  • Price: $29,500,000
  • View: Water
  • Bedrooms: 5
  • Bathrooms: 9
  • Sqft: 30,000 Sqft
  • Year Built: 1787
  • Lot Area: 0.51 Acre
  • Location: US, DC, WASHINGTON-DC, Washington, GEORGETOWN, 20007
  • Structure Type: Detached
  • Heating System: Forced Air
  • Cooling System: Central A/C
  • Basement: Outside Entrance, Connecting Stairway, Daylight, Full, Fully Finished, Heated, Improved, Rear Entrance, Walkout Level
  • Fireplace: Mantel(s)
  • Patio: Roof, Terrace
  • Parking: Parking Space Conveys
  • Full Bathrooms: 9
  • Listing Status: Active
  • Roof: Slate
Features & Appliances
Features
  • Architectural Style: Federal
  • Exterior Features: Secure Storage
  • Fireplaces Total: 9
  • Interior Features: Butlers Pantry, Kitchen - Gourmet, Dining Area, Built-Ins, Double/Dual Staircase, Upgraded Countertops, Primary Bath(s), Wet/Dry Bar, Wood Floors, Floor Plan - Traditional
  • Sewer: Public Sewer

Appliances
  • Appliances: Washer/Dryer Hookups Only, Cooktop, Dishwasher, Disposal, Dryer, Icemaker, Intercom, Oven - Double, Oven/Range - Electric, Washer
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Neighborhood Neighborhood
  • Elementary School: HYDE-ADDISON
  • High School: WILSON SENIOR
  • Middle School: HARDY
MLS Addon MLS Addon
  • Office Name: Compass
  • Agent Name: Mark D McFadden
Additional Information Additional Information
  • Water Source: Public
  • Water Body Name: POTOMAC RIVER
  • Accessibility Features: None
  • Construction Materials: Brick, Stone
  • Foundation Details: Other
  • Garage: 12.0
  • Levels: 3.5
  • Lot Features: Premium
  • On Market Date: 2026-01-22
Financial Financial
  • Tax Annual Amount: 202530.0
Listing Information Listing Information
  • Co List Agent Full Name: Cameron H McFadden
  • Co List Office Name: Compass
  • Originating System Name: Bright
  • Co List Agent Mls Id: 3106438
  • Co List Office Mls Id: COMPS4
  • List Agent Mls Id: 18377
  • List Office Mls Id: COMPS4
  • MLS Status: ACTIVE-BRIGHT
  • Modification Timestamp: 2026-01-23T02:51:33Z
  • Status Change Timestamp: 2026-01-22T05:00:00Z
Rob Spicer Broker, GRI Rob Spicer Broker, GRI Spicer Real Estate

7201 Wisconsin Avenue

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