3425 Prospect Street Northwest

Closed 8/20/18

Sold

Last Sold Price

$6,731,709

9 beds11 baths

3425 Prospect St NW, Washington, DC 20007

Single FamilyProperty Type

0.13 acresLot Size

1798Year Built

Description

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.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.

Listed by: Russell A Firestone III 202.271.1701 russell.firestone@sothebysrealty.com • TTR Sotheby's International Realty

Listing closed: 08/20/2018 12:00 AM • Source: BRIGHT, MLS#: 1000122669

Recent comparable sales

Median sold price

$5,406,000

Avg days on market

181

Sale-to-list ratio

88.6%

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$7,900,000

Sold 07/24/26

8
Bedrooms: 10
Bathrooms: 13,972
Square Feet: 0.35
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a front view of a residential apartment building with a yard

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Bedrooms: 5
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Square Feet: 0.07
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1720 Massachusetts Avenue Northwest, Washington, DC 20036

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Bedrooms: 10
Bathrooms: 8,800
Square Feet: 0.31
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Bathrooms: 7,269
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Bedrooms: 9
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Bedrooms: 9
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Location

Listing Courtesy of TTR Sotheby's International Realty

Sold By Washington Fine Properties, LLC

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$38,607 per month

30 year fixed, 6.71% Interest

Principal and Interest

$34,786

Property Taxes

$3,821

HOA Dues

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Property Information for 3425 Prospect Street Northwest

Property Details

Taxes: $45,848 / year
MLS Type: Residential / Fee Simple
County: District of Columbia
Tax ID Number: 1221//0096
Ownership: Fee Simple
Condo Coop Association: No
HOA: No
Structure Type: Detached
Style: Federal
Levels/Stories: 3+
Waterfront: No
Garage: No
Subdivision: GEORGETOWN
Subdivision: GEORGETOWN (WASHINGTON DC)
Legal Subdivision: GEORGETOWN
Central Air: Yes
Basement: Yes
New Construction: No

Building Information

Year Built: 1798
Lot Size: 0.13 AC / 5,757 SF

Location

In City Limits: Yes
County: WASHINGTON

Waterfront / Water Access

Water View: No
Water Access: No

Water Oriented: No
Navigable Water: No
Tidal Water: No
Riparian Rights Y/N: No

Association / Community Info

Senior Community: No

Taxes and Assessment

Tax Year: 2013
Tax Assessed Value: $5,393,850

Year Assessed: 2013
Improvement Assessed Value: $4,346,250
City Town Tax: $45,848
Land Assessed Value: $1,047,600
Historic: Yes
Tax Lot: 96

Lease Information

Concessions: No
Concessions Amount: $0

Rooms

Main

# Bedrooms Count Main Level: 0
# Bathrooms Count Main Level: 1

# Bathrooms Full Main Level: 0
# Bathrooms Half Main Level: 1

Upper Level 1

# Bedrooms Count Upper Level: 3
# Bathrooms Count Upper Level: 4

# Bathrooms Full Upper Level: 3
# Bathrooms Half Upper Level: 1

Upper Level 2

# Bedrooms Count Upper Level: 3
# Bathrooms Count Upper Level: 2

# Bathrooms Full Upper Level: 2
# Bathrooms Half Upper Level: 0

Lower Level 1

# Bedrooms Lower Level: 3
# Bathrooms Lower Level: 4

# Bathrooms Full Lower Level: 3
# Bathrooms Half Lower Level: 1

Lower Level 2

# Bedrooms Lower Level: 0
# Bathrooms Full Lower Level: 0

# Bathrooms Half Lower Level: 0

Rooms

Stories: Lower 1, Lower 2, Main, Upper 1, Upper 2

Building Info

Tax Total Finished SQFT: 6,433.00
Total Finished SQFT Units: Square Feet

Construction Materials: Combination, Brick
Ext Main Mid-res: http://bright-media.brightmls.com/bright/images/0000/3008/1552/8010/300815528010_512_384_WM_wJ56WFytV5jXYPOB.jpg
Basement Type: Outside Entrance, Fully Finished
Room and Floor: Bathrooms Half-Main Level-1, Bedrooms-Upper Level 1-1, Bedrooms-Upper Level 1-2, Bedrooms-Upper Level 1-3, Bedrooms-Lower Level 1-1, Bedrooms-Lower Level 1-2, Bedrooms-Lower Level 1-3, Bathrooms Full-Upper Level 1-1, Bathrooms Full-Upper Level 1-2, Bathrooms Full-Upper Level 1-3, Bathrooms Full-Lower Level 1-1, Bathrooms Full-Lower Level 1-2, Bathrooms Full-Lower Level 1-3, Bathrooms Half-Upper Level 1-1, Bathrooms Half-Lower Level 1-1, Bedrooms-Upper Level 2-1, Bedrooms-Upper Level 2-2, Bedrooms-Upper Level 2-3, Bathrooms Full-Upper Level 2-1, Bathrooms Full-Upper Level 2-2
# Bathrooms Full: 8
# Bathrooms Half: 3
Property Attached Y/N: false

Lot / Land Information

Lot Size Area: 5,757.00
Soil Types: Urban Land-Sassafras-Chillum

Parcel ID: 16158992

Parking

Type Of Parking: Other

Interior Features

Interior Features: Kitchen - Gourmet, Kitchen - Island, Kitchen - Eat-In, Built-Ins, Primary Bath(s), Crown Moldings, Double/Dual Staircase, Elevator, Sauna, Wood Floors
Fireplace: Yes

Fireplaces Count: 7
Fireplace Features: Mantel(s)
Accessibility Features: Elevator
Virtual Tour URL Unbranded: http://tour.homevisit.com/mls/77190/3425-PROSPECT-ST-NW-WASHINGTON-DC-20007

Exterior Features

Pool: No Pool
Pool Private: No

Utilities

Heating: Yes
Cooling: Yes

Cooling Type: Central A/C
Cooling Fuel: Electric
Heating Type: Forced Air, Radiant, Baseboard - Hot Water
Heating Fuel: Natural Gas
Hot Water: Natural Gas
Water Source: Public
Sewer Septic: Public Sewer

Confidential Data

Listing Office

List Agent AOR: Greater Capital Area Association of REALTORS

Property History for 3425 Prospect Street Northwest

Date	Event & Source	Price	Appreciation
Aug 20, 2018	Closed BRIGHT #1000122669	$6,731,709	—
Aug 13, 2018	Closed (Public Record) Public Record #629053949	$6,731,709	+3.9% / yr
Dec 20, 2017	Pending BRIGHT #1000122669		—
Jun 11, 2014	Listed (Active) BRIGHT #1000122669	$11,000,000	—
May 15, 2004	Closed (Public Record) Public Record #243682971	$3,900,000	—
May 14, 2004	Closed BRIGHT #DCDC199336	$3,900,000	—
Jan 15, 2004	Pending BRIGHT #DCDC199336		—
Oct 4, 2002	Listed (Active) BRIGHT #DCDC199336	$4,200,000	—
Jan 2, 2001	Withdrawn BRIGHT #DCDC376840	$6,000,000	—
Jan 2, 2001	Listed (Active) BRIGHT #DCDC376840	$6,000,000	—

Date	Event & Source	Price
08/20/2018	Closed BRIGHT #1000122669	$6,731,709
08/13/2018	Closed (Public Record) Public Record #629053949	$6,731,709 +3.9% / yr
12/20/2017	Pending BRIGHT #1000122669	—
06/11/2014	Listed (Active) BRIGHT #1000122669	$11,000,000
05/15/2004	Closed (Public Record) Public Record #243682971	$3,900,000
05/14/2004	Closed BRIGHT #DCDC199336	$3,900,000
01/15/2004	Pending BRIGHT #DCDC199336	—
10/04/2002	Listed (Active) BRIGHT #DCDC199336	$4,200,000
01/02/2001	Withdrawn BRIGHT #DCDC376840	$6,000,000
01/02/2001	Listed (Active) BRIGHT #DCDC376840	$6,000,000

For completeness, we often displays two records for one sale: the MLS record and the public record.

Public Records for 3425 Prospect Street Northwest

Taxable ValueLand$1,772,750Additions$5,386,970Total$7,159,720

Tax Record2025$67,847 ($5,654 / month)

Home Facts

Beds9Baths9.5Total Finished SqFt6,593 SqFtAbove Grade Finished SqFt6,593 SqFtStories3Lot Size5,757 SqFtStyleSingle Family ResidenceYear Built1797Year Renovated2004ZoningR-3/GTCountyDISTRICT OF COLUMBIAAPN1221 0096Fireplace TypeHas Fireplace

Schools near 3425 Prospect Street Northwest

This home is within District Of Columbia Public Schools.


Rating	School	Type	Grades	Distance
8/10	Hyde-Addison Elementary School	Public - Serves this home	PK to 5	0.3 mi
9/10	Hardy Middle School	Public - Serves this home	6 to 8	0.7 mi
5/10	MacArthur High School	Public - Serves this home	9 to 11	0.9 mi
8/10	Duke Ellington School of the Arts	Public - Choice school	9 to 12	0.5 mi
9/10	School Without Walls High School	Public - Choice school	9 to 12	1.3 mi
9/10	Benjamin Banneker High School	Public - Choice school	9 to 12	2.4 mi
NR	Holy Trinity Catholic School	Private - Nearby school	PK to 8	0.1 mi
NR	Georgetown Visitation Preparatory School	Private - Nearby school	9 to 12	0.3 mi
NR	Washington International School - Tregaron Campus	Private - Nearby school	PK to 12	0.5 mi


Rating	School	Distance
8/10	Hyde-Addison Elementary School PublicPK to 5 Serves this home	0.3 mi
9/10	Hardy Middle School Public6 to 8 Serves this home	0.7 mi
5/10	MacArthur High School Public9 to 11 Serves this home	0.9 mi
8/10	Duke Ellington School of the Arts Public9 to 12 Choice school	0.5 mi
9/10	School Without Walls High School Public9 to 12 Choice school	1.3 mi
9/10	Benjamin Banneker High School Public9 to 12 Choice school	2.4 mi
NR	Holy Trinity Catholic School PrivatePK to 8 Nearby school	0.1 mi
NR	Georgetown Visitation Preparatory School Private9 to 12 Nearby school	0.3 mi
NR	Washington International School - Tregaron Campus PrivatePK to 12 Nearby school	0.5 mi

School ratings and boundaries are provided by GreatSchools.org and Pitney Bowes. This information should only be used as a reference. Proximity or boundaries shown here are not a guarantee of enrollment. Please reach out to schools directly to verify all information and enrollment eligibility.

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Nearby home values

Address	Sold price	Beds	Baths	Sqft	Lot (Sqft)
This home: 3425 Prospect Street Northwest, Washington, DC 20007	$6,731,709	9	11	–	5,757
3419 Prospect Street Northwest, Washington, DC 20007	–	4	4	2,625	–
3417 Prospect Street Northwest, Washington, DC 20007	$3,075,000	4	4	2,780	2,419
3421 Prospect Street Northwest, Washington, DC 20007	$1,265,770	2	3	2,348	2,163
3415 Prospect Street Northwest, Washington, DC 20007	$1,338,000	2	3	–	2,205
1245 35th Street Northwest, Washington, DC 20007	–	3	1	1,032	–
3413 Prospect Street Northwest, Washington, DC 20007	$90,210	–	–	–	–
1247 35th Street Northwest, Washington, DC 20007	$750,000	2	1	–	576
3424 Prospect Street Northwest, Washington, DC 20007	–	2	1	1,048	–
3418 Prospect Street Northwest, Washington, DC 20007	$1,975,000	3	4	2,976	2,100
3422 Prospect Street Northwest, Washington, DC 20007	$710,000	2	1	–	813
3426 Prospect Street Northwest, Washington, DC 20007	$1,250,000	3	2	2,145	–
1249 35th Street Northwest, Washington, DC 20007	$500,000	2	2	–	576
3420 Prospect Street Northwest, Washington, DC 20007	$926,500	2	1	1,048	813
1251 35th Street Northwest, Washington, DC 20007	$520,000	2	1	–	576
1253 35th Street Northwest, Washington, DC 20007	$490,000	2	1	–	576

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No guarantee, warranty or representation of any kind is made regarding the completeness or accuracy of any information, descriptions or measurements (including square footage measurements and property condition), such should be independently verified through appropriate means, including, but not limited to, in person inspection and public records, and Compass International Holdings, its subsidiaries, affiliates and independently owned and operated franchisees, and their affiliated agents and associated third parties expressly disclaim any liability in connection therewith. Photos may be virtually staged or digitally enhanced and may not reflect actual property conditions. Offers of compensation are subject to change at the seller's discretion. No financial or legal advice provided. Equal Housing Opportunity.

Listing Courtesy of TTR Sotheby's International Realty

© 2026 Bright MLS. All rights reserved. All information is deemed reliable, but accuracy is not guaranteed. Listing information is from various brokers who participate in IDX and not all listings may be visible on the site. The property information being provided is for the consumer’s personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Data last updated on 07/28/2022 04:41 PM

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