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520 N Street SW S318Washington, DC 20024

For Sale

$389,000

Smart Buyer Rebate - Ask

Live on the water just moments from The Wharf in this mid-century modern co-op featuring a spacious private balcony in the heart of the Southwest Waterfront. This special one-bedroom corner residence is filled with natural light, showcasing floor-to-ceiling windows and two sets of sliding glass doors that open onto an expansive corner balcony—perfect for relaxing or entertaining.

Offering approximately 810 square feet, the home features natural hardwood floors throughout, highlighting the care and quality invested in the space. The renovated kitchen offers ample cabinet and counter space, along with a brand-new cooktop (2021), stainless steel refrigerator, wall oven & microwave plus a dishwasher making meal preparation both easy and enjoyable.

Harbour Square delivers luxury-level amenities, including an indoor swimming pool, fitness center, club room, bike room, and an extraordinary rooftop deck with panoramic 360-degree views of DC, Virginia, and Maryland. The rooftop provides a peaceful setting for meditation or socializing and is one of the city’s best vantage points for Fourth of July and Cherry Blossom fireworks.

Residents enjoy a welcoming 24/7 gatehouse and concierge staff, along with utilities, high-speed internet, cable, property taxes, gas grills, storage lockers, laundry facilities, EV charging stations, a car wash station, library, quiet telework space, fully equipped meeting rooms, and even a woodworking hobby shop.

Ideally positioned just two blocks from The Wharf, you’ll enjoy easy access to DC’s premier dining, nightlife, entertainment, and waterfront activities. The Waterfront Metro (Green Line) and Safeway are within a couple blocks, making commuting and daily errands effortless.

Harbour Square offers exceptional amenities, including 24-hour gatehouse security, an indoor swimming pool, fitness center, library, and a rooftop deck with sweeping water and monument views. The monthly co-op fee provides comprehensive coverage, including electricity, water, trash, Xfinity high-speed internet service, and cable TV.

The co-op fee of $1,372.24 breaks down with operating expenses ($833.04) includes utilities ($312.72) and Xfinity TV and High-speed Internet ($57.28). Property taxes ($159.92), and $379.28 capital reserves. Harbour Square is a well-managed cooperative with no underlying mortgage and a 90-year capitalization plan, ensuring the building remains modern and in excellent condition. Underground garage parking and bicycle storage are available for an additional fee. Garage parking is available for rent at $165 per month for a single space or $235 per month for tandem, and EV charging stations are available for added convenience.

Enjoy even more dining, retail, and entertainment just outside your door. Spend weekends exploring festivals, concerts, and sporting events at The Wharf, Nationals Park or Audi Field. Navy Yard, Arena Stage, Titanic Memorial Waterfront Park, and more are all nearby. The Waterfront Metro (Green Line) is just two blocks away, with L’Enfant Plaza Metro (Blue, Yellow, Green, and Orange Lines) just a few blocks further, providing easy access to Virginia and Maryland via I-395 and I-695.

This is a rare opportunity to own a truly special waterfront residence—schedule your showing today.

Listed by Wendy Wright

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License #SP200205076

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KW Metro Center

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7038677666

Last updated March 11, 2026

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Source: BrightMLS #DCDC2224190

Listing Facts

  • TypeCo-op
  • NeighborhoodSouthwest Waterfront
  • Bedrooms1
  • Bathrooms1
  • Days on Prevu5
  • Size810 sqft
  • Price per sqft$480

Amenities

  • Concierge
  • Elevator
  • Parking
  • Pool - Indoor
  • Fitness Center

Location

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Listing History

03/11/2026
Listed by KW Metro Center
$389,000

Property Details for 520 N Street SW S318

Association

Amenities

  • Association Amenities: Cable, Club House, Common Grounds, Concierge, Elevator, Exercise Room, Extra Storage, Fitness Center, Game Room, Laundry Facilities, Library, Meeting Room, Picnic Area, Pool - Indoor, Reserved/Assigned Parking, Security, Swimming Pool
  • Pets Allowed: Case by Case Basis,Cats OK,Dogs OK

Fees

  • Association Fee 2: $1,372.24 Monthly
  • Association Fee Includes: A/C Unit(s), Air Conditioning, Alarm System, Cable TV, Common Area Maintenance, Custodial Services Maintenance, Electricity, Ext Bldg Maint, Heat, High Speed Internet, Laundry, Lawn Maintenance, Management, Pest Control, Sewer, Snow Removal, Taxes, Trash, Water

Exterior

Construction

  • New Construction: No
  • Year Built: 1966
  • Architectural Style: Mid-Century Modern, Unit/Flat
  • Building Name: HARBOUR SQUARE
  • Construction Materials: Concrete, Brick, Other
  • Entry Level: 3

Features

  • Other Structures: Above Grade
  • Waterfront: No

Financial

Taxes

  • Tax Year: 2025

Interior

Measurements

  • Living Area: 810
  • Living Area Source: Estimated

Rooms

  • Has Basement: No
  • Bathrooms Full: 1
  • Bathrooms Total Integer: 1
  • Bedrooms Total: 1
  • Main Level Bedrooms: 1

Other

General

  • Senior Community: No

Location

  • Subdivision Name: SW WATERFRONT

Parking

Parking

  • Garage: No
  • Parking Features: Assigned, On-site - Rent

Utilities

Equipment

  • Cooling: Central A/C
  • Heating: Forced Air
  • Has Heating: Yes
  • Sewer: Public Septic,Public Sewer
  • Water Source: Public

Frequently Asked Questions

How many bedrooms and bathrooms does this co-op have?

There is 1 bedroom and 1 bathroom in this co-op at 520 N Street SW S318.

How does 520 N Street SW S318 compare to other co-ops in Southwest Waterfront?

This co-op is listed 6% above the average price for co-ops in Southwest Waterfront and has been on the market for 91 less days than the typical home in this area.

What building or home owners association is the co-op part of?

This co-op is in the HARBOUR SQUARE building.

What is the square footage on this co-op?

According to the MLS, this listing is 810 sqft.

520 N Street SW S318 is a 1-bedroom, 1-bath co-op for sale in WASHINGTON DC 20024. On Prevu for 5 days at $389,000. This property features 810 square feet of living space, located in Southwest Waterfront. The median listing price for co-ops in this area is $427,000. Additional amenities include concierge, elevator, fitness center, parking, and pool - indoor. Explore more co-op listings in Washington.

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Full MLS Disclaimers

Rebate estimate is indicative only and based on listing price and estimated buyer's agent commission paid by owner, if applicable. Final rebates are subject to Terms of Use and may vary due to final negotiated transaction terms.