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1701 18th Street NW , 401, Washington, DC 20009

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For Sale

$1,699,900

3 beds • 3 baths • 1,641 sqft

Estimated Payment

$      /mo. †

APR for 30 years

Change Loan Terms

  • Condominium
    Property type

  • Newly Listed
    Time on Century 21

  • 1906
    Year built

  • $1,035.89
    Price per square foot

Explore this Property

The Duncan Penthouse | Where Historic Charm Meets Modern Urban LivingExperience boutique living at its best in this rare two-level, three-bedroom, three-bath penthouse at The Duncan, an exclusive nine-residence condominium steeped in architectural history. Originally built in 1906 by Hornblower & Marshall and reimagined for contemporary living, The Duncan offers a perfect balance of timeless craftsmanship and modern sophistication.Residence 401 impresses from the moment you enter " with 15-foot vaulted ceilings, dramatic natural light from three exposures and skylights, and warm maple flooring throughout. The spacious living area centers around a wood-burning fireplace, creating the perfect backdrop for elegant entertaining or quiet evenings at home.The chef's kitchen showcases Sub-Zero and Wolf appliances, wrap-around cabinetry, and expansive prep space, seamlessly connecting to the living and dining areas. Two wet bars, each with a wine cooler " one on the main level and another off the private roof terrace " make entertaining effortless indoors or out.The primary suite offers a serene escape with radiant-heated bathroom floors, generous closets, and abundant natural light. Two additional bedrooms and full baths provide flexible space for guests, work, or leisure.Enjoy panoramic city views from your private roof deck " ideal for al fresco dining or sunset cocktails. Additional amenities include secure garage parking, private storage, in-unit laundry, elevator access, and pet-friendly living.Perfectly positioned in the heart of Dupont Circle, The Duncan Penthouse puts you steps from the Red Line Metro, acclaimed restaurants, caf s, shops, and vibrant nightlife. With a Walk Score of 98, this penthouse combines rare privacy, refined scale, and one of DC's most coveted addresses.
MLS# DCDC2222528

Listed By CENTURY 21 Redwood Realty

Open Houses

November

8

Saturday

In Person

Saturday, November 8, 2025

1:00PM - 3:00PM

November

9

Sunday

In Person

Sunday, November 9, 2025

1:00PM - 3:00PM

Property Features

  • Appliances
    Dishwasher, Dryer, Garbage Disposal, Refrigerator, Washer
  • Cooling
    Central A/C
  • Exterior
    Double Pane / Storm Windows
  • Exterior Description
    Brick
  • Flooring
    Hardwood
  • General
    Elevator, Skylight, Ceiling Fan(s), Window Treatments
  • Heating Type
    Forced Air
  • Interior
    Walk-in Closet
  • Kitchen Features
    Gourmet Kitchen
  • Rent Includes
    Sewer, Trash Removal, Water
  • Sewer
    Public
  • Style
    Other Style
  • Views
    City / Strip
  • Water
    City Water

Home seller Meet the Agent,
Christopher Sanders

Get to know the neighborhood. A local affiliated CENTURY 21 agent will help you set up tours, give advice, and negotiate with sellers.

Christopher Sanders

of CENTURY 21 Redwood Realty

License: 634294
(703) 447-0440
Learn More About Me

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Monthly Payment Breakdown

  • Principle and Interest
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  • Property Taxes
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  • Hazard Insurance
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  • Private Mortgage Insurance
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  • HOA Dues
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  • Total Monthly Payment:
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Calculators provided for estimating purposes only. Consult with your lender to determine precise payment requirements.

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This information is provided for general informational purposes only and should not be relied on in making any home-buying decisions. School information does not guarantee enrollment. Contact a local real estate professional or the school district(s) for current information on schools. This information is not intended for use in determining a person's eligibility to attend a school or to use or benefit from other city, town or local services.

† Based on a 30-year fixed rate of 3.38% with 20% down. The estimated payment is offered for convenience and is not an offer of credit. Due to market fluctuations, interest rates are subject to change at any time and without notice. Interest rates are also subject to credit and property approval based on secondary market guidelines. The rates shown are based on average rates for our best qualified customers. Your individual rate may vary. Rates may differ for FHA, VA or jumbo loans.