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    • Special offer

    Lydian

    400 K St, Washington, DC 20001

    • Special offer! Please contact the leasing office for current move-in specials.
    Apartment building
    Studio-1 bed
    Pet-friendly
    Other parking
    In-unit laundry (W/D)

    What’s available

    Price may not include required fees and charges.
    Studio, 1 ba
    $2,301-2,401
    657 sqft

    1 unit avail. now | 3 avail. Sep 12-Oct 5

    Price: $2,301Available: Available Sep 12 2025Unit: Unit 519
    Price: $2,321Available: Available NowUnit: Unit 619
    Price: $2,331Available: Available Oct 5 2025Unit: Unit 819
    Price: $2,401Available: Available Sep 20 2025Unit: Unit 1319
    Studio, 1 ba
    $2,391
    589 sqft

    1 unit available Oct 5

    1 bd, 1 ba
    $2,256
    574 sqft

    1 unit available Nov 8

    1 bd, 1 ba
    $2,640-2,685
    744 sqft

    1 unit avail. now | 1 avail. Oct 13

    Price: $2,640Available: Available NowUnit: Unit 224
    Price: $2,685Available: Available Oct 13 2025Unit: Unit 524
    1 bd, 1 ba
    $2,740
    768 sqft

    1 unit available Sep 13

    1 bd, 1 ba
    $2,755
    718 sqft

    1 unit available now

    1 bd, 1 ba
    $2,760
    718 sqft

    1 unit available Oct 15

    1 bd, 1 ba
    $2,780-2,890
    756 sqft

    1 unit avail. now | 4 avail. Sep 24-Oct 23

    Price: $2,780Available: Available Sep 26 2025Unit: Unit 705
    Price: $2,800Available: Available NowUnit: Unit 907
    Price: $2,820Available: Available Oct 23 2025Unit: Unit 1105
    Price: $2,830Available: Available Sep 24 2025Unit: Unit 1205
    Price: $2,890Available: Available Oct 1 2025Unit: Unit 1407
    1 bd, 1 ba
    $2,800-2,955
    718 sqft

    1 unit avail. now | 1 avail. Oct 23

    Price: $2,800Available: Available NowUnit: Unit 321
    Price: $2,955Available: Available Oct 23 2025Unit: Unit 1321
    1 bd, 1 ba
    $2,805
    718 sqft

    1 unit available Sep 19

    1 bd, 1 ba
    $2,860
    784 sqft

    1 unit available Oct 5

    1 bd, 1 ba
    $2,905-3,015
    759 sqft

    1 unit avail. now | 3 avail. Sep 5-Oct 8

    Price: $2,905Available: Available Oct 8 2025Unit: Unit 610
    Price: $2,905Available: Available Oct 5 2025Unit: Unit 711
    Price: $2,985Available: Available Sep 5 2025Unit: Unit 1211
    Price: $3,015Available: Available NowUnit: Unit 1310
    1 bd, 1 ba
    $2,940
    718 sqft

    1 unit available Sep 24

    1 bd, 1 ba
    $2,955
    802 sqft

    1 unit available Oct 5

    1 bd, 1 ba
    $3,357-3,482
    991 sqft

    3 units available now

    Price: $3,357Available: Available NowUnit: Unit 303
    Price: $3,452Available: Available NowUnit: Unit 903
    Price: $3,482Available: Available NowUnit: Unit 1203

    What's special

    Swimming pool
    Cool down on hot days
    This building features access to a pool. Only 16% of buildings in Washington have this amenity.
    Live in a place where adventurers meet advancers. Where serious thinking is matched with serious fun. Where strong bodies embrace wellness. Where great books spark even better conversations. Where people are interested in your ideas and your Instagram handle. Where neighbors are joined by a lust for life and new experiences. It all comes perfectly together in the heart of Downtown DC in Mount Vernon Triangle, a neighborhood that cares about everyone.
    District law requires that a housing provider state that the housing provider will not refuse to rent a rental unit to a person because the person will provide the rental payment, in whole or in part, through a voucher for rental housing assistance provided by the District or federal government.

    Office hours

    DayOpen hours
    Mon - Fri:9 am - 6 pm
    Sat:10 am - 5 pm
    Sun:Closed

    Facts, features & policies

    Building Amenities

    Community Rooms
    • Fitness Center: Fitness Center with Peloton Bikes, Virtual Trainin
    • Lounge: Indoor lounge with demonstration kitchen
    • Theater: Fire pit with outdoor theater
    Other
    • In Unit: Full size stackable washer and dryer
    • Shared: Valet dry cleaning services
    • Swimming Pool: Resort-style pool area with cabanas
    Outdoor common areas
    • Barbecue: Grilling areas with prep stations
    • Garden: Seasonal herb garden
    Security
    • Gated Entry: Gated access to underground parking
    Services & facilities
    • Bicycle Storage: Bicycle storage room

    Unit Features

    Appliances
    • Dryer: Full size stackable washer and dryer
    • Washer: Full size stackable washer and dryer
    Cooling
    • Refrigeration Cooling: Refrigerated storage spaces
    Flooring
    • Tile: Porcelanosa tile flooring
    Internet/Satellite
    • High-speed Internet Ready: WiFi throughout all amenity spaces

    Policies

    Lease terms
    • 12
    Pets
    Cats
    • Allowed
    • 2 pet max
    • $500 one time fee
    • $50 monthly pet fee
    Dogs
    • Allowed
    • 2 pet max
    • $500 one time fee
    • $50 monthly pet fee
    Parking
    • Parking Lot: Other

    Special Features

    • Balconies And Private Courtyards (select Units)
    • Buildinglink Resident Portal
    • Built In Wine Racks
    • Communal Work And Social Spaces With Coffee Bar
    • Customizable Elfa Closet Systems
    • Designer Roller Shades
    • Designer White Lacquer And Wood Cabinetry
    • Dog Grooming Station
    • Easy Access To 1-395
    • Elegant Lobby With 24-hour Concierge
    • Floor-to-ceiling Windows
    • Gallery Place/chinatown Metro
    • Keyless Access Apartment Entry
    • Kitchen Pantries (select Units)
    • Metro-friendly
    • Moveable Islands (select Units)
    • Mt. Vernon Sq./7th Street Convention Center Metro
    • Nest Programmable Thermostats
    • Our State-of-the-art Kitchens Include
    • Oversized Kitchen Sinks
    • Package Concierge System
    • Pet Friendly
    • Pet Walking Service
    • Private Dining Room
    • Quartz Countertops
    • Recessed Shower Shelving
    • Rooftop Retreat Topped Off With
    • Stainless Steel Appliances
    • Tile Backsplash
    • Under Cabinet Lighting (select Units)
    • Wine Coolers (select Units)
    • Zipcar Within Walking Distance

    Neighborhood: Mount Vernon Square

    Areas of interest

    Use our interactive map to explore the neighborhood and see how it matches your interests.

    Travel times

    Walk, Transit & Bike Scores

    97 / 100
    Walker's Paradise
    88 / 100
    Very Bikeable

    Nearby schools in Washington

    GreatSchools rating

    Frequently asked questions

    What is the walk score of Lydian?

    Lydian has a walk score of 97, it's a walker's paradise.

    What schools are assigned to Lydian?

    The schools assigned to Lydian include Walker-Jones Education Campus and Dunbar High School.

    Does Lydian have in-unit laundry?

    Yes, Lydian has in-unit laundry for some or all of the units. Lydian also has shared building laundry.

    What neighborhood is Lydian in?

    Lydian is in the Mount Vernon Square neighborhood in Washington, DC.

    What are Lydian's policies on pets?

    A maximum of 2 cats are allowed per unit. This building has a one time fee of $500 and monthly fee of $50 for cats. A maximum of 2 dogs are allowed per unit. This building has a one time fee of $500 and monthly fee of $50 for dogs.