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512 Marine Street, Boulder, CO – $4,985,000

  • 4 Beds
  • 5 Baths
  • 4,465 Sqft
  • .23 Acres
  • 4 Beds
  • 5 Baths
  • 4,465 Sqft
  • .23 Acres

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512 Marine Street

Located on one of Boulder's most iconic, tree-lined streets, this architecturally rich residence effortlessly blends timeless charm with elevated modern design. Thoughtfully curated and beautifully finished, the main level features sustainably refinished hardwood floors, soaring ceilings, and a striking gourmet kitchen outfitted with a new Sub-Zero refrigerator, Wolf range, and a marble-topped island ideal for gatherings. Refined living and dining spaces exude warmth and character with custom built-ins, designer lighting, and multiple fireplaces.Upstairs, the vaulted primary suite offers a true retreat, complete with its own fireplace, a private balcony, and sweeping Flatiron views. Two additional bedrooms are filled with light and comfort, each enjoying access to a beautifully appointed bath-one en suite, the other just a few steps away. A whimsical "secret" bonus room adds charm and flexibility for imaginative play or clever storage.The lower level expands the living experience with impressive ceiling height, a bright media room, custom shelving, glass-enclosed home office, and a private guest suite with a spa-like bath.Outdoors, the magic continues. The professionally landscaped backyard is a lush and tranquil sanctuary with a newly paved patio, serene waterfall feature, plumbed-in BBQ, and multiple entertaining spaces-plus a storybook two-story playhouse with sandbox and a full sprinkler system for year-round vibrancy. A detached cottage with vaulted ceilings, a kitchenette, and powder room offers flexible bonus space-perfect for a gym, office, studio, guest quarters or teen hangout-while the detached garage boasts epoxy floors and built-in storage. Just moments from top cafes, award-winning restaurants, boutique shopping, Chautauqua Park, and endless hiking trails, this is quintessential Boulder living at its finest.

Listing Office: RE/MAX of Boulder, Inc

Essential Information

  • MLS® #IR1036876
  • Price$4,985,000
  • Bedrooms4
  • Bathrooms5.00
  • Full Baths4
  • Half Baths1
  • Square Footage4,465
  • Acres0.23
  • Year Built1903
  • TypeResidential
  • Sub-TypeSingle Family Residence
  • StyleVictorian
  • StatusComing Soon

Community Information

  • Address512 Marine Street
  • SubdivisionHighland Lawn
  • CityBoulder
  • CountyBoulder
  • StateCO
  • Zip Code80302

Amenities

  • Parking Spaces2
  • # of Garages2
  • ViewMountain(s)

Utilities

Cable Available, Electricity Available, Natural Gas Available

Interior

  • HeatingForced Air
  • CoolingCentral Air
  • FireplaceYes
  • StoriesTwo

Interior Features

Eat-in Kitchen, Kitchen Island, Open Floorplan, Pantry, Radon Mitigation System, Walk-In Closet(s)

Appliances

Bar Fridge, Double Oven, Dryer, Microwave, Oven, Refrigerator, Washer

Fireplaces

Family Room, Gas, Living Room, Primary Bedroom

Exterior

  • Exterior FeaturesBalcony, Gas Grill
  • Lot DescriptionLevel, Sprinklers In Front
  • WindowsWindow Coverings
  • RoofComposition

School Information

  • DistrictBoulder Valley RE 2
  • ElementaryFlatirons
  • MiddleManhattan
  • HighBoulder

Additional Information

  • Date ListedJune 19th, 2025
  • ZoningRES

Listing Details

  • RE/MAX of Boulder, Inc
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Listing information last updated on June 18th, 2025 at 2:03am MDT.