512 Marine St, Boulder, CO 80302
- Beds
- 4
- Baths
- 5
- Sqft
- 4,465
- Garage
- Yes
View property features, location on map, relevant school information and overview from seller's agent.
- 2
- 0
Overview
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.
Location
Full feature list
Basic info
- Property type
- House
- Number of bedrooms
- 4
- Number of bathrooms
- 5
- Square feet
- 4,465
- Lot size (acres)
- 0.23
- Year built
- 1903
Interior features
- Basement
- Yes, Partially finished
- Fireplaces
- 2
Garage and parking
- Garage parking spaces
- 2
Utilities
- Heating
- Forced air
- Cooling
- Central air
- Sewer
- Public sewer
- Water
- Public
Taxes
- Tax Annual Amount (2024)
- $25,584
Public schools
Disclaimer: Certain information displayed on this listing has been derived from parties other than Final Offer, LLC. Information provided and their sources have been deemed reliable, but accuracy of information is not guaranteed and therefore should be independently verified.
Sourced from: IRES MLS MLS®#: 1044486 Last checked: …

Information and Real Estate Services, LLC. Provided for limited non-commercial use only under IRES Rules. Copyright © IRES. Broker Reciprocity is the current compilation of active listings of all Broker Reciprocity subscribers except those listings where the seller or the seller's agency has opted out of Internet publication by so indicating on the listing contract or by written notice to the Multiple Listing Service. Information provided is thought to be reliable but is not guaranteed to be accurate; you are advised to verify facts that are important to you. No warranties, expressed or implied, are provided for the data herein, or for their use or interpretation by the user, Information deemed reliable but not Guaranteed. Information being provided is for consumers' personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Copyright ©2026 Information and Real Estate Services, LLC. All rights reserved.