Connect

3421 4th Street, Boulder, CO – $7,250,000

  • 6 Beds
  • 5 Baths
  • 5,198 Sqft
  • .6 Acres
  • 6 Beds
  • 5 Baths
  • 5,198 Sqft
  • .6 Acres

New Search X

3421 4th Street

Once-in-a-generation chance to own a Newlands sanctuary backing directly to Mt. Sanitas. On open space - one of only eight homes on 4th St. with this privilege. Tucked up a private, tree-lined drive, the 5,200 sq ft residence sits on a rare 0.6-acre garden oasis framed by apple trees, lavender beds, and the historic Silver Lake Ditch. Inside, light pours through west-facing walls of glass and 20-ft ceilings, capturing ever-changing mountain panoramas. Oak floors run throughout the main level, complementing the warmth of two fireplaces - one in the dramatic living room, another in the cozy library. The flexible layout offers six bedrooms plus an office, highlighted by two king-sized primary suites (one on the top floor, one garden-level with 12.5-ft ceilings, private patio, and separate entrance) - ideal for multigenerational living, guests, or an au pair. Gather in the open kitchen that flows into living and dining areas, spill onto the wrap-around porch for morning coffee under a 60-ft maple, then follow your own gate straight to miles of trail. Evenings bring alpenglow views, cider-press parties with fruit from your orchard, and starlit conversations with a cricket chorus. Secluded yet minutes to Pearl St., Ideal Market, and Boulder's top-rated schools. Newlands is prized for its friendly vibe, where neighbors walk dogs and ride bikes along peaceful, tree-lined streets, gathering for block parties and bonding over a shared love of the outdoors. Homes that touch open space here rarely trade hands. If you've been waiting for privacy, views, and community in one package, this is the opportunity.

Listing Office: Colorado Realty 4 Less, LLC

Essential Information

  • MLS® #IR1037712
  • Price$7,250,000
  • Bedrooms6
  • Bathrooms5.00
  • Full Baths2
  • Half Baths1
  • Square Footage5,198
  • Acres0.60
  • Year Built1990
  • TypeResidential
  • Sub-TypeSingle Family Residence
  • StyleContemporary
  • StatusActive

Community Information

  • Address3421 4th Street
  • SubdivisionFourth Street 3403 Sub
  • CityBoulder
  • CountyBoulder
  • StateCO
  • Zip Code80304

Amenities

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

Utilities

Cable Available, Electricity Available, Internet Access (Wired), Natural Gas Available

Interior

  • HeatingForced Air, Hot Water, Radiant
  • FireplaceYes
  • StoriesThree Or More

Interior Features

Eat-in Kitchen, Five Piece Bath, Open Floorplan, Vaulted Ceiling(s), Walk-In Closet(s)

Appliances

Dishwasher, Disposal, Down Draft, Microwave, Oven, Refrigerator, Self Cleaning Oven

Cooling

Ceiling Fan(s), Evaporative Cooling

Fireplaces

Family Room, Gas, Gas Log, Living Room

Exterior

  • WindowsDouble Pane Windows
  • RoofComposition

Lot Description

Ditch, Open Space, Rolling Slope, Sprinklers In Front

School Information

  • DistrictBoulder Valley RE 2
  • ElementaryFoothill
  • MiddleCentennial
  • HighBoulder

Additional Information

  • Date ListedJune 25th, 2025
  • ZoningRR-2

Listing Details

  • Colorado Realty 4 Less, LLC
Please provide a valid email address.

Terms and Conditions: The content relating to real estate for sale in this Web site comes in part from the Internet Data eXchange ("IDX") program of METROLIST, INC., DBA RECOLORADO® Real estate listings held by brokers other than RE/MAX Professionals are marked with the IDX Logo. This information is being provided for the consumers personal, non-commercial use and may not be used for any other purpose. All information subject to change and should be independently verified.

Copyright 2025 METROLIST, INC., DBA RECOLORADO® -- All Rights Reserved 6455 S. Yosemite St., Suite 500 Greenwood Village, CO 80111 USA

Listing information last updated on June 30th, 2025 at 4:04pm MDT.