3421 4th Street, Boulder, CO 80304

Local realty services provided by:ERA Teamwork Realty
3421 4th Street,Boulder, CO 80304
$7,250,000
  • 6 Beds
  • 5 Baths
  • 5,198 sq. ft.
  • Single family
  • Active
Upcoming open houses
  • Sat, Aug 16
    12:00 pm - 04:00 pm
  • Sun, Aug 17
    04:00 pm - 07:00 pm
Listed by:kathleen haas9705317448
Office:colorado realty 4 less, llc.
MLS#:IR1037712
Source:ML

Price summary

  • Price:$7,250,000
  • Price per sq. ft.:$1,394.77

About this home

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

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Home facts

  • Year built:1990
  • Listing Id #:IR1037712

Rooms and interior

  • Bedrooms:6
  • Total bathrooms:5
  • Full bathrooms:2
  • Half bathrooms:1
  • Living area:5,198 sq. ft.

Heating and cooling

  • Cooling:Ceiling Fan(s), Evaporative Cooling
  • Heating:Forced Air, Hot Water, Radiant

Structure and exterior

  • Roof:Composition
  • Year built:1990
  • Building area:5,198 sq. ft.
  • Lot area:0.6 Acres

Schools

  • High school:Boulder
  • Middle school:Centennial
  • Elementary school:Foothill

Utilities

  • Water:Public
  • Sewer:Public Sewer

Finances and disclosures

  • Price:$7,250,000
  • Price per sq. ft.:$1,394.77
  • Tax amount:$26,869 (2024)
MLS LogoBased on information submitted to the MLS GRID as of August 11, 2025 01:37 AM. All data is obtained from various sources and may not have been verified by broker or MLS GRID. Supplied Open House information is subject to change without notice. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information.