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3421 4th St

boulder, CO 80304

$6,800,000

  • 6 BR
    4 BA, 1 HALF BA
    approx. 5,022 SF

Interested? Let's Connect

Newlands Sanctuary on Mt. Sanitas Open Space Step onto the 600-square-foot deck and look up. Mt. Sanitas rises 1,300 feet from your backyard gate, private access to the Goat Trail. No driving. No parking. Just you, your coffee, and maybe a 4-legged friend who will make sure you don't skip it. This premier property is one of eight homes backing directly to open space. In 21 years, only one has changed hands. Hidden behind a 70-yard tree-lined driveway on a 0.6-acre lot (2.5x standard), this is widely regarded as one of Boulder's best addresses, served by top rated schools.The 5,200-square-foot residence features 20-foot ceilings with west-facing glass framing Mt. Sanitas, white oak floors, two fireplaces, and a library overlooking the property's seven heritage apple trees. Six bedrooms plus office (convertible seventh) include three distinct suites: the primary en-suite with a stunning view; a garden-level walkout in-law addition (2005, 12' ceilings) with separate entrance, private patio, and dedicated office-ideal for multigenerational living or guests-plus a basement suite with whirlpool bath. Outside you will discover a deep wrap-around porch beneath a 60-foot silver maple, flower and vegetable gardens, and the historic Silver Lake Ditch with 12,000 gallons daily water rights. Sundance Film Festival arrives January 2027, venues minutes away providing a chance at an incredible rental income opportunity and under the Augusta Rule, 14 days of rental income may be tax-free. Roof replaced 2019. New carpet. Heated two-car garage. No HOA. No covenants. For those who know Newlands: this is the privacy, the lot, the view, and the trail access that almost never comes to market. For those discovering Boulder for the first time: welcome to the neighborhood the locals covet most.

OPEN HOUSE

04/04 12:00PM - 4:00PMAdd to Calendar

OPEN HOUSE

04/11 12:00PM - 4:00PMAdd to Calendar

OPEN HOUSE

04/12 12:00PM - 4:00PMAdd to Calendar

Details

5,022 Sq Ft

0.6 Private Acres Lot Size

single family home

$26,030 Annual Tax

Built in 1990

MLS/Listing ID 1053821

Amenities & Features

Patio

Parking - Attached

Parking - Garage Door Opener

Deck

Hills View

Down Draft

Self Cleaning Oven

Heating - 2 or more Heat Sources

Lot - Abuts Ditch

Lot - Abuts Public Open Space

Lot - Water Rights Included

Composition

Sprinkler Irrigation

Wood

Partial

Fenced

Chain-link

Living Room Fireplace

Gas Log Fireplace

Gas Fireplace

Family Room Fireplace

Heating - Zoned

Heating - Radiant

Heating - Hot Water

Heating - Forced Air

Walk-in Closets

Separate Formal Dining Room

Open Floor Plan

Eat-in Kitchen

Cathedral Ceilings

Lot - Wooded

Lot - Paved

Refrigerator

Microwave

Gas Range

Disposal

Dishwasher

Style - Contemporary

Construction - Wood Siding

Construction - Frame

Cooling - Evaporative Cooling

Cooling - Ceiling Fans

Estimate my mortgage

TOTAL MONTHLY COST

$0

  • PRINCIPAL & INTEREST

    $0

  • PROPERTY TAXES

    $0

  • Common Charges

    $0

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