1. Overview
  2. Location
  3. Interior
  4. Exterior
  5. Property
  6. Schools
  7. Tax
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RECOLORADO logo

Status: Active

3421 4th St 
Boulder, CO 80304

$7,250,000

------/mo*
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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.
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Bedrooms
6
Baths
4.5
House Size
5,198 sqft
Year Built
1990
Lot Size
0.6 ac
School District
Boulder Valley RE 2

Location

Market Insights

In the last 30 days, homes for sale in 80304, Boulder, CO were on the market for a median of 32 days and 5.26% of homes sold above list price.

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Interior Information

appliances
Oven
Dishwasher
Disposal
Down Draft
Microwave
Refrigerator
Self Cleaning Oven
basement
Daylight
Full
cooling
Ceiling Fan(s)
Evaporative Cooling
features
Eat-in Kitchen
Open Floorplan
Vaulted Ceiling(s)
Walk-in Closet(s)
fireplace
Family Room
Gas
Gas Log
Living Room
flooring
Wood
heating
Forced Air
Hot Water
Radiant
laundry features
In Unit
view
Mountain(s)
window features
Double Pane Windows

Exterior Information

fence
Fenced
Partial
patio and porch
Deck
Patio
road surface
Paved
roof
Composition

Property Information

architectural style
Contemporary
construction
Frame
Wood Siding
lot
Sloped
Wooded
Rolling Slope
Sprinklers In Front
parking
Oversized
Attached
security features
Smoke Detector(s)
sewer
Public Sewer
subdivision name
Fourth Street 3403 Sub
utilities
Cable Available
Electricity Available
Natural Gas Available
water source
Public
  • Listed By Kathleen Haas
  • (970) 531-7448
  • Colorado Realty 4 Less, LLC
  • (970) 531-7448
  • MLS IR1037712

Tax History

Date

Property Tax

Land

Additions

Tax Assessment

2024$26,869 (+1.8%)$3,228,200$1,389,900$4,618,100 (0%)
2023$26,402 (+13.2%)$3,228,200$1,389,900$4,618,100 (+29%)
2022$23,332 (+1%)$2,207,300$1,372,000$3,579,300 (0%)
2021$23,101 (+4.9%)$2,207,300$1,372,000$3,579,300 (+28.5%)
2020$22,028$2,037,000$748,800$2,785,800

Tax data provied by Attom


Monthly Payments Calculator

Estimated Monthly Cost

$40,738

30 year fixed·6.9% interest rate
Principal & Interest
$38,199
Property Taxes
$2,239
Home Insurance
$300
HOA Fees
$0
%

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*All calculations are estimates and provided for informational purposes only. Actual amounts may vary.
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