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$7,250,000
9 Days On Site

3421 4th St
Boulder, CO 80304

For Sale|Single Family Residence|Active
6
Beds
5
Total Baths
2
Full Baths
3
Partial Baths
5,198
SqFt
$1,395
/SqFt
1990
Built
Subdivision:
Fourth Street 3403 Sub
County:
Boulder

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3421 4th St3421 4th St3421 4th St3421 4th St
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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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Listing Snapshot
Price 
$7,250,000
Days On Site 
9 Days
Bedrooms 
6
Inside Area (SqFt) 
5,198 sqft
Total Baths 
5
Full Baths 
2
Partial Baths 
3
Lot Size 
0.6 Acres
Year Built 
1990
MLS® Number 
1037712
Status 
Active
Property Tax 
$26,869
HOA/Condo/Coop Fees 
N/A
Sq Ft Source 
Other
Friends & Family
Recent Activity
23 hours agoListing updated with changes from the MLS®
a week agoStatus changed to Active
a week agoPrice changed to $7,250,000
a week agoListing first seen on site
General Features
Acres 
0.6
Additional Property Use 
Single Family
Attached Garage 
Yes
Direction Faces 
East
Garage 
Yes
Garage Spaces 
2
Number Of Stories 
4
Parking 
Garage Door OpenerOversizedAttached
Property Sub Type 
Single Family Residence
Security 
Smoke Detector(s)
Sewer 
Public Sewer
SqFt Above 
3927
SqFt Below 
1271
SqFt Total 
3927
Style 
Contemporary/Modern
Utilities 
Natural Gas AvailableElectricity AvailableCable Available
Water Source 
Public
Zoning 
RR-2
Interior Features
Appliances 
Down DraftSelf Cleaning OvenDishwasherRefrigeratorMicrowaveDisposalOven
Basement 
FullPartially FinishedDaylight
Cooling 
Evaporative CoolingCeiling Fan(s)
Fireplace 
Yes
Fireplace Features 
GasLiving Room
Fireplaces 
2
Heating 
Forced AirHot WaterZonedRadiant
Interior 
High Speed InternetEat-in KitchenOpen FloorplanWalk-In Closet(s)High CeilingsCathedral Ceiling(s)
Laundry Features 
Lower Level
Spa 
Yes
Window Features 
Double Pane Windows
Bedroom 2 
Dimensions - 12x12Level - UpperArea - 144Description - Carpet
Bedroom 3 
Dimensions - 11x13Level - UpperArea - 143Description - Carpet
Bedroom 4 
Dimensions - 11x15Level - UpperArea - 165Description - Carpet
Bedroom 5 
Dimensions - 17x23Level - MainArea - 391Description - Wood Floor
Dining Room 
Dimensions - 12x13Level - MainArea - 156Description - Wood Floor
Great Room 
Dimensions - 14x19Level - MainDescription - Carpet
Kitchen 
Dimensions - 10x15Level - MainArea - 150Description - Wood Floor
Laundry 
Dimensions - 11x6Description - Other
Living Room 
Dimensions - 13x15Level - MainArea - 195Description - Wood Floor
Master Bathroom 
Description - Full Primary Bath,Tub+Shower Primary,Luxury Features Primary Bath,5 Piece Primary Bath
Master Bedroom 
Dimensions - 15x17Level - UpperArea - 255Description - Carpet
RecRoom 
Dimensions - 14x18Level - LowerDescription - Other
Study 
Dimensions - 11x12Level - Main
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Exterior Features
Construction Details 
Wood Siding
Fencing 
PartialFencedWoodChain Link
Lot Features 
WoodedSloped
Patio And Porch 
PatioDeck
Road Frontage 
City Street
Roof 
Composition
Spa 
Yes
Spa Features 
Bath
Windows/Doors 
Double Pane Windows
Community Features
Financing Terms Available 
CashConventional1031 Exchange
MLS Area 
Boulder
Roads 
Asphalt
School District 
Boulder Valley Dist RE2
Schools
School District
Boulder Valley Dist RE2
Elementary School
Foothill
Middle School
Centennial
High School
Boulder
Listing courtesy of Colorado Realty 4 Less, LLC


Compensation information displayed on listing details is only applicable to other participants and subscribers of the source MLS.

Information source: Information and Real Estate Services, LLC. Information deemed reliable but not guaranteed by the MLS. Listing information is provided exclusively 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. Provided for limited non-commercial use only under IRES Rules © Copyright IRES. Digital Millenium Copyright Act

Last checked 2025-07-04 06:03 AM MST.

Neighborhood & Commute
Source: Walkscore
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