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$7,250,000
1 Day On Site

3421 4th Street
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
Call Now: 303-809-9259
Is this the listing for you? We can help make it yours.
303-809-9259
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Sat, Jun 28, 12:00 PM - 4:00 PM
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3421 4th Street3421 4th Street3421 4th Street3421 4th Street
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Mortgage Calculator

Monthly Payment (Est.)

$33,077
Calculator powered by Showcase IDX, a Constellation1 Company. Copyright ©2025 Information is deemed reliable but not guaranteed.

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 
1 Day
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 
IR1037712
Status 
Active
Property Tax 
$26,869
HOA/Condo/Coop Fees 
N/A
Sq Ft Source 
Other
Friends & Family
Recent Activity
yesterdayListing updated with changes from the MLS®
yesterdayListing first seen on site
General Features
Acres 
0.6
Additional Property Use 
Residential
Attached Garage 
Yes
Direction Faces 
East
Garage 
Yes
Garage Spaces 
2
Parking 
OversizedAttached
Parking Spaces 
2
Property Sub Type 
Single Family Residence
Security 
Smoke Detector(s)
Sewer 
Public Sewer
SqFt Above 
3927
SqFt Below 
1271
SqFt Total 
5198
Stories 
Three Or More
Style 
Contemporary
Utilities 
Cable AvailableElectricity AvailableNatural Gas Available
Water Source 
Public
Zoning 
RR-2
Interior Features
Appliances 
OvenDishwasherDisposalDown DraftMicrowaveRefrigeratorSelf Cleaning Oven
Basement 
DaylightFull
Cooling 
Ceiling Fan(s)Evaporative Cooling
Fireplace Features 
Family RoomGasGas LogLiving Room
Flooring 
Wood
Heating 
Forced AirHot WaterRadiant
Interior 
Eat-in KitchenOpen FloorplanVaulted Ceiling(s)Walk-In Closet(s)
Laundry Features 
In Unit
Main Level Bedrooms 
1
Window Features 
Double Pane Windows
Bathroom Full 
Level - Basement
Bathroom Half 
Level - Main
Bathroom Three Quarter 
Level - Main
Bedroom 
Dimensions - 17 x 23Level - MainDescription - Wood
Dining Room 
Dimensions - 12 x 13Level - MainDescription - Wood
Game Room 
Dimensions - 14 x 18Level - LowerDescription - Other
Great Room 
Dimensions - 14 x 19Level - MainDescription - Carpet
Kitchen 
Dimensions - 10 x 15Level - MainDescription - Wood
Laundry 
Dimensions - 11 x 6Level - LowerDescription - Other
Living Room 
Dimensions - 13 x 15Level - MainDescription - Wood
Office 
Dimensions - 11 x 12Level - MainDescription - Wood
Primary Bathroom Full 
Level - Upper
Primary Bedroom 
Dimensions - 15 x 17Level - UpperDescription - Carpet
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Exterior Features
Construction Details 
FrameWood Siding
Fencing 
FencedPartial
Lot Features 
SlopedWoodedRolling SlopeSprinklers In Front
Patio And Porch 
DeckPatio
Roof 
Composition
Spa Features 
Bath
View 
Mountain(s)
Waterview 
Mountain(s)
Windows/Doors 
Double Pane Windows
Community Features
Financing Terms Available 
1031 ExchangeCashConventional
Roads 
Paved
School District 
Boulder Valley RE 2
Schools
School District
Boulder Valley RE 2
Elementary School
Foothill
Middle School
Centennial
High School
Boulder
Listing courtesy of Colorado Realty 4 Less, LLC [email protected]



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 Colorado Realty 4 Less, LLC 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.

Neighborhood & Commute
Source: Walkscore
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