$7,250,000
OPEN SAT 12PM - 4PM

3421 4th St Boulder, CO 80304

Newlands Neighborhood

Estimated payment $40,677/month

Total Views 5,020
6 Beds
4.5 Baths
5,198 Sq Ft
$1,395 Price per Sq Ft

Highlights

  • Spa
  • 0.6 Acre Lot
  • Deck
  • Foothill Elementary School Rated A
  • Open Floorplan
  • Contemporary Architecture

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 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.

Listing Agent

Kathy Haas

Colorado Realty 4 Less, LLC Listed on: 06/25/2025

Open House Schedule

Home Details

Home Type

  • Single Family

Est. Annual Taxes

  • $26,869

Year Built

  • Built in 1990

Lot Details

  • 0.6 Acre Lot
  • Open Space
  • East Facing Home
  • Southern Exposure
  • Partially Fenced Property
  • Wood Fence
  • Chain Link Fence
  • Sloped Lot
  • Sprinkler System
  • Wooded Lot
  • Landscaped with Trees
  • Property is zoned RR-2

Parking

  • 2 Car Attached Garage
  • Oversized Parking
  • Garage Door Opener

Home Design

  • Contemporary Architecture
  • Wood Frame Construction
  • Composition Roof
  • Wood Siding

Interior Spaces

  • 5,198 Sq Ft Home
  • 4-Story Property
  • Open Floorplan
  • Cathedral Ceiling
  • Ceiling Fan
  • Multiple Fireplaces
  • Gas Log Fireplace
  • Double Pane Windows
  • Living Room with Fireplace
  • Dining Room
  • Home Office
  • Recreation Room with Fireplace
  • Fire and Smoke Detector
  • Property Views

Kitchen

  • Eat-In Kitchen
  • Gas Oven or Range
  • Self-Cleaning Oven
  • Down Draft Cooktop
  • Microwave
  • Dishwasher
  • Disposal

Flooring

  • Wood
  • Carpet

Bedrooms and Bathrooms

  • 6 Bedrooms
  • Walk-In Closet
  • Primary Bathroom is a Full Bathroom
  • Bathtub and Shower Combination in Primary Bathroom
  • Spa Bath

Laundry

  • Laundry on lower level
  • Washer and Dryer Hookup

Basement

  • Basement Fills Entire Space Under The House
  • Natural lighting in basement

Outdoor Features

  • Spa
  • Deck
  • Patio

Schools

  • Foothill Elementary School
  • Centennial Middle School
  • Boulder High School

Utilities

  • Cooling Available
  • Forced Air Heating System
  • Radiant Heating System
  • Hot Water Heating System
  • Water Rights
  • High Speed Internet
  • Cable TV Available

Community Details

  • No Home Owners Association
  • Fourth Street 3403 Sub Subdivision

Listing and Financial Details

  • Assessor Parcel Number R0108936

Home Details

Home Type

Single Family

Est. Annual Taxes

$26,869

Year Built

Built in 1990

Lot Details

0

Parking

2

Listing Details

  • Inclusions: Gas Range/Oven,Down-draft Range,Self-Cleaning Oven,Dishwasher,Refrigerator,Microwave,Jetted Bath Tub,Garage Door Opener,Disposal,Smoke Alarm(s)
  • Year Built: 1990
  • Property Sub Type: Residential-Detached
  • Prop. Type: Residential
  • Horses: No
  • Lot Size Acres: 0.6
  • Road Frontage Type: City Street
  • Road Surface Type: Asphalt
  • Subdivision Name: Fourth Street 3403 Sub
  • Directions: From Broadway, turn west on Juniper Ave. Turn rt on 4th St. property on left side"
  • Architectural Style: Contemporary/Modern
  • Garage Yn: Yes
  • Unit Levels: Four-Level
  • New Construction: No
  • Efficiency: Southern Exposure
  • Building Stories: 4
  • Structure Type: Legal Conforming
  • Kitchen Level: Main
  • IRESDS_HasWaterRights: Yes
  • IRESDS_Total Sq Ft: 5198
  • Special Features: OpenHouse
  • Stories: 4

Interior Features

  • Possible Use: Single Family
  • Spa Features: Bath
  • Private Spa: Yes
  • Appliances: Gas Range/Oven, Down Draft, Self Cleaning Oven, Dishwasher, Refrigerator, Microwave, Disposal
  • Has Basement: Full, Partially Finished, Daylight
  • Full Bathrooms: 2
  • Half Bathrooms: 1
  • Three Quarter Bathrooms: 2
  • Total Bedrooms: 6
  • Fireplace Features: 2+ Fireplaces, Gas, Gas Logs Included, Living Room, Family/Recreation Room Fireplace
  • Fireplace: Yes
  • Flooring: Wood Floors
  • Interior Amenities: Study Area, High Speed Internet, Eat-in Kitchen, Separate Dining Room, Cathedral/Vaulted Ceilings, Open Floorplan, Walk-In Closet(s), 9ft+ Ceilings
  • Window Features: Double Pane Windows
  • Bedroom Features: Carpet
  • Room Bedroom3 Features: Carpet
  • Dining Room Features: Wood Floor
  • IRESDS_HasFamilyRoom: No
  • Room Bedroom4 Level: Upper
  • Living Room Living Room Level: Main
  • Room Bedroom4 Features: Carpet
  • Master Bedroom Master Bedroom Level: Upper
  • Room Bedroom3 Level: Upper
  • Room Bedroom2 Level: Upper
  • Room Bedroom2 Features: Carpet
  • Master Bedroom Features: Carpet
  • Room Bedroom5 Level: Main
  • Room Bedroom5 Features: Wood Floor
  • Room Kitchen Features: Wood Floor
  • Living Room Features: Wood Floor
  • Dining Room Dining Room Level: Main
  • Master Bathroom Features: Full Primary Bath, Tub+Shower Primary, Luxury Features Primary Bath, 5 Piece Primary Bath

Exterior Features

  • Roof: Composition
  • Fencing: Partial, Fenced, Wood, Chain Link
  • Lot Features: Lawn Sprinkler System, Wooded, Sloped, Abuts Ditch, Abuts Public Open Space
  • View: Foothills View
  • View: Yes
  • Waterfront: No
  • Disclosures: Seller's Property Disclosure
  • Home Warranty: No
  • Construction Type: Wood/Frame, Wood Siding
  • Direction Faces: East
  • Patio And Porch Features: Patio, Deck
  • Property Condition: Not New, Previously Owned

Garage/Parking

  • Attached Garage: Yes
  • Covered Parking Spaces: 2
  • Garage Spaces: 2
  • Parking Features: Garage Door Opener, Oversized
  • IRESDS_GarageType: Attached

Utilities

  • Cooling: Evaporative Cooling, Ceiling Fan(s)
  • Electric: Electric, Xcel
  • Heating: Forced Air, Hot Water, Zoned Heat, Radiant, 2 or more Heat Sources
  • Utilities: Natural Gas Available, Electricity Available, Cable Available
  • Laundry Features: Washer/Dryer Hookups, Lower Level
  • Security: Smoke Detector(s)
  • Cooling Y N: Yes
  • Heating Yn: Yes
  • Electricity On Property: No
  • Sewer: City Sewer
  • Water Source: City Water, City of Boulder
  • Gas Company: Natural Gas, Xcel

Condo/Co-op/Association

  • Senior Community: No
  • Association: No

Association/Amenities

  • IRESDS_HasAssociation2Reserve: No
  • IRESDS_HasAssociation2Fee: No
  • IRESDS_HasAssociationReserve: No
  • IRESDS_HasAssociationFee: No

Schools

  • Elementary School: Foothill
  • HighSchool: Boulder
  • Junior High Dist: Boulder Valley Dist RE2
  • Middle Or Junior School: Centennial

Lot Info

  • Zoning: RR-2
  • Lot Size Sq Ft: 26072
  • Parcel #: R0108936
  • Irrigation Water Rights: No

Tax Info

  • Tax Year: 2024
  • Tax Annual Amount: 26869

Multi Family

Map

Range of Values:

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Home Values in the Area

Source: Public Records

Average Home Value in this Area

Source: Public Records

Tax History

Year Tax Paid Tax Assessment Tax Assessment Total Assessment is a certain percentage of the fair market value that is determined by local assessors to be the total taxable value of land and additions on the property. Land Improvement
2025 $26,869 $272,994 $196,356 $76,638
2024 $26,869 $272,994 $196,356 $76,638
2023 $26,402 $305,728 $216,289 $93,123
2022 $23,101 $248,761 $153,407 $95,354
2021 $22,028 $255,920 $157,822 $98,098
2020 $17,338 $199,185 $145,646 $53,539
2019 $17,073 $199,185 $145,646 $53,539
2018 $15,932 $183,758 $120,240 $63,518
2017 $15,433 $203,155 $132,932 $70,223
2016 $14,091 $162,774 $105,072 $57,702
2015 $13,343 $112,602 $44,178 $68,424
2014 $9,468 $112,602 $44,178 $68,424
Source: Public Records

Property History

Date Event Price List to Sale Price per Sq Ft
06/25/2025 06/25/25 For Sale $7,250,000 -- $1,395 / Sq Ft
Source: IRES MLS

Purchase History

Date Type Sale Price Title Company
Special Warranty Deed -- None Listed On Document
Warranty Deed $1,750,000 --
Deed $11,000 --
Deed -- --
Deed $127,000 --
Deed -- --
Source: Public Records

Mortgage History

Date Status Loan Amount Loan Type
Previous Owner $999,900 Purchase Money Mortgage
Source: Public Records

Source: IRES MLS

MLS Number: 1037712

IRES MLS

APN: 1461242-13-002

Colorado Boulder County Boulder 80304 Newlands

3421 4th St, Boulder, CO

This home is located at 3421 4th St, Boulder, CO 80304 and is currently priced at $7,250,000, approximately $1,394 per square foot. This property was built in 1990. 3421 4th St is a home located in Boulder County with nearby schools including Foothill Elementary School, Centennial Middle School, and Boulder High School.

Disclaimer: Certain information contained herein is derived from information provided by parties other than Homes.com. All information provided is deemed reliable, but is not guaranteed to be accurate and should be independently verified.

IRES MLS Information source: Information and Real Estate Services, LLC. Provided for limited non-commercial use only under IRES Rules © Copyright IRES.

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.

Information deemed reliable but not guaranteed by the MLS.

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Kathy Haas
Listing Agent
Kathy Haas
Section Image
Colorado Realty 4 Less, LLC
(970) 531-7448