3135 11th Street Boulder, CO ^$ 3,945,000

3135 11th Street

^$ 3,945,000

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3135 11th Street

Boulder, CO, 80304

^$ 3,945,000

Bedrooms5 Baths4.2 Sq 6,187

Monthly Estimate*

^$ 24,612

Listed by NeXstep Real Estate Group

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Single Family Home for sale in Boulder, CO

for $3,945,000 with 5 bedrooms and 4 full baths, 2 half baths. This 6,187 square foot home was built in 2005 on a lot size of 0.22.

Welcome to a stunning blend of refined elegance and modern innovation in one of Boulder’s sought-after Newlands neighborhood. Nestled just minutes from downtown and the majestic foothills, this custom-designed residence is a masterclass in craftsmanship and comfort. From the moment you enter, exquisite Brazilian teak flooring, rich knotty alder millwork, and hand-selected granite and stone details set a tone of timeless sophistication. Vaulted ceilings and strategically placed skylights bathe the interior in natural light, creating a warm, expansive ambiance throughout. The main level is thoughtfully designed for both daily living and elevated entertaining, featuring a formal dining room, a gourmet chef’s kitchen with a butler’s pantry, a spacious mudroom, and a flexible office or bedroom. A private studio with its own entrance and half bath offers the perfect space for creatives or remote professionals. The heart of the home is an inviting family room anchored by a striking stone gas fireplace with an antique barn timber mantel. Retreat to the luxurious primary suite, where a private deck offers foothill views, and amenities include a gas fireplace, spa-style bath with a jetted tub, steam shower, and a custom-designed walk-in closet. Upstairs, a loft with panoramic mtn vistas, an en-suite guest suite, a private laundry, and a second deck add to the home's comfort and appeal. The fully finished basement was designed with entertaining in mind—featuring a media/rec room with a wet bar, built-ins, drop-down movie screen, two additional guest suites with Jack-and-Jill bath, a private entrance, and hidden storage spaces. Outdoors, enjoy a secluded backyard retreat with a trellised patio, custom gas firepit, greenhouse, and raised garden beds. Eco-conscious upgrades include radiant floor heat, solar panels, whole-house water and air purification, two sump pumps, a backup generator, and more. Experience unmatched luxury, sustainability, and location!

Single Family Active

Price

^$ 3,945,000

Bedrooms

Full Bath

Half Bath

Property Type

Single Family

Taxes

^$ 27,295

Style

Contemporary

Lot Size

0.22

Year Built

2005

Town/City

Boulder

County/Region

Boulder

MLS | Web ID

3974464

Features

Interior

Interior Amenities Breakfast Bar Built-in Features Ceiling Fan(s) Eat-in Kitchen Five Piece Bath Granite Counters High Ceilings Jack & Jill Bathroom Kitchen Island Open Floorplan Pantry Sound System Vaulted Ceiling(s)

Basement Finished

Flooring Carpet Tile Wood

Total Fireplaces 3

Fireplace Features Basement Bedroom Family Room

Basement (Y/N) Y

Window Features Double Pane Windows Egress Windows Skylight(s) Window Coverings Window Treatments

Above Grade Finished Area 3933

Half Baths 2

1/4 Baths 0

3/4 Baths 2

Laundry Features Sink

Total Bedrooms 5

Below Grade Finished Area 2254

Main Level Bedrooms 1

Main Level Bathrooms 2

Total Baths 6

General

Sewer Public Sewer

Heating Radiant

Cooling Evaporative Cooling

Utilities Cable Available Electricity Connected Internet Access (Wired) Natural Gas Connected

Possession Close Plus 60 to 90 Days

Roof Composition

Appliances Bar Fridge Cooktop Dishwasher Disposal Double Oven Down Draft Dryer Gas Water Heater Refrigerator Sump Pump Washer

Zoning Res

Garage Spaces 2

Patio/Porch Features Covered Deck Front Porch Patio

Architectural Style Contemporary

Security Features Carbon Monoxide Detector(s)

Construction Materials Frame Stone Stucco

Exclusions Mini Fridge in Garage and Outdoor BBQ and Sellers Personal Items

Year Built 2005

View Mountain(s)

Levels Two

Property Subtype Single Family Residence

Tax Year 2024

Ownership Individual

County Boulder

Property Type Residential

HOA N

Attached Garage N

Subdivision Name Newlands

Facing Direction East

Full Baths 2

Status Active

High School Boulder

City Boulder

Senior Community Y/N N

High School District Boulder Valley RE 2

Lot Size Units Acres

Lot Size Square Feet 9583.2

Carport Spaces 0

Listing Terms Cash Conventional Jumbo

Elementary School Foothill

Tax Annual Amount 27295

Home Warranty Y/N N

Middle/Junior High School Casey

Property Condition Updated/Remodeled

Virtual Tour https://my.matterport.com/show/?m=XJZGexdMZfo&mls=1

Structure Type House

Standard Status Active

Occupancy Type Owner

Middle/Junior School District Boulder Valley RE 2

Elementary School District Boulder Valley RE 2

Exterior

Exterior Amenities Balcony Fire Pit Garden Gas Grill Gas Valve Private Yard Rain Gutters

Fencing Full

Parking Features Exterior Access Door Heated Garage Insulated Garage Oversized

Lot Features Landscaped Level Sprinklers In Front Sprinklers In Rear

Water Source Public

Total Parking 2

Lot Size Area 0.22

Foundation Details Slab

Building Area Total 6187

Lot Size Acres 0.22

Road Surface Type Paved

Other Equipment Air Purifier Home Theater

Internal Only

Street Number 1 3135

* Excluded Features

List By

Nexstep Real Estate Group

Broker

(303) 398-7012

Phone

Affordability Calculator

$26,886

Per Month

Monthly Principal & Interest: $24,612
Monthly Property Taxes: $2,275
Monthly Home Insurance: --

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Down Payment

Loan Term

Interest Rate

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Yearly Home Insurance

Default based on a 30-year fixed rate of 6.375% with 20% down. The estimated payment is offered for convenience and is not an offer of credit. Due to market fluctuations, interest rates are subject to change at any time and without notice. Your individual rate may vary. Rates may differ for FHA, VA or jumbo loans.

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Nearby

Trends
Schools

Single family listings in Boulder, CO

Average List Price ^$2,615,222

Percent of Sale Price 34%

About Boulder, CO

102,151 Population

6% Since 2002

^$65,436 Median Income

31.88 Median Age

18% Households with Children

View more area information

Trends Information provided by ATTOM Data Solutions.

1955676 Elementary School

1955678 Middle School

Boulder High School High School

See complete school information

Pricing History

Date	Price	Price Change	Description
7/27/2025	$3,945,000	-1.25%	Price Down
5/28/2025	$3,995,000		Listed Price

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3135 11th Street, Boulder, CO, 80304 is a Single Family Home for sale at $3,945,000 with 6,187 sqft and a lot size of 0.22. 3135 11th Street has 5 bedrooms, 4.2 baths, and was built in 2005. The property's zip code is 80304 which is in Boulder, CO

*Information deemed reliable but not guaranteed.

Financial calculator disclaimer: Default based on a 30-year fixed rate of 6.375% with 20% down. The estimated payment is offered for convenience and is not an offer of credit. Due to market fluctuations, interest rates are subject to change at any time and without notice. Your individual rate may vary. Rates may differ for FHA, VA or jumbo loans.

The data relating to real estate on this web site comes in part from the Internet Data eXchange (IDX) Program of the REcolorado. Real estate listings held by firms other than Weichert Realtors are marked with the IDX logo and detailed information about them includes the Listing Broker’s Firm Name.

The information being provided is 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.

Data is updated as of 12/11/2025.

This publication is designed to provide information with regard to the subject matter covered. It is displayed with the understanding that the publisher and authors are not engaged in rendering real estate, legal, accounting, tax, or other professional services and that the publisher and authors are not offering such advice in this publication. If real estate, legal, or other expert assistance is required, the services of a competent, professional person should be sought.

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PUBLISHER’S NOTICE: All real estate advertised herein is subject to the Federal Fair Housing Act and the Colorado Fair Housing Act, which Acts make it illegal to make or publish any advertisement that indicates any preference, limitation, or discrimination based on race, color, religion, sex, handicap, familial status, or national origin.

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3135 11th Street

Single Family Home for sale in Boulder, CO

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