635 Alpine Ave, Boulder, CO 80304
OFF MARKET

635 Alpine Ave
Boulder, CO 80304

Newlands
  • 3 Beds
  • 2 Baths
  • 1,906 sqft

$1,401,800

Trulia Estimate
as of May 9, 2026
Est. Refi. Payment $7,562/mo*

$1,401,800

Trulia Estimate
as of May 9, 2026
Est. Refi. Payment $7,562/mo*
3 Beds
2 Baths
1,906 sqft

Homes for sale near 635 Alpine Ave

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Apartments for Rent

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Local Information

Map showing home location
© Google
-- mins to
Commute Destination

Description

A rare and versatile opportunity in the heart of West Boulder's beloved Newlands neighborhood. Set on an expansive 8,400-square-foot lot, this duplex-zoned property directly borders North Boulder Park, offering an exceptional canvas for redevelopment or a custom home in one of the city's most sought-after enclaves. The existing cottage includes a welcoming wraparound front porch, hardwood floors, and a flexible walk-out lower level with a private entrance and second kitchen-ideal for rental income or multi-unit living as you plan your future project. The true value of this property lies in its unbeatable location. With North Boulder Park as your backyard, enjoy year-round recreation, from summer picnics and sports fields to groomed cross-country ski trails in winter. Just minutes away, you'll find Ideal Market, renowned dining, and the vibrant energy of Pearl Street, while nearby Mount Sanitas offers world-class hiking and outdoor adventure. An incredible setting, limitless potential, and a premier Boulder address-this is a rare opportunity to secure a coveted piece of real estate in one of the city's most desirable neighborhoods.
This property is off market, which means it's not currently listed for sale or rent on Trulia. This may be different from what's available on other websites or public sources. This description is from October 21, 2025

Home Highlights

Parking
Garage
Outdoor
No Info
A/C
Heating & Cooling
HOA
None
Price/Sqft
No Info
Listed
180+ days ago

Home Details for 635 Alpine Ave

Interior Features

Interior Details
Basement: Full,Partially Finished,Walk-Out AccessNumber of Rooms: 8Types of Rooms: Primary Bedroom, Bedroom 2, Bedroom 3, Dining Room, Family Room, Kitchen, Laundry, Living Room
Beds & Baths
Number of Bedrooms: 3Number of Bathrooms: 2Number of Bathrooms (full): 1Number of Bathrooms (three quarters): 1Number of Bathrooms (main level): 1
Dimensions and Layout
Living Area: 1906 Square Feet
Appliances & Utilities
Utilities: Natural Gas Available, Electricity AvailableAppliances: Electric Range, Refrigerator, Washer, Dryer, MicrowaveDryerMicrowaveRefrigeratorWasher
Heating & Cooling
Heating: Forced AirHas CoolingAir Conditioning: Ceiling Fan(s)Has HeatingHeating Fuel: Forced Air
Gas & Electric
Electric: XcelGas: XcelHas Electric on Property
Windows, Doors, Floors & Walls
Window: Window CoveringsFlooring: Wood
Levels, Entrance, & Accessibility
Stories: 2Levels: TwoFloors: Wood
View
No View

Exterior Features

Exterior Home Features
Roof: CompositionFencing: Fenced, Wood
Parking & Garage
Number of Garage Spaces: 1Number of Covered Spaces: 1Other Parking: DetachedNo CarportHas a GarageNo Attached GarageParking Spaces: 1Parking: Garage
Frontage
Not on Waterfront
Water & Sewer
Sewer: Public Sewer
Farm & Range
Does Not Include Irrigation Water Rights
Finished Area
Finished Area (above surface): 1906 Square Feet

Property Information

Year Built
Year Built: 1909
Property Type / Style
Property Type: ResidentialProperty Subtype: Mixed Use
Building
Construction Materials: Wood SidingNot a New ConstructionNot Attached Property
Property Information
Usage of Home: Single Family, Multi-FamilyNot Included in Sale: Seller's personal property.Parcel Number: R0005377

Price & Status

Price
List Price: $1,150,000

Active Status

MLS Status: Sold

Location

Direction & Address
City: BoulderCommunity: Newlands
School Information
Elementary School: FoothillJr High / Middle School: CaseyHigh School: BoulderHigh School District: Boulder Valley Dist RE2

Building

Building Area
Building Area: 1906 Square Feet

HOA

No HOA

Lot Information

Lot Area: 8414 sqft

Listing Info

Special Conditions: Private Owner

Offer

Listing Terms: Cash, Conventional

Energy

Energy Efficiency Features: Southern Exposure, Windows

Miscellaneous

BasementMls Number: 1028307Attribution Contact: 7204807650Above Grade Unfinished Area: 1906Activation Date: Thu Mar 13 2025Back On Market Date: Mon Apr 14 2025Showing Service Name: ShowingTime
Last check for updates: about 21 hours ago
Listed by The Zach Zeldner Team, (720) 480-7650
Compass - Boulder
Ethan Bullock, (303) 501-4959
Compass - Boulder
Bought with: The Zach Zeldner Team, (720) 480-7650, Compass - Boulder
Source: IRES as distributed by MLS GRID, MLS#1028307

Price History for 635 Alpine Ave

DatePriceEventSource
08/02/2025$3,950ListingRemovedZillow Rentals
07/28/2025$3,950PriceChange
Zillow Rentals
07/15/2025$4,400PriceChange
Zillow Rentals
07/12/2025$4,950PriceChange
Zillow Rentals
07/10/2025$5,250Listed For RentZillow Rentals
05/23/2025$1,000,000Sold
IRES as distributed by MLS GRID #1028307
05/06/2025$1,150,000PendingREcolorado as distributed by MLS GRID #IR1028307
04/14/2025$1,150,000PriceChange
IRES as distributed by MLS GRID #1028307
04/04/2025$1,195,000PendingREcolorado as distributed by MLS GRID #IR1028307
03/13/2025$1,195,000Listed For SaleREcolorado as distributed by MLS GRID #IR1028307
03/15/2012$570,000Sold
IRES as distributed by MLS GRID #662250
12/16/2011$650,000ListingRemovedAgent Provided
08/05/2011$650,000Listed For SaleAgent Provided
07/17/2007$600,000Sold
N/A
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Property Tax and Assessment

Year2025
Tax$8,559
Assessment$1,408,000
Home facts updated by county records

Comparable Sales for 635 Alpine Ave

Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
0.14
Single-Family Home
$1,365,000
06/11/25
3
3
2,918
0.37
Single-Family Home
$995,000
03/11/26
3
2
1,291
0.45
Single-Family Home
$1,000,000
04/20/26
3
2
1,836
0.11
Single-Family Home
$1,450,000
05/30/25
4
2.5
2,037
0.09
Single-Family Home
$960,000
04/28/26
4
3
1,968
0.16
Single-Family Home
$1,435,500
06/03/25
3
2
2,128
0.24
Single-Family Home
$1,705,000
07/22/25
3
2.5
2,064
0.23
Single-Family Home
$1,595,000
03/05/26
4
3
2,070

Assigned Schools

These are the assigned schools for 635 Alpine Ave.
The GreatSchools Rating compares schools on a variety of school quality indicators including test scores, college readiness, equity and more. Learn more.

Neighborhood Overview

Neighborhood stats provided by third party data sources.

What Locals Say about Newlands

At least 11 Trulia users voted on each feature.
  • 100 % Say there's holiday spirit

  • 100 % Say it's dog friendly

  • 94 % Say it's walkable to restaurants

  • 92 % Say parking is easy

  • 92 % Say yards are well-kept

  • 91 % Say it's walkable to grocery stores

  • 83 % Say there are sidewalks

  • 83 % Say kids play outside

  • 81 % Say people would walk alone at night

  • 77 % Say there's wildlife

  • 65 % Say neighbors are friendly

  • 64 % Say they plan to stay for at least 5 years

  • 61 % Say car is needed

  • 59 % Say it's quiet

  • 50 % Say streets are well-lit

  • 50 % Say there are community events

Learn more about our methodology.
  • susanljosephs
    "The most sought after neighborhood in Boulder, great schools, access to mountain trails, friendly neighbors, hard to find property in this neighborhood."

LGBTQ Local Legal Protections

Based on information submitted to the MLS GRID as of 2026-05-08 03:23:22 PDT. All data is obtained from various sources and may not have been verified by broker or MLS GRID. Supplied Open House Information is subject to change without notice. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information. Some IDX listings have been excluded from this website. Click here for more information

Homes for rent near 635 Alpine Ave

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Off Market Homes Near 635 Alpine Ave

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Explore by feature

635 Alpine Ave, Boulder, CO 80304 is a 3 bedroom, 2 bathroom, 1,906 sqft single-family home built in 1909. 635 Alpine Ave is located in Newlands, Boulder. This property is not currently available for sale. 635 Alpine Ave was last sold on May 23, 2025 for $1,000,000 (13% lower than the asking price of $1,150,000). The current Trulia Estimate for 635 Alpine Ave is $1,401,800.