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.
Sold for $1,000,000
$1,000,000
635 Alpine Ave, Boulder, CO 80304
3beds
1,906sqft
Mixed Use
Built in 1909
8,414 Square Feet Lot
$1,416,100 Zestimate®
$525/sqft
$4,252 Estimated rent
Home value
$1,416,100
$1.26M - $1.61M
$4,252/mo
Zestimate® history
Owner options
List your home for rent
$4,252/mo
Rent Zestimate®
Find your next renter with Zillow Rental Manager. Plus, with online applications, you can quickly screen prospective tenants – for free.
$4,252/mo
Rent Zestimate®
Refinance and save
$5,788/mo
Est. payment
Refinancing to a lower rate could help reduce your monthly payments and save thousands over the life of the loan.
$5,788/mo
Est. payment
Explore your selling options
Work with a Zillow partner agent
Leverage their expertise and Zillow's premium Showcase listings to get your home seen by more buyers.
Get startedList with your own agent
Get your home in front of millions of buyers by listing it on Zillow.
Learn how to do itSell it yourself
Take full control of how buyers see your home on Zillow by listing For Sale by Owner (FSBO).
List your homeWhat's special
Zillow last checked:
Listing updated:
Listed by:
The Zach Zeldner Team 720-480-7650,
Compass - Boulder,
Ethan Bullock 303-501-4959,
Compass - Boulder
Bought with:
The Zach Zeldner Team
Compass - Boulder
Source: IRES as distributed by MLS GRID,MLS#: 1028307
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 3
- Bathrooms: 2
- Full bathrooms: 1
- 3/4 bathrooms: 1
- Main level bathrooms: 1
Primary bedroom
- Description: Wood
- Features: Shared Primary Bath
- Level: Main
- Area: 108 Square Feet
- Dimensions: 12 x 9
Bedroom 2
- Description: Wood
- Level: Main
- Area: 81 Square Feet
- Dimensions: 9 x 9
Bedroom 3
- Description: Vinyl
- Level: Lower
- Area: 153 Square Feet
- Dimensions: 9 x 17
Dining room
- Description: Luxury Vinyl
- Level: Main
- Area: 120 Square Feet
- Dimensions: 12 x 10
Family room
- Description: Luxury Vinyl
- Level: Main
- Area: 121 Square Feet
- Dimensions: 11 x 11
Kitchen
- Description: Luxury Vinyl
- Level: Main
- Area: 80 Square Feet
- Dimensions: 8 x 10
Laundry
- Description: Vinyl
- Level: Main
Living room
- Description: Luxury Vinyl
- Level: Main
- Area: 143 Square Feet
- Dimensions: 13 x 11
Heating
- Forced Air
Cooling
- Ceiling Fan(s)
Appliances
- Included: Electric Range, Refrigerator, Washer, Dryer, Microwave
Features
- Separate Dining Room, In-Law Floorplan
- Flooring: Wood
- Windows: Window Coverings
- Basement: Full,Partially Finished,Walk-Out Access
Interior area
- Total structure area: 1,906
- Total interior livable area: 1,906 sqft
- Finished area above ground: 1,906
Property
Parking
- Total spaces: 1
- Parking features: Detached
- Garage spaces: 1
- Details: Detached
Features
- Levels: Two
- Stories: 2
- Fencing: Fenced,Wood
Lot
- Size: 8,414 sqft
- Features: Corner Lot, Evergreen Trees, Deciduous Trees, Abuts Park
Details
- Parcel number: R0005377
- Zoning: RES
- Special conditions: Private Owner
Construction
Type & style
- Home type: SingleFamily
- Property subtype: Mixed Use
Materials
- Wood Siding
- Roof: Composition
Condition
- New construction: No
- Year built: 1909
Utilities & green energy
- Electric: Xcel
- Gas: Xcel
- Sewer: Public Sewer
- Water: City
- Utilities for property: Natural Gas Available, Electricity Available
Green energy
- Energy efficient items: Southern Exposure, Windows
Community & neighborhood
Location
- Region: Boulder
- Subdivision: Newlands
Other
Other facts
- Listing terms: Cash,Conventional
Price history
| Date | Event | Price |
|---|---|---|
| 8/2/2025 | Listing removed | $3,950$2/sqft |
Source: Zillow Rentals Report a problem | ||
| 7/28/2025 | Price change | $3,950-10.2%$2/sqft |
Source: Zillow Rentals Report a problem | ||
| 7/15/2025 | Price change | $4,400-11.1%$2/sqft |
Source: Zillow Rentals Report a problem | ||
| 7/12/2025 | Price change | $4,950-5.7%$3/sqft |
Source: Zillow Rentals Report a problem | ||
| 7/10/2025 | Listed for rent | $5,250$3/sqft |
Source: Zillow Rentals Report a problem | ||
| 5/23/2025 | Sold | $1,000,000-13%$525/sqft |
Source:  IRES as distributed by MLS GRID #1028307 Report a problem | ||
| 5/6/2025 | Pending sale | $1,150,000$603/sqft |
Source:  REcolorado as distributed by MLS GRID #IR1028307 Report a problem | ||
| 4/14/2025 | Price change | $1,150,000-3.8%$603/sqft |
Source: IRES as distributed by MLS GRID #1028307 Report a problem | ||
| 4/4/2025 | Pending sale | $1,195,000$627/sqft |
Source: REcolorado as distributed by MLS GRID #IR1028307 Report a problem | ||
| 3/13/2025 | Listed for sale | $1,195,000+109.6%$627/sqft |
Source: REcolorado as distributed by MLS GRID #IR1028307 Report a problem | ||
| 3/15/2012 | Sold | $570,000-12.3%$299/sqft |
Source: IRES as distributed by MLS GRID #662250 Report a problem | ||
| 12/16/2011 | Listing removed | $650,000$341/sqft |
Source: 8z Real Estate #662250 Report a problem | ||
| 8/5/2011 | Listed for sale | $650,000+8.3%$341/sqft |
Source: 8z Real Estate #662250 Report a problem | ||
| 7/17/2007 | Sold | $600,000$315/sqft |
Source: Public Record Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $8,559 +1.8% | $88,000 -14.2% |
| 2024 | $8,410 +22.1% | $102,578 +0.5% |
| 2023 | $6,889 +0.4% | $102,050 +37.6% |
| 2022 | $6,864 +12.4% | $74,181 -4.9% |
| 2021 | $6,106 | $77,999 +11.2% |
| 2020 | $6,106 +17.7% | $70,149 |
| 2019 | $5,189 | $70,149 +17.2% |
| 2018 | $5,189 | $59,846 -9.5% |
| 2017 | $5,189 -1.2% | $66,164 +9.1% |
| 2016 | $5,251 +5.6% | $60,663 +25.5% |
| 2015 | $4,973 +22.3% | $48,341 |
| 2014 | $4,065 +1.1% | $48,341 |
| 2013 | $4,021 +0.9% | $48,341 +0.7% |
| 2012 | $3,986 -7.7% | $47,999 |
| 2011 | $4,320 +7.1% | -- |
| 2010 | $4,034 +20.1% | $53,450 |
| 2009 | $3,359 +3.5% | $53,450 +1.8% |
| 2008 | $3,244 -2.4% | $52,490 |
| 2007 | $3,324 +3.9% | $52,490 +0.9% |
| 2006 | $3,200 +18.5% | $52,020 |
| 2005 | $2,702 +0.7% | $52,020 +17.6% |
| 2004 | $2,683 -0.4% | $44,220 |
| 2003 | $2,694 +10.3% | $44,220 +14.6% |
| 2002 | $2,441 | $38,590 -90.9% |
| 2001 | -- | $421,800 |
Find assessor info on the county website
Neighborhood: Newlands
Nearby schools
GreatSchools rating
- 8/10Foothill Elementary SchoolGrades: K-5Distance: 0.7 mi
- 5/10Casey Middle SchoolGrades: 6-8Distance: 0.5 mi
- 10/10Boulder High SchoolGrades: 9-12Distance: 1.1 mi
Schools provided by the listing agent
- Elementary: Foothill
- Middle: Casey
- High: Boulder
Source: IRES as distributed by MLS GRID. This data may not be complete. We recommend contacting the local school district to confirm school assignments for this home.
Get a cash offer in 3 minutes
Find out how much your home could sell for in as little as 3 minutes with a no-obligation cash offer.
Estimated market value
$1,416,100
Get a cash offer in 3 minutes
Find out how much your home could sell for in as little as 3 minutes with a no-obligation cash offer.
Estimated market value
$1,416,100
- Colorado
- Boulder County
- Boulder
- 80304
- Newlands
- 635 Alpine Ave
Nearby cities
Nearby neighborhoods
Nearby zip codes
Other Boulder Topics
