428 Alpine Ave, Boulder, CO 80304
OFF MARKET

428 Alpine Ave
Boulder, CO 80304

Mapleton Hill
  • 2 Beds
  • 1 Bath
  • 1,140 sqft

$1,118,700

Trulia Estimate
as of Aug 23, 2026
Est. Refi. Payment $6,249/mo*
Refinance Your Home

$1,118,700

Trulia Estimate
as of Aug 23, 2026
Est. Refi. Payment $6,249/mo*
Refinance Your Home
2 Beds
1 Bath
1,140 sqft

Home Value

Trulia Estimate
$1.12M
Since last month
Increased$17K (+1.6%)
Since last year
Increased$89K (+8.7%)
Since last sale
Increased$349K (+45.3%)
Learn more about this home's value by checking out its Trulia Estimate, the value of nearby homes, and how much similar homes have sold for.

Trulia Estimate

The of this home's value increased by +35% in the last 10 years
MonthEstimated value
2026
August 2026$1.12M
July 2026$1.1M
June 2026$1.13M
May 2026$1.13M
April 2026$1.1M
March 2026$1.11M
February 2026$1.09M
January 2026$1.06M
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016

Comparable sales

These are recently sold homes that have a similar location or other similar features to this home, like bedrooms, bathrooms, and square footage. Get a sense of the expected prices in the area by viewing these homes.
Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
2843 4th St, Boulder, CO
0.16
Single-Family Home
$1,000,000
04/07/26
2
1
1,122
616 Dewey Ave, Boulder, CO
0.20
Single-Family Home
$1,200,000
05/11/26
2
1
1,388
665 North St, Boulder, CO
0.20
Single-Family Home
$690,000
09/25/25
2
1
790
3005 6th St, Boulder, CO
0.30
Single-Family Home
$1,000,000
05/22/26
2
1
671
2435 7th St, Boulder, CO
0.33
Single-Family Home
$1,150,000
10/30/25
3
1
1,170
2915 11th St, Boulder, CO
0.43
Single-Family Home
$1,258,823
06/16/26
2
1
964
900 Portland Pl, Boulder, CO
0.33
Single-Family Home
$804,000
07/07/26
3
2
1,152
3217 Broadway St, Boulder, CO
0.71
Single-Family Home
$820,000
08/11/26
2
1
1,059
810 Alpine Ave, Boulder, CO
0.24
Single-Family Home
$1,255,000
06/30/26
3
2
1,700
3075 5th St, Boulder, CO
0.36
Single-Family Home
$995,000
03/11/26
3
2
1,291

Nearby home prices

Get a sense of expected prices in the area by checking the value of nearby homes.
Address
Distance
Price
Bed
Bath
Sqft
Status
410 Alpine Ave, Boulder, CO 80304
0.01
$1,649,700
3
2
1,756
Off Market
405 Valley View Dr, Boulder, CO 80304
0.04
$1,810,000
3
2.5
1,937
Recently Sold
2697 4th St, Boulder, CO 80304
0.06
$4,000,000
6
5.5
3,887
Recently Sold
415-417 Alpine, Boulder, CO 80304
0.03
$1,340,300
6
3
2,942
Off Market
2656 4th St, Boulder, CO 80304
0.07
$5,850,000
6
5.5
4,814
Recently Sold
507 Valley View Dr, Boulder, CO 80304
0.06
$4,287,600
5
5
5,799
Recently Sold
2675 Dakota Pl #(newlands), Boulder, CO 80304
0.09
$4,125,000
5
4.5
5,989
Recently Sold
2725 5th St, Boulder, CO 80304
0.05
$1,215,300
3
1.5
1,214
Off Market
403 Dewey Ave, Boulder, CO 80304
0.10
$2,491,300
5
3
3,268
Off Market
2730 4th St, Boulder, CO 80304
0.07
$1,335,000
3
2
2,073
Off Market
508 Valley View Dr, Boulder, CO 80304
0.09
$1,340,600
3
3
2,918
Off Market
516 Valley View Dr, Boulder, CO 80304
0.08
$1,422,700
4
2.5
2,037
Off Market

Local Information

  • Map ViewExplore the area around 428 Alpine Ave.
  • Schools1 Elementary School1 Middle School1 High School
  • Shop & Eat
-- mins to
Commute Destination

Home Highlights

Property Type
Single-Family Home
Year Built
1910
Living Area
1,140 sqft
Price/Sqft
$981
Parking
Garage

About this House

This single-family home is located at 428 Alpine Ave, Boulder, CO. 428 Alpine Ave is in the Mapleton Hill neighborhood in Boulder, CO and in ZIP code 80304. This property has 2 bedrooms, 1 bathroom and approximately 1,140 sqft of floor space. This property has a lot size of 5777 sqft and was built in 1910.
428 Alpine Ave, Boulder, CO 80304 is a 2 bedroom, 1 bathroom, 1,140 sqft single-family home in Mapleton Hill, built in 1910. It last sold for $770,000 on Jan 21, 2025. It is currently off market. The Trulia Estimate is $1,118,700, with a rent estimate of $3,215/month.

Home Details for 428 Alpine Ave

Interior Features

Heating & Cooling
Heating: WallHeating Fuel: Wall
Levels, Entrance, & Accessibility
Stories: 1
Interior Details
Number of Rooms: 5

Exterior Features

Exterior Home Features
Roof: AsphaltExterior: Shingle, Wood
Parking & Garage
GarageParking: Garage Detached

Property Information

Year Built
Year Built: 1910Year Updated: 1910
Property Type / Style
Property Type: Single Family HomeArchitecture: Ranch / Rambler

Community

Units in Building: 1

Lot Information

Lot Area: 5777 sqft

Price and Tax history

DateEventPrice
Jan 21, 2025
Source: N/A
Sold
$770,000

Market trends in Boulder

Last updated July 2026
Buyer'sMarketSeller'sMarket
Avg. sale price
$897K
$10.37KMoM
Sale-to-List Price
98.4%
0.1%MoM
Price per sq ft
$499
$4MoM
Available listings
760
19MoM

Around this home

Neighborhood Overview

Mapleton Hill
See Local Highlights
Neighborhood stats provided by third party data sources.

What Locals Say about Mapleton Hill

At least 9 Trulia users voted on each feature.

  • 100 % Say it's walkable to restaurants

  • 100 % Say there are sidewalks

  • 95 % Say it's dog friendly

  • 90 % Say it's walkable to grocery stores

  • 84 % Say yards are well-kept

  • 82 % Say people would walk alone at night

  • 78 % Say kids play outside

  • 75 % Say there's wildlife

  • 67 % Say there's holiday spirit

  • 67 % Say parking is easy

  • 67 % Say there are community events

  • 64 % Say it's quiet

  • 63 % Say they plan to stay for at least 5 years

  • 57 % Say neighbors are friendly

  • 56 % Say streets are well-lit

  • 29 % Say car is needed

Sourced by Trulia users. Learn more about our methodology.
  • Trulia User
    "I bike to campus in 20 minutes and it’s great besides the traffic and gas fumes from cars which sucks transit is very good here, bus stops all up and down Broadway."
    0
    Flag
  • Trulia User
    "It seems as if most people own dogs . Very dog friendly . Dogs always seem well trained . Dogs also seem very friendly . "
    1
    Flag
  • Liz J.
    "There are lots of dog walkers and runners. Many wet dogs show that there is good swimming in the ditches. "
    1
    Flag
  • Taraarnolds
    "Loads of people out walking dogs and many folks stopping to chat too. You'll sometimes hear a dog or two barking, but never for long."
    0
    Flag
  • Thomas
    "I've lived in the Mapleton Hill neighborhood for 5 years. It is so convenient and quaint; my kids just love having the freedom to play with all the other kids here."
    1
    Flag
  • Maxclauson c. n.
    "Historic neighborhood that is close to town but secluded enough to be calm and quiet. Filled with interesting new arrivals and long time residents. "
    3
    Flag
  • Noah B.
    "Quiet and calm neighborhood, close to everything that makes Boulder great. Easy access to Pearl, Sanitas, Wonderland, and Ideal Market area. "
    1
    Flag
  • amazingdairy
    "West Pearl is truly a neighborhood unto itself, with a variety of shops & cafes and easy access to trails. Start your day with some tea and scones at Spruce Confections, enjoy browsing various antique stores and Two Hand Paperie, then select a bottle of wine at West End Wine Shop. Lolita's is conveniently located across the street to pick up last minute groceries for dinner, or you can enjoy a slice at Nick and Willy's and have some confectionary treats at Piece, Love & Chocolate. Settlers' Park is just down the street, as well as the trail heads to Red Rocks & Sanitas, and the Boulder Bike Path. When you live here, everything that makes Boulder so wonderful is only steps away!"
    2
    Flag

LGBTQ Local Legal Protections

Frequently asked questions about 428 Alpine Ave

  • What is 428 Alpine Ave estimated to be worth?
    Trulia's estimated value for 428 Alpine Ave in Boulder, CO is $1,118,700.
  • What is the price history for 428 Alpine Ave?
    428 Alpine Ave in Boulder, CO last sold for $770,000 in January 2025.
  • Is Boulder a buyer's or seller's market?
    Boulder is currently a balanced market, based on recent for-sale activity.
  • What's the median sale price in Boulder?
    The median sale price in Boulder is $897K. That is up $10.37K from the prior month.
  • How big is the lot at 428 Alpine Ave?
    The lot at 428 Alpine Ave in Boulder, CO is about 0.13 acres (5,777 sq ft).
  • Does 428 Alpine Ave have a garage?
    Yes, 428 Alpine Ave in Boulder, CO has a garage.

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