645 North St, Boulder, CO 80304
OFF MARKET

$1,370,200

Trulia Estimate
  • 4 Beds
  • 2 Baths
  • 1,564 sqft

645 North St, Boulder, CO 80304

Mapleton Hill
Est. Refi. Payment $7,980/mo*
Refinance Your Home
Currently Off Market - Sold Oct 19, 2010 for $406,000

Home Value

Trulia Estimate
$1.37M
Since last month
Decreased$16K (-1.1%)
Since last year
Increased$44K (+3.3%)
Since last sale
Increased$964K (+237.5%)
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 +48% in the last 10 years
MonthEstimated value
2026
September 2026$1.37M
August 2026$1.36M
July 2026$1.39M
June 2026$1.4M
May 2026$1.4M
April 2026$1.37M
March 2026$1.35M
February 2026$1.3M
January 2026$1.26M
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
810 Alpine Ave, Boulder, CO
0.07
Single-Family Home
$1,255,000
06/30/26
3
2
1,700
653 Dewey Avenue, Boulder, CO
0.07
Single-Family Home
$1,600,000
06/01/26
3
2
1,800
2651 9th St, Boulder, CO
0.07
Single-Family Home
$960,000
04/28/26
4
3
1,968
826 Maxwell Avenue, Boulder, CO
0.25
Single-Family Home
$1,450,000
06/30/26
3
2
1,620
3075 5th St, Boulder, CO
0.43
Single-Family Home
$995,000
03/11/26
3
2
1,291
616 Dewey Ave, Boulder, CO
0.10
Single-Family Home
$1,200,000
05/11/26
2
1
1,388
405 Valley View Dr, Boulder, CO
0.21
Single-Family Home
$1,810,000
03/02/26
3
2.5
1,937
2815 11th St, Boulder, CO
0.26
Single-Family Home
$1,595,000
03/05/26
4
3
2,070
3150 5th Street, Boulder, CO
0.51
Single-Family Home
$1,000,000
04/20/26
3
2
1,836
665 North St, Boulder, CO
0.02
Single-Family Home
$690,000
09/25/25
2
1
790

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
665 North St, Boulder, CO 80304
0.02
$684,600
2
1
790
Off Market
780 Alpine Ave, Boulder, CO 80304
0.04
$930,000
-
-
-
Recently Sold
804 Alpine Ave, Boulder, CO 80304
0.05
$2,672,900
4
5
3,742
Off Market
618 Alpine Ave #4, Boulder, CO 80304
0.03
$769,900
2
1.5
1,170
Off Market
810 Alpine Ave, Boulder, CO 80304
0.07
$1,255,000
3
2
1,700
Recently Sold
750 North St, Boulder, CO 80304
0.05
$1,247,100
5
2
2,240
Off Market
2651 9th St, Boulder, CO 80304
0.07
$960,000
4
3
1,968
Recently Sold
635 Alpine Ave, Boulder, CO 80304
0.06
$1,368,700
3
2
1,906
Off Market
815 Alpine Ave #2, Boulder, CO 80304
0.08
$495,000
2
1
872
For Sale
2725 8th St, Boulder, CO 80304
0.08
$2,058,000
8
6
2,832
For Sale
620 North St, Boulder, CO 80304
0.04
$2,188,500
6
4
4,075
Off Market
815 Alpine Ave #4, Boulder, CO 80304
0.09
$618,600
2
1
1,052
Off Market

Local Information

  • Map ViewExplore the area around 645 North St.
  • Schools1 Elementary School1 Middle School1 High School
  • Shop & Eat
-- mins to
Commute Destination

Home Highlights

Single-Family Home
Built in 1958
1,564 sqft
$876/sqft

About this House

This single-family home is located at 645 North St, Boulder, CO. 645 North St is in the Mapleton Hill neighborhood in Boulder, CO and in ZIP code 80304. This property has 4 bedrooms, 2 bathrooms and approximately 1,564 sqft of floor space. This property has a lot size of 5874 sqft and was built in 1958.
645 North St, Boulder, CO 80304 is a 4 bedroom, 2 bathroom, 1,564 sqft single-family home in Mapleton Hill, built in 1958. It last sold for $406,000 on Oct 19, 2010. This property is not currently displayed as for sale or rent on Trulia. The Trulia Estimate is $1,370,200, with a rent estimate of $3,968/month.

Home Details for 645 North St

Interior Features

Heating & Cooling
Heating: Forced AirHeating Fuel: Forced Air
Levels, Entrance, & Accessibility
Stories: 1
Interior Details
Number of Rooms: 8

Property Information

Year Built
Year Built: 1958Year Updated: 1980
Property Type / Style
Property Type: Single Family HomeArchitecture: Ranch / Rambler

Exterior Features

Exterior Home Features
Exterior: Shingle, Wood

Community

Units in Building: 2

Lot Information

Lot Area: 5874 sqft

Price and Tax history

DateEventPrice
Oct 19, 2010
Source: N/A
Sold
$406,000
Apr 30, 2010
Source: N/A
Sold
$406,000

Market trends in Boulder

Last updated August 2026
Buyer'sMarketSeller'sMarket
Avg. sale price
$904K
$6.67KMoM
Sale-to-List Price
98.2%
0.2%MoM
Price per sq ft
$489
$10MoM
Available listings
765
3MoM

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 645 North St

  • What is 645 North St estimated to be worth?
    Trulia's estimated value for 645 North St in Boulder, CO is $1,370,200.
  • What is the price history for 645 North St?
    645 North St in Boulder, CO last sold for $406,000 in October 2010.
  • 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 $904K. That is up $6.67K from the prior month.
  • How big is the lot at 645 North St?
    The lot at 645 North St in Boulder, CO is about 0.13 acres (5,874 sq ft).

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