655 12th St, Boulder, CO 80302
Property image
Property image
OFF MARKET

$5,663,400

Trulia Estimate
  • 6 Beds
  • 5 Baths
  • 5,754 sqft (on 0.46 acres)

655 12th St, Boulder, CO 80302

East Chautauqua
Est. Refi. Payment $33,146/mo*
Refinance Your Home
Currently Off Market - Sold Mar 21, 2018 for $4,300,000

Home Value

Trulia Estimate
$5.66M
Since last month
Decreased$122K (-2.1%)
Since last year
Decreased$214K (-3.6%)
Since last sale
Increased$1M (+32.5%)
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 +20% in the last 10 years
MonthEstimated value
2026
November 2026$5.7M
October 2026$5.77M
September 2026$5.82M
August 2026$5.92M
July 2026$5.94M
June 2026$6.02M
May 2026$5.92M
April 2026$5.97M
March 2026$5.98M
February 2026$5.88M
January 2026$5.65M
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
1498 King Ave, Boulder, CO
0.33
Single-Family Home
$3,885,000
04/16/26
4
4.5
5,734
1400 Bluebell Ave, Boulder, CO
0.26
Single-Family Home
$4,750,000
08/28/26
5
5.5
4,845
546 14th St, Boulder, CO
0.18
Single-Family Home
$4,000,000
09/21/26
4
5
4,850
440 Christmas Tree Dr, Boulder, CO
0.57
Single-Family Home
$4,100,000
03/31/26
5
4.5
4,933
851 14th St, Boulder, CO
0.25
Single-Family Home
$2,995,000
04/02/26
5
3.5
4,773
765 13th Street, Boulder, CO
0.12
Single-Family Home
$2,300,606
08/10/26
6
3
3,395
820 6th St, Boulder, CO
0.49
Single-Family Home
$3,587,300
09/08/26
5
4.5
5,043
1380 Bluebell Ave, Boulder, CO
0.25
Single-Family Home
$3,300,000
02/23/26
3
4
4,066
1330 Mariposa Ave, Boulder, CO
0.20
Single-Family Home
$3,500,000
12/09/25
4
3
2,640
721 9th St, Boulder, CO
0.26
Single-Family Home
$2,609,700
12/12/25
4
5
2,793

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
650 11th St, Boulder, CO 80302
0.02
$3,551,300
5
4
6,480
Off Market
651 12th St, Boulder, CO 80302
0.03
$2,227,000
4
3
3,215
Off Market
650 12th St, Boulder, CO 80302
0.04
$5,051,500
5
5
7,149
Off Market
600 11th St, Boulder, CO 80302
0.04
$4,087,500
3
3
3,408
Off Market
707 12th St, Boulder, CO 80302
0.04
$3,639,800
4
4
5,392
Off Market
620 12th St, Boulder, CO 80302
0.04
$3,969,000
5
4
4,362
Off Market
605 12th St, Boulder, CO 80302
0.05
$2,166,800
3
3
2,820
Off Market
1123 Baseline Rd, Boulder, CO 80302
0.05
$2,979,200
5
3
4,303
Off Market
1215 Baseline Rd, Boulder, CO 80302
0.05
$2,174,900
4
3
3,631
Off Market
712 12th St, Boulder, CO 80302
0.05
$591,800
1
1
989
Off Market
823 1/2 12th St, Boulder, CO 80302
0.06
-
1
1
-
Off Market
715 12th St, Boulder, CO 80302
0.06
$3,288,400
5
5
3,712
Off Market
695 11th St, Boulder, CO 80302
0.06
$3,925,000
5
6.5
7,040
Off Market
655 11th St, Boulder, CO 80302
0.06
$2,506,800
3
3
4,228
Off Market
720 11th St, Boulder, CO 80302
0.06
$3,193,800
6
4
5,089
Off Market
1290 Baseline Rd, Boulder, CO 80302
0.06
$1,613,400
4
2
1,808
Off Market
605 11th St, Boulder, CO 80302
0.06
$4,893,100
5
6
7,213
Off Market
605 13th St, Boulder, CO 80302
0.07
$4,270,200
5
4
3,938
Off Market
3 Chautauqua Park Park #A, Boulder, CO 80302
0.07
-
-
-
-
Off Market
728 12th St, Boulder, CO 80302
0.07
$1,609,700
4
3
1,920
Off Market

Local Information

  • Map ViewExplore the area around 655 12th St.
  • Schools1 Preschool School1 Elementary School1 Middle School1 High School
  • Shop & Eat
-- mins to
Commute Destination

Home Highlights

Single-Family Home
Built in 1908
0.46 acre lot
5,754 sqft
$984/sqft
Garage

About this House

Historic estate property situated on a half-acre lot boasts unparalleled craftsmanship, historic detail & finishes: abundant built-ins, lead glass windows & antique lighting. Tastefully maintained & updated, this light-filled & sumptuous home grandly sits on a large hidden lot, steps from the amenities & open space of Chautauqua Park. Rising 3 stories w/ Flatirons & City views & stunning wrap around porch, walk-out basement guest suite, garage home office, pool & hot tub. See 3D tour & docs.
655 12th St, Boulder, CO 80302 is a 6 bedroom, 5 bathroom, 5,754 sqft single-family home in East Chautauqua, built in 1908. It last sold for $4,300,000 on Mar 21, 2018. This property is not currently displayed as for sale or rent on Trulia. The Trulia Estimate is $5,663,400.

Home Details for 655 12th St

Interior Features

Interior Details
BasementNumber of Rooms: 13
Heating & Cooling
Heating: RadiantHeating Fuel: Radiant
Levels, Entrance, & Accessibility
Stories: 3

Exterior Features

Exterior Home Features
Roof: AsphaltDeckExterior: Brick, Cement Concrete
Parking & Garage
GarageParking: Garage Detached

Property Information

Year Built
Year Built: 1908Year Updated: 1985
Property Type / Style
Property Type: Single Family HomeArchitecture: Other

Community

Units in Building: 1

Lot Information

Lot Area: 0.46 acres

Price and Tax history

DateEventPrice
Mar 21, 2018
Source: IRES as distributed by MLS GRID #844700
Sold
$4,300,000
Oct 29, 2017
Source: Agent Provided
ListingRemoved
$4,500,000
Apr 19, 2017
Source: Agent Provided
PriceChange
$4,500,000
Price decreased by 7%
Jan 19, 2017
Source: Agent Provided
Listed For Sale
$4,850,000
Oct 27, 2016
Source: Agent Provided
ListingRemoved
$4,950,000

Market trends in Boulder

Last updated October 2026
Buyer'sMarketSeller'sMarket
Avg. sale price
$933K
$34.55KMoM
Sale-to-List Price
97.7%
0.1%MoM
Price per sq ft
$513
$19MoM
Available listings
717
31MoM
Sourced by Trulia Market Trends

Around this home

Neighborhood Overview

East Chautauqua
See Local Highlights
Neighborhood stats provided by third party data sources.

What Locals Say about East Chautauqua

At least 10 Trulia users voted on each feature.

  • 100 % Say there are sidewalks

  • 83 % Say people would walk alone at night

  • 83 % Say it's dog friendly

  • 77 % Say there's wildlife

  • 71 % Say there's holiday spirit

  • 67 % Say it's walkable to restaurants

  • 67 % Say yards are well-kept

  • 67 % Say parking is easy

  • 64 % Say streets are well-lit

  • 60 % Say car is needed

  • 54 % Say neighbors are friendly

  • 50 % Say they plan to stay for at least 5 years

  • 50 % Say it's quiet

  • 44 % Say kids play outside

  • 43 % Say there are community events

  • 33 % Say it's walkable to grocery stores

Sourced by Trulia users. Learn more about our methodology.
  • Chris O
    "I drive 18 miles towards Denver and / or hit DIA 1 time per week. Proximity to Baseline and 36 is awesome as I don’t have to deal with Boulder traffic. Great neighborhood"
    0
    Flag
  • Francie A.
    "Proximity without congestion"
    0
    Flag

LGBTQ Local Legal Protections

Frequently asked questions about 655 12th St

  • What is 655 12th St estimated to be worth?
    Trulia's estimated value for 655 12th St in Boulder, CO is $5,663,400.
  • What is the price history for 655 12th St?
    655 12th St in Boulder, CO last sold for $4,300,000 in March 2018.
  • Is Boulder a buyer's or seller's market?
    Boulder is currently a buyer's market, based on recent for-sale activity.
  • What's the median sale price in Boulder?
    The median sale price in Boulder is $933K. That is up $34.55K from the prior month.
  • How big is the lot at 655 12th St?
    The lot at 655 12th St in Boulder, CO is about 0.46 acres (19,885 sq ft).
  • Does 655 12th St have a garage?
    Yes, 655 12th St in Boulder, CO has a garage.

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Apartments for Rent

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Off Market Homes Near 655 12th St

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