427 Pine St, Boulder, CO 80302
OFF MARKET

427 Pine St
Boulder, CO 80302

Mapleton Hill
  • 5 Beds
  • 7 Baths
  • 5,971 sqft

$5,598,400

Trulia Estimate
as of Jun 24, 2026
Est. Refi. Payment $30,798/mo*
Refinance Your Home

$5,598,400

Trulia Estimate
as of Jun 24, 2026
Est. Refi. Payment $30,798/mo*
Refinance Your Home
5 Beds
7 Baths
5,971 sqft

Local Information

  • Map ViewExplore the area around 427 Pine St.
  • Schools1 Elementary School1 Middle School1 High School
  • Shop & Eat
-- mins to
Commute Destination

Description

Iconic Mapleton Hill foursquare. One of the most beautiful examples of historic preservation in Bldr. Built in 1906, meticulously renovated by current owners '12-'16. Towers above neighbors as tallest house on blk. Detached carriage house, 2 parking spaces in driveway, gorgeous lot, mature landscaping, covered front porch, back yard with water feature, patio for outdoor entertaining. 3 blks from Sanitas trails, 5 blks to Pearl St. Luxury living in one of Boulder's most prestigious locations.
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.

Home Highlights

Parking
Garage
Outdoor
No Info
A/C
Heating only
HOA
None
Price/Sqft
No Info
Listed
Less than a day ago

Home Details for 427 Pine St

Interior Features

Interior Details
BasementNumber of Rooms: 1
Heating & Cooling
Heating: Other, ElectricHeating Fuel: Other
Levels, Entrance, & Accessibility
Stories: 3

Exterior Features

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

Property Information

Year Built
Year Built: 1906Year Updated: 1988
Property Type / Style
Property Type: Single Family HomeArchitecture: split level

Community

Units in Building: 1

Lot Information

Lot Area: 6943 sqft

Price History for 427 Pine St

DatePriceEventSource
10/31/2017$3,500,000Sold
IRES as distributed by MLS GRID #815697
07/31/2017$3,800,000PriceChange
Agent Provided
06/08/2017$3,900,000PriceChange
Agent Provided
04/04/2017$4,100,000Listed For SaleAgent Provided
10/10/2016$4,450,000ListingRemovedAgent Provided
07/17/2016$4,450,000Listed For SaleAgent Provided
12/05/2011$145,188Sold
N/A
08/25/2011$1,349,900PriceChange
Agent Provided
08/10/2011$1,399,999PriceChange
Agent Provided
07/17/2011$1,450,000PriceChange
Agent Provided
06/04/2011$1,499,000PriceChange
Agent Provided
03/17/2011$1,550,000PriceChange
Agent Provided
03/04/2011$1,650,000PriceChange
Agent Provided
02/17/2011$1,550,000PriceChange
Agent Provided
12/20/2010$1,650,000PriceChange
Agent Provided
10/16/2009$1,699,000PriceChange
Agent Provided
09/15/2009$1,750,000PriceChange
Agent Provided
05/16/2009$1,850,000Listed For SaleAgent Provided
09/28/2008$2,100,000ListingRemovedAgent Provided
05/25/2008$2,100,000Listed For SaleAgent Provided
03/02/2008$2,199,000ListingRemovedAgent Provided
02/01/2008$2,199,000Listed For SaleAgent Provided

Market trends in Boulder

Last updated May 2026
Buyer'sMarketSeller'sMarket
Avg. sale price
$955K
$13.33KMoM
Sale-to-List Price
97.9%
1.0%MoM
Price per sq ft
$503
$12MoM
Available listings
775
41MoM
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Property Tax and Assessment

Year2025
Tax$32,290
Assessment$5,643,600
Home facts updated by county records

Comparable Sales for 427 Pine St

Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
720 Mapleton Ave, Boulder, CO
0.23
Single-Family Home
$4,587,500
09/29/25
5
5.5
5,091
720 Mapleton Ave, Boulder, CO
0.23
Single-Family Home
$4,587,500
09/29/25
5
5.5
3,675
2237 4th St, Boulder, CO
0.07
Single-Family Home
$2,180,000
09/29/25
4
4.5
4,108
2449 5th St, Boulder, CO
0.20
Single-Family Home
$2,651,475
05/01/26
5
4
3,549
2586 3rd St, Boulder, CO
0.32
Single-Family Home
$4,210,200
03/09/26
5
4
4,390
507 Valley View Dr, Boulder, CO
0.44
Single-Family Home
$4,287,600
06/18/26
5
5
5,799
2656 4th St, Boulder, CO
0.39
Single-Family Home
$5,850,000
03/09/26
6
5.5
4,814
625 Concord Ave, Boulder, CO
0.34
Single-Family Home
$2,700,000
02/25/26
4
3
4,640
2670 6th St, Boulder, CO
0.45
Single-Family Home
$5,090,000
10/20/25
5
5.5
4,032
2697 4th St, Boulder, CO
0.45
Single-Family Home
$4,000,000
11/21/25
6
5.5
3,887

Nearby homes

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Assigned Schools

These are the assigned schools for 427 Pine St.
View nearby schools on GreatSchools
The GreatSchools Rating compares schools on a variety of school quality indicators including test scores, college readiness, equity and more. Learn more.

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

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Homes for sale near 427 Pine St

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Off Market Homes Near 427 Pine St

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427 Pine St, Boulder, CO 80302 is a 5 bedroom, 7 bathroom, 5,971 sqft single-family home built in 1906. 427 Pine St is located in Mapleton Hill, Boulder. This property is not currently available for sale. 427 Pine St was last sold on Oct 31, 2017 for $3,500,000. The current Trulia Estimate for 427 Pine St is $5,598,400.