427 Pine St
Boulder, CO 80302
Mapleton Hill- 5 Beds
- 7 Baths
- 5,971 sqft
5 Beds
7 Baths
5,971 sqft
Local Information
-- mins to
Home Highlights
Property Type
Single-Family Home
Year Built
1906
Living Area
5,971 sqft
Price/Sqft
$937
Parking
Garage
About this House
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.
427 Pine St, Boulder, CO 80302 is a 5 bedroom, 7 bathroom, 5,971 sqft single-family home in Mapleton Hill, built in 1906. It last sold for $3,500,000 on Oct 31, 2017. It is currently off market. The Trulia Estimate is $5,593,100, with a rent estimate of $7,964/month.
Home Details for 427 Pine St
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Interior Details BasementNumber of Rooms: 1 |
Heating & Cooling Heating: Other, ElectricHeating Fuel: Other |
Levels, Entrance, & Accessibility Stories: 3 |
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Exterior Home Features Roof: AsphaltExterior: Stone, Brick, Cement Concrete |
Parking & Garage GarageParking: Garage Detached |
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Year Built Year Built: 1906Year Updated: 1988 |
Property Type / Style Property Type: Single Family HomeArchitecture: split level |
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Units in Building: 1 |
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Lot Area: 6943 sqft |
Price History for 427 Pine St
| Date | Price | Event | Source |
|---|---|---|---|
| 10/31/2017 | $3,500,000 | Sold | IRES as distributed by MLS GRID #815697 |
| 07/31/2017 | $3,800,000 | PriceChange | Agent Provided |
| 06/08/2017 | $3,900,000 | PriceChange | Agent Provided |
| 04/04/2017 | $4,100,000 | Listed For Sale | Agent Provided |
| 10/10/2016 | $4,450,000 | ListingRemoved | Agent Provided |
| 07/17/2016 | $4,450,000 | Listed For Sale | Agent Provided |
| 12/05/2011 | $145,188 | Sold | N/A |
| 08/25/2011 | $1,349,900 | PriceChange | Agent Provided |
| 08/10/2011 | $1,399,999 | PriceChange | Agent Provided |
| 07/17/2011 | $1,450,000 | PriceChange | Agent Provided |
| 06/04/2011 | $1,499,000 | PriceChange | Agent Provided |
| 03/17/2011 | $1,550,000 | PriceChange | Agent Provided |
| 03/04/2011 | $1,650,000 | PriceChange | Agent Provided |
| 02/17/2011 | $1,550,000 | PriceChange | Agent Provided |
| 12/20/2010 | $1,650,000 | PriceChange | Agent Provided |
| 10/16/2009 | $1,699,000 | PriceChange | Agent Provided |
| 09/15/2009 | $1,750,000 | PriceChange | Agent Provided |
| 05/16/2009 | $1,850,000 | Listed For Sale | Agent Provided |
| 09/28/2008 | $2,100,000 | ListingRemoved | Agent Provided |
| 05/25/2008 | $2,100,000 | Listed For Sale | Agent Provided |
| 03/02/2008 | $2,199,000 | ListingRemoved | Agent Provided |
| 02/01/2008 | $2,199,000 | Listed For Sale | Agent Provided |
Market trends in Boulder
Last updated June 2026
Avg. sale price
$891K
$60.83KMoM
Sale-to-List Price
98.2%
0.4%MoM
Price per sq ft
$503
$2MoM
Available listings
778
Property Tax and Assessment
| Year | 2025 |
|---|---|
| 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 |
|---|---|---|---|---|---|---|---|
0.23 | Single-Family Home | $4,587,500 | 09/29/25 | 5 | 5.5 | 5,091 | |
0.23 | Single-Family Home | $4,587,500 | 09/29/25 | 5 | 5.5 | 3,675 | |
0.07 | Single-Family Home | $2,180,000 | 09/29/25 | 4 | 4.5 | 4,108 | |
0.20 | Single-Family Home | $2,651,475 | 05/01/26 | 5 | 4 | 3,549 | |
0.32 | Single-Family Home | $4,210,200 | 03/09/26 | 5 | 4 | 4,390 | |
0.45 | Single-Family Home | $4,125,000 | 08/07/26 | 5 | 4.5 | 5,989 | |
0.17 | Single-Family Home | $3,200,000 | 06/02/26 | 3 | 3.5 | 2,796 | |
0.44 | Single-Family Home | $4,287,600 | 06/18/26 | 5 | 5 | 5,799 | |
0.39 | Single-Family Home | $5,850,000 | 03/09/26 | 6 | 5.5 | 4,814 | |
0.34 | Single-Family Home | $2,700,000 | 02/25/26 | 4 | 3 | 4,640 |
Nearby homes
Get a sense of prices in the area by checking nearby homes.Assigned Schools
These are the assigned schools for 427 Pine St.
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.
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Apartments for Rent
Homes for sale near 427 Pine St
Off Market Homes Near 427 Pine St
Frequently asked questions about 427 Pine St
- What is 427 Pine St estimated to be worth?Trulia's estimated value for 427 Pine St in Boulder, CO is $5,593,100.
- What is the price history for 427 Pine St?427 Pine St in Boulder, CO last sold for $3,500,000 in October 2017.
- 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 $891K. That is down $60.83K from the prior month.
- How big is the lot at 427 Pine St?The lot at 427 Pine St in Boulder, CO is about 0.16 acres (6,945 sq ft).
- Does 427 Pine St have a garage?Yes, 427 Pine St in Boulder, CO has a garage.

