Sold
Last Sold Price
4 beds1,660 sqft
4435 Mast Rd, Boulder, CO 80301
Single FamilyProperty Type
0.15 acresLot Size
1975Year Built
$271/sq ftPrice per sq ft
1 carParking Spaces

Description

Incredible Value In Twin Lakes Subdivision. 4 Bedrooms, 2 Baths, Huge Yard, Corner Lot, Fantastic Location, NO HOA! Central Location, Close to Parks, Trails, & Shopping.Incredible Value In Twin Lakes Subdivision. 4 Bedrooms, 2 Baths, Huge Yard, Corner Lot, Fantastic Location, NO HOA! Central Location, Close to Parks, Trails, & Shopping.
  • Listed by: Kayla Garthwaite 720.352.8844 kayla@thegarthwaitegroup.com • Goodacre & Company
  • Listed by: Peter Garthwaite 303.931.2777 peter@thegarthwaitegroup.com • The Garthwaite Group LLC
Listing closed: 04/04/2016 12:00 AM • Source: IRES as distributed by MLS GRID, MLS#: 782595

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Recent comparable sales

Median sold price

$720,000

Avg days on market

73

Sale-to-list ratio

96.2%

Boulder, CO

9 comparable properties found

a backyard of a house with table and chairs
1/51
1

$720,000

Sold 05/27/26

4
Bedrooms
1,260
Square Feet
0.11
Acres
$710,000 | 4444 Mast Road, Boulder, CO 80301
1/36
2

$710,000

Sold 08/07/26

3
Bedrooms
1,688
Square Feet
0.2
Acres
a view of backyard with green space
1/37
3

$850,000

Sold 08/07/25

4
Bedrooms
2,017
Square Feet
0.29
Acres
$490,000 | 4268 Corriente Place, Boulder, CO 80301
1/36
4

$490,000

Sold 07/17/26

4
Bedrooms
1,524
Square Feet
0.03
Acres
$765,000 | 4423 Alberta Court, Boulder, CO 80301
1/39
5

$765,000

Sold 07/07/26

4
Bedrooms
1,700
Square Feet
0.27
Acres
a living room with furniture and a fireplace
1/26
6

$529,000

Sold 05/19/25

3
Bedrooms
1,898
Square Feet
Unavailable
Acres
7

$400,000

Sold 05/11/26

3
Bedrooms
2
Bathrooms
1,876
Square Feet
0.74
Acres
$729,900 | 5419 Crestone Circle, Boulder, CO 80301
1/25
8

$729,900

Sold 03/03/26

4
Bedrooms
2,414
Square Feet
0.31
Acres
$995,000 | 6954 Wapiti Court, Boulder, CO 80301
1/41
9

$995,000

Sold 10/17/25

4
Bedrooms
2,216
Square Feet
0.29
Acres

Location

Listing Courtesy of Goodacre & Company, Kayla Garthwaite; The Garthwaite Group LLC, Peter Garthwaite
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Property Information for 4435 Mast Road

Property Details
  • Taxes: $1,268 / year
  • MLS Type: Residential / Single Family Residence
  • Locale: Boulder
Building Information
  • Year Built: 1975
  • Lot Size: 0.15 AC / 6,534 SF
Summary
Location and General Information
  • Road Access 2: City Street
  • Latitude: 40.06
  • Longitude: -105.20
Parking
  • Garage SqFt: 252
  • Total Parking: 1.00
Taxes and HOA Information
  • Has HOA: No
  • HOA Fee: $.00
  • Legal Description: LOT 2 BLOCK 12 TWIN LAKES 2 REPLAT OF BLKS 10,11 & 12
  • HOA2 Fee Amount: $0
  • Tax Year: 2014
  • HOA Transfer Fee: No
  • HOA 2 Transfer Fee: No
  • Has Association Fee: No
  • Has Association 2 Fee: No
  • Has Association Reserve: No
  • Has Association 2 Reserve: No
  • Tax Annual Amount: $1,268
  • Parcel Number: R0038552
Property
Lot Information
  • Lot Improvements: Cul-De-Sac, Corner Lot, Deciduous Trees, Level, House Faces East, Paved, Sidewalks
  • Lot Size Area: 6,534.00
  • Has Irrigation Water Rights: No
  • Has Improvements: No
Property and Assessments
  • Total Finished Area Source: Assessor
  • Living SqFt: 1660
  • Above Grade Finished Area Source: 1660
  • Total Finished Area: 1660
  • Are Ditches Active: No
  • New Construction YN: No
  • Levels: Bi-Level
Utilities
  • Electric: XCEL Energy
  • Sewer: Public Sewer
  • Green Energy Efficient: Windows, Doors
Interior and Exterior Features
Exterior Features
  • Construction Materials: Frame, Composition
  • Flooring: Wood
Interior Features
  • Interior Features: Separate Dining Room, Open Floorplan, Washer/Dryer Hookup, Skylights, Shared Primary Bath
  • Laundry Features: Electric Range, Dishwasher, Refrigerator, Washer, Dryer, Disposal
  • Window Features: Skylight(s), Window Coverings
  • All Bedrooms Conform: No
  • Full Bathrooms: 2
  • Half Bathrooms: 0
  • Rough-in Bathrooms: 0
  • Three Quarters Bathrooms: 0
  • Baths Full Additional: 0
  • Baths Full Basement: 0
  • Baths Full Upper: 0
  • Baths Full Main: 1
  • Baths Full Lower: 1
  • Baths Half Additional: 0
  • Baths Half Basement: 0
  • Baths Half Upper: 0
  • Baths Half Main: 0
  • Baths Half Lower: 0
  • Baths Three Quarters Additional: 0
  • Baths Three Quarters Basement: 0
  • Baths Three Quarters Lower: 0
  • Baths Three Quarters Upper: 0
  • Baths Three Quarters Main: 0
Room Information
Room 1
  • RoomDescription: Carpet
  • RoomLength: 9.0
  • RoomLevel: Main
  • RoomType: Bedroom 2
  • RoomWidth: 12.0
Room 2
  • RoomDescription: Carpet
  • RoomLength: 11.0
  • RoomLevel: Lower
  • RoomType: Bedroom 3
  • RoomWidth: 13.0
Room 3
  • RoomDescription: Carpet
  • RoomLength: 9.0
  • RoomLevel: Lower
  • RoomType: Bedroom 4
  • RoomWidth: 12.0
Room 4
  • RoomDescription: Wood
  • RoomLength: 9.0
  • RoomLevel: Main
  • RoomType: Dining Room
  • RoomWidth: 11.0
Room 5
  • RoomDescription: Carpet
  • RoomLength: 11.0
  • RoomLevel: Lower
  • RoomType: Family Room
  • RoomWidth: 22.0
Room 6
  • RoomDescription: Vinyl
  • RoomLength: 11.0
  • RoomLevel: Main
  • RoomType: Kitchen
  • RoomWidth: 9.0
Room 7
  • RoomDescription: Other
  • RoomLength: 5.0
  • RoomLevel: Lower
  • RoomType: Laundry
  • RoomWidth: 7.0
Room 8
  • RoomDescription: Wood
  • RoomLength: 13.0
  • RoomLevel: Main
  • RoomType: Living Room
  • RoomWidth: 14.0
Room 9
  • RoomDescription: Wood
  • RoomLength: 9.0
  • RoomLevel: Main
  • RoomType: Primary Bedroom
  • RoomWidth: 13.0
  • Room Features: Shared Primary Bath
Rental
Rental Information
  • Horse YN: No
  • Occupant Type: Vacant

Property History for 4435 Mast Road

DateEvent & SourcePriceAppreciation
Mar 30, 2016

Sold (Public Record)

Public Record #568089224

$450,000

+24.1% / yr

Mar 18, 2015

Sold (Public Record)

Public Record #490758996

$360,000
DateEvent & SourcePrice
03/30/2016

Sold (Public Record)

Public Record #568089224

$450,000

+24.1% / yr

03/18/2015

Sold (Public Record)

Public Record #490758996

$360,000

For completeness, we often displays two records for one sale: the MLS record and the public record.

Public Records for 4435 Mast Road

Taxable ValueLand$15,071Additions$25,860Total$40,931
Tax Record2025$4,205 ($350 / month)
Home Facts
Beds4Baths2Total Finished SqFt2,476 SqFtAbove Grade Finished SqFt1,660 SqFtFinished Basement SqFt816 SqFtLot Size6,347 SqFtStyleSingle Family ResidenceYear Built1975Year Renovated1975ZoningSRCountyBOULDERAPNR0038552

Schools near 4435 Mast Road

This home is within Boulder Valley Re 2 School District.
Rating
School
Type
Grades
Distance
Public - PK to 5
Public - 6 to 8
Public - 9 to 12
Public - 9 to 12
Rating
School
Distance
Heatherwood Elementary School
PublicPK to 5

Nevin Platt Middle School
Public6 to 8

Fairview High School
Public9 to 12

Boulder High School
Public9 to 12

School ratings and boundaries are provided by GreatSchools.org and Pitney Bowes. This information should only be used as a reference. Proximity or boundaries shown here are not a guarantee of enrollment. Please reach out to schools directly to verify all information and enrollment eligibility.

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Nearby home values

AddressSold priceBedsBathsSqftLot (Sqft)
This home: 4435 Mast Road, Boulder, CO 80301
$450,000
4
1,660
6,534
$142,000
3
2,028
$795,000
3
1,743
6,534
$525,000
4
2,016
7,118
$600,000
3
1,686
4,791
4
1.75
1,648
4,706

No guarantee, warranty or representation of any kind is made regarding the completeness or accuracy of any information, descriptions or measurements (including square footage measurements and property condition), such should be independently verified through appropriate means, including, but not limited to, in person inspection and public records, and Compass International Holdings, its subsidiaries, affiliates and independently owned and operated franchisees, and their affiliated agents and associated third parties expressly disclaim any liability in connection therewith. Photos may be virtually staged or digitally enhanced and may not reflect actual property conditions. Offers of compensation are subject to change at the seller's discretion. No financial or legal advice provided. Equal Housing Opportunity. Subject to change at any time. Compass, Inc., its subsidiaries, affiliates and their agents and associated third parties make no guarantee, warranty or representation regarding the accuracy of any waterfront feature, water view or waterfront view.

Listing Courtesy of Goodacre & Company, Kayla Garthwaite; The Garthwaite Group LLC, Peter Garthwaite

Based on information submitted to the MLS GRID as of 10/20/2025 06:38 PM. All data is obtained from various sources and may not have been verified by broker or MLS GRID. Supplied Open House Information is subject to change without notice. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information. Properties displayed may be listed or sold by various participants in the MLS. IDX information is provided exclusively for consumers’ personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. The data is deemed reliable but is not guaranteed by MLS GRID. Use of the MLS GRID data may be subject to an end user license agreement prescribed by the applicable MLS of the Member Participant, if any, and as amended from time to time.