Property Report for 4435 Mast Rd, Boulder, CO 80301

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4435 Mast Rd, Boulder, CO 80301
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Property Details
  • Property Address 4435 Mast Rd, Boulder, CO 80301
  • County Boulder
  • Parcel ID 1463-14-2-14-002
  • Legal description LOT 2 BLK 12 TWIN LAKES 2 REPLAT OF BLKS 10 11 & 12
  • School district Boulder Valley School District Re-2
  • Acreage 0.15
  • Property class Single Family Residence
  • Zoning Subscribe
  • Square footage 844
  • Year built 1975
  • Bedrooms 4
  • Bathrooms 2

About the Property

4435 Mast Rd is a single family residence in the city of Boulder, CO 80301. Located in the Boulder Valley School District Re-2, which resides in Boulder County, CO and built in 1975. This Single Family Residence sits on a 6,360 sq ft lot and features 4 bedrooms, 2 bathrooms and 844 sq ft of living space.

The most recent property tax for 4435 Mast Rd was $3,789 with an estimated market value range of $688,318 to $760,773. This property was last sold on March 31, 2016 for $450,000.

Property Info

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Flood

Ownership

Land
  • Acres 0.15
  • Square Feet 6,360
Building
  • Units N/A
  • Year Built 1975
  • Effective Year Built N/A
  • Stories 1
  • # Fireplaces N/A
  • Garage/Carport 252 sq.ft.
Utilities
  • Cooling Central
  • Heating Forced Air
Interior
  • Square Footage
  • Living Area 844
  • Total Rooms 7
  • Bedrooms 4
  • Total Bathrooms 2
  • Full Bathrooms 2
Your Property Report will also include the following information:

Boulder Residential Market Stats

Median Sale Price $1,096,011 -14.6% YoY
Median Price/sq ft. $554
Boulder County Median Sale Price $1,096,011 -14.6% YoY

See more Real Estate Trends for Boulder including home values, types of properties sold and transaction volumes.

Taxes and Assessments for 4435 Mast Rd, Boulder

Tax Year Taxes Tax Assesed Value Exemptions
2024 $3,789 (+1.7%) $40,830 (-8.3%)

2023 $3,726 (+15.3%) $44,515 (+34.9%)

2022 $3,232 (+4.9%) $32,991 (-2.8%)

2021

2020

2019

2018

Access Full Tax & Assessment History for 4435 Mast Rd, Boulder. View Tax Information

Sales History for 4435 Mast Rd, Boulder

The most recent sale on 4435 Mast Rd took place on Mar 30, 2016 and recorded on Mar 31, 2016 for $450,000. Sign up for full access to the complete sales history including potential flips, distressed sales and buyer and seller data.
Sale Date Recorded Date Buyer(s) Seller(s) Price Document ID

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Recently Sold Comparables
These are nearby recently sold properties that are similar to this property, base on available data.
Address Distance SqFt Sale Date Price $/SqFt
1615 KALMIA AVE 4.1 mi 992 08/18/2025 $1,295,000 $1,305
1322 WICKLOW ST 4.57 mi 960 08/13/2025 $875,000 $911
3824 NORTHBROOK DR 3.11 mi 976 08/04/2025 $600,000 $615
Active Mortgages and Equity Analysis
Date Recorded Position Original Amount Amortized Balance Loan Type Interest Rate Lender Lender Type

  • Total Estimated Debt:

  • Estimated Value from ATTOM AVM:

  • Available Equity:

  • Loan To Value Ratio:

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Total Estimated Debt

  • Total Estimated Debt
  • Available Equity
Access the complete Mortgage and Equity Analysis for 4435 Mast Rd, Boulder. View Mortgage and Equity
Automated Valuation Models (AVM)
Our Property Reports contain multiple Automated Valuation Models showing low, median, and high values along with confidence scores.
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Market Value Estimate
Aug 19, 2025 Confidence Score: 95%
Low
Value
High
Rental Value Estimate ATTOM
Aug 25, 2025
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Various data sets have been provided by a third party or government source and are subject to change and possible errors. Depending on location and source, data may be missing or not available. Information is deemed reliable but not guaranteed to be accurate, up-to-date, or complete. Buyers, investors, and others are responsible for verifying the accuracy of all information.