Seller's Agent in 2026
Autumn White
Coldwell Banker Realty 02
(206) 851-7998
1 in this area
56 Total Sales
1625 4th St Boulder, CO 80302
University Hill Neighborhood
4
Beds
2
Baths
1,897
Sq Ft
5,227
Sq Ft Lot
Highlights
- Wood Flooring
- No HOA
- Eat-In Kitchen
- Flatirons Elementary School Rated A
- Enclosed Patio or Porch
- 5-minute walk to Eben G. Fine Park
About This Home
As of February 2026Two Mid-Century Modern Homes on One Lot near Downtown Boulder. Rarely does a property like this come to market in one of Boulder's most sought-after neighborhoods. Located near 4th & Marine, this legal non-conforming duplex features two separate mid-century modern homes on one lot, each with 2 bedrooms, 1 bathroom, built-in storage, and walls of natural light. The front house was built in 1946 and the back house was constructed in 1960. A shared courtyard connects the homes providing both covered and open patio space with opportunities for gardening, entertaining, or future additions. Inside, each home was designed with comfortable living in mind, offering smart layouts, storage solutions, and timeless mid-century character. Additional features include a shared laundry room and easy access to Boulder's best amenities. Just blocks from Downtown Boulder, Boulder Creek, and Eben G. Fine Park, the location combines convenience with a peaceful residential feel. With multiple paths forward-income property, multi-generational living, owner-occupant with rental, or full renovation and expansion-this property offers unparalleled flexibility and long-term potential in a prime Boulder location.
Last Agent to Sell the Property
Coldwell Banker Realty 02 Brokerage Phone: 2068517998 License #100074447 Listed on: 01/19/2026
Home Details
Home Type
- Single Family
Est. Annual Taxes
- $7,327
Year Built
- Built in 1960
Lot Details
- 5,227 Sq Ft Lot
- Partially Fenced Property
- Vinyl Fence
- Level Lot
Home Design
- Composition Roof
Interior Spaces
- 1-Story Property
- Whole House Fan
- Window Treatments
- Wood Flooring
Kitchen
- Eat-In Kitchen
- Microwave
- Dishwasher
- Kitchen Island
- Disposal
Bedrooms and Bathrooms
- 4 Bedrooms
- 2 Full Bathrooms
Laundry
- Laundry Room
- Dryer
- Washer
Outdoor Features
- Enclosed Patio or Porch
Schools
- Flatirons Elementary School
- Manhattan Middle School
- Boulder High School
Utilities
- Forced Air Heating System
- Baseboard Heating
- Hot Water Heating System
Community Details
- No Home Owners Association
- Flatirons Subdivision
Listing and Financial Details
- Assessor Parcel Number R0001009
Ownership History
Date
Name
Owned For
Owner Type
Purchase Details
Closed on
Dec 23, 2015
Sold by
Thrash Jane Alexander
Bought by
Thrash Brett
Purchase Details
Closed on
Jun 27, 2003
Sold by
Day Pamela Hatch
Bought by
Thrash Jane Alexander
Home Financials for this Owner
Home Financials are based on the most recent Mortgage that was taken out on this home.
Original Mortgage
$322,700
Outstanding Balance
$117,085
Interest Rate
3.75%
Mortgage Type
Purchase Money Mortgage
Estimated Equity
$1,311,306
Purchase Details
Closed on
May 19, 1988
Bought by
Thrash Brett
Purchase Details
Closed on
Sep 26, 1950
Bought by
Thrash Brett
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Home Values in the Area
Average Home Value in this Area
Purchase History
| Date | Type | Sale Price | Title Company |
|---|---|---|---|
| Interfamily Deed Transfer | -- | None Available | |
| Warranty Deed | $500,000 | First Colorado Title | |
| Deed | -- | -- | |
| Warranty Deed | -- | -- |
Source: Public Records
Mortgage History
| Date | Status | Loan Amount | Loan Type |
|---|---|---|---|
| Open | $322,700 | Purchase Money Mortgage |
Source: Public Records
Property History
| Date | Event | Price | List to Sale | Price per Sq Ft |
|---|---|---|---|---|
| 02/20/2026 02/20/26 | Sold | $1,411,000 | 0.0% | $744 / Sq Ft |
| 01/20/2026 01/20/26 | For Sale | $1,411,000 | -- | $744 / Sq Ft |
Source: IRES MLS
Tax History
| Year | Tax Paid | Tax Assessment Tax Assessment Total Assessment is a certain percentage of the fair market value that is determined by local assessors to be the total taxable value of land and additions on the property. | Land | Improvement |
|---|---|---|---|---|
| 2025 | $7,327 | $80,882 | $60,600 | $20,282 |
| 2024 | $7,327 | $80,882 | $60,600 | $20,282 |
| 2023 | $7,195 | $81,573 | $62,149 | $23,108 |
| 2022 | $6,441 | $67,749 | $51,298 | $16,451 |
| 2021 | $6,149 | $69,698 | $52,774 | $16,924 |
| 2020 | $5,881 | $67,568 | $45,689 | $21,879 |
| 2019 | $5,791 | $67,568 | $45,689 | $21,879 |
| 2018 | $5,275 | $60,840 | $30,024 | $30,816 |
| 2017 | $5,110 | $67,261 | $33,193 | $34,068 |
| 2016 | $4,464 | $51,565 | $23,800 | $27,765 |
| 2015 | $4,227 | $45,882 | $27,542 | $18,340 |
| 2014 | $3,945 | $45,882 | $27,542 | $18,340 |
Source: Public Records
Agents Affiliated with this Home
-
Autumn White
-
Jennifer Egbert
Buyer's Agent in 2026
Jennifer Egbert
milehimodern - Boulder
(303) 619-3373
3 in this area
91 Total Sales
Map
Source: IRES MLS
MLS Number: IRE1049877
APN: 1461362-00-031
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Based on information submitted to the MLS GRID. 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. Some IDX listings have been excluded from this website. Listing 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.
Information deemed reliable but not guaranteed by the MLS.
Based on information submitted to the MLS GRID
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