Built in 1905 by Scottish immigrant Alex Boom, this Old Town Longmont home carries the craftsmanship and character of its era: arched doorways, rich hardwood floors, and timeless architectural details that simply cannot be replicated today. Originally constructed as a single-family home, the property was thoughtfully converted to a duplex in 1938, offering flexible use that has stood the test of decades. Today it lives beautifully and seamlessly as a spacious single-family home with 4 bedrooms and 2 full bathrooms; a rare combination of historic soul and modern livability. The sunroom adds a bright flex space, and the large kitchen has been updated with newer appliances and fresh cabinetry. The main-floor primary bedroom offers single-level living flexibility. Major updates have already been completed, including a new roof, siding, central air, and a sewer line; there is no need to worry about replacements. The professionally landscaped yard is the perfect place to relax and visit with neighbors. An oversized two-car garage completes the package. Whether you're drawn by the history, the character, or the move-in-ready condition, 825 6th Avenue is an exceptional opportunity to own a true piece of Longmont's past. Enjoy the desirable access from the front door to Downtown's breweries, coffee shops, eateries, parks, pools, and local events. Love Where You Live
Sold for $810,000
$810,000
825 6th Ave, Longmont, CO 80501
4beds
2,614sqft
Mixed Use
Built in 1905
4,395 Square Feet Lot
$809,900 Zestimate®
$310/sqft
$2,641 Estimated rent
Home value
$809,900
$761,000 - $858,000
$2,641/mo
Zestimate® history
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Zillow last checked:
Listing updated:
Listed by:
Heather Brandt 303-489-0755,
Heather Brandt
Bought with:
Joe Osborne, 100099944
The Agency - Boulder
Source: IRES as distributed by MLS GRID,MLS#: 1057769
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 4
- Bathrooms: 2
- Full bathrooms: 2
- Main level bathrooms: 1
Primary bedroom
- Description: Hardwood
- Features: Shared Primary Bath
- Level: Main
- Area: 169 Square Feet
- Dimensions: 13 x 13
Bedroom 2
- Description: Hardwood
- Level: Upper
- Area: 169 Square Feet
- Dimensions: 13 x 13
Bedroom 3
- Description: Hardwood
- Level: Upper
- Area: 110 Square Feet
- Dimensions: 10 x 11
Bedroom 4
- Description: Hardwood
- Level: Upper
- Area: 64 Square Feet
- Dimensions: 8 x 8
Dining room
- Description: Hardwood
- Level: Main
- Area: 169 Square Feet
- Dimensions: 13 x 13
Family room
- Description: Hardwood
- Level: Upper
- Area: 182 Square Feet
- Dimensions: 13 x 14
Kitchen
- Description: Tile
- Level: Main
- Area: 140 Square Feet
- Dimensions: 10 x 14
Laundry
- Level: Main
Living room
- Description: Hardwood
- Level: Main
- Area: 234 Square Feet
- Dimensions: 13 x 18
Recreation room
- Level: Basement
Study
- Description: Hardwood
- Level: Main
- Area: 105 Square Feet
- Dimensions: 7 x 15
Heating
- Forced Air
Cooling
- Central Air
Appliances
- Included: Electric Range, Dishwasher, Refrigerator, Washer, Dryer, Microwave
Features
- Eat-in Kitchen, Separate Dining Room, Pantry, Sun Room
- Windows: Window Coverings, Wood Frames
- Basement: Partial,Partially Finished
Interior area
- Total structure area: 2,192
- Total interior livable area: 2,614 sqft
- Finished area above ground: 2,192
Property
Parking
- Total spaces: 2
- Parking features: Detached, Oversized
- Garage spaces: 2
- Details: Detached
Features
- Levels: Two
- Stories: 2
- Patio & porch: Patio
- Exterior features: Sprinkler System
Lot
- Size: 4,395 Square Feet
- Features: Corner Lot, Paved
Details
- Parcel number: R0045440
- Zoning: Res
- Special conditions: Private Owner
Construction
Type & style
- Home type: SingleFamily
- Property subtype: Mixed Use
Materials
- Frame
- Roof: Composition
Condition
- New construction: No
- Year built: 1905
Utilities & green energy
- Electric: City of Longmont
- Gas: Xcel
- Sewer: Public Sewer
- Water: City
- Utilities for property: Natural Gas Available, Electricity Available, Cable Available, High Speed Avail
Community & HOA
Community
- Subdivision: Old Town
HOA
- Has HOA: No
Location
- Region: Longmont
Financial & listing details
- Price per square foot: $310/sqft
- Tax assessed value: $803,000
- Annual tax amount: $5,269
- Date on market: 4/29/2026
- Listing terms: Cash,Conventional
- Exclusions: Owner's personal property, Staging items
- Electric utility on property: Yes
- Road surface type: Asphalt
Price history
| Date | Event | Price |
|---|---|---|
| 6/26/2026 | Sold | $810,000-4.7%$310/sqft |
Source:  IRES as distributed by MLS GRID #1057769 Report a problem | ||
| 5/27/2026 | Pending sale | $850,000$325/sqft |
Source:  REcolorado as distributed by MLS GRID #3826202 Report a problem | ||
| 5/6/2026 | Listed for sale | $850,000$325/sqft |
Source: REcolorado as distributed by MLS GRID #IR1057769 Report a problem | ||
| 5/3/2026 | Pending sale | $850,000$325/sqft |
Source: REcolorado as distributed by MLS GRID #IR1057769 Report a problem | ||
| 5/2/2026 | Listed for sale | $850,000+10.5%$325/sqft |
Source: IRES as distributed by MLS GRID #1057769 Report a problem | ||
| 4/5/2021 | Sold | $769,000-6.8%$294/sqft |
Source: Public Record Report a problem | ||
| 1/1/2021 | Listing removed | $825,000$316/sqft |
Source:  IRES as distributed by MLS GRID #925152 Report a problem | ||
| 10/1/2020 | Listed for sale | $825,000+230%$316/sqft |
Source: Niwot Real Estate #925152 Report a problem | ||
| 2/21/2001 | Sold | $250,000$96/sqft |
Source: Public Record Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $5,248 +1.4% | $50,188 -15.5% |
| 2024 | $5,177 +24.6% | $59,426 +0.5% |
| 2023 | $4,155 +8.1% | $59,119 +40.8% |
| 2022 | $3,843 +11.1% | $41,983 +6.4% |
| 2021 | $3,461 | $39,447 +10.7% |
| 2020 | $3,461 +24.2% | $35,628 |
| 2019 | $2,786 | $35,628 +21.5% |
| 2018 | $2,786 | $29,326 -9.5% |
| 2017 | $2,786 +1.9% | $32,421 +13.3% |
| 2016 | $2,735 +4.9% | $28,608 +9.1% |
| 2015 | $2,606 +6.4% | $26,212 |
| 2014 | $2,448 +7.3% | $26,212 |
| 2013 | $2,281 +6.8% | $26,212 +6.6% |
| 2012 | $2,136 0% | $24,596 |
| 2011 | $2,138 +1.8% | -- |
| 2010 | $2,099 -11.4% | $24,830 |
| 2009 | $2,369 +12.1% | $24,830 -23.4% |
| 2008 | $2,112 +12.6% | $32,430 |
| 2007 | $1,875 -1.8% | $32,430 +13.1% |
| 2006 | $1,909 +21.8% | $28,680 |
| 2005 | $1,568 +1.2% | $28,680 +21% |
| 2004 | $1,550 +3% | $23,710 |
| 2003 | $1,504 +10.5% | $23,710 +19.4% |
| 2002 | $1,361 | $19,860 -90.8% |
| 2001 | -- | $217,000 |
Find assessor info on the county website
Neighborhood: Sunset
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Nearby schools
GreatSchools rating
- 9/10Central Elementary SchoolGrades: PK-5Distance: 0.2 mi
- 7/10Westview Middle SchoolGrades: 6-8Distance: 2.9 mi
- 7/10Longmont High SchoolGrades: 9-12Distance: 0.8 mi
Schools provided by the listing agent
- Elementary: Central
- Middle: Westview
- High: Longmont
Source: IRES as distributed by MLS GRID. This data may not be complete. We recommend contacting the local school district to confirm school assignments for this home.
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Estimated market value
$809,900
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Estimated market value
$809,900
- Colorado
- Boulder County
- Longmont
- 80501
- Sunset
- 825 6th Ave
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