Timeless Elegance in the Heart of Old Town, one of Longmont's most distinguished historic residences, The Emmons-Adler House. A rare opportunity in turn-of-the-century architecture, bold, symmetrical, and commanding on its half-acre lot along coveted 3rd Avenue. The crown jewel of the exterior is the sweeping wrap-around porch, perfectly proportioned to match the home's stately presence. Whether you're sipping morning coffee as the neighborhood stirs to life or hosting friends on a warm Colorado evening, this porch is the kind that makes passersby stop and stare. It is quintessential Old Town living at its finest. Inside, over 5,000 square feet of thoughtfully arranged living space unfolds across three generous bedrooms, three bathrooms, and a spectacular bonus third-floor great room. Throughout the home, soaring leaded-glass windows cast ever-changing light across richly appointed rooms, their artistry a daily reminder of the era's uncompromising craftsmanship. Deep woodwork, gracious proportions, and the quiet confidence of a home that has stood beautifully for over a century complete an interior that no new construction can replicate. The historic designation confers a deep sense of pride of ownership and places this property among a rare and celebrated collection of Longmont's most treasured homes. The grounds are nothing short of exceptional. The rare half-acre lot is lushly private and serene - a true urban sanctuary in the heart of Old Town. A charming garden house anchors the backyard, perfect as a studio, workshop, or haven for the dedicated gardener. The detached two-car garage provides ample storage and parking, while the drive-through driveway adds a gracious, practical elegance. The private garden area is a hidden gem. Mature trees and beautiful outdoor spaces complete a setting that is as livable as the home itself. Stroll to restaurants, coffee houses, breweries, shops, local events, and all Downtown has to offer. Love Where You Live
Accepting backups
$1,600,000
858 3rd Ave, Longmont, CO 80501
3beds
5,371sqft
Single Family Residence
Built in 1903
0.5 Acres Lot
$-- Zestimate®
$298/sqft
$-- HOA
What's special
- 69 days |
- 369 |
- 13 |
Zillow last checked:
Listing updated:
Listed by:
Heather Brandt 303-489-0755,
Heather Brandt
Source: IRES as distributed by MLS GRID,MLS#: 1057599
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 3
- Bathrooms: 3
- Full bathrooms: 1
- 3/4 bathrooms: 1
- 1/2 bathrooms: 1
- Main level bathrooms: 1
Primary bedroom
- Description: Carpet
- Features: 5 Piece Primary Bath
- Level: Upper
- Area: 154 Square Feet
- Dimensions: 11 x 14
Bedroom 2
- Description: Carpet
- Level: Upper
- Area: 180 Square Feet
- Dimensions: 12 x 15
Bedroom 3
- Description: Carpet
- Level: Upper
- Area: 144 Square Feet
- Dimensions: 12 x 12
Dining room
- Description: Hardwood
- Level: Main
- Area: 180 Square Feet
- Dimensions: 15 x 12
Family room
- Description: Hardwood
- Level: Main
- Area: 294 Square Feet
- Dimensions: 21 x 14
Great room
- Description: Carpet
- Level: Additional
- Area: 945 Square Feet
- Dimensions: 27 x 35
Kitchen
- Description: Hardwood
- Level: Main
- Area: 168 Square Feet
- Dimensions: 12 x 14
Laundry
- Description: Linoleum
- Level: Basement
- Area: 126 Square Feet
- Dimensions: 9 x 14
Living room
- Description: Hardwood
- Level: Main
- Area: 208 Square Feet
- Dimensions: 16 x 13
Recreation room
- Description: Carpet
- Level: Basement
- Area: 264 Square Feet
- Dimensions: 22 x 12
Heating
- Hot Water
Appliances
- Included: Gas Range, Double Oven, Dishwasher, Refrigerator, Microwave
Features
- Eat-in Kitchen, Separate Dining Room, Natural Woodwork, Walk-In Closet(s), Steam Shower, High Ceilings, Crown Molding
- Flooring: Wood
- Doors: French Doors
- Windows: Window Coverings, Wood Frames, Bay or Bow Window
- Basement: Partially Finished,Walk-Out Access
- Has fireplace: Yes
- Fireplace features: Family Room
Interior area
- Total structure area: 3,351
- Total interior livable area: 5,371 sqft
- Finished area above ground: 3,351
Video & virtual tour
Property
Parking
- Total spaces: 2
- Parking features: Garage Door Opener, Detached, Oversized
- Garage spaces: 2
- Details: Detached
Features
- Levels: Three Or More
- Stories: 3
- Patio & porch: Deck
- Exterior features: Sprinkler System, Balcony
- Fencing: Partial
- Has view: Yes
- View description: Hills
Lot
- Size: 0.5 Acres
- Features: Corner Lot, Deciduous Trees, Historic District, Paved
Details
- Additional structures: Carriage House
- Parcel number: R0039924
- Zoning: Res
- Special conditions: Private Owner
Construction
Type & style
- Home type: SingleFamily
- Property subtype: Single Family Residence
Materials
- Brick, Block
- Roof: Tile
Condition
- New construction: No
- Year built: 1903
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: $298/sqft
- Tax assessed value: $1,360,400
- Annual tax amount: $8,270
- Date on market: 4/28/2026
- Listing terms: Cash,Conventional
- Exclusions: Staging items
- Electric utility on property: Yes
- Road surface type: Asphalt
Estimated market value
Not available
Estimated sales range
Not available
Not available
Price history
| Date | Event | Price |
|---|---|---|
| 6/1/2026 | Pending sale | $1,600,000$298/sqft |
Source:  REcolorado as distributed by MLS GRID #5164920 Report a problem | ||
| 5/1/2026 | Listed for sale | $1,600,000+461.4%$298/sqft |
Source:  IRES as distributed by MLS GRID #1057599 Report a problem | ||
| 10/22/1993 | Sold | $285,000$53/sqft |
Source: Public Record Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $7,409 +1.4% | $85,025 -3.2% |
| 2024 | $7,308 +15.1% | $87,838 -1% |
| 2023 | $6,348 -1.3% | $88,689 +24.7% |
| 2022 | $6,430 +24% | $71,099 -2.8% |
| 2021 | $5,188 | $73,144 +20.8% |
| 2020 | $5,188 +35.1% | $60,554 |
| 2019 | $3,840 | $60,554 +27.1% |
| 2018 | $3,840 | $47,628 -9.5% |
| 2017 | $3,840 -4.8% | $52,655 +5% |
| 2016 | $4,033 +4.9% | $50,148 +6.4% |
| 2015 | $3,843 +5% | $47,139 |
| 2014 | $3,659 +5.2% | $47,139 |
| 2013 | $3,479 -12.2% | $47,139 +3.4% |
| 2012 | $3,962 -1% | $45,611 |
| 2011 | $4,001 +1.8% | -- |
| 2010 | $3,929 +23.2% | $46,480 |
| 2009 | $3,188 +12.1% | $46,480 -12% |
| 2008 | $2,843 +14.3% | $52,790 |
| 2007 | $2,489 -20.8% | $52,790 +11.8% |
| 2006 | $3,142 +1.4% | $47,210 |
| 2005 | $3,099 +1.2% | $47,210 +0.7% |
| 2004 | $3,063 +0.3% | $46,860 |
| 2003 | $3,055 +10.5% | $46,860 +16.2% |
| 2002 | $2,763 | $40,310 -90.9% |
| 2001 | -- | $440,600 |
Find assessor info on the county website
Monthly payment
Est. payment$--/mo
Payment breakdown
Explore the cost of this home by adjusting the details. Changes won't be saved.All calculations are estimates and provided by Zillow, Inc. for informational purposes only. Actual amounts may vary.
HOA fees may include property taxes on listings classified as Co-Ops. Contact the listing agent and/or owner for fee details.
Mortgage interest rates are dependent on a number of factors, including credit score, down payment, and repayment length. Interest rate data provided by Zillow Group Marketplace, Inc. as of 1/1/1970 from various mortgage lenders with which we have lead or other similar arrangements; the Estimated Payment is an average of those rates.
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Climate risks
Neighborhood: Sunset
Nearby schools
GreatSchools rating
- 9/10Central Elementary SchoolGrades: PK-5Distance: 0.2 mi
- 7/10Westview Middle SchoolGrades: 6-8Distance: 3.1 mi
- 7/10Longmont High SchoolGrades: 9-12Distance: 1.1 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.
A local agent can set up tours, give advice and negotiate with sellers.
- Colorado
- Boulder County
- Longmont
- 80501
- Sunset
- 858 3rd Ave
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