858 3rd Ave, Longmont, CO 80501
FOR SALE
3D VIEW
0.5 ACRES

858 3rd Ave
Longmont, CO 80501

Sunset
  • 3 Beds
  • 2.5 Baths
  • 5,371 sqft (on 0.50 acres)

$1,600,000

Est. Mortgage $8,622/mo*

$1,600,000

Est. Mortgage $8,622/mo*
3 Beds
2.5 Baths
5,371 sqft
(on 0.50 acres)

Local Information

Map showing home location
© Google
-- mins to
Commute Destination

Description

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

Home Highlights

Parking
Garage
Outdoor
Deck
A/C
Heating only
HOA
None
Price/Sqft
$298
Listed
12 days ago

Home Details for 858 3rd Ave

Interior Features

Interior Details
Basement: Partially Finished,Walk-Out AccessNumber of Rooms: 10Types of Rooms: Primary Bedroom, Bedroom 2, Bedroom 3, Dining Room, Family Room, Great Room, Kitchen, Laundry, Living Room, Recreation Room
Beds & Baths
Number of Bedrooms: 3Number of Bathrooms: 3Number of Bathrooms (full): 1Number of Bathrooms (three quarters): 1Number of Bathrooms (half): 1Number of Bathrooms (main level): 1
Dimensions and Layout
Living Area: 5371 Square Feet
Appliances & Utilities
Utilities: Natural Gas Available, Electricity Available, Cable Available, High Speed AvailAppliances: Gas Range, Double Oven, Dishwasher, Refrigerator, MicrowaveDishwasherMicrowaveRefrigerator
Heating & Cooling
Heating: Hot WaterHas HeatingHeating Fuel: Hot Water
Fireplace & Spa
Fireplace: Family RoomHas a Fireplace
Gas & Electric
Electric: City of LongmontGas: XcelHas Electric on Property
Windows, Doors, Floors & Walls
Window: Window Coverings, Wood Frames, Bay or Bow WindowDoor: French DoorsFlooring: Wood
Levels, Entrance, & Accessibility
Stories: 3Levels: Three Or MoreFloors: Wood
View
Has a ViewView: Hills

Exterior Features

Exterior Home Features
Roof: TilePatio / Porch: DeckFencing: PartialOther Structures: Carriage HouseExterior: Sprinkler System, BalconySprinkler System
Parking & Garage
Number of Garage Spaces: 2Number of Covered Spaces: 2Other Parking: DetachedNo CarportHas a GarageNo Attached GarageParking Spaces: 2Parking: Garage Door Opener,Detached,Oversized
Frontage
Road Frontage: City StreetRoad Surface Type: AsphaltNot on Waterfront
Water & Sewer
Sewer: Public Sewer
Farm & Range
Does Not Include Irrigation Water Rights
Finished Area
Finished Area (above surface): 3351 Square FeetFinished Area (below surface): 2020 Square Feet

Days on Market

Days on Market: 12

Property Information

Year Built
Year Built: 1903
Property Type / Style
Property Type: ResidentialProperty Subtype: Single Family Residence
Building
Construction Materials: Brick, BlockNot a New ConstructionNot Attached Property
Property Information
Usage of Home: Single FamilyNot Included in Sale: Staging itemsParcel Number: R0039924

Price & Status

Price
List Price: $1,600,000Price Per Sqft: $298

Active Status

MLS Status: Active

Location

Direction & Address
City: LongmontCommunity: Old Town
School Information
Elementary School: CentralJr High / Middle School: WestviewHigh School: LongmontHigh School District: ST Vrain Dist RE 1J

Agent Information

Listing Agent
Listing ID: 1057599

Building

Building Area
Building Area: 5371 Square Feet

HOA

No HOA

Lot Information

Lot Area: 0.50 acres

Listing Info

Special Conditions: Private Owner

Offer

Listing Terms: Cash, Conventional

Miscellaneous

BasementMls Number: 1057599Attribution Contact: 303-489-0755Above Grade Unfinished Area: 3351Activation Date: Fri May 01 2026Showing Service Name: ShowingTime
Last check for updates: about 4 hours ago
Listing courtesy of Heather Brandt, (303) 489-0755
Heather Brandt

Price History for 858 3rd Ave

DatePriceEventSource
05/01/2026$1,600,000Listed For SaleIRES as distributed by MLS GRID #1057599
10/22/1993$285,000Sold
N/A

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Property Tax and Assessment

Year2025
Tax$7,409
Assessment$1,360,400
Home facts updated by county records

Comparable Sales for 858 3rd Ave

Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
0.03
Single-Family Home
$1,245,000
05/27/25
3
1.5
2,790
0.21
Single-Family Home
$730,000
12/15/25
4
3
4,014
0.21
Single-Family Home
$950,000
08/22/25
4
3
5,112
0.27
Single-Family Home
$418,500
01/14/26
4
2
1,836
0.21
Single-Family Home
$569,000
09/10/25
3
2
3,480
0.21
Single-Family Home
$650,000
10/03/25
4
2.5
3,617
0.16
Single-Family Home
$1,225,000
05/28/25
4
2
5,016

Assigned Schools

These are the assigned schools for 858 3rd Ave.
The GreatSchools Rating compares schools on a variety of school quality indicators including test scores, college readiness, equity and more. Learn more.

Neighborhood Overview

Neighborhood stats provided by third party data sources.

What Locals Say about Sunset

At least 24 Trulia users voted on each feature.
  • 94 % Say yards are well-kept

  • 94 % Say there are sidewalks

  • 93 % Say parking is easy

  • 90 % Say it's dog friendly

  • 88 % Say there's holiday spirit

  • 78 % Say car is needed

  • 72 % Say people would walk alone at night

  • 69 % Say streets are well-lit

  • 67 % Say it's walkable to restaurants

  • 66 % Say it's quiet

  • 65 % Say neighbors are friendly

  • 55 % Say kids play outside

  • 42 % Say there are community events

  • 39 % Say there's wildlife

  • 35 % Say it's walkable to grocery stores

  • 25 % Say they plan to stay for at least 5 years

Learn more about our methodology.
  • Kevin and family
    "Great place to live! No cookie cutters here:). Close to everything you could possibly think off! Did friendly, kid friendly, people take care of yards and homes. Best neighborhood in Longmont"
  • janett c.
    "I lived in this neighborhood for 6 years and really miss it.I love hearing the music from Roosevelt park in the summer and the closeness of downtown"
  • Thompsonsk
    "Literally steps from all the events at Roosevelt Park and Downtown. City bus and regional bus are a block away. Enjoy the annual block parties!"
  • Susie0524
    "Longmont has a big arts & music community with several free community events throughout the year. It tries to be a very inclusive city and celebrates diversity. "
  • Boulder S.
    "Longmont is a community settled by farmers who came for the ample sunshine and the soil. There is an apartment building called the Cannery. They canned beets there. Longmont is blessed with an art community, too. City leaders strive to keep the downtown vibrant. Longmont is a community poised on a great future. "
  • Dena S.
    "This is a quiet street with beautiful mature trees in a well maintained old town neighborhood. Nearby parks, golfing, swimming and sandwich shops are all within walking distance. This is a wonderful neighborhood. "

LGBTQ Local Legal Protections

Heather Brandt, Heather Brandt
Agent Phone: (303) 489-0755
Based on information submitted to the MLS GRID as of 2026-05-09 22:08:17 PDT. 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. Click here for more information
858 3rd Ave, Longmont, CO 80501 is a 3 bedroom, 3 bathroom, 5,371 sqft single-family home built in 1903. 858 3rd Ave is located in Sunset, Longmont. This property is currently available for sale and was listed by IRES as distributed by MLS GRID on Apr 28, 2026. The MLS # for this home is MLS# 1057599.