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858 3rd AvenueLongmont, CO 80501

For Sale

$1,600,000

Smart Buyer Rebate $16,000

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

Listed by Heather Brandt

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License #005058

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Heather Brandt

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303-489-0755

Last updated May 01, 2026

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Source: REcolorado #5164920

Listing Facts

  • TypeSingle-family
  • NeighborhoodWest Side Historic District
  • Bedrooms3
  • Bathrooms3
  • Days on Prevu1
  • Taxes$8,270/year
  • Size4,055 sqft
  • Price per sqft$395

Amenities

  • Dishwasher
  • Private Outdoor Space
  • Parking

Location

Mortgage Calculator

Listing History

05/01/2026
Listed by Heather Brandt
$1,600,000

Property Details for 858 3rd Avenue

Exterior

Construction

  • Roof: Spanish Tile
  • Structure Type: House
  • Window Features: Bay Window(s), Window Coverings
  • Year Built: 1903
  • Construction Materials: Block, Brick
  • Exterior Features: Balcony, Private Yard

Features

  • Direction Faces: South
  • Fencing: Partial
  • Patio And Porch Features: Covered, Deck, Front Porch, Wrap Around
  • Road Frontage Type: Public
  • View: Mountain(s)

Measurements

  • Building Area Total: 5,371
  • Lot Features: Corner Lot, Historical District, Sprinklers In Front, Sprinklers In Rear
  • Lot Size Acres: 0.50
  • Lot Size Area: 21,636
  • Lot Size Square Feet: 21,636
  • Lot Size Units: Square Feet

Financial

Taxes

  • Parcel Number: R0039924
  • Tax Annual Amount: $8,270.00
  • Tax Year: 2025

Interior

Features

  • Appliances: Dishwasher, Double Oven, Microwave, Oven, Range, Refrigerator
  • Fireplace Features: Family Room
  • Fireplaces Total: 1
  • Flooring: Carpet, Linoleum, Tile, Wood
  • Interior Features: Breakfast Bar, Eat-in Kitchen, Five Piece Bath, High Ceilings, Walk-In Closet(s)

Measurements

  • Living Area: 4,055

Rooms

  • Basement: Partial, Walk-Out Access
  • Has Basement: Yes
  • Bathrooms Full: 1
  • Bathrooms Half: 1
  • Bathrooms Three Quarter: 1
  • Bathrooms Total Integer: 3
  • Bedrooms Total: 3
  • Main Level Bathrooms: 1

Other

General

  • Exclusions: Staging items

Location

  • Subdivision Name: Old Town

Parking

Parking

  • Garage Spaces: 2
  • Parking Features: Oversized
  • Parking Total: 2

Schools

Elementary School

  • Elementary School: Central
  • Elementary School District: St. Vrain Valley RE-1J

High School

  • High School: Longmont
  • High School District: St. Vrain Valley RE-1J

Middle or Junior School

  • Middle Or Junior School: Westview
  • Middle Or Junior School District: St. Vrain Valley RE-1J

Utilities

Equipment

  • Heating: Hot Water
  • Sewer: Public Sewer
  • Utilities: Electricity Connected, Natural Gas Connected
  • Water Source: Public

Frequently Asked Questions

How many bedrooms and bathrooms does this single-family home have?

There are 3 bedrooms and 3 bathrooms in this single-family home at 858 3rd Avenue.

What schools are nearby to 858 3rd Avenue?

Nearby schools include the Central Elementary School, Westview Middle School, and Longmont High School.

Does this single-family home have parking?

Yes, there are 2 parking spaces available for 858 3rd Avenue.

What are the annual taxes for 858 3rd Avenue?

Annual taxes for this single-family home are estimated at $8,270.

How does 858 3rd Avenue compare to other single-family homes in West Side Historic District?

This single-family home is listed 70% above the average price for single-family homes in West Side Historic District and has been on the market for 56 less days than the typical home in this area.

What is the square footage on this single-family home?

According to the MLS, this listing is 4,055 sqft.

858 3rd Avenue is a 3-bedroom, 3-bath single-family home for sale in Longmont CO 80501. Listed on Prevu for 0 days at $1,600,000. This property features 4,055 square feet of living space, located in Longmont. The median listing price for single-family homes in this area is $889,500. Nearby schools include Central Elementary School, Westview Middle School, and Longmont High School. The home offers private outdoor space, dishwasher, and parking. Explore more single-family home listings in Longmont.

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Full MLS Disclaimers

Rebate estimate is indicative only and based on listing price and estimated buyer's agent commission paid by owner, if applicable. Final rebates are subject to Terms of Use and may vary due to final negotiated transaction terms.