316 21st Avenue Longmont, CO ^$ 750,000

316 21st Avenue

^$ 750,000

Back to search

316 21st Avenue

Longmont, CO, 80501

^$ 750,000

Bedrooms8 Baths4.0 Sq 4,727

Monthly Estimate*

^$ 4,618

Listed by Marcus & Millichap Real Estate Investment Services of Atlanta, Inc.

316 21st Avenue, Longmont, CO 80501 - Image 1

Multi-Family Home for sale in Longmont, CO

for $750,000 with 8 bedrooms and 4 full baths. This 4,727 square foot home was built in 1978 on a lot size of 0.19.

316 21st Ave is a four-unit investment opportunity in Longmont, CO. The property consists of four spacious 2-bedroom units, each equipped with in-unit washer and dryer and attached garages, making it an ideal fit for both an owner-user or an investor seeking a long-term, value-add asset. With garage parking and below-market rents, the property offers clear and immediate avenues for income growth. Situated near Horizon Park, a vibrant retail center anchored by King Soopers alongside co-tenants such as Dollar Tree, Planet Fitness, and Big Lots, 316 21st Ave benefits from strong local consumer traffic and convenience. Additionally, Longmont’s labor market remains robust, supported by expanding sectors such as retail, advanced manufacturing, and professional services, and major employers including Seagate and UC Health, further strengthening the property’s investment profile.

Multi-Family Active

Price

^$ 750,000

Bedrooms

Full Bath

Property Type

Multi-Family

Taxes

^$ 6,160

Style

Quadruplex

Lot Size

0.19

Year Built

1978

Town/City

Longmont

County/Region

Boulder

MLS | Web ID

2201810

Features

General

Sewer Public Sewer

Heating Baseboard

Cooling Other

Roof Composition

Garage Spaces 1

Construction Materials Frame

Exclusions n/a

Year Built 1978

Levels Bi-Level

Property Subtype Quadruplex

Tax Year 2024

Ownership Individual

Gross Income 58886

County Boulder

Operating Expense 36432

Property Type Residential Income

HOA N

Attached Garage Y

Subdivision Name WESTERN MEADOWS REPLAT A - LG

Status Active

High School Longmont

City Longmont

Senior Community Y/N N

High School District St. Vrain Valley RE-1J

Lot Size Units Acres

Lot Size Square Feet 8276.4

Carport Spaces 0

Listing Terms Other

Elementary School Longmont Estates

Tax Annual Amount 6160

Middle/Junior High School Erie

Structure Type Quadruplex

Standard Status Active

Middle/Junior School District St. Vrain Valley RE-1J

Elementary School District St. Vrain Valley RE-1J

Cap Rate 4.86

Exterior

Total Parking 1

Lot Size Area 0.19

Building Area Total 4727

Lot Size Acres 0.19

Interior

Basement (Y/N) N

Above Grade Finished Area 3689

Total Bedrooms 8

Total Baths 4

Internal Only

Street Number 1 316

* Excluded Features

List By

Marcus & Millichap Real Estate Investment Services Of Atlanta, Inc.

Broker

(303) 328-2075

Phone

Affordability Calculator

$5,131

Per Month

Monthly Principal & Interest: $4,618
Monthly Property Taxes: $513
Monthly Home Insurance: --

Set your offer price

Down Payment

Loan Term

Interest Rate

Yearly Property Taxes

Yearly Home Insurance

Default based on a 30-year fixed rate of 6.25% with 20% down. The estimated payment is offered for convenience and is not an offer of credit. Due to market fluctuations, interest rates are subject to change at any time and without notice. Your individual rate may vary. Rates may differ for FHA, VA or jumbo loans.

Learn more about how to save

Discover how much house you can afford

Your dream home may be within reach.

Learn More about how to save

THE TIME TO SELL IS NOW! What's my home worth?

Nearby

Trends
Schools

Multi-family listings in Longmont, CO

Average List Price ^$635,731

Percent of Sale Price 15%

About Longmont, CO

95,205 Population

31% Since 2002

^$64,602 Median Income

39.12 Median Age

30% Households with Children

View more area information

Trends Information provided by ATTOM Data Solutions.

1880288 Elementary School

3864465 Middle School

Longmont High School High School

See complete school information

Pricing History

Date	Price	Price Change	Description
12/16/2025	$750,000		Listed Price

Map

More homes like this one

homes for you

See all

316 21st Avenue, Longmont, CO, 80501 is a Multi-Family Home for sale at $750,000 with 4,727 sqft and a lot size of 0.19. 316 21st Avenue has 8 bedrooms, 4.0 baths, and was built in 1978. The property's zip code is 80501 which is in Longmont, CO

*Information deemed reliable but not guaranteed.

Financial calculator disclaimer: Default based on a 30-year fixed rate of 6.25% with 20% down. The estimated payment is offered for convenience and is not an offer of credit. Due to market fluctuations, interest rates are subject to change at any time and without notice. Your individual rate may vary. Rates may differ for FHA, VA or jumbo loans.

The data relating to real estate on this web site comes in part from the Internet Data eXchange (IDX) Program of the REcolorado. Real estate listings held by firms other than Weichert Realtors are marked with the IDX logo and detailed information about them includes the Listing Broker’s Firm Name.

The information being provided is 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.

Data is updated as of 5/2/2026.

This publication is designed to provide information with regard to the subject matter covered. It is displayed with the understanding that the publisher and authors are not engaged in rendering real estate, legal, accounting, tax, or other professional services and that the publisher and authors are not offering such advice in this publication. If real estate, legal, or other expert assistance is required, the services of a competent, professional person should be sought.

The information contained in this publication is subject to change without notice. REcolorado. MAKES NO WARRANTY OF ANY KIND WITH REGARD TO THIS MATERIAL, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. REcolorado. SHALL NOT BE LIABLE FOR ERRORS CONTAINED HEREIN OR FOR ANY DAMAGES IN CONNECTION WITH THE FURNISHING, PERFORMANCE, OR USE OF THIS MATERIAL.

PUBLISHER’S NOTICE: All real estate advertised herein is subject to the Federal Fair Housing Act and the Colorado Fair Housing Act, which Acts make it illegal to make or publish any advertisement that indicates any preference, limitation, or discrimination based on race, color, religion, sex, handicap, familial status, or national origin.

REcolorado. will not knowingly accept any advertising for real estate that is in violation of the law. All persons are hereby informed that all dwellings advertised are available on an equal opportunity basis.

ALL RIGHTS RESERVED WORLDWIDE. No part of this publication may be reproduced, adapted, translated, stored in a retrieval system or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of the publisher. The information contained herein including but not limited to all text, photographs, digital images, virtual tours, may be seeded and monitored for protection and tracking.

*Full Name

*Email

*Phone

I am interested in financing options

Get more info

By submitting the form, you agree that Weichert^® may contact you via phone or text about your inquiry, which may involve the use of automated means. You are not required to consent as a condition of purchasing any property, goods or services. For any other information please read our privacy policy.

Get more info

Looking for an Associate?

Already Working with an Associate?

316 21st Avenue

Multi-Family Home for sale in Longmont, CO

Affordability Calculator

Map

More homes like this one

Get more info about this home