3991 E 121st Avenue, Thornton, CO 80241
FOR SALE

3991 E 121st Avenue
Thornton, CO 80241

  • 2 Beds
  • 2 Baths
  • 1,884 sqft

$1,950,000

Original price: $2,340,000
Est. Mortgage $11,194/mo*
Get Pre-Qualified

$1,950,000

Original price: $2,340,000
Est. Mortgage $11,194/mo*
Get Pre-Qualified
2 Beds
2 Baths
1,884 sqft

Local Information

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

Description

Prime 5-Unit Townhome Investment Opportunity

Multifamily gem in the heart of Thornton! This well-maintained 6-units within the Thornton Ridge townhome complex offers a balanced mix of spacious layouts and strong rental performance, ideal for both seasoned investors and newcomers seeking reliable cash flow.

Property Breakdown:
5 units: 2 bed / 1.5 bath townhomes
Current rents: $2,100-$2,400 per month
Cap rate: 5-6%, with potential upside through light updates and rent optimization
Strong rental history: Consistent occupancy and long-term tenants. Seller can provide full rental history and detailed income documentation

Each home features comfortable living spaces, well maintained finishes in varying levels of updates, and private outdoor areas.

Whether you’re looking to expand your portfolio or enter the Denver metro multifamily market, this portfolio offers immediate cash flow, proven stability, and future growth potential.

Current Rents: $2,100-$2,400/month
Cap Rate: 5-6%
Financials: Full rent roll and income verification available upon request

Home Highlights

Parking
1 Car Garage
Outdoor
Deck
A/C
Heating & Cooling
HOA
$245/Monthly
Price/Sqft
$1,035
Listed
114 days ago

Home Details for 3991 E 121st Avenue

Interior Features

Interior Details
Basement: Unfinished
Beds & Baths
Number of Bedrooms: 2Number of Bathrooms: 2
Dimensions and Layout
Living Area: 1884 Square Feet
Appliances & Utilities
Laundry: In Unit
Heating & Cooling
Heating: Forced AirHas CoolingAir Conditioning: Central AirHas HeatingHeating Fuel: Forced Air
Windows, Doors, Floors & Walls
Common Walls: 2+ Common Walls
Levels, Entrance, & Accessibility
Stories: 2Levels: Two
View
No View

Exterior Features

Exterior Home Features
Roof: CompositionPatio / Porch: Deck
Parking & Garage
Number of Garage Spaces: 1Number of Covered Spaces: 1Has a GarageHas an Attached GarageParking Spaces: 1Parking: Garage Attached
Frontage
Not on Waterfront
Water & Sewer
Sewer: Public Sewer
Finished Area
Finished Area (above surface): 1244 Square Feet

Days on Market

Days on Market: 114

Property Information

Year Built
Year Built: 1997
Property Type / Style
Property Type: Residential IncomeProperty Subtype: QuadruplexStructure Type: QuadruplexArchitecture: Quadruplex
Building
Construction Materials: FrameAttached To Another Structure
Property Information
Not Included in Sale: Tenant And Seller Personal PropertyParcel Number: R0026161

Price & Status

Price
List Price: $1,950,000Price Per Sqft: $1,035

Active Status

MLS Status: Active

Location

Direction & Address
City: ThorntonCommunity: Thornton Ridge Filing
School Information
Elementary School: StellarElementary School District: Adams 12 5 Star SchlJr High / Middle School: CenturyJr High / Middle School District: Adams 12 5 Star SchlHigh School: Mountain RangeHigh School District: Adams 12 5 Star Schl

Agent Information

Listing Agent
Listing ID: 4732768

Building

Building Area
Building Area: 1884 Square Feet

Community

Not Senior Community

HOA

HOA Name: Thornton Ridge TownhomesHOA Phone: 970-481-9574Has an HOAHOA Fee: $245/Monthly

Listing Info

Special Conditions: Standard

Offer

Listing Terms: 1031 Exchange, Cash, Other

Mobile R/V

Mobile Home Park
Mobile Home Units: Feet

Business

Business Information
Ownership: Corporation/Trust

Rental Terms, Policies & Fees

Owner Pays: Association Fees

Miscellaneous

BasementMls Number: 4732768Attribution Contact: kayla.schmitz@compass.com, 303-249-4118Above Grade Unfinished Area: 1244Below Grade Unfinished Area: 640Showing Service Name: None
Last check for updates: about 6 hours ago
Listing courtesy of Kayla Schmitz, (303) 249-4118
Compass - Denver
Source: REcolorado as distributed by MLS GRID, MLS#4732768
Also Listed on REcolorado as distributed by MLS GRID.

Market trends in Thornton

Last updated April 2026
Buyer'sMarketSeller'sMarket
Avg. sale price
$483K
$1.17KMoM
Sale-to-List Price
100.0%
Price per sq ft
$238
$3MoM
Available listings
468
14MoM

Price History for 3991 E 121st Avenue

DatePriceEventSource
03/18/2026$1,950,000PriceChange
REcolorado as distributed by MLS GRID #4732768
02/11/2026$2,340,000Listed For SaleREcolorado as distributed by MLS GRID #4732768

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Property Tax and Assessment

Year2025
Tax$2,438
Assessment$386,000
Home facts updated by county records

Comparable Sales for 3991 E 121st Avenue

Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
7950 Patricia Drive, Denver, CO
5.71
Multi-Family Home
$540,000
12/22/25
4
2
1,976
8325 Fox Street, Denver, CO
5.57
Multi-Family Home
$725,000
05/11/26
8
4
3,480
6671 E 73rd Place, Commerce City, CO
6.22
Multi-Family Home
$560,000
07/31/25
3
3
1,700
6881 E 74th Avenue, Commerce City, CO
6.17
Multi-Family Home
$560,000
03/31/26
5
3
2,420
9023 Perry Street, Westminster, CO
6.52
Multi-Family Home
$675,000
09/25/25
4
3
3,333

Nearby homes

Get a sense of prices in the area by checking nearby homes.
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Assigned Schools

These are the assigned schools for 3991 E 121st Avenue.
View nearby schools on GreatSchools
The GreatSchools Rating compares schools on a variety of school quality indicators including test scores, college readiness, equity and more. Learn more.

What Locals Say about Thornton

At least 717 Trulia users voted on each feature.

  • 91 % Say there are sidewalks

  • 89 % Say it's dog friendly

  • 85 % Say car is needed

  • 80 % Say parking is easy

  • 74 % Say kids play outside

  • 73 % Say yards are well-kept

  • 73 % Say there's holiday spirit

  • 67 % Say streets are well-lit

  • 61 % Say it's quiet

  • 58 % Say people would walk alone at night

  • 55 % Say there's wildlife

  • 54 % Say it's walkable to grocery stores

  • 50 % Say neighbors are friendly

  • 50 % Say they plan to stay for at least 5 years

  • 42 % Say it's walkable to restaurants

  • 28 % Say there are community events

Sourced by Trulia users. Learn more about our methodology.
  • Tammy Ralston
    "Very well maintained areas nice parks with playgrounds as well as open spaces. We live in a newer part of Thornton so food is a little farther away but in about 10-15min you’re on the 25 then you can head anywhere."
    0
    Flag
  • Antonio Gonzalez
    "I drive to Aurora near Buckley for work, it takes about an hour. Freeway use is the only way to get anywhere out of Thornton quickly."
    0
    Flag
  • Hooligancats
    "There are lots of friendly dogs in the area and the owners are super nice. Lots of dog walking too. "
    0
    Flag
  • Trulia User
    "Tree’s neighborhood & people the stores around us , the amount of places u can go to & the amount of food selections u can choose from is great lots of Mexican and mix of other types of restaurants!"
    0
    Flag
  • Sarah Vargas
    "Dog owners would like the way people treat the dogs and the way dogs treat the people in this neighborhood "
    0
    Flag
  • Miguel Gutierrez
    "Happy to live in Thornton great friends and great neighbors. Great with the ROI over the years. I recommend it"
    0
    Flag
  • Jason.barrios
    "Elementary and middle schools are right in the neighborhood. A golf course runs through the neighborhood and is a municipal course."
    0
    Flag
  • Lariza.cantu
    "I love my neighborhood. Thornton as a city does a really good job at holding community events that help develop a sense of community and pride."
    0
    Flag
  • Jnburg17
    "I really don’t like the area. Lots of crime and it’s very uncomfortable. There are some nice parks in the area that are nice but you have to watch your back at all times. "
    0
    Flag
  • Jnburg17
    "So much crime! It’s so hard to feel safe or that your property is safe. It will be a blessing when we are able to get out of this city or state!"
    0
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  • Danafarnham
    "The neighborhood is unique because of the birds that inhabit it. We have owls and bald eagles. We often get the Eastlake turkeys that pay a visit. "
    0
    Flag
  • Anchandra14
    "Annual community gathering, safe area, not crowded, good neighborhood, good libraries, good school, near hospital."
    0
    Flag
  • Trulia User
    "It’s a great quiet culdesac. We enjoy our neighbors and the paths to walk on with our pets. Packages are safe "
    1
    Flag
  • Betsyjoy
    "Thornton Winter Fest at recreation center at 112th and Colorado Blvd. Adams County Fairgrounds 4th of July fireworks."
    0
    Flag
  • Jason.barrios
    "Long to get to Tech center on south side of city. Commute to downtown is 15 minutes. Commute in north is easy."
    4
    Flag
  • Purplegirls_3
    "i drive my car everywhere and lots of convenient shopping malls around the neighborhood. Easy access to 470 and 1-25 also back roads if not wanting to use the tolls. great community! "
    0
    Flag
  • Dawnnicastro
    "People are friendly, and it’s a safe place to live. People are out walking their dogs a lot. It’s relatively quiet and pretty peaceful around here. Streets are well lit, and sidewalks/roads are in good shape."
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    Flag
  • Baylion22
    "It’s quiet regardless of how many cars there are it’s peaceful, no loud music just crickets and birds. It’s as if the entire neighborhood is problay full of elderly hence why there are no loud noises not even at night. You may hear a car burn out if your outside from afar but that’s bout it. I see no other reason not to live here. I haven’t heard of any robins or killings in the area or gunshots, and no people using illegal drugs either."
    0
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  • Lluvia L. D.
    "Any breed is welcome, it’s very much a dog loving neighborhood. Always see dogs walking, most people pick up after their dogs"
    1
    Flag
  • Shalon R.
    " I love how close I am to multiple malls, stores, shopping center etc . Thornton is close to boulder for a easy hike and Denver for a night downtown . "
    0
    Flag
  • Sarah S.
    "Lots of places to roam. Good area. Fun for family and pets. Northglenn is great as well. Adcbhyggkoifd"
    0
    Flag
  • Vanessa R.
    "Is very Quite, family friendly and great neighbors. Lots of trails for entertainment and good local restaurants "
    1
    Flag
  • Jennifer W.
    "Nice, friendly neighborhood. Close to store and restaurant. Several parks in area for kids. Walking distance to schools."
    1
    Flag
  • Yamilet S.
    "Very good and clean quiet area. Very nice people around always quiet in the neighborhood never any bad experiences "
    0
    Flag
  • Doger96
    "Newer, nice but private neighbors. Clean not alot of threw traffic. Nice mix of families and young couples."
    0
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  • Sandra O.
    "Very safe and well maintained. I am a fan of the neighborhood kids being able to play outside and feel safe doing so. In any case I appreciate and love living in Thornton "
    2
    Flag
  • Kmgriff
    "Very dog friendly. Lots of trails around and good dog parks. The neighborhood has many friendly dogs "
    0
    Flag
  • Vbsierra15
    "Please Watch out for wild animals at dusk. I’ve seen multiple foxes and coyotes in our neighborhood. "
    1
    Flag
  • Ky H.
    "Has great access to public transportation. About 25 minutes to downtown .I-25 traffic could be crazy at times so try to avoid the peak hours ."
    0
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  • Alfred P.
    "I am 3blocks from I25 @ 120th. This is the easiest spot to start any journey around town. Food of all kinds can be found in the neighborhood."
    0
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  • Dia.boss1313
    "Everyone loves their doggies . As long as you don’t mess with me doggie I won’t mess with chores . Lol :)"
    0
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  • Krystal K.
    "so far we like it. neighbors are kind and maintain the property, I love the school district and it's a shorter commute to Denver."
    0
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  • Mercedes
    "A gazillion miles away from anything. There's transit but the routes are awful. The neighbors seem friendly, but are extremely stand off-ish when it comes to newbies in the community. Otherwise it's a cute community. "
    0
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  • Tdrago111
    "Like everywhere else in Colorado. Annoying and slow. so many people coming here and making more traffic. But great if you like to listen to music while you are being slowed down on the road. "
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  • Brina E. D.
    "I'm not that involved in the community to be able to tell you what makes it special. Personally, this part of Thornton is not somewhere I would suggest living. "
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  • Danny A.
    "Get to know the area around you want to live first. the are good parts and not so good parts. There is a lot of people that move here and like it here."
    0
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  • Kay W
    "A lot of neighbors are very active with their dogs. There is a lot of open space and trails to walk your dogs."
    0
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  • Abe B.
    "Trunk or Treat for Halloween. Thornton Fest in early summer. 4th of July fireworks show which is very unique. Pirate Fest in early autumn, at Webster Lake. Numerous Xmas lights all over the place, most notably, what my family has dubbed "The Box House", on Pecos St, just north of 100th. Numerous fireworks shows all over for New Year's. "
    0
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  • Sharon
    "there is two amazing public dog parks, top notch vets in area and water bowls for dogs out and about."
    0
    Flag
  • Mattnarielle
    "The neighborhood I live in is not to bad. However if you have kids it’s always best to make sure they are in by 10 since there is some suspicious characters."
    0
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LGBTQ Local Legal Protections

Kayla Schmitz, Compass - Denver
Agent Phone: (303) 249-4118
© 2026 REcolorado® All rights reserved. Certain information contained herein is derived from information which is the licensed property of, and copyrighted by, REcolorado®. Some IDX listings have been excluded from this website. Click here for more information
3991 E 121st Avenue, Thornton, CO 80241 is a 2 bedroom, 2 bathroom, 1,884 sqft multi-family built in 1997. This property is currently available for sale and was listed by REcolorado as distributed by MLS GRID on Feb 11, 2026. The MLS # for this home is MLS# 4732768.