433 Mapleton Ave #B, Boulder, CO 80304
OFF MARKET

433 Mapleton Ave #B
Boulder, CO 80304

Mapleton Hill
  • 1 Bed
  • 1 Bath
  • 724 sqft

$579,100

Trulia Estimate
as of Aug 9, 2026
Est. Refi. Payment $3,296/mo*

$579,100

Trulia Estimate
as of Aug 9, 2026
Est. Refi. Payment $3,296/mo*
1 Bed
1 Bath
724 sqft

Local Information

  • Map ViewExplore the area around 433 Mapleton Ave #B.
  • Schools1 Elementary School1 Middle School1 High School
  • Shop & Eat
-- mins to
Commute Destination

Home Highlights

Property Type
Apartment
Year Built
1906
Living Area
724 sqft
Price/Sqft
$800
Parking
Garage

About this House

Location can't be beat. This loft apartment is located in the beautiful Mapleton Hill Historic District on 4th & Mapleton in the heart of West Boulder. This upscale gem is just a 4 min walk to open space & Mount Sanitas Trail, and a 10 min walk to West Pearl St. Mall. Arguably the best unit in the building (top right corner unit) with front and rear balconies and views. Open concept with original exposed brick interiors, concrete counter tops, and wood floors.

1 BR/1B (647 sq ft)

Price: $2700/mo

Utilities:

Paid by landlord: water & heat (radiant heat from the building boiler)

Paid by tenant: Xcel, cable, internet

HOA covers building upkeep, snow removal & grounds maintenance

Off-street parking (in rear)

W/D shared in basement of building

Available Dec 1st (negotiable)

Lease term (negotiable)
433 Mapleton Ave #B, Boulder, CO 80304 is a 1 bedroom, 1 bathroom, 724 sqft apartment in Mapleton Hill, built in 1906. It last sold for $349,000 on Aug 29, 2001. More recently, it was listed as a rental in October 2021 with an asking price of $2,500 per month. That rental listing was removed on November 2, 2021. It is currently off market. The Trulia Estimate is $579,100, with a rent estimate of $2,320/month.

Home Details for 433 Mapleton Ave #B

Interior Features

Heating & Cooling
Heating: Forced Air, OtherCooling System: OtherHeating Fuel: Forced Air
Levels, Entrance, & Accessibility
Stories: 1Floors: Hardwood
Interior Details
Number of Rooms: 4

Property Information

Year Built
Year Built: 1906Year Updated: 1979
Property Type / Style
Property Type: ApartmentArchitecture: Other

Exterior Features

Exterior Home Features
DeckExterior: Brick, Cement Concrete
Parking & Garage
GarageParking: Off Street, Garage

Community

Units in Building: 1

Additional Information

On Site Laundry Available

Price History for 433 Mapleton Ave #B

DatePriceEventSource
11/02/2021ListingRemovedZillow Rental Manager
10/26/2021$2,500Listed For RentZillow Rental Manager
08/29/2001$349,000Sold
N/A

Market trends in Boulder

Last updated June 2026
Buyer'sMarketSeller'sMarket
Avg. sale price
$891K
$60.83K
MoM
Sale-to-List Price
98.2%
0.4%
MoM
Price per sq ft
$503
$2
MoM
Available listings
778
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Property Tax and Assessment

Year2025
Tax$3,193
Assessment$701,200
Home facts updated by county records

Comparable Sales for 433 Mapleton Ave #B

Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
0.66
Apartment
$1,150,000
12/31/25
1
1
1,038
0.30
Apartment
$530,000
08/22/25
2
1.5
996
0.45
Apartment
$1,611,700
05/18/26
1
1
500
0.69
Apartment
$1,125,000
03/02/26
1
1
750
0.74
Apartment
$610,000
11/05/25
2
1
883
0.50
Apartment
$750,000
11/04/25
2
2
1,008
1.45
Apartment
$345,000
06/09/26
1
1
570
1.21
Apartment
$1,250,000
04/14/26
3
2
1,300
1.02
Apartment
$900,000
07/15/26
2
1
900
1.45
Apartment
$355,000
01/20/26
1
1
449
Home facts updated by county records

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 433 Mapleton Ave #B.
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 Mapleton Hill

At least 9 Trulia users voted on each feature.
  • 100 % Say it's walkable to restaurants

  • 100 % Say there are sidewalks

  • 95 % Say it's dog friendly

  • 90 % Say it's walkable to grocery stores

  • 84 % Say yards are well-kept

  • 82 % Say people would walk alone at night

  • 78 % Say kids play outside

  • 75 % Say there's wildlife

  • 67 % Say there's holiday spirit

  • 67 % Say parking is easy

  • 67 % Say there are community events

  • 64 % Say it's quiet

  • 63 % Say they plan to stay for at least 5 years

  • 57 % Say neighbors are friendly

  • 56 % Say streets are well-lit

  • 29 % Say car is needed

Sourced by Trulia users. Learn more about our methodology.
  • Trulia User
    "I bike to campus in 20 minutes and it’s great besides the traffic and gas fumes from cars which sucks transit is very good here, bus stops all up and down Broadway."
  • Trulia User
    "It seems as if most people own dogs . Very dog friendly . Dogs always seem well trained . Dogs also seem very friendly . "
  • Liz J.
    "There are lots of dog walkers and runners. Many wet dogs show that there is good swimming in the ditches. "
  • Taraarnolds
    "Loads of people out walking dogs and many folks stopping to chat too. You'll sometimes hear a dog or two barking, but never for long."
  • Thomas
    "I've lived in the Mapleton Hill neighborhood for 5 years. It is so convenient and quaint; my kids just love having the freedom to play with all the other kids here."
  • Maxclauson c. n.
    "Historic neighborhood that is close to town but secluded enough to be calm and quiet. Filled with interesting new arrivals and long time residents. "
  • Noah B.
    "Quiet and calm neighborhood, close to everything that makes Boulder great. Easy access to Pearl, Sanitas, Wonderland, and Ideal Market area. "
  • amazingdairy
    "West Pearl is truly a neighborhood unto itself, with a variety of shops & cafes and easy access to trails. Start your day with some tea and scones at Spruce Confections, enjoy browsing various antique stores and Two Hand Paperie, then select a bottle of wine at West End Wine Shop. Lolita's is conveniently located across the street to pick up last minute groceries for dinner, or you can enjoy a slice at Nick and Willy's and have some confectionary treats at Piece, Love & Chocolate. Settlers' Park is just down the street, as well as the trail heads to Red Rocks & Sanitas, and the Boulder Bike Path. When you live here, everything that makes Boulder so wonderful is only steps away!"

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Homes for sale near 433 Mapleton Ave #B

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Off Market Homes Near 433 Mapleton Ave #B

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Frequently asked questions about 433 Mapleton Ave #B

  • What is 433 Mapleton Ave #B estimated to be worth?
    Trulia's estimated value for 433 Mapleton Ave #B in Boulder, CO is $579,100.
  • What is the price history for 433 Mapleton Ave #B?
    433 Mapleton Ave #B in Boulder, CO last sold for $349,000 in August 2001.
  • Is Boulder a buyer's or seller's market?
    Boulder is currently a balanced market, based on recent for-sale activity.
  • What's the median sale price in Boulder?
    The median sale price in Boulder is $891K. That is down $60.83K from the prior month.
  • Does 433 Mapleton Ave #B have air conditioning?
    Yes, 433 Mapleton Ave #B in Boulder, CO has air conditioning.
  • Does 433 Mapleton Ave #B have laundry facilities?
    Yes, 433 Mapleton Ave #B in Boulder, CO has laundry facilities.