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

425 Mapleton Ave #B
Boulder, CO 80304

Mapleton Hill
  • Studio
  • 1 Bath
  • 607 sqft

$603,500

Trulia Estimate
as of Aug 10, 2026
Est. Refi. Payment $3,432/mo*

$603,500

Trulia Estimate
as of Aug 10, 2026
Est. Refi. Payment $3,432/mo*
Studio
1 Bath
607 sqft

Local Information

  • Map ViewExplore the area around 425 Mapleton Ave #B.
  • Schools1 Elementary School1 Middle School1 High School
  • Shop & Eat
-- mins to
Commute Destination

Home Highlights

Property Type
Apartment
Living Area
607 sqft
Price/Sqft
$994

About this House

Location, Location, Location
This condo is the MOST desirable iconic location in Mapleton Hill in a famous renovated Victorian condo where Alan Ginsburg and Jack Karouac lived in the 60's. The location is 1/2 block to the best hiking trailhead in Boulder - Mt. Sanitas! The second floor condo has a front and back porch and deck with mountain views. The front of the building is landscaped
with outstanding giant trees and flowers with a backyard landscaped so beautifully that weddings have been held there! The condo has recently been redone to the HIGHEST LUXURY FINISHES AND HIGH END APPLIANCES while keeping its charm! The Condo is walking distance to the Pearl St. Mall and Community Mall.

Off street parking for 1 car with plenty of on street parking is available. No smoking of any kind is allowed from residents or guests.
All HOA fees of $600 per mo. are paid for by owner which includes heat, water, trash, landscape and all exterior maintenance and snow removal. Resident pays for electricity and internet.
The Mapleton Hill Condos are very quiet and residents are respectful of maintaining a quality living environment. Loud parties, or anything that disturbs the quiet enjoyment of the residents is not acceptable. Not adhering to any of these requests will be in violation of the lease agreement.
425 Mapleton Ave #B, Boulder, CO 80304 is a studio, 1 bathroom, 607 sqft apartment in Mapleton Hill. It last sold for $427,000 on Aug 5, 2015 (14,778% above the $2,870 asking price). It is currently off market. The Trulia Estimate is $603,500, with a rent estimate of $2,237/month.

Home Details for 425 Mapleton Ave #B

Interior Features

Heating & Cooling
Heating: Wall FurnaceAir ConditioningCooling System: Window UnitHeating Fuel: Wall Furnace
Appliances & Utilities
DishwasherDryerRefrigeratorWasher
Levels, Entrance, & Accessibility
Floors: Hardwood

Property Information

Property Type / Style
Property Type: Apartment

Rental Terms, Policies & Fees

Lease Term: 1 YearAvailable: now

Exterior Features

Parking & Garage
Parking: Off Street Parking, On Site

Price History for 425 Mapleton Ave #B

DatePriceEventSource
08/05/2015$427,000Sold
N/A
09/13/2000$262,000Sold
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$3,453
Assessment$759,600
Home facts updated by county records

Comparable Sales for 425 Mapleton Ave #B

Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
0.30
Apartment
$530,000
08/22/25
2
1.5
996
0.45
Apartment
$1,611,700
05/18/26
1
1
500
0.75
Apartment
$610,000
11/05/25
2
1
883
0.50
Apartment
$750,000
11/04/25
2
2
1,008
0.69
Apartment
$1,125,000
03/02/26
1
1
750
0.66
Apartment
$1,150,000
12/31/25
1
1
1,038
1.02
Apartment
$900,000
07/15/26
2
1
900
1.45
Apartment
$345,000
06/09/26
1
1
570
0.77
Apartment
$1,150,000
03/02/26
2
2
1,583
1.46
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 425 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 425 Mapleton Ave #B

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Off Market Homes Near 425 Mapleton Ave #B

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Frequently asked questions about 425 Mapleton Ave #B

  • What is 425 Mapleton Ave #B estimated to be worth?
    Trulia's estimated value for 425 Mapleton Ave #B in Boulder, CO is $603,500.
  • What is the price history for 425 Mapleton Ave #B?
    425 Mapleton Ave #B in Boulder, CO last sold for $427,000 in August 2015.
  • 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 425 Mapleton Ave #B have air conditioning?
    Yes, 425 Mapleton Ave #B in Boulder, CO has air conditioning.
  • Does 425 Mapleton Ave #B have laundry facilities?
    Yes, 425 Mapleton Ave #B in Boulder, CO has in-unit laundry.