335 Dewey Ave, Boulder, CO 80304
Property image
Property image
OFF MARKET

335 Dewey Ave
Boulder, CO 80304

Mapleton Hill
  • 3 Beds
  • 3.5 Baths
  • 3,990 sqft

$3,563,700

Trulia Estimate
as of Jul 4, 2026
Est. Refi. Payment $19,538/mo*
Refinance Your Home

$3,563,700

Trulia Estimate
as of Jul 4, 2026
Est. Refi. Payment $19,538/mo*
Refinance Your Home
3 Beds
3.5 Baths
3,990 sqft

Local Information

  • Map ViewExplore the area around 335 Dewey Ave.
  • Schools1 Elementary School1 Middle School1 High School
  • Shop & Eat
-- mins to
Commute Destination

Description

Better than new Trailhead home finished 2017. Designed by HMH Architecture with a comfortably modern feel. The living spaces are on the top level with great light and views. Gorgeous finishes with great attention to detail throughout. See feature sheet in documents for specifics. 3 bedroom with study/ office, large family room and finished rec room for home gym. Sunny open main floor with vaulted ceiling opens to 23x13 deck for indoor/ outdoor entertaining. Patio yard for grilling and relaxing. Finished 2-car garage with EV charger.
335 Dewey Ave, Boulder, CO 80304 is a 3 bedroom, 4 bathroom, 3,990 sqft single-family home in Mapleton Hill, built in 2016. It last sold for $2,900,000 on Jul 13, 2020. It is currently off market. The Trulia Estimate is $3,563,700, with a rent estimate of $7,289/month.

Home Highlights

Parking
Garage
Outdoor
No Info
A/C
Heating & Cooling
HOA
None
Price/Sqft
No Info
Listed
Less than a day ago

Home Details for 335 Dewey Ave

Interior Features

Interior Details
BasementNumber of Rooms: 10
Heating & Cooling
Heating: Forced AirAir ConditioningCooling System: CentralHeating Fuel: Forced Air
Levels, Entrance, & Accessibility
Stories: 3
Appliances & Utilities
DishwasherDryerMicrowaveRefrigeratorWasher

Exterior Features

Exterior Home Features
Roof: MetalExterior: Shingle, Wood
Parking & Garage
GarageParking: Garage Detached

Property Information

Year Built
Year Built: 2016
Property Type / Style
Property Type: Single Family Home

Lot Information

Lot Area: 6098 sqft

Price History for 335 Dewey Ave

DatePriceEventSource
07/13/2020$2,900,000Sold
IRES as distributed by MLS GRID #912661
06/17/2020$3,195,000PendingAgent Provided
05/22/2020$3,195,000Listed For SaleAgent Provided
10/27/2017$2,500,000Sold
IRES as distributed by MLS GRID #835965
04/24/2015$749,000Sold
N/A

Market trends in Boulder

Last updated May 2026
Buyer'sMarketSeller'sMarket
Avg. sale price
$955K
$13.33KMoM
Sale-to-List Price
97.9%
1.0%MoM
Price per sq ft
$503
$12MoM
Available listings
775
41MoM
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Property Tax and Assessment

Year2025
Tax$23,757
Assessment$3,988,800
Home facts updated by county records

Comparable Sales for 335 Dewey Ave

Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
424 Concord Ave, Boulder, CO
0.11
Single-Family Home
$2,250,000
10/14/25
3
2
2,875
2449 5th St, Boulder, CO
0.18
Single-Family Home
$2,651,475
05/01/26
5
4
3,549
405 Valley View Dr, Boulder, CO
0.08
Single-Family Home
$1,810,000
03/02/26
3
2.5
1,937
625 Concord Ave, Boulder, CO
0.24
Single-Family Home
$2,700,000
02/25/26
4
3
4,640
2750 7th St, Boulder, CO
0.29
Single-Family Home
$2,847,450
09/08/25
4
2.5
3,044
2586 3rd St, Boulder, CO
0.05
Single-Family Home
$4,210,200
03/09/26
5
4
4,390
2656 4th St #A, Boulder, CO
0.06
Single-Family Home
$5,850,000
03/10/26
3
3
2,335
2942 4th St, Boulder, CO
0.34
Single-Family Home
$2,100,000
07/24/25
4
3.5
4,208
545 Mapleton Ave, Boulder, CO
0.27
Single-Family Home
$2,225,000
03/23/26
3
3
2,940
2237 4th St, Boulder, CO
0.32
Single-Family Home
$2,180,000
09/29/25
4
4.5
4,108

Nearby homes

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Assigned Schools

These are the assigned schools for 335 Dewey Ave.
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.

Neighborhood Overview

Mapleton Hill
See Local Highlights
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."
    0
    Flag
  • Trulia User
    "It seems as if most people own dogs . Very dog friendly . Dogs always seem well trained . Dogs also seem very friendly . "
    1
    Flag
  • Liz J.
    "There are lots of dog walkers and runners. Many wet dogs show that there is good swimming in the ditches. "
    1
    Flag
  • 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."
    0
    Flag
  • 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."
    1
    Flag
  • 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. "
    3
    Flag
  • Noah B.
    "Quiet and calm neighborhood, close to everything that makes Boulder great. Easy access to Pearl, Sanitas, Wonderland, and Ideal Market area. "
    1
    Flag
  • 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!"
    2
    Flag

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Homes for sale near 335 Dewey Ave

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Off Market Homes Near 335 Dewey Ave

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