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

$3,691,900

Trulia Estimate
  • 5 Beds
  • 4 Baths
  • 5,035 sqft

434 Dewey Ave, Boulder, CO 80304

Mapleton Hill
Est. Refi. Payment $21,376/mo*
Refinance Your Home
Currently Off Market - Sold Oct 27, 2023 for $3,495,000

Home Value

Trulia Estimate
$3.69M
Since last month
Decreased$68K (-1.8%)
Since last year
$100 (0%)
Since last sale
Increased$158K (+4.5%)
Learn more about this home's value by checking out its Trulia Estimate, the value of nearby homes, and how much similar homes have sold for.

Trulia Estimate

The of this home's value increased by +49% in the last 10 years
MonthEstimated value
2026
September 2026$3.65M
August 2026$3.7M
July 2026$3.72M
June 2026$3.73M
May 2026$3.76M
April 2026$3.75M
March 2026$3.67M
February 2026$3.59M
January 2026$3.47M
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016

Comparable sales

These are recently sold homes that have a similar location or other similar features to this home, like bedrooms, bathrooms, and square footage. Get a sense of the expected prices in the area by viewing these homes.
Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
2586 3rd St, Boulder, CO
0.09
Single-Family Home
$4,210,200
03/09/26
5
4
4,390
2675 Dakota Pl #(newlands), Boulder, CO
0.15
Single-Family Home
$4,125,000
08/07/26
5
4.5
5,989
507 Valley View Dr, Boulder, CO
0.12
Single-Family Home
$4,287,600
06/18/26
5
5
5,799
2449 5th St, Boulder, CO
0.13
Single-Family Home
$2,651,475
05/01/26
5
4
3,549
2670 6th St, Boulder, CO
0.16
Single-Family Home
$5,090,000
10/20/25
5
5.5
4,032
2697 4th St, Boulder, CO
0.13
Single-Family Home
$4,000,000
11/21/25
6
5.5
3,887
2656 4th St, Boulder, CO
0.07
Single-Family Home
$5,850,000
03/09/26
6
5.5
4,814
625 Concord Ave, Boulder, CO
0.15
Single-Family Home
$2,700,000
02/25/26
4
3
4,640
2925 4th St, Boulder, CO
0.36
Single-Family Home
$2,745,000
10/16/25
4
4.5
4,457
720 Mapleton Ave, Boulder, CO
0.30
Single-Family Home
$4,587,500
09/29/25
5
5.5
5,091

Nearby home prices

Get a sense of expected prices in the area by checking the value of nearby homes.
Address
Distance
Price
Bed
Bath
Sqft
Status
424 Concord Ave, Boulder, CO 80304
0.07
$2,232,100
3
2
2,875
Off Market
2645 5th St, Boulder, CO 80304
0.02
$1,709,000
4
4
2,528
Off Market
403 Dewey Ave, Boulder, CO 80304
0.04
$2,500,800
5
3
3,268
Off Market
2586 3rd St, Boulder, CO 80304
0.09
$4,210,200
5
4
4,390
Recently Sold
2656 4th St, Boulder, CO 80304
0.07
$5,850,000
6
5.5
4,814
Recently Sold
2449 5th St, Boulder, CO 80304
0.13
$2,651,475
5
4
3,549
Recently Sold
2621 3rd St, Boulder, CO 80304
0.11
$7,941,300
5
6
6,156
Off Market
527 Maxwell Ave, Boulder, CO 80304
0.12
$2,750,300
4
3.5
2,806
Off Market
405 Valley View Dr, Boulder, CO 80304
0.10
$1,810,000
3
2.5
1,937
Recently Sold
535 Dewey Ave, Boulder, CO 80304
0.10
$1,279,300
4
2
1,911
Off Market
508 Valley View Dr, Boulder, CO 80304
0.10
$1,351,700
3
3
2,918
Off Market

Local Information

  • Map ViewExplore the area around 434 Dewey Ave.
  • Schools1 Elementary School1 Middle School1 High School
  • Shop & Eat
-- mins to
Commute Destination

Home Highlights

Single-Family Home
Built in 2008
5,035 sqft
$733/sqft
2 Car Garage

About this House

This spectacular home is situated on a spacious 1/4 acre lot and offers amazing mountain views in the heart of the historic Mapleton Hill and Newlands neighborhoods! You will love the contemporary open floor plan incorporating the kitchen, family room and dining area all leading to a large covered deck which is perfect for outdoor entertaining. Features include beautiful hardwood flooring on the main level, updated baths, main floor study, and high end finishes throughout. The lower level is fully finished and includes two additional bedrooms, spacious rec/media room complete with a wet bar and a luxurious bath. Never park on the street again with a full two-car garage and three additional off-street parking spaces. Don't miss the fully appointed and furnished 1 bedroom, 1 bath ADU/studio located over the detached two car garage, perfect for guests or work from home office. A prized Boulder location and just minutes away from trails, open space and everything downtown has to offer!
434 Dewey Ave, Boulder, CO 80304 is a 5 bedroom, 4 bathroom, 5,035 sqft single-family home in Mapleton Hill, built in 2008. It last sold for $3,495,000 on Oct 27, 2023 (4% below the $3,650,000 asking price). More recently, it was listed as a rental in June 2014 with an asking price of $6,000 per month. That rental listing was removed on August 5, 2014. This property is not currently displayed as for sale or rent on Trulia. The Trulia Estimate is $3,691,900, with a rent estimate of $7,910/month.
Last check for updates: about 14 hours ago
Listed by Daryl Smith, (303) 818-0233
RE/MAX of Boulder, Inc
Bought with: Martin Anderson, (720) 839-5465, Compass-Denver
Source: IRES as distributed by MLS GRID, MLS#996130

Home Details for 434 Dewey Ave

Interior Features

Interior Details
Basement: Full,Partially FinishedNumber of Rooms: 12Types of Rooms: Primary Bedroom, Bedroom 2, Bedroom 3, Bedroom 4, Bedroom 5, Dining Room, Family Room, Kitchen, Laundry, Living Room, Recreation Room, StudyWet Bar
Beds & Baths
Number of Bedrooms: 5Number of Bathrooms: 4Number of Bathrooms (full): 2Number of Bathrooms (three quarters): 2Number of Bathrooms (main level): 1
Dimensions and Layout
Living Area: 5035 Square Feet
Appliances & Utilities
Utilities: Natural Gas Available, Electricity AvailableAppliances: Gas Range, Dishwasher, Refrigerator, Bar Fridge, Washer, Dryer, MicrowaveDishwasherDryerMicrowaveRefrigeratorWasher
Heating & Cooling
Heating: Forced AirHas HeatingHeating Fuel: Forced Air
Fireplace & Spa
Fireplace: Two or MoreHas a Fireplace
Gas & Electric
Electric: XcelGas: XcelHas Electric on Property
Windows, Doors, Floors & Walls
Window: Window Coverings, Storm Window(s)Flooring: Wood
Levels, Entrance, & Accessibility
Stories: 2Levels: TwoFloors: Wood
View
Has a ViewView: Hills, City

Exterior Features

Exterior Home Features
Roof: CompositionPatio / Porch: Patio, DeckFencing: FencedOther Structures: Carriage HouseExterior: Sprinkler System, BalconySprinkler System
Parking & Garage
Number of Garage Spaces: 2Number of Covered Spaces: 2Other Parking: AttachedNo CarportHas a GarageHas an Attached GarageParking Spaces: 2Parking: Garage Attached
Frontage
Not on Waterfront
Water & Sewer
Sewer: Public Sewer
Farm & Range
Does Not Include Irrigation Water Rights
Finished Area
Finished Area (above surface): 3331 Square Feet

Property Information

Year Built
Year Built: 2008
Property Type / Style
Property Type: ResidentialProperty Subtype: Single Family ResidenceArchitecture: Farmhouse,Contemporary
Building
Construction Materials: FrameNot a New ConstructionNot Attached Property
Property Information
Parcel Number: R0001021

Price & Status

Price
List Price: $3,650,000

Active Status

MLS Status: Sold

Location

Direction & Address
City: BoulderCommunity: Mountain Hights
School Information
Elementary School: FoothillJr High / Middle School: CaseyHigh School: BoulderHigh School District: Boulder Valley Dist RE2

Building

Building Area
Building Area: 3331 Square Feet

HOA

No HOA

Lot Information

Lot Area: 10426 sqft

Listing Info

Special Conditions: Private Owner

Energy

Energy Efficiency Features: Southern Exposure

Rental Terms, Policies & Fees

Are Units Furnished: Varies By Unit

Miscellaneous

BasementMls Number: 996130Attribution Contact: 303-818-0233Above Grade Unfinished Area: 3331Activation Date: Thu Sep 14 2023Showing Service Name: ShowingTime

Price and Tax history

DateEventPrice
Oct 27, 2023
Source: IRES as distributed by MLS GRID #996130
Sold
$3,495,000
Oct 10, 2023
Source: REcolorado as distributed by MLS GRID #IR996130
Pending
$3,650,000
Sep 14, 2023
Source: IRES as distributed by MLS GRID #996130
Listed For Sale
$3,650,000
Aug 10, 2023
Source: IRES as distributed by MLS GRID #987878
ListingRemoved
May 16, 2023
Source: IRES as distributed by MLS GRID #987878
Listed For Sale
$3,795,000

Market trends in Boulder

Last updated August 2026
Buyer'sMarketSeller'sMarket
Avg. sale price
$904K
$6.67KMoM
Sale-to-List Price
98.2%
0.2%MoM
Price per sq ft
$489
$10MoM
Available listings
765
3MoM

Around this home

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

LGBTQ Local Legal Protections

Based on information submitted to the MLS GRID as of 2026-09-14 00:48:32 PDT. All data is obtained from various sources and may not have been verified by broker or MLS GRID. Supplied Open House Information is subject to change without notice. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information. Some IDX listings have been excluded from this website. Click here for more information

Frequently asked questions about 434 Dewey Ave

  • What is 434 Dewey Ave estimated to be worth?
    Trulia's estimated value for 434 Dewey Ave in Boulder, CO is $3,691,900.
  • What is the price history for 434 Dewey Ave?
    434 Dewey Ave in Boulder, CO last sold for $3,495,000 in October 2023.
  • 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 $904K. That is up $6.67K from the prior month.
  • Does 434 Dewey Ave have laundry facilities?
    Yes, 434 Dewey Ave in Boulder, CO has in-unit laundry.
  • Does 434 Dewey Ave have a yard?
    Yes, 434 Dewey Ave in Boulder, CO has a yard.

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