3520 Copper St, Boulder, CO 80304
OFF MARKET

3520 Copper St
Boulder, CO 80304

Catalpa Park
  • 4 Beds
  • 2 Baths
  • 1,716 sqft

$1,141,400

Trulia Estimate
as of Aug 9, 2026
Est. Refi. Payment $6,423/mo*
Refinance Your Home

$1,141,400

Trulia Estimate
as of Aug 9, 2026
Est. Refi. Payment $6,423/mo*
Refinance Your Home
4 Beds
2 Baths
1,716 sqft

Local Information

  • Map ViewExplore the area around 3520 Copper St.
  • Schools1 Elementary School1 Middle School1 High School
  • Shop & Eat
-- mins to
Commute Destination

Home Highlights

Property Type
Single-Family Home
Year Built
1969
Living Area
1,716 sqft
Price/Sqft
$665
Parking
Garage

About this House

Youll feel right at home the moment you walk in! Wonderful open floor plan w/light streaming in from all sides. Beautifully re-finished hardwood floors add warmth & character. Plenty of space for everyone w/4 large bedrooms + a wonderful light & bright office. Many updates include, new flooring, fresh paint, and newer windows, just move in & enjoy. Home is located on a quiet Cul-de-sac close to the foothills, trails, parks, the rec center and community gardens. Smile, Youre Home!
3520 Copper St, Boulder, CO 80304 is a 4 bedroom, 2 bathroom, 1,716 sqft single-family home in Catalpa Park, built in 1969. It last sold for $469,000 on Jul 6, 2012. It is currently off market. The Trulia Estimate is $1,141,400, with a rent estimate of $3,717/month.

Home Details for 3520 Copper St

Interior Features

Interior Details
BasementNumber of Rooms: 8
Heating & Cooling
Heating: RadiantHeating Fuel: Radiant
Levels, Entrance, & Accessibility
Stories: 2

Exterior Features

Exterior Home Features
Roof: AsphaltDeckExterior: Shingle, Wood
Parking & Garage
GarageParking: Garage Attached

Property Information

Year Built
Year Built: 1969Year Updated: 1985
Property Type / Style
Property Type: Single Family HomeArchitecture: split level

Community

Units in Building: 1

Lot Information

Lot Area: 7405 sqft

Price History for 3520 Copper St

DatePriceEventSource
07/06/2012$469,000Sold
IRES as distributed by MLS GRID #682279
05/26/2012$475,000Listed For SaleAgent Provided
02/16/2001$392,000Sold
N/A
01/23/1996$199,900Sold
N/A

Market trends in Boulder

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

Year2025
Tax$6,405
Assessment$1,146,300
Home facts updated by county records

Comparable Sales for 3520 Copper St

Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
3555 Cloverleaf Dr, Boulder, CO
0.06
Single-Family Home
$1,175,000
09/08/25
4
2
1,749
3505 19th St, Boulder, CO
0.16
Single-Family Home
$795,000
06/22/26
4
2
2,342
1720 Linden Ave, Boulder, CO
0.17
Single-Family Home
$1,411,755
05/08/26
4
2
1,687
1615 Kalmia Ave, Boulder, CO
0.07
Single-Family Home
$1,295,000
08/15/25
3
2
1,901
3660 16th St, Boulder, CO
0.15
Single-Family Home
$1,176,000
03/16/26
4
3
2,054
3635 Buckeye Ct, Boulder, CO
0.24
Single-Family Home
$1,300,000
10/17/25
3
2
2,047
3625 Buckeye Ct, Boulder, CO
0.23
Single-Family Home
$1,150,000
07/20/26
4
3
1,204
3545 Cloverleaf Dr, Boulder, CO
0.05
Single-Family Home
$930,000
08/13/25
3
1
1,028
1305 Linden Ave, Boulder, CO
0.30
Single-Family Home
$1,295,000
07/15/26
3
3
1,844
1805 Forest Ave, Boulder, CO
0.40
Single-Family Home
$1,250,000
04/14/26
4
2.5
1,936

Nearby homes

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Assigned Schools

These are the assigned schools for 3520 Copper St.
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

Catalpa Park
See Local Highlights
Neighborhood stats provided by third party data sources.

What Locals Say about Catalpa Park

At least 5 Trulia users voted on each feature.

  • 100 % Say it's walkable to grocery stores

  • 100 % Say it's dog friendly

  • 100 % Say people would walk alone at night

  • 89 % Say parking is easy

  • 88 % Say it's walkable to restaurants

  • 88 % Say there's wildlife

  • 86 % Say it's quiet

  • 80 % Say there's holiday spirit

  • 80 % Say kids play outside

  • 71 % Say they plan to stay for at least 5 years

  • 68 % Say neighbors are friendly

  • 63 % Say streets are well-lit

  • 63 % Say yards are well-kept

  • 50 % Say car is needed

  • 50 % Say there are sidewalks

  • 38 % Say there are community events

Sourced by Trulia users. Learn more about our methodology.
  • Trulia User
    "I work in Berthod Colorado, which is a thirty minute commute. The views are stunning. So much of the great outdoors are preserved here. It’s truly magical. At the same time, there is a bus stop right next to my house that would be handy if I worked in town in Boulder. "
    0
    Flag
  • Travelers2
    "It is "old North Boulder" and a very nice mix of city and village. Lots of variety of homes, transportation, bike paths, close to everything, don't need a car."
    3
    Flag

LGBTQ Local Legal Protections

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Homes for sale near 3520 Copper St

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Off Market Homes Near 3520 Copper St

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Frequently asked questions about 3520 Copper St

  • What is 3520 Copper St estimated to be worth?
    Trulia's estimated value for 3520 Copper St in Boulder, CO is $1,141,400.
  • What is the price history for 3520 Copper St?
    3520 Copper St in Boulder, CO last sold for $469,000 in July 2012.
  • 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.
  • How big is the lot at 3520 Copper St?
    The lot at 3520 Copper St in Boulder, CO is about 0.17 acres (7,261 sq ft).
  • Does 3520 Copper St have a garage?
    Yes, 3520 Copper St in Boulder, CO has a garage.