521 Arapahoe Ave Boulder, CO 80302 / 5826

Residence for Single Family

(UPDATED: 08/03/2025)
  • 4 Beds
  • 2 Baths
  • 0.27 acres
Property Report

Information about property on 521 Arapahoe Ave, Boulder CO, 80302-5826. Find out owner contacts, building history, price, neighborhood at Homemetry Address Directory.

Property Details

A single-family possession at 521 Arapahoe Avenue, Boulder, Colorado.

Facts

  • Built in 1901
  • Lot size 0,27 acres
  • Construction Masonry
  • Rooms 8
  • Bedrooms 4
  • Last remodel year 1980
  • Basement Unfinished Basement
  • Heating & Cooling
  • Heat type Forced air unit
  • Exterior Home Features
  • Exterior material Cement concrete
  • Exterior walls Brick
  • Roof type Asphalt
  • Parking & Garage
  • Parking Detached Garage
  • Parking spaces 2

Listing info

  • Last sold Jun 1994 for $290,800

Householders and Tenants for 521 Arapahoe Ave, Boulder CO

Possible residents contact details

Person Name Phone Number Additional Info
Adeline M Sweeney Age: 31
303-250-****
Residential status:
Homeowner
Christophe J Sweeney Age: 66
303-443-****
Christopher J Sweeney Age: 66
303-443-****
Residential status:
Homeowner
Elizabeth C Albertson Age: 98
303-746-****
Nina E Coleman Age: 71
303-443-****
Nini Cole
303-443-****
Nini E Coleman Age: 71
303-443-****
Residential status:
Homeowner
Sophia C Sweeney Age: 34
303-250-****
Residential status:
Homeowner

Businesses

Organization Phone Number Additional Info
Ding Dang Design
Industry:
Business Services

Purchase History

DateEventPriceSourceAgents
06/09/1994 Sold $290,750 Public records

Cost estimate history

YearTaxAssessmentMarket
2014 N/A $113,828 N/A
2013 $9,571 N/A $1,430,000

Where is 521 Arapahoe Ave, Boulder CO located on map?

Arapahoe Ave Fire Incident History

To date, we have no information about fire incidents in 2025
06 Sep 2019 Building fires
Property Use —
Hotel/motel, commercial
Area of Origin —
Closet
First Ignition —
Box, carton, bag, basket, barrel
Heat Source —
Radiated, conducted heat from operating equipment
05 Sep 2019 Natural vegetation fire, other
Property Use —
Hospital - medical or psychiatric
Area of Origin —
Courtyard, patio, porch, terrace
First Ignition —
Light vegetation - not crop, including grass
Heat Source —
Cigarette
25 Aug 2019 Natural vegetation fire, other
Property Use —
Restaurant or cafeteria
Area of Origin —
Outside area, other
First Ignition —
Light vegetation - not crop, including grass
24 Jul 2019 Natural vegetation fire, other
Property Use —
Graded and cared-for plots of land
Area of Origin —
Outside area, other
First Ignition —
Item First Ignited, Other
Heat Source —
Cigarette

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521 Arapahoe Ave incidents registered in FEMA
(Federal Emergency Management Agency)

To date, we have no information about incidents registered in FEMA in 2025
24 Jul 2009 Cooking fire, confined to container
Property Use —
1 or 2 family dwelling

Arapahoe Ave Incidents registered in FEMA
(Federal Emergency Management Agency)

To date, we have no information about incidents registered in FEMA in 2025
25 Dec 2015 Gas leak (natural gas or LPG)
Property Use —
Multifamily dwellings
07 Dec 2015 Gas leak (natural gas or LPG)
Property Use —
1 or 2 family dwelling
06 Dec 2015 Dumpster or other outside trash receptacle fire
Property Use —
Street, other
30 Nov 2015 Gas leak (natural gas or LPG)

View more

Properties Nearby

Street AddressResidens/Landlords
474 Arapahoe Ave, Boulder, CO 80302-5825
Single Family Residential
  • 4 beds
  • 3 baths
  • 4,073 sqft
  • Built in 2003
Acqualina LLC, One School at A Time
479 Arapahoe Ave, Boulder, CO 80302-5824
Unspecified
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  • 2 baths
  • 1,750 sqft
  • Built in 1908
Downey, David, Melinda Wynne Bywaters
485 Arapahoe Ave, Boulder, CO 80302-5824
Single Family Residential
  • 4 beds
  • 2 baths
  • 2,505 sqft
  • Built in 1905
Inflatable Adventures Inc, Recreation Engineering & Plann
495 Arapahoe Ave, Boulder, CO 80302-5824
Single Family Residential
  • 5 beds
  • 4 baths
  • 4,050 sqft
  • Built in 2007
John S Kang, Millicent M Kang
515 Arapahoe Ave, Boulder, CO 80302-5826
Single Family Residential
  • 6 beds
  • 3 baths
  • 6,399 sqft
  • Built in 1993
Gary L Carlston, Nancy M Carlston
531 Arapahoe Ave, Boulder, CO 80302-5826
Single Family Residential
  • 3 beds
  • 2 baths
  • 2,924 sqft
  • Built in 1900
Curtis Chong, Gina C Crago
541 Arapahoe Ave, Boulder, CO 80302-5826
Unspecified
  • 4 beds
  • 2 baths
  • 3,348 sqft
  • Built in 1920
Noisy Cloud, Organizational Policy Institute, Dissolved December 3, 2009
542 Arapahoe Ave, Boulder, CO 80302-5827
Single Family Residential
  • 3 beds
  • 1 bath
  • 3,026 sqft
  • Built in 1915
Arthur Bierman, Mark Bierman
549 Arapahoe Ave, Boulder, CO 80302-5826
Single Family Residential
  • 2 beds
  • 1 bath
  • Lot: 0.28 acres
  • Built in 1910
Steven D Allen, Ellen M Kalal
552 Arapahoe Ave, Boulder, CO 80302-5827
Single Family Residential
  • 3 beds
  • 1 bath
  • Lot: 8,625 sqft
  • Built in 1910
Lencora LLC, Pavel's Personal Care LLC
 

FAQ about the house at 521 Arapahoe Ave, Boulder, CO


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