403 Mapleton Ave Boulder, CO 80304 / 3984

Map

Residence for Single Family

(UPDATED: 07/10/2025)
  • 3 Beds
  • 2 Baths
  • 3.254 square feet
Property Report

Information about property on 403 Mapleton Ave, Boulder CO, 80304-3984. Find out owner contacts, building history, price, neighborhood at Homemetry Address Directory.

Property Details

A spacious single-family possession at 403 Mapleton Ave, Boulder, CO.

Facts

  • Built in 1917
  • Lot size 6,273 sqft
  • Floor size 3,254 sqft
  • Construction Masonry
  • Rooms 8
  • Bedrooms 3
  • Bathrooms 2
  • Last remodel year 1980
  • Basement Basement (not specified)
  • Air conditioning Central
  • Heating & Cooling
  • Heat type Forced air unit
  • Exterior Home Features
  • Exterior material Cement concrete
  • Exterior walls Brick
  • Roof type Asphalt
  • Parking & Garage
  • Parking Attached Garage
  • Parking spaces 1

Listing info

  • Last sold Jul 2011 for $827,000

Householders and Tenants for 403 Mapleton Ave, Boulder CO

Possible residents contact details

Person Name Phone Number Additional Info
Inge G Knox Age: 103
303-449-****
Kevin R Lambert Age: 52
303-494-****
Residential status:
Homeowner
Kristin E Knox
303-449-****
M J Garden Age: 72
Noriko N Knox Age: 74
303-449-****
Peter E Knox Age: 70
303-449-****

Possible Businesses

Organization Phone Number Additional Info
Img Properties Inc
Industry:
Nonresidential Building Operator

Purchase History

DateEventPriceSourceAgents
07/11/2011 Sold $827,000 Public records

Cost estimate history

YearTaxAssessmentMarket
2014 N/A $66,856 N/A
2013 $5,621 N/A $839,900

Where is 403 Mapleton Ave, Boulder CO located on map?

Mapleton Ave Fire Incident History

To date, we have no information about fire incidents in 2025
13 Apr 2017 Passenger vehicle fire
311 Mapleton Ave, Boulder CO
Property Use —
Mercantile, business, other
Area of Origin —
Engine area, running gear, wheel area
23 Jun 2014 Building fires
2120 Mapleton Ave, Boulder CO
Property Use —
1 or 2 family dwelling
Area of Origin —
Conduit, pipe, utility, or ventilation shaft
First Ignition —
Item First Ignited, Other
Heat Source —
Lightning
27 May 2013 Fire in mobile home used as fixed residence
2635 Mapleton Ave, Boulder CO
Property Use —
1 or 2 family dwelling
Area of Origin —
Courtyard, patio, porch, terrace
28 Oct 2011 Building fires
1521 Mapleton Ave, Boulder CO
Property Use —
1 or 2 family dwelling
Area of Origin —
Vehicle storage area; garage, carport

View more

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

To date, we have no information about incidents registered in FEMA in 2025
08 May 2015 Power line down
330 Mapleton Ave, Boulder CO
Property Use —
1 or 2 family dwelling
06 May 2015 Gas leak (natural gas or LPG)
1317 Mapleton Ave, Boulder CO
Property Use —
Elementary school, including kindergarten
16 Feb 2015 Unauthorized burning
2056 Mapleton Ave, Boulder CO
Property Use —
1 or 2 family dwelling
15 Feb 2015 Carbon monoxide incident
2420 Mapleton Ave, Boulder CO
Property Use —
1 or 2 family dwelling

View more

Properties Nearby

Street AddressResidens/Landlords
312 Mapleton Ave, Boulder, CO 80304-3978
Single Family Residential
  • 3 beds
  • 2 baths
  • 2,086 sqft
  • Built in 1952
 Bigrock LLC, Dakota Ridge Partnership
320 Mapleton Ave, Boulder, CO 80304-3978
Single Family Residential
  • 3 beds
  • 2 baths
  • 1,300 sqft
  • Built in 2012
 Community Real Estate Solution, School Of Natural Medicine
328 Mapleton Ave, Boulder, CO 80304-3978
Single Family Residential
  • 4 beds
  • 2 baths
  • 643 sqft
  • Built in 1922
 Julie Ashley, Faith R Baldwin
400 Mapleton Ave, Boulder, CO 80304-3983
Single Family Residential
  • 5 beds
  • 1 bath
  • 4,033 sqft
  • Built in 1905
 Buffalo Academy, Christopher Ash
417 Mapleton Ave, Boulder, CO 80304-3985
High Rise
  • 1 bed
  • 1 bath
  • Lot: 1,207 sqft
 Kilbury Clinical Consulting LLC, Jordan Austin
421 Mapleton Ave, Boulder, CO 80304-3984
High Rise
    		 Julie L Annear, Lauren Beal
    425 Mapleton Ave, Boulder, CO 80304-3984
    High Rise
    • 1 bath
    • Lot: 607 sqft
    		 Holly E Bretschneider, Dion Rene Bundy
    429 Mapleton Ave, Boulder, CO 80304-3984
    High Rise
      		 Cole Blair, Glen Boggio
      433 Mapleton Ave, Boulder, CO 80304-3984
      High Rise
        		 L Bader, James Camp Cauthorn

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