Updated: Oct 28, 2025
Location and Projects
Address
12219 MONROE DR, Thornton, CO, 80241
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J Gannon Construction
J Gannon Construction at 12219 MONROE DR, Thornton, CO 80241, held a General Contractor license (#C110156) with the Douglas County contractors license board with an expiration date of 05-04-2012. We last verified the license was inactive on 10-27-2025.
Their BuildZoom score is 0 because we haven’t been able to verify an active license. As a result, they’re not ranked in the top 50% of 55,949 Colorado contractors.
If you’re thinking about hiring them, we recommend double-checking their license status with your local licensing authority. Alternatively, use our project planner to be easily matched to qualified, licensed professionals in your area.
J Gannon Construction Services
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J Gannon Construction Contact Information
Phone Number: (720) 281-5147
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Address: 12219 MONROE DR, Thornton, CO 80241
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Building Permits by J Gannon Construction
This is a sample of this contractor's permits. Click here to access their complete permit history.
Basement finish
Valuation:
$53,000
Permit #:
RES22-00269
Status:
applied
Fee:
$1,975
Permit Type:
N/A
Building Type:
N/A
19x40 covered patio
Valuation:
N/A
Permit #:
RADD24-00063
Status:
issued
Fee:
$1,753
Permit Type:
Patio cover
Building Type:
N/A
Basement finish 2 bedroom bathroom
Valuation:
$55,000
Permit #:
RES21-01014
Status:
plancheck
Fee:
$2,112
Permit Type:
N/A
Building Type:
N/A
Open up walls to the existing enclosed rear porch to original state of an open patio install egress window in basement other landmark log #2013l00048- egress window
Valuation:
N/A
Permit #:
2013-COA-0000049
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
570sq.ft.w/family room storage hallway
Valuation:
$17,125
Permit #:
11-68623
Status:
final
Fee:
$505
Permit Type:
N/A
Building Type:
N/A
Hail damage reroof single family dwelling
Valuation:
N/A
Permit #:
RRF102067
Status:
final
Fee:
$386
Permit Type:
Roofing
Building Type:
N/A
New detached garage with alley access. bmt
Valuation:
N/A
Permit #:
2011-ZONE-0265937
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New detached garage with alley access. bmt
Valuation:
N/A
Permit #:
2011-ZONE-0265936
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
2014r00030 - 2690 s shermans st. & 221 e yale ave. - new duplex w/detached garage 8/7/14: issued shoring permit. dcm
Valuation:
$290,000
Permit #:
2014-LOG-R000030
Status:
approved
Fee:
$1,933
Permit Type:
N/A
Building Type:
N/A
Rs - residential
Valuation:
$4,000
Permit #:
11-02042
Status:
complete
Fee:
$180
Permit Type:
Alteration
Building Type:
Residential
New building detached garage
Valuation:
N/A
Permit #:
2011-ROOFSIDE-0056436003
Status:
approved
Fee:
$35
Permit Type:
N/A
Building Type:
N/A
New building detached garage
Valuation:
N/A
Permit #:
2011-ROOFSIDE-0056435003
Status:
approved
Fee:
$35
Permit Type:
N/A
Building Type:
N/A
Habitable sqft
Valuation:
$6,300
Permit #:
16103320 00000BP
Status:
complete
Fee:
N/A
Permit Type:
Additions remodel...
Building Type:
N/A
2013r00850 - 1831 & 1833 vine st. - new duplex w/detached garage
Valuation:
$105,000
Permit #:
2013-LOG-R000850
Status:
approved
Fee:
$1,301
Permit Type:
N/A
Building Type:
N/A
Hail damaged reroof for single family dwelling
Valuation:
N/A
Permit #:
RRF102630
Status:
final
Fee:
N/A
Permit Type:
Roofing
Building Type:
N/A
New building detached garage
Valuation:
N/A
Permit #:
2011-LOG-J003576
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New building detached garage
Valuation:
N/A
Permit #:
2011-LOG-J003575
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New building detached garage
Valuation:
N/A
Permit #:
2011-RESCON-0056435013
Status:
approved
Fee:
$207
Permit Type:
N/A
Building Type:
N/A
New building detached garage
Valuation:
N/A
Permit #:
2011-RESCON-0056436013
Status:
approved
Fee:
$207
Permit Type:
N/A
Building Type:
N/A
Alterations/tenant finish main floor interior remodel
Valuation:
N/A
Permit #:
2014-LOG-J001752
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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J Gannon Construction License info
Inactive License
| License # | C110156 |
| Status | Inactive |
| County | Douglas County |
| Type | General C |
- According to the Douglas County Building Division, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for J Gannon Construction at the Douglas County Building Division.
This is a sample of licensing data; click here to access a complete history.
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BuildZoom Score
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- *No active license on file. If you are J Gannon Construction, click “This is My Business” to update your information.
36
Permits
- Building permit records show that J Gannon Construction has worked on 36 permitted projects.
J Gannon Construction Employees
JG
Jason A Gannon
Owner