Updated: May 02, 2026
Location and Projects
Address
428 W OLIVE AVE, Monrovia, CA, 91016
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John W Allen Construction
Serving Monrovia, CA, and the surrounding areas, John W Allen brings over three decades of residential construction experience. With 34 years in business, his expertise covers a variety of home improvement and remodeling projects. John W Allen specializes in working directly with homeowners, providing tailored solutions for property upgrades and repairs. Typical project types include additions, renovations, and general handyman services for single-family homes. His long-standing presence in the community reflects a sustained commitment to delivering residential construction services in Monrovia and neighboring neighborhoods. Clients can expect knowledgeable guidance based on extensive hands-on experience with local building requirements and project planning.
John W Allen Services
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John W Allen Contact Information
Phone Number: (626) 215-4043
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Address: 428 W OLIVE AVE, Monrovia, CA 91016
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This is a sample of this contractor's permits. Click here to access their complete permit history.
280sq ft city standard patio cover * (6) recessed lighting *
Valuation:
N/A
Permit #:
B24-04229
Status:
final
Fee:
N/A
Permit Type:
Patio-solid
Building Type:
N/A
Plumbing repipe copper material. replace 6 feet of line. replace 2 fixtures
Valuation:
N/A
Permit #:
22-4537
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Addition 2 bedrooms 1 bathroom/att patio cover 880/130 sq ft demolish unpermitted addition relocate laundry room to converted bedroom
Valuation:
$120,000
Permit #:
1704040025
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Const. chg. to project 516127 approval 1808526 delta 2. addition individual roof decks to each unit
Valuation:
N/A
Permit #:
2083878
Status:
issued
Fee:
$1,359
Permit Type:
N/A
Building Type:
N/A
Replace septic tank and addition new leach field
Valuation:
N/A
Permit #:
1708090001
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
960sf detached garage
Valuation:
$21,216
Permit #:
B18-00959
Status:
APPLIED
Fee:
$1,015
Permit Type:
N/A
Building Type:
N/A
Mechanical for addition
Valuation:
N/A
Permit #:
1708090007
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Electric for addition
Valuation:
N/A
Permit #:
1708090009
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Plumbing for addition
Valuation:
N/A
Permit #:
1708090004
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Greater north park- building electrical mechanical plumbing permits for (4) new 3 story apartments attached. work to also include landscape hardscape garages on the first level trash enclosure deck on second and third level all new plumbing mechanical electrical.mccpd-mr-1750, rs-1-7 geo haz 52 concurrent processing # 465625 ndp cleared from historic from project 336274
Valuation:
N/A
Permit #:
1808529
Status:
issued
Fee:
$71,020
Permit Type:
Three or four fam...
Building Type:
N/A
Greater north park- building electrical mechanical plumbing permits for (4) new 3 story apartments attached. work to also include landscape hardscape garages on the first level trash enclosure deck on second and third level all new plumbing mechanical electrical.mccpd-mr-1750, rs-1-7 geo haz 52 concurrent processing # 465625 ndp cleared from historic from project 336274
Valuation:
N/A
Permit #:
1808528
Status:
issued
Fee:
$71,020
Permit Type:
Three or four fam...
Building Type:
N/A
Construction change to project 602288 building 1 approval # 2123074 building 2 approval # 2123080 to relocate 3 riser serving building 1 carport show detail at drop ceiling at carport area with draftstops
Valuation:
N/A
Permit #:
2272671
Status:
issued
Fee:
$203
Permit Type:
N/A
Building Type:
N/A
Demolish ex single family residence & abandon septic tank
Valuation:
$0
Permit #:
K201402754
Status:
Finaled
Fee:
$37
Permit Type:
N/A
Building Type:
N/A
Const chg to 489986 approvals 1716123 1716155. adding irrigation flow to exisiting water meter. delta 8
Valuation:
N/A
Permit #:
2177942
Status:
issued
Fee:
$170
Permit Type:
N/A
Building Type:
N/A
Area i 2 agg pump elect feeds to meter bases
Valuation:
$1,200
Permit #:
MIS2006-06289
Status:
Finaled
Fee:
$99
Permit Type:
N/A
Building Type:
N/A
Plumbing work for remodeling/kitchen/laundry room
Valuation:
N/A
Permit #:
99-00711
Status:
final
Fee:
N/A
Permit Type:
plumbing permit
Building Type:
N/A
Re-pipe 2nd sty. w/copper pipes + lavatory
Valuation:
N/A
Permit #:
98-03927
Status:
final
Fee:
N/A
Permit Type:
plumbing permit
Building Type:
N/A
Replace domestic water on skid at roof level
Valuation:
N/A
Permit #:
2010-45097-00
Status:
final
Fee:
$381
Permit Type:
N/A
Building Type:
N/A
Replace domestic water on skid at roof level
Valuation:
N/A
Permit #:
2010-45096-00
Status:
final
Fee:
$381
Permit Type:
N/A
Building Type:
N/A
Addition of a window in bathroom
Valuation:
$0
Permit #:
00016843-RRA
Status:
pending
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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John W Allen License info
Verified License
| License # | 641272 |
| Status | Active |
| State | California |
| Type | Plumbing |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for John W Allen at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
98
BuildZoom Score
Bonded
| Bonded Agent | Hudson Insurance Company |
| Bond Value | $15,000 |
16
Permits
- Building permit records show that John W Allen has worked on 16 permitted projects.
John W Allen Employees
JA
John William Allen
Owner