Updated: Jan 30, 2026
Location and Projects
Address
P O BOX 1069, Downey, CA, 90240
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Core Construction LLC
Core Construction LLC, Downey, Po Box 1069, Downey, CA (Employees: Raul Echemendia and Raul Echemendia) holds a General Building license according to the California license board.
Their BuildZoom score of 94 ranks in the top 24% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Core Construction LLC, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Core Construction LLC Services
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Core Construction LLC Contact Information
Phone Number: (562) 477-5373
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Address: P O BOX 1069, Downey, CA 90240
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Building Permits by Core Construction LLC
This is a sample of this contractor's permits. Click here to access their complete permit history.
Revisions b202004682 - (2) metal posts to be placed in substitution of original wood posts
Valuation:
$2,500
Permit #:
B202205481
Status:
plancheck
Fee:
$798
Permit Type:
N/A
Building Type:
N/A
Demolish 8700 sqft. of 1rst floor in prep of future tenant improvement
Valuation:
N/A
Permit #:
BLD-17-00141
Status:
complete
Fee:
$469
Permit Type:
N/A
Building Type:
N/A
Polished nail salon: interior tenant improvement. - 1 053 sqft. work includes related electrical and plumbing
Valuation:
$57,915
Permit #:
BLD-17-00397
Status:
complete
Fee:
$2,755
Permit Type:
N/A
Building Type:
N/A
Install (1) temporary fence 3270 sqft. temp fence for 6 month period. no barbwire. must maintain 5 cut back by driveway
Valuation:
$12,263
Permit #:
BLD-17-00619
Status:
complete
Fee:
$343
Permit Type:
N/A
Building Type:
N/A
Job source - phase 1: interior tenant improvement - 1 421 sqft (suites 102 & 103) to remove & replace existing partion walls & remodel restrooms. work includes related electrical & plumbing. ***phase 2 to be under separate permit*** ***on 9/11/17 - adding (2) 125 amp sub panels.***
Valuation:
$78,155
Permit #:
BLD-17-01397
Status:
triage
Fee:
$3,216
Permit Type:
N/A
Building Type:
N/A
Phase 3: front façade remodel - adding new parapet; new front & rear glazing and new electrical
Valuation:
N/A
Permit #:
BLD-18-01369
Status:
expired
Fee:
$2,219
Permit Type:
N/A
Building Type:
N/A
Phase 2 glazing (5). addition structural beam. demolish 256 sqft of exterior wall
Valuation:
$1,280
Permit #:
BLD-17-01507
Status:
expired
Fee:
$924
Permit Type:
N/A
Building Type:
N/A
Demolish 8700 sqft of asphalt
Valuation:
$43,500
Permit #:
BLD-17-02217
Status:
complete
Fee:
$924
Permit Type:
N/A
Building Type:
N/A
Addition 2 lifht fixtures and exterior outlet. new water filter. infill exterior window. finish to match existing color
Valuation:
N/A
Permit #:
BLD-18-00645
Status:
complete
Fee:
$183
Permit Type:
N/A
Building Type:
N/A
Grading: cut 0 cy; fill 150; import 150 cy; export 0 cy
Valuation:
N/A
Permit #:
BLD-18-01255
Status:
expired
Fee:
$795
Permit Type:
N/A
Building Type:
N/A
New single family home 4500 sq. ft. with 245 sqft balcony garage 805 sqft with 987 sqft driveway and patio 1088 sqft
Valuation:
$700,949
Permit #:
BLD-18-01683
Status:
expired
Fee:
$22,381
Permit Type:
N/A
Building Type:
N/A
Phase 3: front façade remodel - adding new parapet; new front & rear glazing and new electrical
Valuation:
N/A
Permit #:
BLD-19-01014
Status:
expired
Fee:
$2,219
Permit Type:
N/A
Building Type:
N/A
Job source - phase 1: interior tenant improvement - 1 421 sqft (suites 102 & 103) to remove & replace existing partion walls & remodel restrooms. work includes related electrical & plumbing. ***phase 2 to be under separate permit*** ***on 9/11/17 - adding (2) 125 amp sub panels.***
Valuation:
N/A
Permit #:
BLD-19-01037
Status:
expired
Fee:
$314
Permit Type:
N/A
Building Type:
N/A
Phase 2 glazing (5). addition structural beam. demolish 256 sqft of exterior wall
Valuation:
N/A
Permit #:
BLD-19-01036
Status:
expired
Fee:
$314
Permit Type:
N/A
Building Type:
N/A
Demolish house 3090 with carport 194 sqft and garage 800 sqft
Valuation:
$27,853
Permit #:
BLD-19-01882
Status:
expired
Fee:
$839
Permit Type:
N/A
Building Type:
N/A
Relocate trash enclosure to allow for 2 additional parking spaces at rear wall re-stripe rear parking stalls and relocate (e) rear ada stall. construct new trash enclosure
Valuation:
N/A
Permit #:
BLD-20-01272
Status:
complete
Fee:
$386
Permit Type:
N/A
Building Type:
N/A
Single family dwelling or duplex residential - plumbing permits
2018-07-26
Residential plumbing permit - cap off sewer with dem18-00021
Valuation:
N/A
Permit #:
PLM18-00368
Status:
expired
Fee:
$145
Permit Type:
N/A
Building Type:
N/A
Residential demolish permit - 695 sq ft pool demolish
Valuation:
$1,091
Permit #:
DEM18-00022
Status:
expired
Fee:
$1,268
Permit Type:
N/A
Building Type:
N/A
Residential demolish permit - 2863 sq ft demolish single family dwelling with 540 sq ft garage - 4 bedrooms
Valuation:
$4,495
Permit #:
DEM18-00021
Status:
expired
Fee:
$4,672
Permit Type:
N/A
Building Type:
N/A
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Core Construction LLC License info
Verified License
| License # | 990781 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Ltd Liability |
- BuildZoom verified this license was active as of January 2026.
Verify this license's status for Core Construction LLC at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
94
BuildZoom Score
Insured
| Insurer | Scottsdale Insurance Company |
| Insured up to | $1,000,000 |
Bonded
| Bonded Agent | State Farm Fire & Casualty Company |
| Bond Value | $15,000 |
9
Permits
- Building permit records show that Core Construction LLC has worked on 9 permitted projects.
Core Construction LLC Employees
RE
Raul Echemendia
Rmm
RE
Raul Echemendia
Rmm