Updated: May 30, 2026
Location and Projects
Address
484 N Prospect St, Porterville, CA, 93257
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Centerline Design and Engineering Photos
Centerline Design and Engineering Architect
Centerline Design and Engineering will continue to provide accurate, timely and cost-effective design solutions for residential, commercial, industrial, and agricultural construction projects. Owners Logan Couch and Dennis Townsend have made a commitment to serve the Central Valley for the betterment of sustainable and economic development. Centerline Design and Engineering looks forward to continued relationships with all past and current clients that Townsend Architectural Group has served for so many years. Please do not hesitate to contact Centerline Design and Engineering for any design or engineering needs.
From BuildZoom: Centerline Design and Engineering, 484 N Prospect St, Porterville, CA (Owned by: Greg James Iler) holds a General Building license and 3 other licenses according to the California license board.
Their BuildZoom score of 112 ranks in the top 3% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Centerline Design and Engineering, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Centerline Design and Engineering Services
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Centerline Design and Engineering Contact Information
Phone Number: (559) 789-9999
Address: 484 N Prospect St, Porterville, CA 93257
Centerline Design and Engineering Porterville
Quality
112
97th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Centerline Design and Engineering has a BuildZoom score of 112, which places them above 97% of 336,931 contractors in California.
Activity
|
1 project
|
2025 |
|
11 projects
|
2024 |
|
24 projects
|
2023 |
Our building permit records indicate that Centerline Design and Engineering has worked on at least
36.0 projects over the past 3 years.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
Experience
|
14 projects
|
Commercial Renovations |
|
3 projects
|
New Constructions |
Analyzing permits over the last 4 years shows that Centerline Design and Engineering mostly works on
commercial renovation
and new construction
projects.
Pricing
|
1 project
|
$5k-$20k |
|
1 project
|
$20k-$50k |
|
2 projects
|
$500k-$1mil |
|
2 projects
|
$1mil+ |
Pro tip:
For more details about their pricing, check out their recent activity to see how much they have charged for different types of work.
Building Permits by Centerline Design and Engineering
This is a sample of this contractor's permits. Click here to access their complete permit history.
Scope of work will consist of constructing a new ground-up concession stand building (consisting of multiple accommodation restrooms ticket sales and concessions sales area). there will not be any commercial kitchen equipment installed or used within the new concessions stand building. all food will be sold as pre-packaged food. this development will also include the demolition of the... see more
Valuation:
N/A
Permit #:
AD24-01145
Status:
approved
Fee:
$125
Permit Type:
N/A
Building Type:
N/A
Will consist of constructing a new ground-up field house (new team locker room). all other site and other improvements are submitted under separate permit and application. all new structures and site improvements are ancillary structures/improvements to the already existing athletic complex
Valuation:
N/A
Permit #:
AD24-01144
Status:
approved
Fee:
$125
Permit Type:
N/A
Building Type:
N/A
Electrical addendum to approved plans b22-16810. original plans call for the existing electrical switchboard to be removed and for a new electrical switchboard to be installed. addendum plans now call for the original electrical switchboard to remain. sheets e-1.0 e-2.0 and e-2.1 have been revised to reflect this change. additionally the address was corrected on all sheets from 7075 n... see more
Valuation:
N/A
Permit #:
AD24-01142
Status:
approved
Fee:
$376
Permit Type:
N/A
Building Type:
N/A
Will consist of constructing a new ground-up field house (new team locker room). all other site and other improvements are submitted under separate permit and application. all new structures and site improvements are ancillary structures/improvements to the already existing athletic complex
Valuation:
N/A
Permit #:
AD24-00962
Status:
triage
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Scope of work will consist of constructing a new ground-up concession stand building (consisting of multiple accommodation restrooms ticket sales and concessions sales area). there will not be any commercial kitchen equipment installed or used within the new concessions stand building. all food will be sold as pre-packaged food. this development will also include the demolition of the... see more
Valuation:
N/A
Permit #:
AD24-00916
Status:
triage
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Landlord is submitting a voluntary site improvement plan for review and approval. the scope of work is to addition three solar structures and to updated two handicap stalls under one of the solar structures to meet current accessibility requirements
Valuation:
N/A
Permit #:
AD24-00895
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Landlord is submitting landlord lease exhibit requirement upgrades to this space for permits. suite #140 on the first floor will be separated into 3 separate suites (suite #140 #160 #180). there is no occupancy required for this plan submittal. the tenant will be submitting separate occupancy plans under separate plan check submittal
Valuation:
N/A
Permit #:
AD24-00827
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Tenant is submitting a complete set of site development plans for review and approval. the proposed project will consist of the existing vacant lot north of the existing club one casino being voluntarily developed into an additional parking lot for the entire granite park area and future building that will be submitted under a separate development permit. the additional parking stalls... see more
Valuation:
$250,000
Permit #:
B24-01981
Status:
triage
Fee:
$313
Permit Type:
N/A
Building Type:
N/A
Owner is submitting a complete set of tenant improvement plans for review and approval. the scope of work is to remodel the existing break room as shown on the plans. this break room is used for church purposes only it is not used for the public
Valuation:
N/A
Permit #:
AD24-00690
Status:
triage
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Owner is submitting a complete set of tenant improvement plans for review and approval. the scope of work is to remodel the existing break room as shown on the plans. this break room is used for church purposes only it is not used for the public
Valuation:
N/A
Permit #:
AD24-00369
Status:
triage
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Tenant is submitting a complete set of tenant improvement plans for review and approval. current portion of the proposed space is vacant. proposed use will serve as an expansion for the current club one casino. original record b23-16228
Valuation:
N/A
Permit #:
AD24-01004
Status:
triage
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Tenant is submitting a complete set of tenant improvement plans for review and approval. current portion of the proposed space is vacant. proposed use will serve as an expansion for the current club one casino original record b23-16228
Valuation:
N/A
Permit #:
AD24-00685
Status:
triage
Fee:
$250
Permit Type:
N/A
Building Type:
N/A
The scope of work is to construct (3) three carports within the existing parking field and to modify the cross walk striping to accommodate a new van accessible parking stall within one of the carports for equal facilitations
Valuation:
N/A
Permit #:
B22-17528
Status:
issued
Fee:
$3,907
Permit Type:
N/A
Building Type:
N/A
Tenant is submitting a complete set of tenant improvement plans for review and approval. current portion of the proposed space is vacant. proposed use will serve as an expansion for the current club one casino
Valuation:
N/A
Permit #:
AD24-01394
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Scope of work consists of remodel of existing booth seating platforms and replacing with new booth seating platforms. interior scope of work only. no plumbing mechanical or electrical is being preformed
Valuation:
$10,000
Permit #:
B24-02950
Status:
issued
Fee:
$7,174
Permit Type:
N/A
Building Type:
N/A
Mechanical addendum plans for b23-09081. the oven exhaust duct is changing from an existing 14 square duct to a new 10 diameter duct. the mechanical inspector requested addendum plans for this change
Valuation:
N/A
Permit #:
AD24-00098
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Mechanical addendum plans for b23-09081. the oven exhaust duct is changing from an existing 14 square duct to a new 10 diameter duct. the mechanical inspector requested addendum plans for this change see sheet m001 detail #2 has been revised to reflect this change. see sheet m200 keynote #9 has been revised to reflect this change
Valuation:
N/A
Permit #:
AD23-07540
Status:
triage
Fee:
$125
Permit Type:
N/A
Building Type:
N/A
Landlord is submitting landlord lease exhibit requirement upgrades to this space for permits. suite #140 on the first floor will be separated into 3 separate suites (suite #140 #160 #180). there is no occupancy required for this plan submittal. the tenant will be submitting separate occupancy plans under separate plan check submittal
Valuation:
N/A
Permit #:
B23-17672
Status:
issued
Fee:
$6,312
Permit Type:
N/A
Building Type:
N/A
Will consist of constructing a new ground-up field house (new team locker room). all other site and other improvements are submitted under separate permit and application. all new structures and site improvements are ancillary structures/improvements to the already existing athletic complex
Valuation:
N/A
Permit #:
AD23-07503
Status:
triage
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Landlord is submitting landlord lease exhibit requirement upgrades to this space for permits. there is no occupancy required for this plan submittal. the tenant will be submitting separate occupancy plans under separate plan check submittal original permit #: b23-15450
Valuation:
N/A
Permit #:
AD23-07373
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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Verified License
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Centerline Design and Engineering License info
Verified License
| License # | 1133804 |
| Status | Active |
| State | California |
| Type | General Building |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Centerline Design and Engineering at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 932705 |
| Status | Active |
| State | California |
| Type | General Building |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Centerline Design and Engineering at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | C90046 |
| Status | Active |
| State | California |
| Type | CIVIL ENGINEER |
- When BuildZoom last verified this license, it had an expiration date of June, 2025. Check the current license status of Centerline Design and Engineering with the California Contractors State License Board
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | C 24088 |
| Status | Active |
| State | California |
| Type | Architect License |
- When BuildZoom last verified this license, it had an expiration date of September, 2025. Check the current license status of Centerline Design and Engineering with the California Architect License Board
This is a sample of licensing data; click here to access a complete history.
112
BuildZoom Score
Bonded
| Bonded Agent | American Contractors Indemnity Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | State Compensation Insurance Fund |
127
Permits
- Building permit records show that Centerline Design and Engineering has worked on 127 permitted projects.
Centerline Design and Engineering Employees
DN
Dennis Townsend, A.I.A. / Ncarb
Architect
GI
Greg James Iler
Owner
LM
Logan Couch, P.E., M Sc, M.Asce
Civil Engineer
MT
Mike Taylor
Senior Project Manager