Updated: Apr 26, 2026
Location and Projects
Address
1610 DELL AVE UNIT A, Campbell, CA, 95008
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Duplan Construction Architect
Duplan Construction, 1610 Dell Ave, Campbell, CA (Employees: Donald Thomas Sherrin and Merrick Edward Duplan) holds a Plumbing, General Building, Drywall license and 2 other licenses according to the California license board.
Their BuildZoom score of 108 ranks in the top 5% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Duplan Construction, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Duplan Construction Services
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Duplan Construction Contact Information
Phone Number: (408) 866-6682
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Address: 1610 DELL AVE UNIT A, Campbell, CA 95008
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Duplan Construction Campbell
Quality
108
95th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Duplan Construction has a BuildZoom score of 108, which places them above 95% of 336,931 contractors in California.
Activity
|
10 projects
|
2025 |
|
5 projects
|
2024 |
|
5 projects
|
2023 |
Our building permit records indicate that Duplan Construction has worked on at least
20.0 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
|
6 projects
|
Commercial Renovations |
Analyzing permits over the last 4 years shows that Duplan Construction mostly works on
commercial renovation
projects.
Pricing
|
4 projects
|
$5k-$20k |
|
1 project
|
$20k-$50k |
|
5 projects
|
$50k-$100k |
|
5 projects
|
$100k-$250k |
|
1 project
|
$250k-$500k |
|
1 project
|
$500k-$1mil |
|
3 projects
|
$1mil+ |
The typical size of their permits is approximately $100,000. This graph shows the distribution of these job values.
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.
This is a sample of this contractor's permits. Click here to access their complete permit history.
Deferred submittal for flood proofing----the project consists of interior improvements in an existing 1-story building for enphase. the scope of work includes demolition new walls doors & finishes as well as structural mechanical electrical and plumbing work to support the new layout
Valuation:
$2,901,105
Permit #:
BLCDS-2025-0004
Status:
issued
Fee:
$110
Permit Type:
N/A
Building Type:
N/A
Interior relocation of two thermotron temperature and humidity chambers and installation of two new thermotron flex temperature and humidity chambers along with associated utilities. new heat exhaust ducts to gravity vents will be installed on the roof for connection to the new chambers. (enphase energy)
Valuation:
$197,789
Permit #:
BLDC-2025-0029
Status:
issued
Fee:
$8,426
Permit Type:
N/A
Building Type:
N/A
Erect (2) new emi chambers. relocating (2) chambers from previous location (one chamber will be converted to storage)
Valuation:
$250,000
Permit #:
BLD2025-07522
Status:
issued
Fee:
$6,476
Permit Type:
Other
Building Type:
N/A
New demising wall remodel break area accessibility
Valuation:
$1,550,000
Permit #:
BCOM2025-0028
Status:
issued
Fee:
$38,114
Permit Type:
Alteration
Building Type:
N/A
Drl: moving from the existing facility on 49036 milmont dr. to 48625 warm springs blvd. relocate imtec equipment from 49036 milmont dr to 48625 warm springs blvd. install heat exhaust hoods to connect to new roof mounted exhaust fans. installing of clean dry air process water deionized water oxygen and hydrogen supply lines gas detection system. installation of quartz etching process ... see more
Valuation:
$1,423,493
Permit #:
BLD2022-07694
Status:
complete
Fee:
$29,058
Permit Type:
Alteration
Building Type:
N/A
Commercial (alter) - tenant improvement (office)
2022-03-17
Tenant improvement mep and structural on roof and 3 floors: replace (3) rooftop air conditioning units and furnaces with new same sized equipment. new vav boxes and ddc controls will be installed revision #2 - revised structural design to show new instead of existing 4 x 10 support for new roof top furnaces see drawings s103 and s502. (issued 1/27/22) revision #3 - update furnace supp... see more
Valuation:
$890,000
Permit #:
BD-2020-275885
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Tenant improvement at bridgepoint park 1st floor lobby and exterior all sides: (1) exterior work to include: lobby and entry remodel; new eifs overhang and wood-look screen with metal frame. (2) interior work to include: gut interior lobby. remove (e) gypsum board ceilings. install new aluminum panel ceiling in lobby and provide new finishes in lobby
Valuation:
$300,000
Permit #:
BD-2020-277162
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Tenant improvement at bridgepoint park 1st floor lobby and exterior all sides: (1) exterior work to include: lobby and entry remodel; new eifs overhand and wood-look screen with metal frame. landscape to be remodeled. (2) interior work to include: gut interior lobby. remove (e) gypsum board ceilings. install new aluminum panel ceiling in lobby and provide new finishes in lobby. existi... see more
Valuation:
$600,000
Permit #:
BD-2020-277161
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
This tenant improvement project is adding an accessible all-gender toilet to an existing space within the malley center
Valuation:
$85,000
Permit #:
BLD25-01276
Status:
triage
Fee:
$1,846
Permit Type:
N/A
Building Type:
N/A
The project consists of interior improvements in an existing 1-story building for enphase. the scope of work includes demolition new walls doors & finishes as well as structural mechanical electrical and plumbing work to support the new layout
Valuation:
$2,901,105
Permit #:
BLTI-2021-0012
Status:
issued
Fee:
$39,230
Permit Type:
N/A
Building Type:
N/A
Install an ev vehicle testing chamber inside the existing warehouse
Valuation:
$100,000
Permit #:
BLD2024-03014
Status:
complete
Fee:
$2,949
Permit Type:
New tenant space
Building Type:
N/A
Installation of one espec temperature and humidity chamber in existing research and development room along with electrical & process utilities cable tray modifications heat exhaust and associated test consoles
Valuation:
$62,500
Permit #:
BLDC-2024-0031
Status:
triage
Fee:
$3,014
Permit Type:
N/A
Building Type:
N/A
Tenant improvement for pacific workplaces suite 350 of 4 66sf. demolish & building non-bearing walls; new doors & glazing; new electrical. outlets; relocate (e) plumbing; mechanical modification; new ceiling & lighting
Valuation:
$810,000
Permit #:
BD-2020-275909
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Flextronics: tenant improvement to upgrade the men's & wome
Valuation:
$185,000
Permit #:
B-BP25-0646
Status:
issued
Fee:
$7,301
Permit Type:
Tenant improvement
Building Type:
N/A
Flextronics: tenant improvement to upgrade the men's & women
Valuation:
$185,000
Permit #:
B-BP25-0644
Status:
issued
Fee:
$7,132
Permit Type:
Tenant improvement
Building Type:
N/A
Voluntary ada improvements building rear entry curb ramp and remodel 1st floor womens and mens restrooms. 1 000sf
Valuation:
$313,630
Permit #:
BD-2023-288603
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Tenant improvement to addition an accessible all-gender toilet to an exisiting corridor space within the second floor in guadalupe hall no exterior work
Valuation:
$80,000
Permit #:
BLD24-02235
Status:
final
Fee:
$4,832
Permit Type:
N/A
Building Type:
N/A
Adding an accessible all-gender toilet to an existing space within edward m. dowd hall
Valuation:
$90,000
Permit #:
BLD24-03863
Status:
final
Fee:
$5,367
Permit Type:
N/A
Building Type:
N/A
Total 1 000sf voluntary accessible exterior path of travel improvement outside of main building entrance front approach replace concrete landing & walkway and install new ramp (no m.e.p work)
Valuation:
$86,000
Permit #:
BD-2019-272593
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Minor interior remodel - addition new walls to separate hallway spaces from open office areas addition new non-baring partitions addition new doors reconfigure light switches no change of use or occupancy is proposed
Valuation:
$13,000
Permit #:
BLD23-68986
Status:
final
Fee:
$1,280
Permit Type:
N/A
Building Type:
N/A
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Duplan Construction License info
Verified License
| License # | 475164 |
| Status | Active |
| State | California |
| Type | Plumbing, General Building, Drywall |
| Business Type | Corporation |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for Duplan Construction at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | CRW-679 |
| Status | Active |
| Town | Woodside |
| Type | Architect |
| Business Type | Corporation |
- BuildZoom has not verified this license since July, 2015.
Verify this license's status for Duplan Construction at the The Town of Woodside, CA.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 321917 |
| Status | Inactive |
| State | California |
| Type | General Building, Drywall |
| Business Type | Corporation |
- According to the California Contractors State License Board, 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 Duplan Construction at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
108
BuildZoom Score
Bonded
| Bonded Agent | American Contractors Indemnity Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | Midwest Employers Casualty Company |
238
Permits
- Building permit records show that Duplan Construction has worked on 238 permitted projects.
Duplan Construction Employees
DS
Donald Thomas Sherrin
Officer
DC
Duplan Construction
Owner
MD
Merrick Edward Duplan
Sole Owner
PD
Patricia E Duplan
Ceo / President
PM
Paul Gregory Mckennon
Officer