Updated: Apr 26, 2026
Location and Projects
Address
4769 OLD DUBLIN ROAD, Castro Valley, CA, 94552
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Northup Construction
Based in Castro Valley, Northup Construction provides residential remodeling and construction services throughout the East Bay. The company specializes in home renovation projects, such as kitchen and bathroom remodels, room additions, and interior upgrades. Northup Construction serves homeowners in Castro Valley and surrounding communities, offering expertise in both structural improvements and cosmetic updates. The company’s portfolio includes completed projects ranging from updated living spaces to functional kitchen transformations. Northup Construction works directly with clients on design solutions and material selections, coordinating all phases of residential construction. The firm manages permitting, scheduling, and site supervision, ensuring each project is tailored to clients’ needs. Northup Construction’s experience encompasses both single-family homes and multi-room renovations in Alameda County.
Northup Construction Services
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Northup Construction Contact Information
Phone Number: (209) 368-3411
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Address: 4769 OLD DUBLIN ROAD, Castro Valley, CA 94552
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Northup Construction Castro Valley
Quality
101
88th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Northup Construction has a BuildZoom score of 101, which places them above 88% of 336,931 contractors in California.
Activity
|
6 projects
|
2025 |
|
1 project
|
2024 |
Our building permit records indicate that Northup Construction has worked on at least
7.0 projects over the past 2 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.
Pricing
|
4 projects
|
< $5k |
|
2 projects
|
$20k-$50k |
The typical size of their permits is approximately $2,500. 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.
Dry rot repair and addition new railing to exterior balcony to bring up to code
Valuation:
$2,500
Permit #:
B25-0599
Status:
final
Fee:
$371
Permit Type:
N/A
Building Type:
N/A
Dry rot repair and addition new railing to exterior balcony to bring up to code
Valuation:
$2,500
Permit #:
B25-0596
Status:
final
Fee:
$371
Permit Type:
N/A
Building Type:
N/A
Dry rot repair and new railing to exterior balcony to bring up to code
Valuation:
$2,500
Permit #:
B25-0598
Status:
final
Fee:
$371
Permit Type:
N/A
Building Type:
N/A
Dry rot repair and new railing to exterior balcony to bring up to code
Valuation:
$2,500
Permit #:
B25-0597
Status:
final
Fee:
$371
Permit Type:
N/A
Building Type:
N/A
780 sf new siding at garage and east side of home
Valuation:
$21,060
Permit #:
B25-018395
Status:
final
Fee:
$720
Permit Type:
N/A
Building Type:
N/A
Adding a rear deck to second floor
Valuation:
$25,000
Permit #:
BL-RES-2024-00133
Status:
expired
Fee:
$1,267
Permit Type:
N/A
Building Type:
N/A
Revision to bl-res-2024-00133 deck framing
Valuation:
N/A
Permit #:
BL-RV-2024-00159
Status:
filed
Fee:
$147
Permit Type:
N/A
Building Type:
N/A
Replace existing flat roof with a new gable style roof over an approximately 500-square-foot area to the rear of home and patio
Valuation:
$12,000
Permit #:
B17-3524
Status:
final
Fee:
$399
Permit Type:
N/A
Building Type:
N/A
(b) - building alteration - 3+ residential units or commercial (building)
2016-12-06
Remove all existing siding and trim at accent walls (near entryway feature and areas where balconies are) remove all 30 existing windows and related trim and install new; install 3 coat stucco; and install hardie cement board. ds160148
Valuation:
$20,000
Permit #:
B1601328
Status:
final
Fee:
$1,334
Permit Type:
N/A
Building Type:
N/A
Raise house 4 feet to create laundry room mechanical room new basement storage areas/rooms garage rebuild front & rear stairs. 7/25/14 - transfers permit from avant canyon group inc./785932.08/18: remodel kitchen and bathroom with replacement of balance of windows (15) ds130232
Valuation:
$69,500
Permit #:
RB1400387
Status:
final
Fee:
$3,333
Permit Type:
N/A
Building Type:
N/A
Plumbing to raise house 4 feet to create laundry room mechanical room new basement storage areas/rooms garage rebuild front & rear stairs. 7/25/14 - transfers permit from avant canyon group inc./785932.08/18: remodel kitchen and bathroom with replacement of balance of windows (15) ds130232
Valuation:
N/A
Permit #:
RP1401595
Status:
final
Fee:
$346
Permit Type:
N/A
Building Type:
N/A
Permit value$20k remove all existing siding and trim at accent walls (near entryway feature and areas where balconies are) remove all 30 existing windows and related trim and install new; install 3 coat stucco; and install hardie cement board. ds160148
Valuation:
N/A
Permit #:
B1601328
Status:
ISSUED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Plumbing to raise house 4 feet to create laundry room mechanical room new basement storage areas/rooms garage rebuild front & rear stairs. 7/25/14 - transfers permit from avant canyon group inc./785932.08/18: remodel kitchen and bathroom with replacement of balance of windows (15) ds130232
Valuation:
N/A
Permit #:
RP1401595
Status:
PERMIT ISSUED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Building single story addition of 726 sq ft to an existing 1 104 sq ft residence to create a master bedroom bathroom walk-in closet bedroom #2 and laundry room. create family room from (e) bedroom. remodel and expand (e) kitchen remodel (e) bathroom. upgrade main service panel to 250a. install new tankless water heater furnace and air conditioning. (byc/rada )
Valuation:
N/A
Permit #:
PRJ2016-00818
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Permit value$69.5k raise house 4 feet to create laundry room mechanical room new basement storage areas/rooms garage rebuild front & rear stairs. 7/25/14 - transfers permit from avant canyon group inc./785932.08/18: remodel kitchen and bathroom with replacement of balance of windows (15) ds130232
Valuation:
N/A
Permit #:
RB1400387
Status:
PERMIT ISSUED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
To addition to and remodel a single family dwelling per approved plans:1) to remove 2 non-bearing bedroom walls to expand kitchen and kitchen remodel with island 260 sq. ft.2) addition 26'6"x15'3 wood patio cover of 404 sq. ft. (open on three sides) to the rear of the residence. a new bbq cabinet with a small sink and gas line for bbq will be installed. bbq to be listed for installati... see more
Valuation:
N/A
Permit #:
BLD2012-02392
Status:
FINALED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Mechanical for f.a.u. of 95% efficiency low pressure duct condensate drain flue dryer vent & gas test
Valuation:
N/A
Permit #:
RM1401022
Status:
final
Fee:
$317
Permit Type:
N/A
Building Type:
N/A
To replace 2 existing 7'x21 flat roofs on either side of the entry portico of the main building. like for like
Valuation:
N/A
Permit #:
BLD2012-02203
Status:
FINALED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Demolish interior walls to expand kitchen and great room
Valuation:
$30,000
Permit #:
B14-2021
Status:
final
Fee:
$924
Permit Type:
N/A
Building Type:
N/A
Remove illegal addition and portion of deck built without permits. building new deck and install egress windows in two bedrooms per plans
Valuation:
N/A
Permit #:
BIAL12-000385
Status:
plancheck
Fee:
$319
Permit Type:
N/A
Building Type:
N/A
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Northup Construction Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Northup Construction License info
Verified License
| License # | 265315 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for Northup Construction at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 758640 |
| Status | Inactive |
| State | California |
| Type | Painting And Decorating, General Building |
| Business Type | Sole Ownership |
- 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 Northup Construction at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 389694 |
| Status | Inactive |
| State | California |
| Type | General Building |
| Business Type | Sole Ownership |
- 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 Northup Construction at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 287947 |
| Status | Inactive |
| State | California |
| Type | General Building |
| Business Type | Sole Ownership |
- 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 Northup Construction at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
101
BuildZoom Score
Bonded
| Bonded Agent | Hudson Insurance Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | State Compensation Insurance Fund |
60
Permits
- Building permit records show that Northup Construction has worked on 60 permitted projects.
Northup Construction Employees
CN
Claude Donald Northum
Sole Owner
JN
Jeffrey Donald Northup
Sole Owner
KN
Kelly Winston Northup
Owner
TN
Timothy W Northup
Sole Owner
WN
William Winston Northup
Sole Owner