Updated: Jan 02, 2026
Location and Projects
Address
3807 MARION AVENUE, Oakland, CA, 94619
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Terra Firma Structural Construction
Serving Oakland, Berkeley, and the greater East Bay, Terra Firma Structural specializes in structural engineering and construction services for residential and commercial properties. The firm focuses on foundation repairs, seismic retrofitting, retaining wall construction, and drainage solutions. Terra Firma Structural’s expertise extends to underpinning, slab replacement, and wood framing, addressing a range of structural challenges unique to Bay Area soils and seismic activity. The company works with homeowners, property managers, and developers, handling both small-scale projects and larger structural upgrades. Through in-depth site assessments and engineered repair strategies, Terra Firma Structural ensures that each project meets local building codes and safety standards. The company prioritizes long-term solutions for structural stability, particularly for properties vulnerable to earthquakes or settlement issues.
Terra Firma Structural Services
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Terra Firma Structural Contact Information
Phone Number: (415) 672-5094
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Address: 3807 MARION AVENUE, Oakland, CA 94619
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Terra Firma Structural Oakland
Quality
109
95th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Terra Firma Structural has a BuildZoom score of 109, which places them above 95% of 336,931 contractors in California.
Activity
|
13 projects
|
2025 |
|
15 projects
|
2024 |
|
17 projects
|
2023 |
Our building permit records indicate that Terra Firma Structural has worked on at least
45.0 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.
Pricing
|
13 projects
|
< $5k |
|
24 projects
|
$5k-$20k |
|
1 project
|
$20k-$50k |
The typical size of their permits is approximately $7,000. 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.
Building Permits by Terra Firma Structural
This is a sample of this contractor's permits. Click here to access their complete permit history.
Seismic crawlspace upgrade in accordance to plan set a seismic crawlspace upgrade in accordance to plan set a
Valuation:
N/A
Permit #:
B25-00044
Status:
issued
Fee:
$557
Permit Type:
Seismic retrofit
Building Type:
N/A
To upgrade the attachment of the single family dwelling to the foundation with a voluntary earthquake strengthening in accordance with standard plan set a for ebb program and the 2019 cbc installing ufp10's anchor plates l90 clips per plans
Valuation:
N/A
Permit #:
BLD2023-01385
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Seismic retrofit in accordance per plan a set a. voluntary crawl space seismic upgrade (bldg)
Valuation:
$7,500
Permit #:
B25-0123
Status:
final
Fee:
$1,091
Permit Type:
N/A
Building Type:
N/A
Voluntary crawlspace seismic upgrade to the foundation with a voluntary earthquake strengthening in accordance with standard plan set a for ebb program and the 2019 cbc installing ufp10 anchor plates per plans
Valuation:
N/A
Permit #:
BLD2023-01239
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Voluntary crawlspace seismic upgrade in accordance to standard plan set a
Valuation:
$4,400
Permit #:
BL-RES-2025-00042
Status:
complete
Fee:
$190
Permit Type:
N/A
Building Type:
N/A
Crawlspace seismic upgrade in accordance to plan set a. (bldg)
Valuation:
$8,500
Permit #:
B25-0164
Status:
issued
Fee:
$1,096
Permit Type:
N/A
Building Type:
N/A
Voluntary crawlspace seismic upgrade according to plan set a
Valuation:
$4,500
Permit #:
BP24-0281
Status:
final
Fee:
$797
Permit Type:
Seismic upgrade
Building Type:
N/A
Voluntary seismic upgrade in accordance to plan set a. (bldg)
Valuation:
$6,950
Permit #:
B25-0015
Status:
final
Fee:
$1,088
Permit Type:
N/A
Building Type:
N/A
Voluntary seismic upgrade in accordance to plan set a
Valuation:
$7,320
Permit #:
BD25-0420
Status:
final
Fee:
$533
Permit Type:
Seismic brace and...
Building Type:
N/A
Seismic retrofit in accordance per plan a set a. voluntary crawl space seismic upgrade (bldg)
Valuation:
$7,500
Permit #:
PREBLD25-0315
Status:
approved
Fee:
$94
Permit Type:
N/A
Building Type:
N/A
Voluntary seismic retrofit - plan set a
Valuation:
$4,500
Permit #:
BD25-0275
Status:
final
Fee:
$515
Permit Type:
Residence. Repair
Building Type:
N/A
Plan set a brace & bolt program voluntary seismic upgrade
Valuation:
$4,400
Permit #:
BP24-0125
Status:
final
Fee:
$525
Permit Type:
Seismic upgrade
Building Type:
N/A
Voluntary crawlspace seismic upgrade in accordance to plan set a for brace and bolt program
Valuation:
$7,920
Permit #:
BIFD24-005598
Status:
plan check distribution begin
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Voluntary crawlspace seismic upgrade in accordance to plan set a for brace and bolt program
Valuation:
$7,920
Permit #:
BIFD24-005591
Status:
plan check distribution begin
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Voluntary crawlspace seismic upgrade in accordance to plan set a
Valuation:
$4,920
Permit #:
BL-RPC-2025-00073
Status:
complete
Fee:
$190
Permit Type:
N/A
Building Type:
N/A
Voluntary crawlspace seismic upgrade in accordance to plan set a
Valuation:
$4,920
Permit #:
BL-RES-2025-00148
Status:
canceled
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Voluntary seismic upgrade in accordance to plan set a for brace and bolt program
Valuation:
$5,920
Permit #:
BRALT-24-0236
Status:
final
Fee:
$240
Permit Type:
Plan set a
Building Type:
N/A
Voluntary crawlspace seismic upgrade in accordance to
Valuation:
$4,720
Permit #:
BP23-0355
Status:
final
Fee:
$531
Permit Type:
Foundation/seismi...
Building Type:
N/A
Voluntary crawlspace seismic upgrade in accordance to
Valuation:
$4,500
Permit #:
BP23-0352
Status:
final
Fee:
$531
Permit Type:
Foundation/seismi...
Building Type:
N/A
Voluntary crawlspace seismic upgrade plan set a brace & bolt
Valuation:
$4,400
Permit #:
BD22-1294
Status:
final
Fee:
$480
Permit Type:
Seismic brace and...
Building Type:
N/A
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Terra Firma Structural Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Terra Firma Structural License info
Verified License
| License # | 1085738 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of January 2026.
Verify this license's status for Terra Firma Structural at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
109
BuildZoom Score
Bonded
| Bonded Agent | This License Filed A Contractor's Bond With |
| Bond Value | $15,000 |
50
Permits
- Building permit records show that Terra Firma Structural has worked on 50 permitted projects.
Terra Firma Structural Employees
OH
Oscar Rolando Hernandez
Sole Owner