Updated: Jun 01, 2026
Location and Projects
Address
25198 MUIR STREET #5, Hayward, CA, 94544
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Terra Sol Design Builders Construction
Specializing in custom residential landscapes across the East Bay, Terra Sol Design Builders operates from Hayward, CA, and serves cities including San Leandro, Castro Valley, and Oakland. The company focuses on designing and building outdoor living spaces, with project experience that includes patio installations, retaining walls, drought-tolerant plantings, and comprehensive garden design. Terra Sol Design Builders works with a range of property types, from single-family homes to larger estate gardens, drawing on over two decades of experience to create functional and visually appealing outdoor environments. Their capabilities extend to hardscape features such as flagstone pathways, paver patios, and decorative masonry, as well as specialized solutions for California-friendly landscaping. Each project involves tailored consultation to address site-specific challenges and the needs of homeowners in the Bay Area.
Terra Sol Design Builders Services
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Terra Sol Design Builders Contact Information
Phone Number: (415) 609-7520
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Address: 25198 MUIR STREET #5, Hayward, CA 94544
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Terra Sol Design Builders Hayward
Quality
100
87th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Terra Sol Design Builders has a BuildZoom score of 100, which places them above 87% of 336,931 contractors in California.
Activity
|
1 project
|
2025 |
|
1 project
|
2024 |
|
1 project
|
2023 |
Our building permit records indicate that Terra Sol Design Builders has worked on at least
3.0 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
|
1 project
|
$20k-$50k |
|
1 project
|
$250k-$500k |
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 Sol Design Builders
This is a sample of this contractor's permits. Click here to access their complete permit history.
Single story rear addition (212 sq. ft.) to existing front unit on a lot containing 2 detached dwelling units. interior remodeling of the entire existing house (1047 sq. ft.) the proposed alteration to front unit would result in the reduction from 3 bedrooms to 1 bedroom. replace (e) tank water heater with (n) tankless water heater outside bedroom. install (n) furnace in attic. [xxx g... see more
Valuation:
$281,404
Permit #:
BD-2022-284313
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
To comply with complaint/nov# 202297925 202298476 202298478. stairs handrail. remove plastic. provide duct for furnace. all work not visible from street
Valuation:
$3,000
Permit #:
202212017488
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Engineered seismic retrofit & foundation replacement for transfer tax rebate revised scope of work to include basement renovation include storage space 1/2 bathroom and laundry area. basement shall not be conditioned. valuation increased to $65, 000
Valuation:
$65,000
Permit #:
B2019-05230
Status:
final
Fee:
$3,090
Permit Type:
N/A
Building Type:
N/A
One 20 amp circuit - to new bathroom - light - fan - plug (gfci) to existing panel
Valuation:
N/A
Permit #:
E202204199700
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Convert basement to 1 (one) bedroom adu-add entrance kitchen within living room convert existing half bathroom to a full bathroom include laundry as part of unit and addition one new bathroom
Valuation:
$25,000
Permit #:
B2020-02131
Status:
final
Fee:
$1,842
Permit Type:
N/A
Building Type:
N/A
Clear violation 2022-97925 and fix broken main line at side walk near tree
Valuation:
N/A
Permit #:
PP20221209503
Status:
expired
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
3 fixtures - toilet shower pan sink for new bathroom in lower/garage level
Valuation:
N/A
Permit #:
PP20220419378
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
2/7/2020 - install 24 additional recessed lights on main floor only and rewire entire house 200 amp panel upgrade 100 amp sub panel (5) recessed lights in kitchen area and upgrade electrical in living room.(subject to field inspection)
Valuation:
N/A
Permit #:
B2019-05218
Status:
final
Fee:
$275
Permit Type:
N/A
Building Type:
N/A
Relocate stairs to prop line due to conflict w/pg&e gas line
Valuation:
N/A
Permit #:
REV24-0027
Status:
approved
Fee:
N/A
Permit Type:
In-law unit
Building Type:
N/A
R/r comparable 18sq
Valuation:
$20,000
Permit #:
B22-2210
Status:
final
Fee:
$254
Permit Type:
N/A
Building Type:
N/A
R/r deck & cover
Valuation:
$30,000
Permit #:
B22-2209
Status:
final
Fee:
$970
Permit Type:
N/A
Building Type:
N/A
Addition new bathroom on garage level
Valuation:
$19,500
Permit #:
202110150571
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Convert 64 sqft of the front porch to extend existing bedroom addition bathroom
Valuation:
$11,000
Permit #:
B2020-01209
Status:
final
Fee:
$1,051
Permit Type:
N/A
Building Type:
N/A
Change existing galvanized piping to copper piping in main unit only and drain lines & replacing water heater
Valuation:
N/A
Permit #:
B2019-05465
Status:
final
Fee:
$196
Permit Type:
N/A
Building Type:
N/A
1 190sf : adu 770sf rear addition 420sf arage 240sf
Valuation:
$330,000
Permit #:
B21-0923
Status:
issued
Fee:
$9,615
Permit Type:
Addition
Building Type:
N/A
Provide new 20a ckt for 1/2 bathroom cit for garage lights & plumbs 12/2 (2) 15 lights 5 switches 8 receptacles 1 fan 1 smoke detector washer & dryer
Valuation:
$0
Permit #:
E201509111432
Status:
ISSUED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Provide new 20a ckt for 1/2 bathroom cit for garage lights & plumbs 12/2 (2) 15 lights 5 switches 8 receptacles 1 fan 1 smoke detector washer & dryer
Valuation:
N/A
Permit #:
E201509111432
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
***** print only 4 comment lines ***** building crawl space isntall ply & bracing. in carport: install grade beam remove & reinstall water heater. strapping , strong wall& shear walls. in
Valuation:
$40,000
Permit #:
1000000855
Status:
ISSUED
Fee:
N/A
Permit Type:
Bp-3 (3 wk
Building Type:
N/A
Permit value$40kmessage contractor ***** print only 4 comment lines ***** building crawl space isntall ply & bracing. in carport: install grade beam remove & reinstall water heater. strapping , strong wall& shear walls. in
Valuation:
N/A
Permit #:
1000000855
Status:
ISSUED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Addition of master bedroom suite (bumpout) at back of house 250 sq. ft. interior remodel of master bathroom dressing area foyer 450 sq. ft. wildland/urban interface requirements apply
Valuation:
N/A
Permit #:
BLD2011-00523
Status:
FINALED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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Terra Sol Design Builders Reviews
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Terra Sol Design Builders License info
Verified License
| License # | 727985 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Terra Sol Design Builders at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 782032 |
| 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 Terra Sol Design Builders at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 962069 |
| 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 Terra Sol Design Builders at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
100
BuildZoom Score
Bonded
| Bonded Agent | Old Republic Surety Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | Norguard Insurance Company |
38
Permits
- Building permit records show that Terra Sol Design Builders has worked on 38 permitted projects.
Terra Sol Design Builders Employees
CV
Carolyn J Viera
Officer
FP
Francisco De Jesus Palma
General Partner
JC
Jose Luis Casco
Sole Owner
KW
Kathleen M Whitman
Ceo/President
RW
Randolph Whiman
Officer
RW
Randolph Whiman
Officer