Updated: Apr 19, 2026
Location and Projects
Address
202 FREDERICK STREET, Santa Cruz, CA, 95062
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Mahrer, R. Gen Contr Construction
Mahrer, R. Gen Contr at 202 FREDERICK STREET, Santa Cruz, CA 95062, held a General Contractor license (#423036) with the California contractors license board with an expiration date of 05-30-2024. We last verified the license was inactive on 04-18-2026.
Their BuildZoom score is 0 because we haven’t been able to verify an active license. As a result, they’re not ranked in the top 50% of 336,931 California contractors.
If you’re thinking about hiring them, we recommend double-checking their license status with your local licensing authority. Alternatively, use our bidding system to be easily matched to qualified, licensed professionals in your area.
Mahrer, R. Gen Contr Services
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Mahrer, R. Gen Contr Contact Information
Phone Number: (831) 426-9062
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Address: 202 FREDERICK STREET, Santa Cruz, CA 95062
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Mahrer, R. Gen Contr Santa Cruz
Quality
Alert*
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
*No active license on file. If you are Mahrer, R. Gen Contr, click “This is My Business” to update your information.
Activity
|
1 project
|
2024 |
Our building permit records indicate that Mahrer, R. Gen Contr has worked on at least
1.0 project 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
|
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.
This is a sample of this contractor's permits. Click here to access their complete permit history.
Alterations at existing (2) story structure with calcs scope: 1) relocate staircase 2) demolish closet and infill door opening relocate window in family room on 1st floor 3) wall alterations and remodel master bedroom suite on 2nd floor remove garden window install fireplace 4) replace siding and window per plans 5) replace water heater and furnace in garage
Valuation:
$72,794
Permit #:
2018 133777 RS
Status:
final
Fee:
N/A
Permit Type:
Single family
Building Type:
N/A
Alterations at existing (2) story structure with calcs scope: 1) relocate staircase 2) demolish closet and infill door opening relocate window in family room on 1st floor 3) wall alterations and remodel master bedroom suite on 2nd floor remove garden window install fireplace 4) replace siding and window per plans 5) replace water heater and furnace in garage
Valuation:
$72,794
Permit #:
2018 133777 RS
Status:
final
Fee:
N/A
Permit Type:
Single family
Building Type:
N/A
Adu
Valuation:
$211,383
Permit #:
20-2003
Status:
final
Fee:
$5,178
Permit Type:
2nd dwelling
Building Type:
N/A
Addition
Valuation:
$91,750
Permit #:
14-0600
Status:
issued
Fee:
$4,233
Permit Type:
Residential
Building Type:
N/A
Permit to final residence 92042330 and grading 92042331. also to demolish 2 unpermitted storage containers. permit is good for 1 inspection. additional inspections are $140.36 each. final inspection required
Valuation:
$63,629
Permit #:
14001972
Status:
final
Fee:
$354
Permit Type:
N/A
Building Type:
N/A
Remodel
Valuation:
$42,550
Permit #:
18-0943
Status:
final
Fee:
$841
Permit Type:
N/A
Building Type:
N/A
- addition approx 195 sq ft - create access from master bedroom and living room to (n) bathroom - move existing sliding glass door and addition (n) window in living room
Valuation:
$21,427
Permit #:
2020 106727 RS
Status:
final
Fee:
N/A
Permit Type:
Single-family
Building Type:
N/A
Demolish partial residence (see demolish permit)& renovate remainder of house. new roof structure included. totalremodel = 1828 s.f. new wood decks w concrete membrane = 470 s.f. & new habitable space 533 s.f.revision submitted 7/18/97 - for conversion of attic space to second floor hab. space (1698s.f.)
Valuation:
$180,135
Permit #:
B96-001003
Status:
final
Fee:
$4,920
Permit Type:
N/A
Building Type:
N/A
Replace existing 153sq.ft second floor exterior deck over garage and replace existing patio door (no structural changes) at an existing 2-story single family dwelling. install listed smoke detectors and carbon monoxide alarms or combination smoke and carbon monoxide detectors/alarms in the existing dwelling
Valuation:
N/A
Permit #:
B-113816
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
Single residence
Addition & remodel
Valuation:
$153,000
Permit #:
07-0508
Status:
final
Fee:
$4,023
Permit Type:
Residential
Building Type:
N/A
+remodel/addition; convert study to adu
Valuation:
$276,317
Permit #:
B22-0186
Status:
final
Fee:
$17,503
Permit Type:
New adu attached
Building Type:
N/A
Remodel kitchen move stove over new cabinets and floors; replace all windows in house remodel laundry room; replace doors throughout house. re tile hall bathroom. change out garage door
Valuation:
N/A
Permit #:
BLD2005-01129
Status:
final
Fee:
$584
Permit Type:
N/A
Building Type:
N/A
Bathroom remodel
Valuation:
N/A
Permit #:
B17-0342
Status:
final
Fee:
$274
Permit Type:
Bathroom remodel
Building Type:
N/A
Replace exterior siding with stucco
Valuation:
$35,000
Permit #:
B17-0403
Status:
final
Fee:
$320
Permit Type:
Remodel
Building Type:
N/A
Remodel hall bathroom 37.5 sqft
Valuation:
$4,125
Permit #:
B15-0003
Status:
final
Fee:
$378
Permit Type:
Remodel
Building Type:
N/A
Run conduit for landscape lights on 9 light poleswith 3 40 watt bulbs each on triangular piece of property across for address
Valuation:
N/A
Permit #:
E99-000525
Status:
final
Fee:
$48
Permit Type:
N/A
Building Type:
N/A
Legalize attached adu - 134 hugus a
Valuation:
$53,226
Permit #:
B17-0536
Status:
final
Fee:
$4,717
Permit Type:
New adu attached
Building Type:
N/A
Batrhroom remodel
Valuation:
N/A
Permit #:
B12-0572
Status:
final
Fee:
N/A
Permit Type:
Remodel
Building Type:
N/A
Rmve interior wall instl beam-piers instl french doors addition steps and walkway
Valuation:
$15,000
Permit #:
B01-000394
Status:
final
Fee:
$459
Permit Type:
N/A
Building Type:
N/A
Remodel bathroom in single family dwelling
Valuation:
N/A
Permit #:
B11-0148
Status:
final
Fee:
N/A
Permit Type:
Remodel
Building Type:
N/A
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Mahrer, R. Gen Contr License info
Inactive License
| License # | 423036 |
| Status | Inactive |
| State | California |
| Type | General Building |
| 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 Mahrer, R. Gen Contr at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
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BuildZoom Score
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- *No active license on file. If you are Mahrer, R. Gen Contr, click “This is My Business” to update your information.
Bonded
| Bonded Agent | Suretec Indemnity Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | California Insurance Company |
26
Permits
- Building permit records show that Mahrer, R. Gen Contr has worked on 26 permitted projects.
Mahrer, R. Gen Contr Employees
RM
Robert Mahrer
Owner
RM
Robert Warren Mahrer
Sole Owner