Updated: May 03, 2026
Location and Projects
Address
PO BOX 411103, San Francisco, CA, 94141
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Blackline Construction
Blackline Construction, San, Po Box 411103, San Francisco, CA (Employee: Klaus Richard Chalupa) holds a General Building license and 1 other license according to the California license board.
Their BuildZoom score of 117 ranks in the top 1% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Blackline Construction, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Blackline Construction Services
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Blackline Construction Contact Information
Phone Number: (510) 710-3939
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Address: PO BOX 411103, San Francisco, CA 94141
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Blackline Construction San Francisco
Quality
117
99th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Blackline Construction has a BuildZoom score of 117, which places them above 99% of 336,931 contractors in California.
Activity
|
13 projects
|
2025 |
|
14 projects
|
2024 |
|
16 projects
|
2023 |
Our building permit records indicate that Blackline Construction has worked on at least
43.0 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
|
17 projects
|
Home Additions |
|
14 projects
|
Kitchen remodels |
|
8 projects
|
Multi-room remodels |
Analyzing permits over the last 4 years shows that Blackline Construction mostly works on
home addition
and kitchen remodel
projects.
Pricing
|
9 projects
|
< $5k |
|
2 projects
|
$5k-$20k |
|
8 projects
|
$20k-$50k |
|
5 projects
|
$50k-$100k |
|
6 projects
|
$100k-$250k |
|
4 projects
|
$250k-$500k |
|
1 project
|
$500k-$1mil |
The typical size of their permits is approximately $28,096. 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 Blackline Construction
This is a sample of this contractor's permits. Click here to access their complete permit history.
Change of use from construction's office (trade office) to proposed retail store w/service center. alterations include demolish of mezzaine office and stairs (e) restrooms replaced w/accessible restrooms.light electrical hvac sprinklers under separate permit.no increase in area.no changes to envelope
Valuation:
$420,000
Permit #:
202506058022
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
15 - retail sales
Infill 533 sf ground floor below existing deck to include new primary suite with bedroom bathroom 2 closets and direct garden access. relocate existing deck stair with new fire rated wall at property line. waterproof existing main floor terrace & relocate associated stair. create new service
Valuation:
$200,000
Permit #:
202507080338
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Replace 31 windows (11 street facing) to 13 single hung wood and 20 single hung vinyl max. u factor 0.30. paint street facade. replace 200 sq.ft. of siding w engineered paint. remodel 4 kitchens & 4 baths in kind. also replace 4 gas wall heater in kind min. eff. 80% maximum u factor 0.30
Valuation:
$231,000
Permit #:
202307061599
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
24 - apartments
Remodel kitchen and bathroom in 5 units in kind no moving walls. units 1 2 3 4 and 25. replace 25 windows side and back 17 vinyl in back 8 sides in kind. all windows replaced in kind in same openings
Valuation:
$353,175
Permit #:
202410092668
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
24 - apartments
100% affordable housing mayor dir 13-01 (rear bldg- 40 clarion): removal & replace in-kind windows removal & replace in-kind of all doors replace in-kind of kitchen appliances. no final completion until the comparable dwelling unit permit is complete
Valuation:
$87,100
Permit #:
202406285528
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
All 4 units: demolition to studs. remodel remaining portion of interior not coverd under pa 202307061599. addition tankless water heater. rebuild closets. replace front windows in kind with wood double hung with ogees. seismic strengthening per sfebc 503.11.1
Valuation:
$67,000
Permit #:
202308013491
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
24 - apartments
Remodel 2 bathrooms in kind fixtures to remain in same location. remodel 1 closet. no wall changes. each bathroom approx. 40 sq ft
Valuation:
$56,384
Permit #:
202501087962
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
To comply with physical inspection report # cc-8678: smoke detectors gfci kitchen bathroom and laundry. addition grounding and bonding as appropriate
Valuation:
N/A
Permit #:
E202504141617
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Provide (n) security bars at (e) front elevation (aluminum clad marval & hung style) 6 total windows 2 at the basement that are non openable security windows bars and 4 openable security window bars at (e) bedroooms per cbc 1031 and california building standards code part 12 chapter 12-3
Valuation:
$3,500
Permit #:
202401224350
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
24 - apartments
Replace all (116) windows. double-hung wood windows with integrated ogee lugs on front and side elevations. vinyl at rear elevation. remodel 16 kitchens and 16 bathrooms
Valuation:
$450,000
Permit #:
202204152349
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
24 - apartments
To comply with physical inspection report # cc-8678: addition airgap to dw correct drainage fittings addition vaccum breaker to shower head
Valuation:
N/A
Permit #:
PP20250414625
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Unit #2, 6, 7: repair/replace stucco & repaint; remodel 3 kitchen & 3 bathroom (1 kitchen + 1 bathroom in each apartment; 3 apartments)
Valuation:
$189,000
Permit #:
202301039634
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
24 - apartments
To comply with planning enforcement 2020-000171 and document proposed land use as engineering labaratory per p.c. section 890.52cbj; alterations include walls doors interiror glazing ada shower kitchenette mep deferred
Valuation:
$385,000
Permit #:
201912169645
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
77 - workshop com...
Remodel units: 1, 3, 4, 5, and 8. remodel kitchen and bathroom. (10) total
Valuation:
$300,000
Permit #:
202304105374
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
24 - apartments
Revision to pa# 201910255559. existing 6 unit electrical upgrade main panel amp increase addition of 2 adu's update 3 existing kitchens
Valuation:
$300,000
Permit #:
202010217055
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
24 - apartments
Voluntary seismic strengthening of ground flr- new shear walls and foundations voluntary structural repairs to exterior rear decks and staircase to comply w/nov# 201979391 remove roof covering at rear deak area.to comply w/nov# 201802811 provide heat. to comply w/nov# 201947472 provide hot water
Valuation:
$120,000
Permit #:
202302172171
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
24 - apartments
Unit #3: interior kitchen and bathroom remodel with mechanical electrical and plumbing. no exterior changes
Valuation:
$200,000
Permit #:
202406134440
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
24 - apartments
The scope of work is the addition 1 adu to the storage area at the ground floor per sfpc 207(c)(4)
Valuation:
$175,000
Permit #:
202312072116
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
24 - apartments
Remodel kitchen and 1 bathroom addition drywall over lath and plaster in 3 rooms replace 2 gas heaters w direct vent type (in kind) addition lights to ceiling in 5 rooms comply with cec 150.0(k). no exterior work
Valuation:
$50,000
Permit #:
202306270990
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
24 - apartments
Remodel 2 kitchens and bathrooms. replace 30 windows. to back building- insulate and addition exterior cladding. replace front stairs - less than 50%. paint entire building
Valuation:
$20,000
Permit #:
202405202504
Status:
withdrawn
Fee:
N/A
Permit Type:
N/A
Building Type:
28 - 2 family dwe...
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Verified License
BuildZoom confirmed this contractor's license
Blackline Construction License info
Verified License
| License # | 783873 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Corporation |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Blackline 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 # | NAT-F215449-1 |
| Status | Inactive |
| Nation | Environmental Protection Agency |
| Type | Renovation |
| Business Type | Corporation |
- According to the United States Environmental Protection Agency, 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 Blackline Construction at the United States Environmental Protection Agency.
This is a sample of licensing data; click here to access a complete history.
117
BuildZoom Score
Bonded
| Bonded Agent | Business Alliance Insurance Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | State Compensation Insurance Fund |
111
Permits
- Building permit records show that Blackline Construction has worked on 111 permitted projects.
Blackline Construction Employees
KC
Klaus Richard Chalupa
Rmo/Ceo/Pres