Updated: May 17, 2026
Location and Projects
Address
7901 OAKPORT ST, SUITE 4200, Oakland, CA, 94621
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SGDM Construction
SGDM LLC, 7901 Oakport St, Oakland, CA (Employees: Darius Chung Tin Chan, George Yun Wah Mak, and Henry Yun Hong Mak) holds a General Building license and 3 other licenses according to the California license board.
Their BuildZoom score of 116 ranks in the top 2% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring SGDM LLC, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
SGDM LLC Services
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SGDM LLC Contact Information
Phone Number: (415) 462-0619
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Address: 7901 OAKPORT ST, SUITE 4200, Oakland, CA 94621
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SGDM LLC Oakland
Quality
116
98th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
SGDM LLC has a BuildZoom score of 116, which places them above 98% of 336,931 contractors in California.
Activity
|
14 projects
|
2025 |
|
21 projects
|
2024 |
|
28 projects
|
2023 |
Our building permit records indicate that SGDM LLC has worked on at least
63.0 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
|
11 projects
|
Home Additions |
|
8 projects
|
New Constructions |
|
3 projects
|
Commercial Renovations |
|
20 projects
|
Kitchen remodels |
|
6 projects
|
Multi-room remodels |
Analyzing permits over the last 4 years shows that SGDM LLC mostly works on
kitchen remodel
and home addition
projects.
Pricing
|
14 projects
|
< $5k |
|
6 projects
|
$5k-$20k |
|
5 projects
|
$20k-$50k |
|
12 projects
|
$50k-$100k |
|
5 projects
|
$100k-$250k |
|
4 projects
|
$250k-$500k |
|
2 projects
|
$500k-$1mil |
|
1 project
|
$1mil+ |
The typical size of their permits is approximately $49,000. 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.
This is a sample of this contractor's permits. Click here to access their complete permit history.
1st flr: addition 1 bedroom den 1 full bathroom. media room and interior staris connect to 2nd floor. 2nd flr: redmodel kitchen and bathroom. 3rd flr: remodel kitechn & bathroom addition 1 full bathroom. new deck under separate permit. replace windows at front with wood witu ogee lugs
Valuation:
$290,000
Permit #:
202310178814
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
28 - 2 family dwe...
1st fl expand e garage addition new living sapace with excavation remodel e laundry at 2nd remove e kitchen and dining room lvng room addition new bath.3rd fl remodel e bdrooms addition 1 new bathroom. new interior stair
Valuation:
$236,000
Permit #:
202405152200
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Revision to 201605197928 and 202501108162. 2nd fl clsoe window at shower and addition new furnace. 1st fl remove tub new glass railings. new deck with stairs at rear
Valuation:
$20,000
Permit #:
202504083972
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
1) 1/f: addition 1 den media and 2 full baths. 2) 2/f: remodel (e) kitchen bathroom addition 1 full bathroom laundry
Valuation:
$610,000
Permit #:
202212309530
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Lower & upper unit: both units: kitchen and bathroom remodeling new fixtures - new tilets bathtubs and shower vanites sinks appliances
Valuation:
N/A
Permit #:
PP20250522415
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Renovation of single family home. create two new habitable levels by excavating down at existing basement level and lifting the existing two level upper structure 10 to created additional level. horizontal expansion at all levels
Valuation:
$300,000
Permit #:
202106011328
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Convert ground floor retail & rear covered parking to (4) new accessory dwelling units; replace (e) 1st floor retail entries & windows w new adu entries per ordinance 162-16. enclose rear covered parking for new adu
Valuation:
$256,870
Permit #:
201912189949
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
24 - apartments
Convert (e) first story storage spaces to (3)(n) one bedroom units for total of 9 units. excavation of approx 426 cubic yard of dirt. upgrade grd floor to type va construction. comply to maher ord# 155-13 route to dph
Valuation:
$265,000
Permit #:
201907014780
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
24 - apartments
Revision to 201705197060. replace e front exterior stair new stair match e. replace frong stucco wall finish. remove windows and adjust wndow location and size per plans replace e conc slab at garage.replace sising at lightwell new kitchen island
Valuation:
$42,000
Permit #:
202208039820
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
28 - 2 family dwe...
New 55 sf horizontal addition @ 1st floor rear building.rebuild 325 sqft @ 1st floor rear-interior remodel 875 sqft @ 1st floor rear rebuild deck 200 sqft @ 2nd floor rear- addition new deck @ 2nd floor rear.add adu on first floor. per ordincance 162-62
Valuation:
$150,000
Permit #:
202008313003
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
28 - 2 family dwe...
Unit 1 remodel kitchen and bathroom addition 1 bedroom and laundry; unit 2 - remodel kitchen and bathroom addition 1 laundry; unit 3 - remodel kitchen and bathroom addition 1 bedroom and laundry; unit 4 & 5 - remodel kitchen and bathroom. addition 1 bedroom 1 bathroom and laundry
Valuation:
$150,000
Permit #:
201903256121
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
24 - apartments
1st fl addition 2 bedrooms 3 full baths and family. 2nd fl remodel kitchen and 1 full bathroom. reconfigure interior and deck at rear
Valuation:
$220,000
Permit #:
202105210835
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Revision to bpa# 201910023383 to correct the (e) + (p) occupancy classifications and use classification stated in pts for pa# 201910023383 and to correct type of construction to type vb. create exit separation. addition security gate
Valuation:
$8,000
Permit #:
202111092106
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
45 - school
Recommencement o work under pp20220317762 plumbing for adu unit underground kitchen and bathroom
Valuation:
N/A
Permit #:
PP20250225765
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Unit a & b - kitchen and bathroom; new toilets bathroom tubs/shower vanity sinks appliances
Valuation:
N/A
Permit #:
PP20250515283
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Unit 2 3 and 6: kitchen and bathroom. new toilets bathtubs shower vanities sinks appliances
Valuation:
N/A
Permit #:
PP20250422797
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Per pp20230414462 survey permit comments connect the water lines and drains for both the kitchen and bathroom sinks addition the air gap cap for the dishwasher no underground
Valuation:
N/A
Permit #:
PP20240424506
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Erect (1) type 5 3-story 2 unit residential building with one basement
Valuation:
$848,000
Permit #:
201707131832
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
28 - 2 family dwe...
To comply with abe program per ord 51-16 abe 201912230173. barrier removal scope/accessible business entrace improvements at existing ground floor commercial tenant. no structural work no mep no sidewalk work
Valuation:
$18,000
Permit #:
202302071516
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
15 - retail sales
Addition of 3 dwelling units per ord# 162-16. all 3 proposed one-bedroom units are located within (e) building envelope @ the 1st floor
Valuation:
$300,000
Permit #:
202001031229
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
24 - apartments
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SGDM LLC Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
SGDM LLC License info
Verified License
| License # | 1092655 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Ltd Liability |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for SGDM LLC at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 1092101 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Ltd Liability |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for SGDM LLC at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 991414 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Ltd Liability |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for SGDM LLC at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 997545 |
| Status | Inactive |
| State | California |
| Type | General Building |
| Business Type | Ltd Liability |
- 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 SGDM LLC at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
116
BuildZoom Score
Insured
| Insurer | Colony Insurance Company |
| Insured up to | $1,000,000 |
Bonded
| Bonded Agent | Wesco Insurance Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | State Compensation Insurance Fund |
310
Permits
- Building permit records show that SGDM LLC has worked on 310 permitted projects.
SGDM LLC Employees
DC
Darius Chung Tin Chan
Member
GM
George Yun Wah Mak
Member
HM
Henry Yun Hong Mak
Rmm
SM
Steve Yun Ho Mak
Officer
SL
Sydney Si Ning Leung
Member
SL
Sydney Si Ning Leung
Member