Updated: May 17, 2025
Location and Projects
Address
1490 NAVARRO DRIVE, Sunnyvale, CA, 94087
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Triantafyllou Demetrios K Architect
Triantafyllou Demetrios K, 1490 Navarro Dr, Sunnyvale, CA holds a Architect license according to the California license board.
Their BuildZoom score of 92 ranks in the top 32% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Triantafyllou Demetrios K, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Triantafyllou Demetrios K Services
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Triantafyllou Demetrios K Contact Information
Address: 1490 NAVARRO DRIVE, Sunnyvale, CA 94087
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Triantafyllou Demetrios K Sunnyvale
Quality
92
68th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Triantafyllou Demetrios K has a BuildZoom score of 92, which places them above 68% of 336,931 contractors in California.
Activity
|
1 project
|
2024 |
|
1 project
|
2023 |
Our building permit records indicate that Triantafyllou Demetrios K has worked on at least
2.0 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
|
$5k-$20k |
|
1 project
|
$100k-$250k |
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 Triantafyllou Demetrios K
This is a sample of this contractor's permits. Click here to access their complete permit history.
Two levels rear extension total of addition 1, 682.9 sq. ft.3. adu extension of the basement total of addition 857.9 sq. ft. legalization of the 2nd dwelling unit under separate pa# 201904299210. **removal of garage under separate demolish pa#202106283341**
Valuation:
$500,000
Permit #:
202006299276
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
28 - 2 family dwe...
Unit 750: kitchen remodel on 2nd fl by removing a wall between (e) kitchen and living room. construct new single level wood deck connects 2nd fl and a stair going to rear yard. replace (2) existing beams and several footings in garage
Valuation:
$60,000
Permit #:
202103227017
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
28 - 2 family dwe...
Unit 5: remodeling kitchen demolish dining doom and living room wall. addition new recessed light in liv room area. replace (e) closet new bathroom at (e) bedroom. addition washer and dryer
Valuation:
$80,000
Permit #:
202108236929
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
24 - apartments
Revision to 202009224742. addition new master bathroom remodel bedroom addition laundry room remove closet and change e sitting room to wic replace side window & enlarge rear window; relocate kitchen and partitoin wall at gr fl
Valuation:
$6,000
Permit #:
202112214789
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Main house remodeling. relocated 2nd fl kitchen and addition a bathroom to (e) dining room
Valuation:
$60,000
Permit #:
202011038010
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Erect 5-story multi-family dwelling units
Valuation:
$800,000
Permit #:
201906183771
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
24 - apartments
Residential: structurally retrofit (e) (3) story wood frame building per san francisco wood-frame seismic retrofit program (2016 cebc appendix a-4) (sfe bc 505e.6.1)
Valuation:
$200,000
Permit #:
201709158715
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
24 - apartments
Demolition of a type 5 1 story detach garage
Valuation:
$5,000
Permit #:
202106283341
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
-
Unit 12: remodel kitchen. demolish (e) dining and living wall. addition recessed lights
Valuation:
$80,000
Permit #:
202108186684
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
24 - apartments
Replace an existing garage into a new accessory dwelling unit. total of 248 sq ft
Valuation:
$100,000
Permit #:
202006038095
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Addition a detached adu at rear yard total of 800 sq.ft. one bed one bathroom
Valuation:
$100,000
Permit #:
202012080491
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
28 - 2 family dwe...
Building/project/master application/master application
1998-03-20
Electonis lab remod
Valuation:
$156,500
Permit #:
98000-00000-00675
Status:
N/A
Fee:
$2,106
Permit Type:
N/A
Building Type:
N/A
Building/project/master application/master application
1996-05-10
Bld.25/offc/lab rem
Valuation:
$150,000
Permit #:
96000-00000-01438
Status:
N/A
Fee:
$1,728
Permit Type:
N/A
Building Type:
N/A
Building/project/master application/master application
1996-12-12
Bldg/12/solar assemb
Valuation:
$375,000
Permit #:
96000-00000-03881
Status:
N/A
Fee:
$3,305
Permit Type:
N/A
Building Type:
N/A
Building/project/master application/master application
1995-07-13
Bldg.3a/remod.w/ext
Valuation:
$1,413,000
Permit #:
95000-00000-01710
Status:
N/A
Fee:
$9,596
Permit Type:
N/A
Building Type:
N/A
Building/project/master application/master application
1994-03-17
Bldg.3/ti-thermalvac
Valuation:
$249,500
Permit #:
94000-00000-00644
Status:
N/A
Fee:
$2,529
Permit Type:
N/A
Building Type:
N/A
Building/project/master application/master application
1992-03-20
Upgrade existing lab
Valuation:
$105,000
Permit #:
92000-00000-00825
Status:
N/A
Fee:
$1,347
Permit Type:
N/A
Building Type:
N/A
Building/project/master application/master application
1990-09-19
Building 2-rm 184 tenant improvement
Valuation:
$95,000
Permit #:
90000-00000-02450
Status:
N/A
Fee:
$1,052
Permit Type:
N/A
Building Type:
N/A
Building/project/master application/master application
1998-04-14
Power lab/bldg.3
Valuation:
$130,000
Permit #:
98000-00000-00957
Status:
N/A
Fee:
$1,919
Permit Type:
N/A
Building Type:
N/A
Building/project/master application/master application
1996-04-11
Building 2/rm #133
Valuation:
$100,000
Permit #:
96000-00000-01121
Status:
N/A
Fee:
$1,326
Permit Type:
N/A
Building Type:
N/A
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Triantafyllou Demetrios K Reviews
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Verified License
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Triantafyllou Demetrios K License info
Verified License
| License # | C14401 |
| Status | Active |
| State | California |
| Type | Architect |
- BuildZoom has not verified this license since May, 2025.
Verify this license's status for Triantafyllou Demetrios K at the California Architect License Board.
This is a sample of licensing data; click here to access a complete history.
92
BuildZoom Score
14
Permits
- Building permit records show that Triantafyllou Demetrios K has worked on 14 permitted projects.
Triantafyllou Demetrios K Employees
TK
Triantafyllou Demetrios K
Owner