Updated: May 01, 2026
Location and Projects
Address
39 LONG CREEK CIRCLE, Clayton, CA, 94517
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Ecobuilding Construction
Ecobuilding, 39 Long Creek Cir, Clayton, CA (Owned by: Lilian Novoa Matthias) holds a General Building license and 1 other license according to the California license board.
Their BuildZoom score of 94 ranks in the top 24% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Ecobuilding, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Ecobuilding Services
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Ecobuilding Contact Information
Phone Number: (925) 899-1315
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Address: 39 LONG CREEK CIRCLE, Clayton, CA 94517
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This is a sample of this contractor's permits. Click here to access their complete permit history.
Demolish existing kitchen prep walls relocate plumbing and electrical. install new cabinets. demolish existing fireplace and prep walls for granite fabricator bar area: install new cabinets lighting and outlets leave ready for countertops entertainment area: remove existing cabinet install new cabinet and leave ready for countertops. create opening under stairs to install wine fridge ... see more
Valuation:
N/A
Permit #:
BIAL23-006970
Status:
final
Fee:
$2,002
Permit Type:
N/A
Building Type:
N/A
Demolish existing kitchen prep walls relocate plumbing and electrical. install new cabinets. demolish existing fireplace and prep walls for granite fabricator bar area: install new cabinets lighting and outlets leave ready for countertops entertainment area: remove existing cabinet install new cabinet and leave ready for countertops. create opening under stairs to install wine fridge ... see more
Valuation:
N/A
Permit #:
BISUB23-01045
Status:
applied
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Building new construction additions alterations or sign
2020-02-19
Kitchen and bathroom remodel
Valuation:
$25,000
Permit #:
B191890
Status:
final
Fee:
$1,674
Permit Type:
Alteration
Building Type:
N/A
Building new construction additions alterations or sign
2020-03-11
Kitchen and bathroom remodel
Valuation:
$23,000
Permit #:
B200046
Status:
final
Fee:
$1,241
Permit Type:
Alteration
Building Type:
N/A
Bathroom remodel-replace tub toilet vanity & install floor tile. in kitchen-replace cabinets counter tops new tile floor
Valuation:
$20,000
Permit #:
B182227
Status:
final
Fee:
$770
Permit Type:
N/A
Building Type:
N/A
Building new construction additions alterations or sign
2014-03-26
Addition can lights replace can lights new sinks new shower heads
Valuation:
$48,000
Permit #:
B140454
Status:
final
Fee:
$3,081
Permit Type:
Ralt
Building Type:
N/A
Replace shower in master bathroom and tile around tub in hall bathroom
Valuation:
N/A
Permit #:
BIAL14-006296
Status:
final
Fee:
$479
Permit Type:
N/A
Building Type:
N/A
Building new construction additions alterations or sign
2010-08-27
Addition & alteration in living/dining room. added 2/24/11: conversion to r3.1
Valuation:
$80,000
Permit #:
B101023
Status:
final
Fee:
$4,168
Permit Type:
Radd
Building Type:
N/A
Building new construction additions alterations or sign
2020-01-14
Bathroom remodel
Valuation:
$12,000
Permit #:
B191845
Status:
final
Fee:
$762
Permit Type:
Alteration
Building Type:
N/A
Building new construction additions alterations or sign
2010-05-18
Remodel kitchen building ponywall install new vanities
Valuation:
$21,500
Permit #:
B100571
Status:
final
Fee:
$1,110
Permit Type:
Ralt
Building Type:
N/A
Property file retrieval
Valuation:
N/A
Permit #:
11-02140
Status:
final
Fee:
$15
Permit Type:
Plan retrieval
Building Type:
N/A
Building new construction additions alterations or sign
2015-08-19
Repair shower pan & replace shower & floor tile
Valuation:
$7,000
Permit #:
B151413
Status:
final
Fee:
$557
Permit Type:
Ralt
Building Type:
N/A
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Ecobuilding Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Ecobuilding License info
Verified License
| License # | 945538 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for Ecobuilding at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 925-289-2977 |
| Status | Active |
| City | Richmond |
| Type | Contractor |
| Business Type | Sole Ownership |
- When BuildZoom last verified this license, it had an expiration date of April, 2016. Check the current license status of Ecobuilding with the The City of Richmond, CA
This is a sample of licensing data; click here to access a complete history.
94
BuildZoom Score
Bonded
| Bonded Agent | Wesco Insurance Company |
| Bond Value | $15,000 |
11
Permits
- Building permit records show that Ecobuilding has worked on 11 permitted projects.
Ecobuilding Employees
LM
Lilian Novoa Matthias
Sole Owner
LM
Lilian Novoa Matthias
Owner