Updated: May 31, 2026
Location and Projects
Address
543 COUNTRY CLUB DR STE B-609, Simi Valley, CA, 93065
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Construction By De Mill Inc
For nearly three decades, Construction By De Mill Inc has specialized in residential remodeling and new construction throughout Simi Valley and surrounding areas. The firm’s portfolio includes full-home renovations, historical remodels, and architectural redesigns in neighborhoods such as Brentwood and Beverly Hills. Projects range from reconfiguring estate wings with expanded kitchens and vaulted ceilings to modernizations of 1970s-era homes, blending contemporary features with classic design elements. Construction By De Mill Inc delivers tailored solutions for a variety of clients, including homeowners, producers, U.S. ambassadors, and builders. The company’s experience covers European-style homes with courtyards, Mediterranean residences featuring Saltillo tile and exposed beams, and urban remodels with venetian plaster finishes. With expertise in both extensive remodels and custom new builds, Construction By De Mill Inc brings a depth of experience to residential construction needs in the Greater Los Angeles area.
Construction By De Mill Inc Services
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Construction By De Mill Inc Contact Information
Phone Number: (818) 535-7100
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Address: 543 COUNTRY CLUB DR STE B-609, Simi Valley, CA 93065
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Construction By De Mill Inc Simi Valley
Quality
109
95th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Construction By De Mill Inc has a BuildZoom score of 109, which places them above 95% of 336,931 contractors in California.
Activity
|
4 projects
|
2025 |
|
4 projects
|
2024 |
|
10 projects
|
2023 |
Our building permit records indicate that Construction By De Mill Inc has worked on at least
18.0 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
|
Multi-room remodels |
|
11 projects
|
Kitchen remodels |
Analyzing permits over the last 4 years shows that Construction By De Mill Inc mostly works on
kitchen remodel
and multi-room remodel
projects.
Pricing
|
4 projects
|
< $5k |
|
8 projects
|
$5k-$20k |
|
3 projects
|
$20k-$50k |
|
7 projects
|
$50k-$100k |
|
1 project
|
$100k-$250k |
The typical size of their permits is approximately $10,000. 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.
Building Permits by Construction By De Mill Inc
This is a sample of this contractor's permits. Click here to access their complete permit history.
Replace existing vinyl siding with hardi siding reroof house 3500 sf remove existing and apply comparable shingles remove existing windows and exterior doors weatherproof and re-install windows and doors
Valuation:
N/A
Permit #:
BP25-01638
Status:
issued
Fee:
$1,098
Permit Type:
N/A
Building Type:
Building
Kitchen/(3)bathroom remodel for residential buildings (no structural changes). (11)window and (5) door change-out (same size & type) for residential buildings. dual glazing labeled and certified by national fenestration rating council (nfrc) is required for doors and windows replaced in all residential buildings three stories or less per title 24 part 6 section 150.2(b) 1b. replace dr... see more
Valuation:
$70,000
Permit #:
22016-20000-24637
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Supplemental permit to permit number: 20016-10000-31364 to update the scope of work to new wood deck on piles located on the south side and new structural concrete deck on piles on the east side of the single family dwelling. **dept error - no fee**
Valuation:
N/A
Permit #:
20016-10002-31364
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Wood siding over solid sheathing with an approved water-resistive barrier per valid icc evaluation report # ( esr 1159) on exterior walls at 5 feet or more from property lines for residential buildings. (applicant to provide a copy of the report to inspector). window (8) and door (1) change-out (same size & type) for residential buildings. dual glazing labeled and certified by nationa... see more
Valuation:
$15,000
Permit #:
23016-20000-39480
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Supplemental ref to pcis # 24016-30000-23474 to remodel 2 bathrooms on the second floor
Valuation:
$6,000
Permit #:
24016-30004-23474
Status:
issued
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Replace drywall/plaster (patch and paint). non-structural repair only. sandblast/restucco over existing stucco to remain. area = 1120 sqft. interior bathroom remodel/repair (no changes in walls or openings). replace damaged wood framing (less than 10%). same size spacing type
Valuation:
$26,780
Permit #:
20016-90000-09293
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Supplemental permit to # 24016-30000-23474 for revision to entry sliding doors wall framing remove and replace front staircase steps landing and guardrails
Valuation:
$10,000
Permit #:
24016-30002-23474
Status:
issued
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Structural remodel of the unit 214 314 414. new structural partitions. remodel of kitchen & bathrooms
Valuation:
$200,001
Permit #:
21016-30000-57327
Status:
final
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Non-structural remodel of kitchen & bathrooms. new non-structural partition *** 3 of 4 ***
Valuation:
$200,001
Permit #:
21016-30000-36421
Status:
issued
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Non-structural remodel of kitchen & bathrooms. new non-structural partition *** 2 of 4 ***
Valuation:
$200,001
Permit #:
21016-30000-36419
Status:
issued
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Non-structural remodel of kitchen & bathrooms. new non-structural partition *** 1 of 4 ***
Valuation:
$200,001
Permit #:
21016-30000-36418
Status:
issued
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Non-structural remodel of kitchen & bathrooms. new non-structural partition *** 4 of 4 ***
Valuation:
$200,001
Permit #:
21016-30000-36422
Status:
issued
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Kitchen/bathroom (2) remodel for residential buildings (no structural changes)
Valuation:
$100,000
Permit #:
21016-20000-30575
Status:
final
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Remodel master bathroom and kitchen extend kitchen into existing covered patio addition 6 windows remove 1 window replace 2 windows replace 1 exterior door
Valuation:
$35,000
Permit #:
20016-30000-12191
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Non structural remodel kitchen bathrooms and entry for partitions ***9 of 12 ***
Valuation:
$85,000
Permit #:
21016-30000-21762
Status:
final
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Interior remodel of (e) unit. scope of work to include kitchen remodel bathroom remodel relocate dressing room door and change out entry door. unit 415
Valuation:
$25,000
Permit #:
21016-30000-09751
Status:
final
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Reroof of 50 squares with structural framing due to dry rot & pad platforms for hvac & infill skylight. new beams post and pad footing for new equipment on roof
Valuation:
$5,000
Permit #:
20016-10000-30643
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
1-kitchen/1-bathroom remodel for residential buildings (no structural changes)
Valuation:
$75,000
Permit #:
21016-10000-19894
Status:
final
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Interior non structural remodel of kitchen bathrooms and entry partitions. *** 11 of 12 ***
Valuation:
$85,000
Permit #:
21016-30000-20539
Status:
final
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Interior non structural remodel of kitchen bathrooms and entry partitions. *** 8 of 12 ***
Valuation:
$85,000
Permit #:
21016-30000-20535
Status:
issued
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
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Construction By De Mill Inc License info
Verified License
| License # | 719903 |
| 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 Construction By De Mill Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
109
BuildZoom Score
Bonded
| Bonded Agent | American Contractors Indemnity Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | State Compensation Insurance Fund |
69
Permits
- Building permit records show that Construction By De Mill Inc has worked on 69 permitted projects.
Construction By De Mill Inc Employees
GM
Gerald Richard De Mill
Owner