Updated: May 08, 2026
Location and Projects
Address
420 N CIVIC DRIVE UNIT 402, Walnut Creek, CA, 94596
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J5 REAL ESTATE & DEVELOPMENT COMPANY Construction
Serving Walnut Creek, California, J5 Real Estate & Development Company has over 25 years of experience managing residential and commercial projects. The firm specializes in real estate development, project management, and investment analysis in the East Bay area. J5 Real Estate & Development Company’s portfolio includes residential subdivisions, mixed-use developments, and commercial building renovations. The company works with property owners, investors, and developers on ground-up construction and property redevelopment projects. J5 Real Estate & Development Company emphasizes comprehensive project oversight, including land acquisition, entitlement processing, and construction coordination. Serving cities across Contra Costa and Alameda Counties, their expertise extends to both urban infill developments and suburban residential communities. J5 provides strategic insight at each phase of the development process, from concept design through project completion.
J5 REAL ESTATE & DEVELOPMENT COMPANY Services
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J5 REAL ESTATE & DEVELOPMENT COMPANY Contact Information
Phone Number: (510) 853-4459
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Address: 420 N CIVIC DRIVE UNIT 402, Walnut Creek, CA 94596
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J5 REAL ESTATE & DEVELOPMENT COMPANY Walnut Creek
Quality
104
91st percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
J5 REAL ESTATE & DEVELOPMENT COMPANY has a BuildZoom score of 104, which places them above 91% of 336,931 contractors in California.
Activity
|
3 projects
|
2025 |
|
6 projects
|
2024 |
|
8 projects
|
2023 |
Our building permit records indicate that J5 REAL ESTATE & DEVELOPMENT COMPANY has worked on at least
17.0 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
|
6 projects
|
Home Additions |
|
3 projects
|
Multi-room remodels |
|
3 projects
|
Kitchen remodels |
Analyzing permits over the last 4 years shows that J5 REAL ESTATE & DEVELOPMENT COMPANY mostly works on
home addition
and kitchen remodel
projects.
Pricing
|
3 projects
|
< $5k |
|
3 projects
|
$5k-$20k |
|
3 projects
|
$20k-$50k |
|
1 project
|
$50k-$100k |
|
4 projects
|
$100k-$250k |
|
1 project
|
$250k-$500k |
The typical size of their permits is approximately $20,000. 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 J5 REAL ESTATE & DEVELOPMENT COMPANY
This is a sample of this contractor's permits. Click here to access their complete permit history.
Conversion of (e) basement storage & crawlspace to (n) habitable space relocate stairs down 1/f: (e) 1/2-bath & hallway renovation (4) (n) wood windows & (1) wood door/side lite @ basement (not visible from street)
Valuation:
$460,000
Permit #:
202311160908
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Ref coa#2022-005798coa. 2)interior renovation of 952 including: conversion on 1st floor storage to new habitable space infill under extg floor above approx 93 sq ft and partial renovation of extg bathroom. 3)interior renovation of 954 including: legalize 4th floor and provide nftp 13r sprinklers
Valuation:
$200,000
Permit #:
202212299374
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
28 - 2 family dwe...
Approx. 2.5 linear feet of reinforcing retaining wall to be built on the 639 castro property. new wall will be anchored to the existing wall that is shared between the 2 properties at that location (se corner of 639 castro & ne corner 240 hartford
Valuation:
$4,500
Permit #:
202401123928
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
24 - apartments
Revision to pa 2016-0916-7950 to change the previously approved ~10-foot tall steel soldier pile and wood lagging wall adjacent to the east side of the rear patio to a concrete retaining wall using a previously approved structural detail
Valuation:
$1,000
Permit #:
202409090313
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Kitchen remodel. removal of a column & replacement of beams enlarging the kitchen windows facing the backyard & replacement of a door opening to the backyard. replace (e) floor joist in kitchen & addition of washer/dryer
Valuation:
$80,000
Permit #:
202011259754
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
28 - 2 family dwe...
Addition of 3rd floor master suite & remodel of 2nd floor kitchen bathroom. guestroom @ 1st floor
Valuation:
$400,000
Permit #:
201812188681
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
(n)2-story addition to rear; (n)basement; (n)bedrooms & bathrooms. renovate kitchen living room & roof deck. addition skylights. sprinkler nfpa 13 throughout
Valuation:
$260,364
Permit #:
201701268031
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Approx. 17.5 linear feet of reinforcing retaining wall that spans the east (rear) property line and will be anchored to the existing retaining wall
Valuation:
$45,000
Permit #:
202306069385
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
24 - apartments
New stair to serve all (e) floors. additon of (2) new dormers on the 3rd floor. addition new bathroom to the 3rd floor
Valuation:
$90,000
Permit #:
202312142557
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
4th fl - residential condo renovation 79 walter st - renovate (e) kitchen & dining room; renovate (e) bathroom; new full bathroom; reframe (e) ceiling and room. install new skylights
Valuation:
$50,000
Permit #:
202003126908
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
24 - apartments
Bathroom remodel. remodel (e) bathroom addition of a toilet replace (e) tub and sink w new. (n) electrical work to addition (n) light fixtures and 1 fan. relocate (e) door to (n) location
Valuation:
$30,000
Permit #:
202010247348
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
28 - 2 family dwe...
Kitchen remodel 1.5 bathroom remodel new water heater new w/d location 1 dishwasher 1 garbage disposal 1 range 2 exhaust fans under bpa 202011259754 and 202010247348
Valuation:
N/A
Permit #:
PP20211130736
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New 3 floors wiring 1 kitchen 1 laundry new upgrade service panel 200 amp. 60 lights 30 switches 60 receptacles 5 fans 1 dishwasher 1 garbage disposal 1 microwave 1 range 10 smoke detectors. 1 sump pump 1 car charger
Valuation:
N/A
Permit #:
E201909063962
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Kitchen and bathroom renovation. unit 2 renovation. window replacement like for like. voluntary seismic strengthening. (32 st ft infill addition under separate permit #2017-0324-2284.)
Valuation:
$180,000
Permit #:
201705035570
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
28 - 2 family dwe...
One new heat pump new wiring at basement new electrical water heater upgrade underground service to 200 amp one electric dryer
Valuation:
N/A
Permit #:
E202404193884
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Residential remodel replace windows and doors addition lightwell ground floor condition floor area in basement addition 1/2 bathroom. windows on west elevation (front) to be wood not clad
Valuation:
$300,000
Permit #:
201904026860
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Entire 3 story home new wiring/electrical. 80 lights 20 switches 80 receptacles 5 fans dishwasher garbage disposal microwave range 12 smoke detectors
Valuation:
N/A
Permit #:
E202103112053
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Renew pp20230125196. 1 catch basin 3 bathroom 1 1/2 bathroom 2 showere pans 1 water heater 1 heat pump and 1 kitchen
Valuation:
N/A
Permit #:
PP20240912920
Status:
expired
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Convert (e) garage into habitable space. replace foundation & slab. rebuild portion of (e) stair. replace (e) concrete stair
Valuation:
$120,000
Permit #:
201912300927
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
In-kind bathroom remodel at 1 bathroom replace existing plumbing and electrical fxitures. no structural work no framing modification
Valuation:
$32,000
Permit #:
202307242824
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
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J5 REAL ESTATE & DEVELOPMENT COMPANY License info
Verified License
| License # | NAT-121973-2 |
| Status | Active |
| Nation | Environmental Protection Agency |
| Type | Renovation |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for J5 REAL ESTATE & DEVELOPMENT COMPANY at the United States Environmental Protection Agency.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 530827 |
| Status | Inactive |
| State | California |
| Type | General Building |
| Business Type | Sole Ownership |
- 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 J5 REAL ESTATE & DEVELOPMENT COMPANY at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
104
BuildZoom Score
Bonded
| Bonded Agent | Financial Pacific Insurance Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | State Compensation Insurance Fund |
91
Permits
- Building permit records show that J5 REAL ESTATE & DEVELOPMENT COMPANY has worked on 91 permitted projects.
J5 REAL ESTATE & DEVELOPMENT COMPANY Employees
AJ
Ava Jamshidnejad
Continuance
AJ
Ava Jamshidnejad
Continuance
DJ
Davood Jamshidnejad
Sole Owner
DJ
Davood Jamshidnejad
Owner