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Location and Projects

Address
21847 KOONTZ WAY, Topanga, CA, 90290
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the Harper Group Construction

the Harper Group Inc, 21847 Koontz Way, Topanga, CA (Employees: Karen Eileen Harper, Zon Harper, and Zon Harper) holds a General Building license according to the California license board.

Their BuildZoom score of 100 ranks in the top 13% of 336,931 California licensed contractors.

Their license was verified as active when we last checked. If you are thinking of hiring the Harper Group Inc, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.

the Harper Group Inc Contact Information

Phone: (310) 435-1090 Edit
Address: 21847 KOONTZ WAY, Topanga, CA 90290 Edit

the Harper Group Inc Topanga

Quality

100
87th percentile
How is the BuildZoom score calculated?
Pro tip: We generally recommend hiring a contractor with a score higher than 95.
the Harper Group Inc has a BuildZoom score of 100, which places them above 87% of 336,931 contractors in California.

Activity

4 projects
 2025
1 project
 2024
2 projects
 2023
Our building permit records indicate that the Harper Group Inc has worked on at least 7.0 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.

Pricing

1 project
 < $5k
4 projects
 $5k-$20k
1 project
 $50k-$100k
1 project
 $100k-$250k
Value Not Public: 2.0 projects
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 the Harper Group Inc

Sort by: Notable Notable | Date Date | Job Value Job Value

This is a sample of this contractor's permits. Click here to access their complete permit history.

Bldg-alter/repair
505 N Radcliffe Ave, Pacific Palisades, CA, 90272
2025-07-01
10 window(s). window and 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. re-stucco for residential buildings. area = 3200 sqft. 9 door(s). window and door ch... see more
Valuation:
$64,350
Permit #:
25016-90000-20752
Status:
issued
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Bldg-alter/repair
10557 W Bradbury Rd, Los Angeles, CA, 90064
2025-05-01
Addition sill plate anchor bolts and plywood to cripple walls (if existing) per la city standard plan #1; no foundation replacement (earthquake hazard reduction per chapter 92 of the los angeles building code). (houses residential buildings up to 3 stories and up to 4 units)
Valuation:
$18,500
Permit #:
24016-90000-36047
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Bldg-alter/repair
2670 N Basil Ln, Los Angeles, CA, 90077
2025-03-26
Water damage termite damage dry rot repair less than 10% of replacement cost of residential buildings
Valuation:
$10,000
Permit #:
25016-90000-04324
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Bldg-alter/repair
10470 W Charing Cross Rd, Los Angeles, CA, 90024
2025-06-30
Kitchen remodel for residential buildings (no structural changes)
Valuation:
$150,000
Permit #:
25016-90000-20595
Status:
issued
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Bldg-addition
3210 E Drury Ln, Los Angeles, CA, 90039
2023-04-10
Supplemental to 21014-20000-01711 to increase size (129 sf) of adu per lamc 12.22 a.33(c) and (e) and to remove fire sprinklers from structural inventory
Valuation:
$10,000
Permit #:
21014-20001-01711
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Bldg-alter/repair
15433 W Brownwood Pl, Los Angeles, CA, 90077
2021-08-02
Replace drywall/plaster (patch and paint). non-structural repair only. interior bathroom remodel/repair (no changes in walls or openings). replace damaged wood framing (less than 10%). same size spacing type
Valuation:
$22,800
Permit #:
21016-90000-12632
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Bldg-addition
10415 W Lindbrook Dr, Los Angeles, CA, 90024
2019-01-12
Addition & remodel ( e ) two story single family dwelling : addition to & enlarge kitchen remodel family dining and powder rooms at 1st floor ; convert projection room to laundry room at 2nd floor ; new skylight over kitchen & family room
Valuation:
$178,000
Permit #:
16014-10000-05617
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Plumbing
15430 W Brownwood Pl, Los Angeles, CA, 90077
2021-04-28
New gas line supplying backup generator water heater and pool heater
Valuation:
N/A
Permit #:
21042-90000-07508
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Plumbing
15430 W Brownwood Pl, Los Angeles, CA, 90077
2021-04-01
New gas line to backup generator. replace gas line to pool heater
Valuation:
N/A
Permit #:
21042-90000-06380
Status:
issued
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Electrical
1756 N Micheltorena St, Los Angeles, CA, 90026
2023-05-16
Additional lights and electric car charger circuit
Valuation:
N/A
Permit #:
23041-90000-20767
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Hvac
1756 N Micheltorena St, Los Angeles, CA, 90026
2023-05-16
Upgrade hvac system in one zone of the house
Valuation:
N/A
Permit #:
23044-90000-05757
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Hvac
15433 W Brownwood Pl, Los Angeles, CA, 90077
2021-08-02
Install new ductwork for 1500sf area
Valuation:
N/A
Permit #:
21044-90000-04805
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Electrical
15430 W Brownwood Pl, Los Angeles, CA, 90077
2021-04-28
Install 20kw backup generator
Valuation:
N/A
Permit #:
21041-90000-12123
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Electrical
15433 W Brownwood Pl, Los Angeles, CA, 90077
2021-08-02
New sub panel and rewiring
Valuation:
N/A
Permit #:
21041-90000-18651
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Hvac
15430 W Brownwood Pl, Los Angeles, CA, 90077
2020-03-04
Replace 1 ton mini split air conditioner
Valuation:
N/A
Permit #:
20044-90000-02638
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Plumbing
15433 W Brownwood Pl, Los Angeles, CA, 90077
2021-08-02
Re-pipe
Valuation:
N/A
Permit #:
21042-90000-09728
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Hvac
10415 W Lindbrook Dr, Los Angeles, CA, 90024
2018-05-03
Replace existing 1st floor hvac system with (2) 3ton units
Valuation:
N/A
Permit #:
17044-90000-12634
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Bldg-alter/repair
3931 N Kingswood Rd, Sherman Oaks, CA, 91403
2024-01-12
Addition sill plate anchor bolts and plywood to cripple walls (if existing) per la city standard plan #1; no foundation replacement (earthquake hazard reduction per chapter 92 of the los angeles building code). (houses residential buildings up to 3 stories and up to 4 units)
Valuation:
$8,000
Permit #:
23016-90000-01270
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Bldg-alter/repair
707 N Amalfi Dr, Pacific Palisades, CA, 90272
2014-11-03
Replace 8 window(s). same size location number type. replace 12 door(s). same size location number type. replace drywall/plaster (patch and paint). non-structural repair only. interior bathroom remodel/repair (no changes in walls or openings)
Valuation:
$72,200
Permit #:
14016-90000-10469
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Bldg-addition
3210 E Drury Ln, Los Angeles, CA, 90039
2023-04-15
1'2"x1'2 & 1'2"x2'0 additions and remodel to (e) single family dwelling and convert the 18'7"x19'7 garage to adu per lamc 12.22 a.33(c) and (e)
Valuation:
$100,000
Permit #:
21014-20000-01711
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A

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