868 Boston Post Rd
Darien, CT2 jobs on record2024Miscellaneous
Miscellaneous.
$2KView all 2 jobs
- 2024Miscellaneous
Miscellaneous.
$2K - 2024Addition
Commercial additions and alterations.
$60K
Local provider profile
Karol Kostrzewski
Documented work across Connecticut based on attributed municipal records.
Jobs on record16Recorded in our system
Reported work volume$4.6MDocumented jobs
Average project$328KWhere values are reported
First observed2017Available dataset
Categories6Observed work types
Enriched provider details
Provider information
Supplemental data supplied by FullContact and stored separately from public records.
FullContact query stored 2026.
Work history
Documented work by property
Individual records are grouped by address. Totals include only values reported in public records and may not equal final construction cost.
1 Swifts Ln
Darien, CT2024Addition
Residential additions and alterations.
$950K12 Scout Trl
Darien, CT2024Dwelling
Dwelling.
$1.1M6 Hunters Ln
Norwalk, CT2024Addition
2 story addition over existing footprint over garage, new bathroom, closet, 11 new windows and new entrance.
$200K9 Little Brook Rd
Norwalk, CT2023Renovation
Interior renovations to the first-floor kitchen, 1 full bathroom, and ½ bath; add a laundry room; second floor over the existing footprint, with 2 full bathrooms and 3 bedrooms.
$350K104 Meadow
Greenwich, CT2022Plumbing
PLU
104 Meadow Rd
Greenwich, CT2022Mechanical
HVAC Work
46 Nathan Hale Dr
Stamford, CT2022Building Permit
Kitchen remodeling and closing in the side porch to make it living space using the existing foundation.
$95K104 Meadow Rd 1353 King
Greenwich, CT2022BUI - Residential F/O -
Add To Alter New
$1.4M227 Hollow Tree Ridge Rd
Darien, CT2 jobs on record2022Finish Space - Attic/Basement
Finish space in attic and basement.
$75KView all 2 jobs
- 2022Finish Space - Attic/Basement
Finish space in attic and basement.
$75K - 2021Renovation
Kitchen and Power Room Remodel.
$73K
3 Waterbury Ln
Darien, CT2021Renovation
Kitchen Remodel.
$90K199 Ely Ave
Norwalk, CT2020Demolition
Demo 2 car detached carage.
$4K201 Ely Ave
Norwalk, CT2019Renovation
Reconfigure exist. single-family residence with 1st and second floor additions - first floor includes kitchen, liv. Room, dining room, 1 bedroom with full bath, laundry and side covered porch. - second floor includes 2 bedrms, 1 full bath and master suite - attic to remain unf. - no changes to front porch or front of house. Bsmt. Unf.
$175K15 Getner Trl
Norwalk, CT2017Renovation
Construct a 16-by-16-foot rear deck for a single-family residence.
$12K