Updated: Jul 13, 2026
Location and Projects
Address
193 HOPE ST, Stamford, CT, 06901
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Knight & Grabowski Construction LLC
Based in Stamford, Connecticut, Knight & Grabowski Construction LLC brings over three decades of experience to residential and commercial construction projects throughout the area. The company is noted for its specialization in restoring historic homes, focusing on returning properties to their original character and craftsmanship. Knight & Grabowski also develops custom homes, applying design theory to create spaces that mesh with the social, environmental, and historical context of local neighborhoods. The firm handles a range of project types, including home additions, kitchen remodels, office renovations, storefront updates, and hotel remodeling to meet evolving workplace or hospitality needs. In addition to new construction and remodeling, Knight & Grabowski maintains a portfolio of rental properties across multiple communities. The business is led by Don Knight, who is recognized for his ongoing relationships with clients and his role in project management and communication.
Knight & Grabowski Construction LLC Services
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Knight & Grabowski Construction LLC Contact Information
Phone Number: (203) 943-3422
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Address: 193 HOPE ST, Stamford, CT 06901
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Knight & Grabowski Construction LLC Stamford
Quality
97
82nd percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Knight & Grabowski Construction LLC has a BuildZoom score of 97, which places them above 82% of 12,093 contractors in Connecticut.
Activity
|
1 project
|
2023 |
Our building permit records indicate that Knight & Grabowski Construction LLC has worked on at least
1.0 project 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.
Pricing
|
1 project
|
$500k-$1mil |
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 Knight & Grabowski Construction LLC
This is a sample of this contractor's permits. Click here to access their complete permit history.
Interior alterations to 1st & 2nd floors. addition 2 new bathrooms. renovate 3 existing bathrooms. remodel kitchen and dining area
Valuation:
$300,000
Permit #:
B-22-156
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Interior alterations including: new laundry room/bathroom on ground floor open non structural walls on first floor to create more open layout renovate kitchen on 1st floor renovate master bathroom on 2nd floor install new windows throughout install new roof.***11/29/2021- adding air conditioning to scope of work-mtc***
Valuation:
$150,000
Permit #:
B-21-1241
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
New 2 story addition and alteration.***10/31/2022-hvac systems added to scope of work $12, 000.00 added cost-mtc****4/27/2023- the patio is pavers on stone dust and size as shown on as-built; there was modification of the contour of the existing landscape wall as shown on the as-built - we didn't addition any height or length to it nor did we change the width of the apron and original... see more
Valuation:
$350,000
Permit #:
B-22-612
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
2nd floor addition of bedroom, bathroom & office, alterations to kitchen, family room, master bedroom, & bathrooms, legitimize above ground pool and deck modifications. *07/11/2019 reveted forl lp tank location approval* trades needed for this jobsite project: electrical, plumbing and mechanical.
Valuation:
$232,325
Permit #:
B-18-1701
Status:
complete
Fee:
$3,115
Permit Type:
Additions - Resid...
Building Type:
Single Family
Construct approx 40 sqft addition to create breezeway between kitchen and family room; construct 2 new dormers on 2nd floor bedrooms; remodel kitchen; open wall between family room and dining room; remodel 1st floor & 2nd floor bathrooms****** trade permits required stamped print reproduced and left on site. ***8/10/2020-reverted for epb and zoning approvals to place condenser-mtc***
Valuation:
$75,000
Permit #:
B-20-477
Status:
issued
Fee:
$1,020
Permit Type:
Additions - resid...
Building Type:
Single family
Construct approx 40 sqft addition to create breezeway between kitchen and family room; construct 2 new dormers on 2nd floor bedrooms; remodel kitchen; open wall between family room and dining room; remodel 1st floor & 2nd floor bathrooms
Valuation:
$75,000
Permit #:
TB-20-477
Status:
filed
Fee:
$1,020
Permit Type:
Additions - resid...
Building Type:
Single family
New fema compliant 2 story s.f. dwelling with 5 bedrooms
Valuation:
$971,000
Permit #:
BLD-2021-04466
Status:
complete
Fee:
$9,962
Permit Type:
N/A
Building Type:
N/A
Construct 2 new single family townhomes 1042 sqft each [1 powder room, 4 bathrooms and 3 bedrooms], rehab existing single family home 877.7 sqft [1 powder room, 2 bathroom and 3 bedrooms. original pin #:tb-17-555 *** revised to finish the basement with a playroom andbathroom, install a wrap porch addition and window well to the existing single family home *** kdnr 10/24/2018 ** receiv... see more
Valuation:
$660,295
Permit #:
B-18-591
Status:
issued
Fee:
$8,789
Permit Type:
New Construction ...
Building Type:
Single Family
Interior alterations to kitchen, bathrooms & living room, addition of garage and bedroom. trades needed for this jobsite project: electrical, plumbing, and mechanical.*********** 9-19-19 revised to eliminate hall wall off dinning room and relocate interior entry door from garage. not doing rear over head door , but install rear hinged door.
Valuation:
$192,210
Permit #:
B-18-1751
Status:
issued
Fee:
$2,584
Permit Type:
Additions - Resid...
Building Type:
Single Family
Construct 3 new 3 story single family town homes
Valuation:
$1,100,000
Permit #:
B-19-1035
Status:
issued
Fee:
$14,611
Permit Type:
New construction ...
Building Type:
Single family
New 2 story addition interior layout renovations relocation of kitchen & 2 bathrooms addition of powder/laundry room
Valuation:
$100,000
Permit #:
TB-19-1907
Status:
filed
Fee:
$1,351
Permit Type:
Additions - resid...
Building Type:
Single family
Demolition only for interior sheetrock per demolition plans
Valuation:
$10,000
Permit #:
B-19-1096
Status:
issued
Fee:
$158
Permit Type:
Alterations - res...
Building Type:
Single family
Interior demolition *1/26/2017: permit reverted for the following: raise house; rear addition; and interior alterations,ext. mech. pad for a/c units new roof, new windows, & doors est cost: $1,200,000.00 need to revisit epb, & zoning *** 11/20/2017 revised to add a spiral staircase that goes to the flat roof *** kdnr
Valuation:
$1,217,000
Permit #:
B-16-2380
Status:
complete
Fee:
$16,162
Permit Type:
Additions - Resid...
Building Type:
Single Family
Whole house renovation; addition of new 2 car garage new laundry and mudroom enlarge kitchen; raise 1st floor wall/ceiling height to 10 feet; modify framing and roofline, addition deck off of kitchen
Valuation:
$600,000
Permit #:
B-19-1589
Status:
issued
Fee:
$7,981
Permit Type:
Additions - resid...
Building Type:
Single family
Whole house renovation; addition of new 2 car garage new laundry and mudroom enlarge kitchen; raise 1st floor wall/ceiling height to 10 feet; modify framing and roofline, addition deck off of kitchen
Valuation:
$600,000
Permit #:
TB-19-1589
Status:
filed
Fee:
$7,981
Permit Type:
Additions - resid...
Building Type:
Single family
Interior alterations including new first floor bathroom and relocation of mechanicals *8/11/16: reverted for revision of scope of work to include air conditioning & condensers not shown on plans. epb & zoning required for said revision. cost tbd by plan reviewer. 8/17/16 revise to remove replace gwb electrical & insulation and to rebuild fireplace. cost tbd at plan review
Valuation:
$93,580
Permit #:
B-16-6
Status:
complete
Fee:
$1,271
Permit Type:
Alterations - res...
Building Type:
Single family
Rough and finish electrical for interior interior alterations ***remove when provide license conractor and agent letter*** dear applicant, this application has been made incomplete because you have applied for an electrical permit with an home improvement registration. it is required to have a connecticut license contractor apply for a permit or he can provide an agent letter for some... see more
Valuation:
$7,500
Permit #:
TE-16-377
Status:
filed
Fee:
$0
Permit Type:
Electrical
Building Type:
Single Family
Interior alterations to first floor including new kitchen, new half bathroom/laundry, renovate full bath *5/25/17: prop/wpca taxes paid see attached
Valuation:
$75,000
Permit #:
B-17-616
Status:
complete
Fee:
$1,019
Permit Type:
Alterations - Res...
Building Type:
Single Family
First floor interior alterations including, relocation of powder room, relocation of basement stairs, enlarge dining room and remove demising wall between living room and guest room, renovate kit.
Valuation:
$124,165
Permit #:
B-16-749
Status:
issued
Fee:
$1,682
Permit Type:
Alterations - Res...
Building Type:
Single Family
Interior renovations to 1st floor to create master bedroom & bathroom - & remodel bedrooms/bath/living room kitchen & garage - repair roof and addition bedroom bathroom & playroom in basement sjs
Valuation:
$75,000
Permit #:
BLD-1995-53792
Status:
final
Fee:
$602
Permit Type:
N/A
Building Type:
N/A
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124
BZ Score
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Avg Project
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BZ Score
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Avg Project
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Projects
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BZ Score
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Avg Project
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Projects
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Knight & Grabowski Construction LLC License info
Verified License
| License # | NHC.0001959 |
| Status | Active |
| State | Connecticut |
| Type | New Home Contractor |
| Date Issued | 04-01-2026 |
- BuildZoom verified this license was active as of July 2026.
Verify this license's status for Knight & Grabowski Construction LLC at the Connecticut Department of Consumer Protection.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | HIC.0573048 |
| Status | Inactive |
| State | Connecticut |
| Type | Home Improvement Contractor |
- According to the Connecticut Department of Consumer Protection, 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 Knight & Grabowski Construction LLC at the Connecticut Department of Consumer Protection.
This is a sample of licensing data; click here to access a complete history.
97
BuildZoom Score
46
Permits
- Building permit records show that Knight & Grabowski Construction LLC has worked on 46 permitted projects.