Updated: Feb 11, 2026
Location and Projects
Address
19 UNION SQUARE WEST, New York, NY, 10003
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Catalyst 77 Construction
Based in New York, NY, Catalyst 77 LLC has operated for 19 years, focusing on residential and commercial renovation projects throughout Manhattan and the greater New York City area. The firm is experienced in managing interior renovations, including apartment remodels and office fit-outs. Catalyst 77 LLC works with property owners seeking to modernize layouts, upgrade finishes, or improve functionality in urban buildings. The company coordinates all phases of construction, from initial demolition to finishing details, and oversees subcontractors to maintain project schedules. Portfolio examples include kitchen and bathroom reconfigurations, custom millwork installations, and open-plan conversions within co-op and condominium buildings. With nearly two decades serving the New York real estate market, Catalyst 77 LLC is familiar with the regulatory and logistical challenges unique to city environments, including navigating building approvals and delivering projects in high-density neighborhoods.
Catalyst 77 LLC Services
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Catalyst 77 LLC Contact Information
Phone Number: (917) 468-0746
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Address: 19 UNION SQUARE WEST, New York, NY 10003
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Catalyst 77 LLC New York
Quality
99
85th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Catalyst 77 LLC has a BuildZoom score of 99, which places them above 85% of 77,888 contractors in New York.
Activity
|
2 projects
|
2024 |
Our building permit records indicate that Catalyst 77 LLC has worked on at least
2.0 projects over the past 2 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
|
2 projects
|
$20k-$50k |
|
1 project
|
$100k-$250k |
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.
This is a sample of this contractor's permits. Click here to access their complete permit history.
Propose interior renovation of an existing ph apartment and removal of non-load bearing walls as per plans submitted herewith. plumbing and mechanical are to be filed subsequently
Valuation:
$106,400
Permit #:
B00898576-I1-GC
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Propose to replace split havc unit ducting and bathroom exhaust fans as per plans submitted herewith
Valuation:
$22,500
Permit #:
B00898576-S2-MS
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Renovation of the existing commercial space. no change to use occupancy or egress
Valuation:
$40,000
Permit #:
Q00893479-I1-GC
Status:
approved
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
140875426-01-EW-OT
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
120782117-01-EW-OT
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
121022954-01-EW-OT
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
121022954-01-EW-MH
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
110415373-01-EW-OT
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
140839635-01-EW-OT
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
140839635-01-EW-MH
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
120928489-01-EW-OT
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
120746997-01-EW-OT
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
120746997-01-EW-MH
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
120823314-01-EW-MH
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
120808475-01-EW-MH
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
120782126-01-EW-OT
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
110415382-01-EW-MH
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Alteration type 2 - gen. constr installation of interior partitions, new ceiling, doors, installation of plumbing fixtures, related piping install partitions to provide additional fire rating to existing mechanical removal remove all existing drop ceiling construction and provide new 2 hour rated intumescent pain finish changes on finishes at 1 fl.elevator obby as per plans filed here... see more
Valuation:
$60,000
Permit #:
120782117-01-EW-OT
Status:
issued
Fee:
$707
Permit Type:
N/A
Building Type:
K2-store building
No Description Available
Valuation:
N/A
Permit #:
110415097-01-EW-OT
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
120182275-01-EQ-FN
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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Verified License
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Catalyst 77 LLC License info
Verified License
| License # | NAT-F242263-1 |
| Status | Active |
| Nation | Environmental Protection Agency |
| Type | Renovation |
- BuildZoom verified this license was active as of January 2026.
Verify this license's status for Catalyst 77 LLC at the United States Environmental Protection Agency.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | LBP-F242263-1 |
| Status | Inactive |
| Nation | Environmental Protection Agency |
| Type | Lead Abatement, Renovation |
- According to the United States Environmental Protection Agency, 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 Catalyst 77 LLC at the United States Environmental Protection Agency.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 039295 |
| Status | Inactive |
| State | New York |
| Type | General Contractor Non Registered |
- According to the New York City Department of Buildings, 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 Catalyst 77 LLC at the New York City Department of Buildings.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 39295 |
| Status | Inactive |
| State | New York |
- According to the New York City Department of Buildings, 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 Catalyst 77 LLC at the New York City Department of Buildings.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 608149 |
| Status | Inactive |
| State | New York |
| Type | General Contractor Non Registered |
- According to the New York City Department of Buildings, 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 Catalyst 77 LLC at the New York City Department of Buildings.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 603056 |
| Status | Inactive |
| State | New York |
| Type | General Contractor Non Registered |
- According to the New York City Department of Buildings, 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 Catalyst 77 LLC at the New York City Department of Buildings.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 13VH07088700 |
| Status | Inactive |
| State | New Jersey |
| Type | Home Improvement Contractor |
- According to the New Jersey Department of Law & Public Safety, 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 Catalyst 77 LLC at the New Jersey Department of Law & Public Safety.
This is a sample of licensing data; click here to access a complete history.
99
BuildZoom Score
Insured
| Insurer | Indian Harbor Ins. Co |
Insured
| Workers Comp Provider | New York State Ins. Fund |
19
Permits
- Building permit records show that Catalyst 77 LLC has worked on 19 permitted projects.
Catalyst 77 LLC Employees
RC
Robert Charles
Owner