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Design Firm
Hayduk Engineering, LLC
Design
1 project with open permitsMANHATTAN · 2
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1 building
2
Total Filings
2
Projects on File
1
Buildings Worked
1
Projects w/ Open Permits
Design
Role
Activity
Projects by first filing month2 projects all-time
0112Jun '25 · 1Jan '26 · 1Jun '25Jul '25Aug '25Sep '25Oct '25Nov '25Dec '25Jan '26
bars = month · line = 3-mo average
Portfolio status
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Open permit150%
Filed only150%
By project type
Alteration2
Most active buildings
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401 SOUTH END AVENUEMANHATTAN · 1 open · latest 06/25/2026
2 projects
Key relationships
Everyone →
Design firms
2 projects
1 projects
Filing representatives
2 projects
Contractors
1 projects
TURNER EE CRUZ A JOINT
1 projects
People
All people →
Stephen Clufflatest 07/09/2025
2 filings
Filed under
Hayduk Engineering, LLC2
Identified by the contact ids of the people who file for the firm and by its email domain (haydukengineering.com), not by matching names.
Most recent projects
All projects →
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
M01236760 ↗401 SOUTH END AVENUE
MANHATTAN
AlterationPermit Issued06/07/202506/25/2026
Owner BATTERY PARK CITY AUTHORITY
Contractor MPC PLUMBING & HEATING INC
Filer BOYD CONSULTING, INC
Remove/replace private drainage in Pumphouse Park; install new 12 drain to existing watercourse; reconfigure drainage to separate protected …
M01252535 ↗401 SOUTH END AVENUE
MANHATTAN
AlterationFiled — no permit on record01/16/2026—
Owner BATTERY PARK CITY AUTHORITY
Filer BOYD CONSULTING, INC
—
Counts cover all 2 projects (2 DOB NOW). Dated by first filing; BIS projects by first permit issuance.
Every person filing for this firm, identified by their DOB NOW contact id (one id is one person). A person is listed under the firm they file for most.
PersonFilingsMost recent
Stephen Cluff207/09/2025
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
CALLISONRTKL206/22/2026
HIRANI106/22/2026
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
MADISON PIPE CONSULT INC104/27/2026
TURNER EE CRUZ A JOINT104/27/2026
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
BATTERY PARK CITY AUTHORITY206/22/2026
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
BOYD CONSULTING, INC206/22/2026
2 DOB NOW projects, anchored the same way as Buildings Worked. Status is the project's permit state today: open = at least one permit currently issued. BIS projects show their raw permit status and are not counted as open.
All 2Open permit 1Filed only 1
2 projects
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
M01236760 ↗401 SOUTH END AVENUE
MANHATTAN
AlterationPermit Issued06/07/202506/25/2026
Owner BATTERY PARK CITY AUTHORITY
Contractor MPC PLUMBING & HEATING INC
Filer BOYD CONSULTING, INC
Remove/replace private drainage in Pumphouse Park; install new 12 drain to existing watercourse; reconfigure drainage to separate protected …
M01252535 ↗401 SOUTH END AVENUE
MANHATTAN
AlterationFiled — no permit on record01/16/2026—
Owner BATTERY PARK CITY AUTHORITY
Filer BOYD CONSULTING, INC
—
Scope of Work
HVAC — 2 projects · most recent 06/22/2026
Others Ventilation Systems
Plumbing — 2 projects · most recent 06/22/2026
Storm Water/Sanitary
Structural — 2 projects · most recent 06/22/2026
Steel Concrete
Click a row for this entity's own projects, plans and documents at that building.
BuildingFilingsMost Recent
401 SOUTH END AVENUE ↗207/09/2025
▾Documents — 108 on file (BIS + DOB NOW)
▸Plans & Drawings12
▸DOB NOWPlans/Sketch12
08/19/2026M01252535-S1 · 401 SOUTH END AVENUERequest digital key ↗
Showing 1 of 12 on file for this type
▸Seals & Professional Certifications43
▸DOB NOWSpecial Inspector Seal & Signature21
08/30/2026M01236760-S4 · 345 SOUTH END AVENUEOpen ↗
08/30/2026M01236760-S4 · 345 SOUTH END AVENUEOpen ↗
08/30/2026M01236760-S2 · 345 SOUTH END AVENUEOpen ↗
Showing 3 of 21 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature12
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 12 on file for this type
▸DOB NOWProgress Inspector Seal & Signature10
08/30/2026M01236760-S2 · 345 SOUTH END AVENUEOpen ↗
08/30/2026M01236760-S2 · 345 SOUTH END AVENUEOpen ↗
08/28/2026M01252535-S4 · 401 SOUTH END AVENUEOpen ↗
Showing 3 of 10 on file for this type
▸Environmental & Asbestos12
▸DOB NOWDEP ACP-5: Asbestos Assessment Report12
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 12 on file for this type
▸Inspections & Test Reports5
▸DOB NOWSOIL REPORT3
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 3 on file for this type
▸DOB NOWTR4 Test Report and Plot Diagram2
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 2 on file for this type
▸Approvals, Objections & Sign-offs33
▸DOB NOWFee Exempt Supporting Document - DOF ACRIS report or BIB letter12
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 12 on file for this type
▸DOB NOWDesign Commission Approval City Owned (Exterior Work)12
08/19/2026M01252535-P1 · 401 SOUTH END AVENUEOpen ↗
Showing 1 of 12 on file for this type
▸DOB NOWDesign Commission Sign Off City Owned (Exterior Work)9
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 9 on file for this type
▸Other Documents3
▸DOB NOWAdjoining Owners Notification2
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 2 on file for this type
▸DOB NOWFlood Plan Emergency Temporary Flood Shields1
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 1 on file for this type