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Design Firm
RJC Engineers
Design · filed under 3 names
5 projects with open permitsMANHATTAN · 6BRONX · 1
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5 buildings
9
Total Filings
7
Projects on File
5
Buildings Worked
5
Projects w/ Open Permits
Design
Role
Activity
Projects by first filing month7 projects all-time
0123Sep '23 · 1Jan '24 · 1Oct '25 · 1Mar '26 · 2Aug '26 · 2202420252026
bars = month · line = 3-mo average
Portfolio status
Browse projects →
Open permit571%
Filed only229%
By project type
Alteration7
Most active buildings
All buildings →
655 5 AVENUEMANHATTAN · 1 open · latest 08/11/2026
2 projects
659 5 AVENUEMANHATTAN · 1 open · latest 08/10/2026
2 projects
645 MADISON AVENUEMANHATTAN · 1 open · latest 01/02/2024
1 projects
1841 BROADWAYMANHATTAN · 1 open · latest 11/14/2025
1 projects
500 GRAND CONCOURSEBRONX · 1 open · latest 05/05/2026
1 projects
Key relationships
Everyone →
Owners
2 projects
1 projects
1 projects
People
All people →
5 filings
Stephan Kordtlatest 03/26/2024
3 filings
Lakshman Prateek Tayilatest 04/04/2024
1 filings
Filed under
RJC Engineers5RJC ENGINEERS, LLC3RJC ENGINEERS1
Identified by the contact ids of the people who file for the firm and by its email domain (rjcengineers.com), not by matching names.
Most recent projects
All projects →
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
M01409958 ↗655 5 AVENUE
MANHATTAN
AlterationFiled — no permit on record08/11/2026—
Owner VORNADO REALTY TRUST
Filer A1 EXPEDITING SERVICE CORP.
—
M01411247 ↗659 5 AVENUE
MANHATTAN
AlterationFiled — no permit on record08/10/2026—
Filer A1 EXPEDITING SERVICE CORP.
—
X01292695 ↗500 GRAND CONCOURSE
BRONX
AlterationPermit Issued10/23/202505/05/2026
Owner CUNY
Contractor SHARAN BUILDERS INC
Filer SUPERSTRUCTURES ENG + ARCH
HOSTOS COMMUNITY COLLEGE, BUILDING B SELECTIVE REMOVAL OF EXTERIOR BRICK VENEER, INCLUDING INSTALLATION OF PROTECTION/DEBRIS NETTING AND TA…
M01357500 ↗655 5 AVENUE
MANHATTAN
AlterationPermit Issued03/06/202605/01/2026
Owner VORNADO REALTY TRUST
Contractor MICHILLI INC
Filer A1 EXPEDITING SERVICE CORP.
demolition of the existing staircase and replacement with a new staircase. A new non-load-bearing party wall separating building no. 655 fro…
M01357509 ↗659 5 AVENUE
MANHATTAN
AlterationPermit Issued03/11/202604/13/2026
Contractor MICHILLI INC
Filer A1 EXPEDITING SERVICE CORP.
The project includes the installation of new steel beams to close existing floor openings at the second and third floors. A new non-load-bea…
M00988979 ↗1841 BROADWAY
MANHATTAN
AlterationPermit Issued01/26/202411/14/2025
Contractor LEVEL 5 RETAIL CONS
Filer JAM CONSULTANTS, INC.
LADY M-- STRUCTURAL MODIFICATIONS RELATED TO EQUIPMENT SUPPORT AND FLOORING AS PER PLANS FILED.
Counts cover all 7 projects (7 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
Alberto Marquez Castilleja506/03/2026
Stephan Kordt303/26/2024
Lakshman Prateek Tayi104/04/2024
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
4 S.T.E.L. Engineering104/08/2024
GENSLER105/13/2024
HNY CONSULTING ENGINEERS LLC105/13/2024
STRASS-MAGUIRE & ASSOCIATES INC.105/13/2024
SUPERSTRUCTURES ENG. + ARCH.104/13/2026
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
MICHILLI INC203/11/2026
ARCO PLBG AND HTG INC105/13/2024
JRM CONSTRUCTION MGMT LLC105/13/2024
LEVEL 5 RETAIL CONS INC104/08/2024
SHARAN BUILDERS INC104/13/2026
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
VORNADO REALTY TRUST208/11/2026
COLLIERS105/13/2024
CUNY104/13/2026
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
A1 EXPEDITING SERVICE CORP.408/11/2026
JAM CONSULTANTS, INC.104/08/2024
PROJECT TACTICAL SOLUTIONS105/13/2024
SUPERSTRUCTURES ENG + ARCH104/13/2026
7 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 7Open permit 5Filed only 2
7 projects
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
M01409958 ↗655 5 AVENUE
MANHATTAN
AlterationFiled — no permit on record08/11/2026—
Owner VORNADO REALTY TRUST
Filer A1 EXPEDITING SERVICE CORP.
—
M01411247 ↗659 5 AVENUE
MANHATTAN
AlterationFiled — no permit on record08/10/2026—
Filer A1 EXPEDITING SERVICE CORP.
—
X01292695 ↗500 GRAND CONCOURSE
BRONX
AlterationPermit Issued10/23/202505/05/2026
Owner CUNY
Contractor SHARAN BUILDERS INC
Filer SUPERSTRUCTURES ENG + ARCH
HOSTOS COMMUNITY COLLEGE, BUILDING B SELECTIVE REMOVAL OF EXTERIOR BRICK VENEER, INCLUDING INSTALLATION OF PROTECTION/DEBRIS NETTING AND TA…
M01357500 ↗655 5 AVENUE
MANHATTAN
AlterationPermit Issued03/06/202605/01/2026
Owner VORNADO REALTY TRUST
Contractor MICHILLI INC
Filer A1 EXPEDITING SERVICE CORP.
demolition of the existing staircase and replacement with a new staircase. A new non-load-bearing party wall separating building no. 655 fro…
M01357509 ↗659 5 AVENUE
MANHATTAN
AlterationPermit Issued03/11/202604/13/2026
Contractor MICHILLI INC
Filer A1 EXPEDITING SERVICE CORP.
The project includes the installation of new steel beams to close existing floor openings at the second and third floors. A new non-load-bea…
M00988979 ↗1841 BROADWAY
MANHATTAN
AlterationPermit Issued01/26/202411/14/2025
Contractor LEVEL 5 RETAIL CONS
Filer JAM CONSULTANTS, INC.
LADY M-- STRUCTURAL MODIFICATIONS RELATED TO EQUIPMENT SUPPORT AND FLOORING AS PER PLANS FILED.
M00923467 ↗645 MADISON AVENUE
MANHATTAN
AlterationPermit Issued09/29/202301/02/2024
Owner COLLIERS
Contractor JRM CONSTRUCTION MGMT LLC
Filer PROJECT TACTICAL SOLUTIONS
STRUCTURAL WORK TO INCLUDE STRUCTURAL FRAMING FOR NEW FACADE AT STREET LEVEL RETAIL TENANT. EXTERIOR ALUMINUM AND GLASS STOREFRONT FILED BY …
Scope of Work
HVAC — 1 project · most recent 05/13/2024
Heating and Air Conditioning Systems
Sprinkler / Standpipe — 1 project · most recent 05/13/2024
Sprinkler System
Plumbing — 1 project · most recent 05/13/2024
Water/Sanitary
Structural — 7 projects · most recent 08/11/2026
Steel Concrete Masonry
Click a row for this entity's own projects, plans and documents at that building.
BuildingFilingsMost Recent
659 5 AVENUE ↗206/03/2026
655 5 AVENUE ↗206/01/2026
500 GRAND CONCOURSE ↗104/06/2026
1841 BROADWAY ↗104/04/2024
645 MADISON AVENUE ↗303/26/2024
▾Documents — 89 on file (BIS + DOB NOW)
▸Plans & Drawings21
▸DOB NOWPlans/Sketch21
08/27/2026M00988979-P1 · 1841 BROADWAYRequest digital key ↗
08/27/2026M00988979-I1 · 1841 BROADWAYRequest digital key ↗
08/27/2026M00923467-S4 · 645 MADISON AVENUERequest digital key ↗
Showing 3 of 21 on file for this type
▸Seals & Professional Certifications46
▸DOB NOWDPL-1: Design Professional Seal & Signature21
08/27/2026M00988979-I1 · 1841 BROADWAYOpen ↗
08/27/2026M00988979-P1 · 1841 BROADWAYOpen ↗
08/27/2026M00923467-S3 · 645 MADISON AVENUEOpen ↗
Showing 3 of 21 on file for this type
▸DOB NOWProgress Inspector Seal & Signature13
09/01/2026M00923467-S6 · 645 MADISON AVENUEOpen ↗
08/31/2026X01292695-I1 · 500 GRAND CONCOURSEOpen ↗
08/28/2026M00923467-S5 · 645 MADISON AVENUEOpen ↗
Showing 3 of 13 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature12
09/25/2026M00923467-S4 · 645 MADISON AVENUEOpen ↗
09/01/2026M00923467-S6 · 645 MADISON AVENUEOpen ↗
09/01/2026M00923467-P1 · 645 MADISON AVENUEOpen ↗
Showing 3 of 12 on file for this type
▸Environmental & Asbestos17
▸DOB NOWDEP ACP-5: Asbestos Assessment Report17
08/27/2026M00923467-S3 · 645 MADISON AVENUEOpen ↗
08/27/2026M00923467-S2 · 645 MADISON AVENUEOpen ↗
08/18/2026M01357509-I1 · 659 5 AVENUEOpen ↗
Showing 3 of 17 on file for this type
▸Approvals, Objections & Sign-offs4
▸DOB NOWFee Exempt Supporting Document - DOF ACRIS report or BIB letter2
08/13/2026X01292695-S1 · 500 GRAND CONCOURSEOpen ↗
08/13/2026X01292695-I1 · 500 GRAND CONCOURSEOpen ↗
▸DOB NOWDEP Variance (V5) letter2
08/17/2026X01292695-I1 · 500 GRAND CONCOURSEOpen ↗
08/17/2026X01292695-S1 · 500 GRAND CONCOURSEOpen ↗
▸Other Documents1
▸DOB NOWPARTIAL DEMO: 10-DAY Notice1
08/17/2026X01292695-S1 · 500 GRAND CONCOURSEOpen ↗