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Design Firm
ALDERSON ENGINEERING
Design · filed under 2 names
1 project with open permitsMANHATTAN · 4BROOKLYN · 1
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3 buildings
16
Total Filings
5
Projects on File
3
Buildings Worked
1
Projects w/ Open Permits
Design
Role
Activity
Projects by first filing month5 projects all-time
0123Oct '19 · 2Dec '24 · 2Mar '26 · 12020202120222023202420252026
bars = month · line = 3-mo average
Portfolio status
Browse projects →
Open permit120%
Signed off480%
By project type
Alteration5
Most active buildings
All buildings →
25 11 AVENUEMANHATTAN · latest 08/06/2021
2 projects
99 PARK AVENUEMANHATTAN · latest 01/28/2025
2 projects
19 KENT AVENUEBROOKLYN · 1 open · latest 05/08/2026
1 projects
Key relationships
Everyone →
Design firms
2 projects
Filing representatives
2 projects
1 projects
Owners
2 projects
People
All people →
Neal Babcocklatest 06/17/2026
7 filings
HOWARD ALDERSONlatest 09/24/2020
2 filings
Filed under
ALDERSON ENGINEERING9Alderson Engineering7
Identified by the contact ids of the people who file for the firm and by its email domain (aldersonengineering.com), not by matching names.
Most recent projects
All projects →
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
B01364982 ↗19 KENT AVENUE
BROOKLYN
AlterationPermit Issued03/26/202605/08/2026
Contractor DENKO MECHANICAL INC
Filer GILLMAN CONSULTING INC
Hereby filing to replace and install plumbing fixtures with related piping as shown on plans filed herewith. NO change to use, occupancy or …
M01132314 ↗99 PARK AVENUE
MANHATTAN
AlterationSigned-off12/09/202401/28/2025
Contractor REAL PLUMBING CORP
Filer JAM CONSULTANTS, INC.
Sprinkler work related to Interior Renovation of new offices, collaboration areas, conference rooms and pantry.
M01130893 ↗99 PARK AVENUE
MANHATTAN
AlterationSigned-off12/09/202401/21/2025
Contractor JRM CONSTRUCTION MGMT LLC
Filer JAM CONSULTANTS, INC.
Plumbing work related to Interior Renovation of new offices, collaboration areas, conference rooms and pantry.
M00204612 ↗25 11 AVENUE
MANHATTAN
AlterationSigned-off10/24/201908/06/2021
Owner RXR REALTY
Contractor MACCARONE PLUMBING INC
Filer A1 EXPEDITING SERVICE CORP.
Modification to existing plumbing, sprinkler and standpipe systems as per plan filed herewith. No change in use, egress or occupancy under t…
M00204532 ↗25 11 AVENUE
MANHATTAN
AlterationSigned-off10/24/201901/07/2020
Owner RXR REALTY
Contractor RXR CONSTRUCTION SERV LLC
Filer A1 EXPEDITING SERVICE CORP.
Modification to existing HVAC system as per plans filed herewith. No change in use egress or occupancy under this application.
Counts cover all 5 projects (5 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
Neal Babcock706/17/2026
HOWARD ALDERSON209/24/2020
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
TANTILLO ARCHITECTURE LLC207/16/2026
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
REAL PLUMBING CORP212/09/2024
A&A PLUMBING CORP107/16/2026
DENKO MECHANICAL INC107/16/2026
FINALY GENL CONTR CORP107/16/2026
JRM CONSTRUCTION MGMT LLC112/09/2024
MACCARONE PLUMBING INC110/09/2020
RXR CONSTRUCTION & DEVELO110/05/2020
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
RXR REALTY210/09/2020
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
JAM CONSULTANTS, INC.212/09/2024
GILLMAN CONSULTING INC107/16/2026
5 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 5Open permit 1Signed off 4
5 projects
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
B01364982 ↗19 KENT AVENUE
BROOKLYN
AlterationPermit Issued03/26/202605/08/2026
Contractor DENKO MECHANICAL INC
Filer GILLMAN CONSULTING INC
Hereby filing to replace and install plumbing fixtures with related piping as shown on plans filed herewith. NO change to use, occupancy or …
M01132314 ↗99 PARK AVENUE
MANHATTAN
AlterationSigned-off12/09/202401/28/2025
Contractor REAL PLUMBING CORP
Filer JAM CONSULTANTS, INC.
Sprinkler work related to Interior Renovation of new offices, collaboration areas, conference rooms and pantry.
M01130893 ↗99 PARK AVENUE
MANHATTAN
AlterationSigned-off12/09/202401/21/2025
Contractor JRM CONSTRUCTION MGMT LLC
Filer JAM CONSULTANTS, INC.
Plumbing work related to Interior Renovation of new offices, collaboration areas, conference rooms and pantry.
M00204612 ↗25 11 AVENUE
MANHATTAN
AlterationSigned-off10/24/201908/06/2021
Owner RXR REALTY
Contractor MACCARONE PLUMBING INC
Filer A1 EXPEDITING SERVICE CORP.
Modification to existing plumbing, sprinkler and standpipe systems as per plan filed herewith. No change in use, egress or occupancy under t…
M00204532 ↗25 11 AVENUE
MANHATTAN
AlterationSigned-off10/24/201901/07/2020
Owner RXR REALTY
Contractor RXR CONSTRUCTION SERV LLC
Filer A1 EXPEDITING SERVICE CORP.
Modification to existing HVAC system as per plans filed herewith. No change in use egress or occupancy under this application.
Scope of Work
Sprinkler / Standpipe — 1 project · most recent 07/16/2026
Sprinkler System
Plumbing — 1 project · most recent 07/16/2026
Water/Sanitary
Click a row for this entity's own projects, plans and documents at that building.
BuildingFilingsMost Recent
19 KENT AVENUE ↗406/17/2026
25 11 AVENUE ↗909/24/2020
99 PARK AVENUE ↗3—
▾Documents — 104 on file (BIS + DOB NOW)
▸Plans & Drawings31
▸DOB NOWPlans/Sketch11
08/25/2026M01132314-I1 · 99 PARK AVENUERequest digital key ↗
08/25/2026M01130893-S1 · 99 PARK AVENUERequest digital key ↗
08/25/2026M01130893-I1 · 99 PARK AVENUERequest digital key ↗
Showing 3 of 11 on file for this type
▸DOB NOWPlans/Sketch - Plumbing6
09/05/2026M00204612-P3 · 25 11 AVENUERequest digital key ↗
09/05/2026M00204612-P1 · 25 11 AVENUERequest digital key ↗
Showing 2 of 6 on file for this type
▸DOB NOWPlans/Sketch - Sprinkler6
09/05/2026M00204612-P3 · 25 11 AVENUERequest digital key ↗
09/05/2026M00204612-P1 · 25 11 AVENUERequest digital key ↗
09/05/2026M00204612-P6 · 25 11 AVENUERequest digital key ↗
Showing 3 of 6 on file for this type
▸DOB NOWPlans/Sketch - Standpipe6
09/05/2026M00204612-P3 · 25 11 AVENUERequest digital key ↗
09/05/2026M00204612-P1 · 25 11 AVENUERequest digital key ↗
09/05/2026M00204612-P6 · 25 11 AVENUERequest digital key ↗
Showing 3 of 6 on file for this type
▸DOB NOWPlans/Sketch - Mechanical Systems2
09/05/2026M00204532-I1 · 25 11 AVENUERequest digital key ↗
08/15/2026M00204532-P1 · 25 11 AVENUERequest digital key ↗
▸Seals & Professional Certifications58
▸DOB NOWSpecial Inspector Seal & Signature23
09/30/2026M00204612-P9 · 25 11 AVENUEOpen ↗
09/30/2026M00204612-P9 · 25 11 AVENUEOpen ↗
09/02/2026B01364982-S3 · 19 KENT AVENUEOpen ↗
Showing 3 of 23 on file for this type
▸DOB NOWProgress Inspector Seal & Signature18
09/01/2026M01130893-I1 · 99 PARK AVENUEOpen ↗
09/01/2026M01130893-I1 · 99 PARK AVENUEOpen ↗
09/01/2026M01130893-I1 · 99 PARK AVENUEOpen ↗
Showing 3 of 18 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature17
09/05/2026M00204532-I1 · 25 11 AVENUEOpen ↗
09/05/2026M00204532-P1 · 25 11 AVENUEOpen ↗
09/05/2026M00204612-P3 · 25 11 AVENUEOpen ↗
Showing 3 of 17 on file for this type
▸Environmental & Asbestos15
▸DOB NOWDEP ACP-5: Asbestos Assessment Report12
09/05/2026M00204532-P1 · 25 11 AVENUEOpen ↗
09/05/2026M00204532-I1 · 25 11 AVENUEOpen ↗
09/05/2026M00204612-P6 · 25 11 AVENUEOpen ↗
Showing 3 of 12 on file for this type
▸DOB NOWOER: Notice to Proceed3
08/13/2026M01130893-S2 · 99 PARK AVENUEOpen ↗
08/13/2026M01130893-S1 · 99 PARK AVENUEOpen ↗
Showing 2 of 3 on file for this type