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Design Firm
PETER DERR PE
Design
QUEENS · 2BROOKLYN · 2
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3 buildings
12
Total Filings
4
Projects on File
3
Buildings Worked
0
Projects w/ Open Permits
Design
Role
Activity
Projects by first filing month4 projects all-time
0112Aug '19 · 1Feb '21 · 1Mar '21 · 1Nov '21 · 1Aug '19Nov '19Feb '20May '20Aug '20Nov '20Feb '21May '21Aug '21Nov '21
bars = month · line = 3-mo average
Portfolio status
Browse projects →
Signed off250%
Filed only250%
By project type
Alteration4
Most active buildings
All buildings →
284 MANHATTAN AVENUEBROOKLYN · latest 03/05/2021
2 projects
35-11 9 STREETQUEENS · latest 09/20/2019
1 projects
70-32 84 STREETQUEENS · latest 12/20/2024
1 projects
Key relationships
Everyone →
Filing representatives
1 projects
1 projects
People
All people →
PETER DERRlatest 06/10/2021
10 filings
Filed under
PETER DERR PE12
Identified by the contact ids of the people who file for the firm and by its email domain (diopsys.com), not by matching names.
Most recent projects
All projects →
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
Q00517357 ↗70-32 84 STREET
QUEENS
AlterationSigned-off11/04/202112/20/2024
Owner COOPER 83RD STREET TERMINALS LLC
Contractor BROOKLYN CONSTRUCTION GR*
Filer POI LENG ONG
INSTALLATION OF MECHANICAL SYSTEM & ROOF TOP UNITS.
B00384505 ↗284 MANHATTAN AVENUE
BROOKLYN
AlterationFiled — no permit on record03/05/2021—
Filer DOMINION EXPEDITING
—
B00386331 ↗284 MANHATTAN AVENUE
BROOKLYN
AlterationFiled — no permit on record02/23/2021—
Filer DONALD RUBIN, ARCHITECT LLC
—
Q00209424 ↗35-11 9 STREET
QUEENS
AlterationSigned-off08/21/201909/20/2019
Owner BRICKMAN REAL ESTATE
Contractor EMPIRE WATER MAIN&SEWER I
Filer K & M DOB CONSULTING CORP.
INSTALLATION OF GAS COOKING EQUIPMENT, PLUMBING FIXTURES AND MODIFICATION OF SPRINKLER HEADS AND PIPING WITH NEW INSTALLATION. NO CHANGE IN …
Counts cover all 4 projects (4 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
PETER DERR1006/10/2021
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
ALL HOUR SEWER SERVICE CO110/29/2019
BROOKLYN CONSTRUCTION GR*111/04/2021
EMPIRE WATER MAIN&SEWER I110/29/2019
MECHANICAL EAST CO.,INC110/29/2019
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
BRICKMAN REAL ESTATE110/29/2019
COOPER 83RD STREET TERMINALS LLC111/04/2021
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
DONALD RUBIN, ARCHITECT LLC106/10/2021
POI LENG ONG111/04/2021
4 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 4Signed off 2Filed only 2
4 projects
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
Q00517357 ↗70-32 84 STREET
QUEENS
AlterationSigned-off11/04/202112/20/2024
Owner COOPER 83RD STREET TERMINALS LLC
Contractor BROOKLYN CONSTRUCTION GR*
Filer POI LENG ONG
INSTALLATION OF MECHANICAL SYSTEM & ROOF TOP UNITS.
B00384505 ↗284 MANHATTAN AVENUE
BROOKLYN
AlterationFiled — no permit on record03/05/2021—
Filer DOMINION EXPEDITING
—
B00386331 ↗284 MANHATTAN AVENUE
BROOKLYN
AlterationFiled — no permit on record02/23/2021—
Filer DONALD RUBIN, ARCHITECT LLC
—
Q00209424 ↗35-11 9 STREET
QUEENS
AlterationSigned-off08/21/201909/20/2019
Owner BRICKMAN REAL ESTATE
Contractor EMPIRE WATER MAIN&SEWER I
Filer K & M DOB CONSULTING CORP.
INSTALLATION OF GAS COOKING EQUIPMENT, PLUMBING FIXTURES AND MODIFICATION OF SPRINKLER HEADS AND PIPING WITH NEW INSTALLATION. NO CHANGE IN …
Scope of Work
HVAC — 1 project · most recent 11/04/2021
Associated Ducts and Piping Others Ventilation Systems
Sprinkler / Standpipe — 1 project · most recent 06/10/2021
No specific sub-scope on file — project count only.
Plumbing — 1 project · most recent 06/10/2021
Gas Water/Sanitary
Click a row for this entity's own projects, plans and documents at that building.
BuildingFilingsMost Recent
284 MANHATTAN AVENUE ↗606/10/2021
70-32 84 STREET ↗105/06/2021
35-11 9 STREET ↗510/29/2019
▾Documents — 48 on file (BIS + DOB NOW)
▸Plans & Drawings14
▸DOB NOWPlans/Sketch - Sprinkler6
09/01/2026B00386331-I1 · 284 MANHATTAN AVENUERequest digital key ↗
08/28/2026Q00209424-I1 · 35-11 9 STREETRequest digital key ↗
08/15/2026Q00209424-P1 · 35-11 9 STREETRequest digital key ↗
Showing 3 of 6 on file for this type
▸DOB NOWPlans/Sketch - Plumbing6
09/01/2026B00384505-I1 · 284 MANHATTAN AVENUERequest digital key ↗
08/28/2026Q00209424-I1 · 35-11 9 STREETRequest digital key ↗
08/15/2026Q00209424-P2 · 35-11 9 STREETRequest digital key ↗
Showing 3 of 6 on file for this type
▸DOB NOWPlans/Sketch - Mechanical Systems1
08/28/2026Q00209424-S1 · 35-11 9 STREETRequest digital key ↗
▸DOB NOWPlans/Sketch1
08/27/2026Q00517357-I1 · 70-32 84 STREETRequest digital key ↗
▸Seals & Professional Certifications23
▸DOB NOWDPL-1: Design Professional Seal & Signature10
09/01/2026B00386331-P1 · 284 MANHATTAN AVENUEOpen ↗
09/01/2026B00386331-I1 · 284 MANHATTAN AVENUEOpen ↗
08/28/2026Q00209424-I1 · 35-11 9 STREETOpen ↗
Showing 3 of 10 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature9
09/23/2026Q00209424-I1 · 35-11 9 STREETOpen ↗
08/26/2026Q00517357-I1 · 70-32 84 STREETOpen ↗
08/26/2026Q00517357-I1 · 70-32 84 STREETOpen ↗
Showing 3 of 9 on file for this type
▸DOB NOWProgress Inspector Seal & Signature4
08/26/2026Q00517357-I1 · 70-32 84 STREETOpen ↗
08/26/2026Q00517357-I1 · 70-32 84 STREETOpen ↗
08/26/2026Q00517357-I1 · 70-32 84 STREETOpen ↗
Showing 3 of 4 on file for this type
▸Environmental & Asbestos10
▸DOB NOWDEP ACP-5: Asbestos Assessment Report10
09/01/2026B00386331-I1 · 284 MANHATTAN AVENUEOpen ↗
09/01/2026B00386331-P1 · 284 MANHATTAN AVENUEOpen ↗
08/28/2026Q00209424-I1 · 35-11 9 STREETOpen ↗
Showing 3 of 10 on file for this type
▸Energy Compliance1
▸DOB NOWEN2: As Built Energy Analysis.1
08/13/2026Q00517357-I1 · 70-32 84 STREETOpen ↗