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Design Firm
JDJ ENGINEERING, DPC
Design
7 projects with open permitsMANHATTAN · 13BROOKLYN · 12BRONX · 6
28 buildings
68
Total Filings
36
Projects on File
28
Buildings Worked
7
Projects w/ Open Permits
Design
Role
Activity
Projects by first filing month36 projects all-time
0257Aug '19 · 1Nov '19 · 1Apr '20 · 1Jul '20 · 1Nov '20 · 5Feb '21 · 2Aug '21 · 2Nov '21 · 1Jan '22 · 6Mar '22 · 4Apr '22 · 1Jun '22 · 4Sep '22 · 3Oct '22 · 1Feb '23 · 1Mar '23 · 1Jun '23 · 12020202120222023
bars = month · line = 3-mo average
Portfolio status
Browse projects →
Open permit719%
Signed off2569%
Filed only411%
By project type
Alteration36
Most active buildings
All buildings →
47-01 QUEENS BOULEVARDQUEENS · latest 03/04/2023
3 projects
160 EAST 56 STREETMANHATTAN · latest 07/24/2023
2 projects
535 WEST 148 STREETMANHATTAN · 1 open · latest 06/14/2023
2 projects
533 WEST 148 STREETMANHATTAN · 1 open · latest 12/15/2023
2 projects
654 MANIDA STREETBRONX · 1 open · latest 12/03/2022
2 projects
11 BERKELEY PLACEBROOKLYN · 1 open · latest 09/26/2023
2 projects
Key relationships
Everyone →
Filing representatives
Owners
Jonathan Johrdenlatest 10/18/2023
47 filings
Filed under
JDJ ENGINEERING, DPC68
Identified by the contact ids of the people who file for the firm and by its email domain (jdj-eng.com), not by matching names.
Most recent projects
All projects →
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
M00763324 ↗533 WEST 148 STREET
MANHATTAN
AlterationPermit Issued06/24/202212/15/2023FURNISH & INSTALL TWO (2) SPLIT HOT WATER HEAT PUMP SYSTEMS CONNECTED TO TWO (2) 119-GALLON INSULATED STORAGE TANKS REPLACING THE BASE BUILD…
M08018557 ↗313 WEST 78 STREET
MANHATTAN
AlterationSigned-off10/13/202211/03/2023Propose installation of split systems in cellar, 001, 002, 003, 004, 005 and roof all as per plans filed herewith. No change in use occupanc…
M00713337 ↗42 WEST 15 STREET
MANHATTAN
AlterationPermit Issued09/23/202210/06/2023FURNISH ONE (1) 2.5-TON, ONE (1) 3-TON DUCTED HEATING & COOLING INVERTER-BASED HEAT PUMP SYSTEMS W/TWO (2) INDOOR DUCTED AHUS & ASSOCIATED T…
B00643625 ↗11 BERKELEY PLACE
BROOKLYN
AlterationSigned-off01/20/202209/26/2023FURNISH & INSTALL TWO (2) SPLIT HOT WATER HEAT PUMP SYSTEM CONNECTED TO ONE (1) 119 GALLON INSULATED STORAGE TANKS REPLACING THE BASE BUILDI…
M00875479 ↗160 EAST 56 STREET
MANHATTAN
AlterationSigned-off06/08/202307/24/2023TO FURNISH & INSTALL ONE (1) 3-TON HVAC HEAT PUMP REPLACEMENT MULTI-SPLIT INVERTER UNIT ON THE 2ND FL REAR ROOF EXISTING STEEL DUNNAGE FOR E…
M00763524 ↗535 WEST 148 STREET
MANHATTAN
AlterationPermit Issued06/24/202206/14/2023
Owner BLOCPOWER
FURNISH & INSTALL TWO (2) SPLIT HOT WATER HEAT PUMP SYSTEMS CONNECTED TO TWO (2) 119-GALLON INSULATED STORAGE TANKS REPLACING THE BASE BUILD…
Counts cover all 36 projects (36 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
Jonathan Johrden4710/18/2023
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
SUPER COOL HVAC, LLC1010/08/2023
A & R ULTIMATE MAGMT LLC505/15/2025
ROYALTY HEATING AND AC508/03/2023
AMC PLBG, HTG & CLNG, INC410/16/2023
FIRST CHOICE MECHANICAL303/13/2023
ATELIER TROADEC, LLC108/25/2022
FRESH AIRE MECHANICAL INC103/07/2022
K & Y PLBG AND HTG INC111/26/2019
NACCARATO CONTRACTING INC111/29/2021
STONE REMODELING, INC107/19/2023
TAVELLA PLG HTG CORP103/07/2022
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
BLOCPOWER1010/16/2023
A&R PROPERTIES GROUP505/15/2025
BEER OBSESSED LLC111/26/2019
CBB Venture, LLC107/07/2020
INTEGER INV US LLC108/26/2022
KHALEESI43 LLC107/19/2023
MERCY DRIVE INC103/13/2023
PARK AVENUE MEDICAL PROFESSIONALS P102/16/2021
SCHOOL OF ROCK WILLIAMSBURG111/29/2021
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
BLOCPOWER208/11/2022
KSTM EXPEDIRING SERVICES107/19/2023
36 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 36Open permit 7Signed off 25Filed only 4
36 projects
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
M00763324 ↗533 WEST 148 STREET
MANHATTAN
AlterationPermit Issued06/24/202212/15/2023FURNISH & INSTALL TWO (2) SPLIT HOT WATER HEAT PUMP SYSTEMS CONNECTED TO TWO (2) 119-GALLON INSULATED STORAGE TANKS REPLACING THE BASE BUILD…
M08018557 ↗313 WEST 78 STREET
MANHATTAN
AlterationSigned-off10/13/202211/03/2023Propose installation of split systems in cellar, 001, 002, 003, 004, 005 and roof all as per plans filed herewith. No change in use occupanc…
M00713337 ↗42 WEST 15 STREET
MANHATTAN
AlterationPermit Issued09/23/202210/06/2023FURNISH ONE (1) 2.5-TON, ONE (1) 3-TON DUCTED HEATING & COOLING INVERTER-BASED HEAT PUMP SYSTEMS W/TWO (2) INDOOR DUCTED AHUS & ASSOCIATED T…
B00643625 ↗11 BERKELEY PLACE
BROOKLYN
AlterationSigned-off01/20/202209/26/2023FURNISH & INSTALL TWO (2) SPLIT HOT WATER HEAT PUMP SYSTEM CONNECTED TO ONE (1) 119 GALLON INSULATED STORAGE TANKS REPLACING THE BASE BUILDI…
M00875479 ↗160 EAST 56 STREET
MANHATTAN
AlterationSigned-off06/08/202307/24/2023TO FURNISH & INSTALL ONE (1) 3-TON HVAC HEAT PUMP REPLACEMENT MULTI-SPLIT INVERTER UNIT ON THE 2ND FL REAR ROOF EXISTING STEEL DUNNAGE FOR E…
M00763524 ↗535 WEST 148 STREET
MANHATTAN
AlterationPermit Issued06/24/202206/14/2023
Owner BLOCPOWER
FURNISH & INSTALL TWO (2) SPLIT HOT WATER HEAT PUMP SYSTEMS CONNECTED TO TWO (2) 119-GALLON INSULATED STORAGE TANKS REPLACING THE BASE BUILD…
X08053799 ↗1312 BLONDELL AVENUE
BRONX
AlterationPermit Issued03/13/202303/24/2023TO FURNISH & INSTALL ONE (1) 12.5-TON & ONE (1) 6.5-TON REPLACEMENT RTU PACKAGED HVAC UNIT ON THE MEZZANINE ROOF LEVEL FOR THE EX. MEZZANINE…
M08005585 ↗160 EAST 56 STREET
MANHATTAN
AlterationSigned-off02/17/202303/08/2023TO FURNISH & INSTALL TWO (2) 10-TON HVAC REPLACEMENT HEAT PUMP VRF INVERTER UNITS ON THE MAIN ROOF LVL & 8TH FL OFFSET ROOF FOR EXIST. OFFIC…
Q00704287 ↗47-01 QUEENS BOULEVARD
QUEENS
AlterationSigned-off04/06/202203/04/2023TO FURNISH & INSTALL FOUR (4) 15-TON REPLACEMENT HEAT PUMP RTU PACKAGED HVAC UNITS ON THE MAIN ROOF LEVEL FOR THE FRONT & REAR TENANT OCCUPA…
Q07994517 ↗47-01 QUEENS BOULEVARD
QUEENS
AlterationSigned-off09/18/202203/04/2023TO FURNISH & INSTALL TWO (2) 15-TON REPLACEMENT HEAT PUMP RTU PACKAGED HVAC UNITS ON THE MAIN ROOF LEVEL FOR THE FRONT & REAR TENANT OCCUPAN…
X00657818 ↗654 MANIDA STREET
BRONX
AlterationPermit Issued01/20/202212/03/2022
Owner BLOCPOWER
TO FURNISH & INSTALL PROPOSED AIR SOURCE HOT WATER HEAT PUMP SPLIT SYSTEM, (1) HP CONDENSER & (1) HOT WATER STORAGE TANK FOR EXIST. 2-FAMILY…
B08005596 ↗38 MESEROLE STREET
BROOKLYN
AlterationSigned-off09/22/202210/20/2022
Owner BLOCPOWER
TO FURNISH & INSTALL TWO (2) 5-TON VRF HEAT PUMP INVERTER SYSTEMS W/TWO (2) MULTI-POSITION AHUS TO REPLACE EX. HVAC EQUIPMENT IN APT. 5A & 5…
Q00704285 ↗47-01 QUEENS BOULEVARD
QUEENS
AlterationSigned-off03/29/202210/03/2022FURNISH & INSTALL REPLACEMENT HVAC SYSTEMS W/HEAT PUMPS FOR 1ST FLOOR RETAIL TENANTS A, B, C, & D INTERIOR SPACES AHUS. ALSO, REPLACING ASSO…
B00642270 ↗11 BERKELEY PLACE
BROOKLYN
AlterationPermit Issued01/20/202208/28/2022TO FURNISH & INSTALL MULTIPLE INVERTER MINI-SPLIT HEAT PUMP SYSTEMS PER TENANT TO MEET BLDG. HEATING DEMAND AS NOTED ON SHEET M-001.00 FOR T…
M00763296 ↗533 WEST 148 STREET
MANHATTAN
AlterationFiled — no permit on record06/24/2022———
M00763471 ↗535 WEST 148 STREET
MANHATTAN
AlterationFiled — no permit on record06/24/2022—
Owner BLOCPOWER
—
B00656492 ↗79 DECATUR STREET
BROOKLYN
AlterationSigned-off03/28/202204/28/2022
Owner BLOCPOWER
TO FURNISH & INSTALL MULTIPLE MULTI-SPLIT HEAT PUMP ASHP SYSTEMS W/(28) DUCTLESS AHUS WITHIN EXISTING EIGHT (8) UNIT APT. BLDG TO PROVIDE FU…
M00703317 ↗250 EAST 7 STREET
MANHATTAN
AlterationSigned-off03/25/202204/15/2022
Owner BLOCPOWER
Filer BLOCPOWER
FURNISH & INSTALL ONE (1) 3-TON MULTI-SPLIT INVERTER HEAT PUMP SYSTEM WITH THREE (3) INDOOR DUCTLESS AHUS WITHIN EXIST. APARTMENT #21-22 TO …
X00703314 ↗4293 VIREO AVENUE
BRONX
AlterationFiled — no permit on record03/28/2022—
Owner BLOCPOWER
Filer BLOCPOWER
—
B00657813 ↗1224 PACIFIC STREET
BROOKLYN
AlterationPermit Issued01/20/202203/24/2022
Owner BLOCPOWER
TO FURNISH & INSTALL 45.5-TONS OF MULTI-SPLIT HEAT PUMP SYSTEMS W/(51) DUCTLESS WALL MOUNTED AHUS WITHIN EXISTING. (15) UNIT APT. BLDG. TO P…
X00657816 ↗654 MANIDA STREET
BRONX
AlterationSigned-off01/20/202203/23/2022
Owner BLOCPOWER
TO FURNISH & INSTALL THREE (3) 3-TON MULTI-SPLIT HEAT PUMP ASHP SYSTEMS W/(11) DUCTLESS AHUS WITHIN EXISTING TWO-FAMILY RESIDENTIAL UNITS & …
X00657814 ↗3411 CANNON PLACE
BRONX
AlterationSigned-off01/27/202202/25/2022
Owner BLOCPOWER
TO FURNISH & INSTALL 4-TON & 3-TON MULTI-SPLIT HEAT PUMP SYSTEMS W/(9) DUCTLESS WALL MOUNTED AHUS WITHIN THE EXISTING SINGLE-FAMILY DWELLING…
B00632675 ↗563 PROSPECT AVENUE
BROOKLYN
AlterationSigned-off11/24/202112/09/2021INSTALL (1) 2-TON & (2) 3-TON MULTI-SPLIT HEAT PUMP SYSTEMS W/(11) DUCTLESS WALL MOUNTED AHUS IN BLDG. TO MEET BUILDING HEATING DEMAND & PRO…
M00566740 ↗161 WEST 129 STREET
MANHATTAN
AlterationSigned-off08/05/202108/10/2021FURNISH & INSTALL (3) MULTI-SPLIT HEAT PUMP INVERTER SYSTEMS, 4-TON UNIT IN THE REAR YARD, 2 & 3-TON SYSTEM MOUNTED ON THE ROOF PARAPET. THE…
M00551185 ↗520 WEST 157 STREET
MANHATTAN
AlterationFiled — no permit on record08/05/2021———
M00470582 ↗120 EAST 86 STREET
MANHATTAN
AlterationSigned-off02/16/202107/27/2021TO FURNISH ONE (1) 15-TON SELF-CONTAINED A/C UNIT REPLACING EXIST. HVAC UNIT TO CONNECT TO EXIST. OFFICE SA & OA DUCTWORK TO MEET EXIST. OFF…
B00425911 ↗94 NORTH 3 STREET
BROOKLYN
AlterationSigned-off11/25/202002/25/2021FURNISH & INSTALL (1) TENANT SPRINKLER ISOLATION VALVE & (17) WET HEADS AND ASSOCIATED BRANCH PIPING TO EXISTING LANDLORD SUPPLIED BASE BUIL…
B00447936 ↗165 PUTNAM AVENUE
BROOKLYN
AlterationSigned-off02/05/202102/22/2021FURNISH & INSTALL BUILDING SINGLE FAMILY TWO (2) HEAT PUMP INVERTER HEATING & COOLING UNITS IN REAR YARD WITH EIGHT (8) T-STAT WALL MOUNTED …
M00422060 ↗330 WEST END AVENUE
MANHATTAN
AlterationSigned-off11/23/202002/01/2021FURNISH & INSTALL ONE (1) 3 TON MULTI-SPLIT HEAT PUMP SYSTEMS WITH THREE (3) INDOOR DUCTLESS AHUS WITHIN EXIST. APARTMENT 9A. NO CHANGE IN U…
B00422055 ↗1281 PRESIDENT STREET
BROOKLYN
AlterationSigned-off11/10/202001/07/2021REQUEST TO FILE HERE WITHIN FURNISH & INSTALL BUILDING SINGLE FAMILY SEVEN (7) HEAT PUMP INVERTER HEATING & COOLING UNITS IN REAR YARD WITH …
B00422061 ↗94 NORTH 3 STREET
BROOKLYN
AlterationSigned-off11/25/202012/02/2020FURNISH & INSTALL NEW MAIN TRUNK AND BRANCH SUPPLY DUCTWORK TO EXISTING LANDLORD SUPPLIED AHU & TOILET EXHAUST DUCTWORK MODIFICATION INSTALL…
X00422057 ↗2940 LURTING AVENUE
BRONX
AlterationSigned-off11/03/202011/30/2020FURNISH & INSTALL TWO (2) 3.75 TON MULTI-SPLIT HEAT PUMP SYSTEMS WITH NINE (9) DUCTLESS AHUS WITHIN EXIST. SEMI-ATTACHED HOME TO PROVIDE FUL…
Q00366740 ↗206 BEACH 116 STREET
QUEENS
AlterationSigned-off07/09/202007/10/2020TO FURNISH AND INSTALL NEW HVAC VRF EQUIPMENT. (2)-4 TON HEAT PUMP UNITS. (1)-2 TON HEAT PUMP UNITS AND (9)-CEILING HUNG CASSETTES AHUS AS P…
B00343135 ↗1608 SHORE PARKWAY
BROOKLYN
AlterationSigned-off04/22/202005/12/2020REMOVE EX. 8-TON ROOF CONDENSER, THE EX. AIR HANDLER IS IN THE 1ST FL CEILING & SHALL REMAIN IN PLACE. FURNISH & INSTALL TWO (2) 4-TON CONDE…
Q00262233 ↗110-31 73 ROAD
QUEENS
AlterationSigned-off11/26/201912/16/2019ASSOCIATED PLUMBING EQUIPMENT FOR EATING AND DRINKING ESTABLISHMENT. NO CHANGE OF USE, EGRESS OR OCCUPANCY.
B00204737 ↗294 GRAHAM AVENUE
BROOKLYN
AlterationSigned-off08/06/201911/22/2019INSTALLATION OF (2) HEAT PUMPS FOR MULTI SPLIT SYSTEMS FOR HEATING/COOLING PURPOSES. ON 1ST FL EXISTING RETAIL COMM'L SPACE AS PER PLANS INC…
Scope of Work
HVAC — 5 projects · most recent 03/13/2023
Heating and Air Conditioning Systems Air Conditioning Systems Heating Systems
Plumbing — 3 projects · most recent 10/16/2023
Water/Sanitary
▾Documents — 508 on file (BIS + DOB NOW)
▸Plans & Drawings60
▸DOB NOWPlans/Sketch40
Showing 3 of 40 on file for this type
▸DOB NOWPlans/Sketch - Mechanical Systems17
Showing 3 of 17 on file for this type
▸DOB NOWPlans/Sketch - Sprinkler2
▸DOB NOWPlans/Sketch - Plumbing1
08/28/2026Q00262233-I1 · 110-31 73 ROADRequest digital key ↗
▸Applications & Permits5
▸DOB NOWLPC Approval/Permit5
08/13/2026M00422060-I1 · 330 WEST END AVENUEOpen ↗
08/13/2026M08018557-I1 · 313 WEST 78 STREETOpen ↗
08/13/2026M08018557-P1 · 313 WEST 78 STREETOpen ↗
Showing 3 of 5 on file for this type
▸Seals & Professional Certifications353
▸DOB NOWProgress Inspector Seal & Signature203
09/23/2026Q00366740-I1 · 206 BEACH 116 STREETOpen ↗
09/02/2026B00657813-I1 · 1224 PACIFIC STREETOpen ↗
09/02/2026B00657813-I1 · 1224 PACIFIC STREETOpen ↗
Showing 3 of 203 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature91
09/23/2026Q00366740-I1 · 206 BEACH 116 STREETOpen ↗
09/23/2026Q00366740-I1 · 206 BEACH 116 STREETOpen ↗
09/02/2026B00657813-I1 · 1224 PACIFIC STREETOpen ↗
Showing 3 of 91 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature59
09/03/2026M00566740-P1 · 161 WEST 129 STREETOpen ↗
09/03/2026M00566740-I1 · 161 WEST 129 STREETOpen ↗
09/02/2026M00763296-I1 · 533 WEST 148 STREETOpen ↗
Showing 3 of 59 on file for this type
▸Safety & Tenant Protection16
▸DOB NOWTenant Protection Plan12
09/02/2026B00422055-P1 · 1281 PRESIDENT STREETOpen ↗
09/02/2026B00422055-I1 · 1281 PRESIDENT STREETOpen ↗
09/02/2026B00422061-I1 · 94 NORTH 3 STREETOpen ↗
Showing 3 of 12 on file for this type
▸DOB NOWHPD-3: Single Room Occupancy Multiple Dwelling (SRO MD) Anti-Harassment Checklist4
09/02/2026M00763296-I1 · 533 WEST 148 STREETOpen ↗
08/13/2026M00763324-I1 · 533 WEST 148 STREETOpen ↗
08/13/2026M00763524-I1 · 535 WEST 148 STREETOpen ↗
Showing 3 of 4 on file for this type
▸Environmental & Asbestos56
▸DOB NOWDEP ACP-5: Asbestos Assessment Report55
09/03/2026M00566740-P1 · 161 WEST 129 STREETOpen ↗
09/03/2026M00566740-I1 · 161 WEST 129 STREETOpen ↗
09/02/2026M00763296-I1 · 533 WEST 148 STREETOpen ↗
Showing 3 of 55 on file for this type
▸DOB NOWOER: Notice to Proceed1
08/13/2026X08053799-I1 · 1312 BLONDELL AVENUEOpen ↗
▸Energy Compliance13
▸DOB NOWEN2: As Built Energy Analysis11
08/13/2026X00657816-I1 · 654 MANIDA STREETOpen ↗
08/13/2026B00632675-I1 · 563 PROSPECT AVENUEOpen ↗
08/13/2026M00470582-I1 · 120 EAST 86 STREETOpen ↗
Showing 3 of 11 on file for this type
▸DOB NOWPreliminary Commissioning Report Certification2
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-offs2
▸DOB NOWFee Exempt Supporting Document - DOF ACRIS report or BIB letter2
09/02/2026B00422055-P1 · 1281 PRESIDENT STREETOpen ↗
09/02/2026B00422055-I1 · 1281 PRESIDENT STREETOpen ↗
▸Other Documents3
▸DOB NOWDHCR Document3
08/13/2026Q00262233-I1 · 110-31 73 ROADOpen ↗
Showing 1 of 3 on file for this type