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Filing Representative Firm
CNC-DESIGN SPACE
Expediter
7 projects with open permitsMANHATTAN · 6QUEENS · 3BROOKLYN · 2
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12 buildings
30
Total Filings
12
Projects on File
12
Buildings Worked
7
Projects w/ Open Permits
Expediter
Role
Activity
Projects by first filing month12 projects all-time
0134Mar '25 · 1Aug '25 · 1Sep '25 · 1Oct '25 · 1Nov '25 · 3Dec '25 · 1Feb '26 · 1Mar '26 · 1May '26 · 1Jun '26 · 1Mar '25May '25Jul '25Sep '25Nov '25Jan '26Mar '26May '26Jun '26
bars = month · line = 3-mo average
Portfolio status
Browse projects →
Open permit758%
Signed off542%
By project type
Alteration12
Most active buildings
All buildings →
11 EAST 30 STREETMANHATTAN · 1 open · latest 11/19/2025
1 projects
140 EAST 28 STREETMANHATTAN · 1 open · latest 01/27/2026
1 projects
334 LEXINGTON AVENUEMANHATTAN · 1 open · latest 10/16/2025
1 projects
826 9 AVENUEMANHATTAN · 1 open · latest 05/21/2025
1 projects
402 EAST 74 STREETMANHATTAN · 1 open · latest 07/20/2026
1 projects
2119 1 AVENUEMANHATTAN · latest 08/28/2025
1 projects
Key relationships
Everyone →
Design firms
12 projects
People
All people →
CHANGYOUNG CHOIlatest 07/16/2026
30 filings
Filed under
CNC-DESIGN SPACE30
Identified by the contact ids of the people who file for the firm and by its email domain (cnc-designspace.com), not by matching names.
Most recent projects
All projects →
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
M01412975 ↗402 EAST 74 STREET
MANHATTAN
AlterationPermit Issued06/19/202607/20/2026
Design CHONG ENGINEERING, P.C.
Owner PRIDE PROPERTY MANAGEMENT
Contractor AURA PLUMBING INC
SUBSEQUENT PLUMBING FILING. NO CHANGE IN USE, EGRESS AND OCCUPANCY.
B01401822 ↗192 KENT STREET
BROOKLYN
AlterationSigned-off05/28/202606/23/2026
Design CHONG ENGINEERING, P.C.
Owner ROCK BLVD LLC.
Contractor DOUG'S PLBG & HTG SERV CO
HEREWITH FILE PLANS FOR INSTALLATION (1) NEW GAS METER AND PIPING FOR NEW BOILERS IN THE CELLAR OF EXISTING RESIDENTIAL BUILDING. NEW BOILER…
Q01369139 ↗34-21 STEINWAY STREET
QUEENS
AlterationPermit Issued03/12/202603/30/2026
Design CHONG ENGINEERING, P.C.
Owner Schuman GP LLC
Contractor ZATOS PLBG AND HTG INC
HEREWITH FILE SUBSEQUENT PLUMBING WORKS. NO CHANGE IN USE, EGRESS AND OCCUPANCY.
B01354977 ↗197 ST JAMES PLACE
BROOKLYN
AlterationPermit Issued02/04/202602/11/2026
Design CHONG ENGINEERING, P.C.
Owner 388 AMZI HILL LLC
Contractor TRIWORKS INC
HEREWITH FILE PLANS FOR MECHANICAL SYSTEM ON AN EXISTING 1 FAMILY HOUSE. NO CHANGE IN USE, EGRESS AND OCCUPANCY.
Q01312235 ↗156-10 NORTHERN BOULEVARD
QUEENS
AlterationSigned-off11/10/202502/09/2026
Design CHONG ENGINEERING, P.C.
Owner KINGSLAND ASSOCIATES, LLC.
Contractor CK PLUMBING & MECH INC
HEREWITH FILE PLANS FOR MINOR PLUMBING FIXTURES REPLACEMENT AND TO RELOCATE AND NEW SPRINKLER HEADS ON AN EXISTING WATER LINE. NO CHANGE IN …
M01332193 ↗140 EAST 28 STREET
MANHATTAN
AlterationPermit Issued12/24/202501/27/2026
Design CHONG ENGINEERING, P.C.
Contractor GREGG NY PLUMBING, INC
SUBSEQUENT FILING FOR REPLACEMENT/NEW PLUMBING FIXTURES FOR AN EXISTING DWELLING UNIT 7G. NO CHANGE IN USE, EGRESS AND OCCUPANCY.
Counts cover all 12 projects (12 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
CHANGYOUNG CHOI3007/16/2026
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
CHONG ENGINEERING, P.C.1207/20/2026
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
SEOUL INTERIOR & BUILD IN307/20/2026
ALMA PLBG SPRINKLER INC107/20/2026
AURA PLUMBING INC106/19/2026
AVON PLBG & HTG INC110/16/2025
CENTURIAN CONSTRUCTION106/19/2026
CK PLUMBING & MECH INC105/12/2026
DC BUILDING SERVICES INC105/12/2026
DOUG'S PLBG & HTG SERV CO105/28/2026
FIRST LOTTE CONSTRUCTION111/10/2025
FLUSHING PLUMBING CORP106/23/2025
GREGG NY PLUMBING, INC106/02/2026
PINNACLE PLBG & HTG CORP106/23/2025
POWER PLUMBING & HEATING111/04/2025
PRISTINE AIR CONDITIONING105/12/2026
RISE CONSTRUCTION SOLUTIO106/02/2026
TRIWORKS INC102/04/2026
WORLD DESIGN NY INC106/23/2025
ZATOS PLBG AND HTG INC107/20/2026
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
350 LINCON PLACE LLC111/10/2025
388 AMZI HILL LLC102/04/2026
BROWN HARVARD ESTATE LLC110/16/2025
KINGSLAND ASSOCIATES, LLC.105/12/2026
PRIDE PROPERTY MANAGEMENT CORP.106/19/2026
ROCK BLVD LLC.105/28/2026
Schuman GP LLC107/20/2026
TRISTAR MANAGEMENT ASSOCIATES LLC106/23/2025
12 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 12Open permit 7Signed off 5
12 projects
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
M01412975 ↗402 EAST 74 STREET
MANHATTAN
AlterationPermit Issued06/19/202607/20/2026
Design CHONG ENGINEERING, P.C.
Owner PRIDE PROPERTY MANAGEMENT
Contractor AURA PLUMBING INC
SUBSEQUENT PLUMBING FILING. NO CHANGE IN USE, EGRESS AND OCCUPANCY.
B01401822 ↗192 KENT STREET
BROOKLYN
AlterationSigned-off05/28/202606/23/2026
Design CHONG ENGINEERING, P.C.
Owner ROCK BLVD LLC.
Contractor DOUG'S PLBG & HTG SERV CO
HEREWITH FILE PLANS FOR INSTALLATION (1) NEW GAS METER AND PIPING FOR NEW BOILERS IN THE CELLAR OF EXISTING RESIDENTIAL BUILDING. NEW BOILER…
Q01369139 ↗34-21 STEINWAY STREET
QUEENS
AlterationPermit Issued03/12/202603/30/2026
Design CHONG ENGINEERING, P.C.
Owner Schuman GP LLC
Contractor ZATOS PLBG AND HTG INC
HEREWITH FILE SUBSEQUENT PLUMBING WORKS. NO CHANGE IN USE, EGRESS AND OCCUPANCY.
B01354977 ↗197 ST JAMES PLACE
BROOKLYN
AlterationPermit Issued02/04/202602/11/2026
Design CHONG ENGINEERING, P.C.
Owner 388 AMZI HILL LLC
Contractor TRIWORKS INC
HEREWITH FILE PLANS FOR MECHANICAL SYSTEM ON AN EXISTING 1 FAMILY HOUSE. NO CHANGE IN USE, EGRESS AND OCCUPANCY.
Q01312235 ↗156-10 NORTHERN BOULEVARD
QUEENS
AlterationSigned-off11/10/202502/09/2026
Design CHONG ENGINEERING, P.C.
Owner KINGSLAND ASSOCIATES, LLC.
Contractor CK PLUMBING & MECH INC
HEREWITH FILE PLANS FOR MINOR PLUMBING FIXTURES REPLACEMENT AND TO RELOCATE AND NEW SPRINKLER HEADS ON AN EXISTING WATER LINE. NO CHANGE IN …
M01332193 ↗140 EAST 28 STREET
MANHATTAN
AlterationPermit Issued12/24/202501/27/2026
Design CHONG ENGINEERING, P.C.
Contractor GREGG NY PLUMBING, INC
SUBSEQUENT FILING FOR REPLACEMENT/NEW PLUMBING FIXTURES FOR AN EXISTING DWELLING UNIT 7G. NO CHANGE IN USE, EGRESS AND OCCUPANCY.
M01314118 ↗11 EAST 30 STREET
MANHATTAN
AlterationPermit Issued11/07/202511/19/2025
Design CHONG ENGINEERING, P.C.
Contractor SMART PLUMBING & HTG CORP
HEREWITH FILE PLANS FOR INSTALLING NEW GAS LINE FOR BOILERS. NO CHANGE IN USE, EGRESS AND OCCUPANCY.
X01313734 ↗4000 BOSTON ROAD
BRONX
AlterationSigned-off11/10/202511/12/2025
Design CHONG ENGINEERING, P.C.
Owner 350 LINCON PLACE LLC
Contractor FIRST LOTTE CONSTRUCTION
HEREWITH FILE PLANS FOR REPLACEMENT OF HVACT UNIT LOCATED ON ROOF. EXISTING STEEL DUNNAGE BEAMS FOR SUPPORT. NO CHANGE IN USE, EGRESS AND OC…
Q01301450 ↗158-17 NORTHERN BOULEVARD
QUEENS
AlterationSigned-off10/16/202510/22/2025
Design CHONG ENGINEERING, P.C.
Owner BROWN HARVARD ESTATE LLC
Contractor AVON PLBG & HTG INC
HEREWITH FILE PLANS FOR MINOR PLUMBING WORK FOR EXISTING COMMERCIAL SPACE. NO CHANGE IN USE, EGRESS AND OCCUPANCY.
M01278945 ↗334 LEXINGTON AVENUE
MANHATTAN
AlterationPermit Issued09/03/202510/16/2025
Design CHONG ENGINEERING, P.C.
Contractor POWER PLUMBING & HEATING
HEREWITH FILE PLUMBING SUBSEQUENT APPLICATION FOR NEW/REPLACEMENT OF PLUMBING FIXTURES FOR BASEMENT AND FIRST FLOOR COMMERCIAL SPACE. NO CHA…
M01215514 ↗2119 1 AVENUE
MANHATTAN
AlterationSigned-off08/14/202508/28/2025
Design CHONG ENGINEERING, P.C.
Contractor SEOUL INTERIOR & BUILD IN
HEREWITH FILE PLANS FOR NEW STORE FRONT AND TO INSTALL ADA HANDICAP RAMP. NO CHANGE IN USE, EGRESS AND OCCUPANCY.
M01191942 ↗826 9 AVENUE
MANHATTAN
AlterationPermit Issued03/18/202505/21/2025
Design CHONG ENGINEERING, P.C.
Owner TRISTAR MANAGEMENT ASSOCIATES LLC
Contractor FLUSHING PLUMBING CORP
HEREWITH FILE SUBSEQUENT FILING FOR RENOVATION OF EXISTING COMMERCIAL KITCHEN SPACE. REPLACING/NEW KITCHEN FIXTURES. NO CHANGE IN USE, EGRES…
Click a row for this entity's own projects, plans and documents at that building.
BuildingFilingsMost Recent
11 EAST 30 STREET ↗707/16/2026
34-21 STEINWAY STREET ↗607/16/2026
402 EAST 74 STREET ↗206/05/2026
140 EAST 28 STREET ↗206/01/2026
192 KENT STREET ↗105/13/2026
197 ST JAMES PLACE ↗102/03/2026
4000 BOSTON ROAD ↗111/04/2025
156-10 NORTHERN BOULEVARD ↗210/31/2025
334 LEXINGTON AVENUE ↗210/30/2025
158-17 NORTHERN BOULEVARD ↗110/10/2025
826 9 AVENUE ↗406/23/2025
2119 1 AVENUE ↗104/24/2025
▾Documents — 171 on file (BIS + DOB NOW)
▸Plans & Drawings35
▸DOB NOWPlans/Sketch35
08/23/2026M01191942-P2 · 826 9 AVENUERequest digital key ↗
08/23/2026M01191942-I1 · 826 9 AVENUERequest digital key ↗
08/23/2026M01191942-P1 · 826 9 AVENUERequest digital key ↗
Showing 3 of 35 on file for this type
▸Applications & Permits1
▸DOB NOWLPC Approval/Permit1
08/13/2026B01354977-I1 · 197 ST JAMES PLACEOpen ↗
▸Seals & Professional Certifications104
▸DOB NOWProgress Inspector Seal & Signature44
09/23/2026M01278945-I1 · 334 LEXINGTON AVENUEOpen ↗
09/23/2026M01278945-I1 · 334 LEXINGTON AVENUEOpen ↗
09/23/2026B01401822-I1 · 192 KENT STREETOpen ↗
Showing 3 of 44 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature34
08/23/2026M01191942-P2 · 826 9 AVENUEOpen ↗
08/23/2026M01191942-P1 · 826 9 AVENUEOpen ↗
08/21/2026M01314118-P1 · 11 EAST 30 STREETOpen ↗
Showing 3 of 34 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature26
09/23/2026M01278945-I1 · 334 LEXINGTON AVENUEOpen ↗
09/23/2026Q01312235-I1 · 156-10 NORTHERN BOULEVARDOpen ↗
09/23/2026B01401822-I1 · 192 KENT STREETOpen ↗
Showing 3 of 26 on file for this type
▸Safety & Tenant Protection4
▸DOB NOWHPD-2: Clinton Special District Anti-Harassment Checklist4
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 4 on file for this type
▸Environmental & Asbestos26
▸DOB NOWDEP ACP-5: Asbestos Assessment Report26
08/23/2026M01191942-S1 · 826 9 AVENUEOpen ↗
08/23/2026M01191942-P1 · 826 9 AVENUEOpen ↗
08/23/2026M01191942-P2 · 826 9 AVENUEOpen ↗
Showing 3 of 26 on file for this type
▸Other Documents1
▸DOB NOWProof of Historic Building1
08/13/2026B01354977-I1 · 197 ST JAMES PLACEOpen ↗