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Design Firm
RANSD ARCHITECTURE PC
Design
4 projects with open permitsMANHATTAN · 15BROOKLYN · 3
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9 buildings
39
Total Filings
18
Projects on File
9
Buildings Worked
4
Projects w/ Open Permits
Design
Role
Activity
Projects by first filing month18 projects all-time
0134Mar '20 · 1Apr '20 · 1Mar '21 · 3Apr '21 · 2May '21 · 1Sep '21 · 1Dec '21 · 3Mar '22 · 1May '22 · 2Dec '22 · 1Sep '24 · 22021202220232024
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Open permit422%
Signed off1478%
By project type
Alteration18
Most active buildings
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793 AVENUE OF THE AMERMANHATTAN · latest 04/05/2021
3 projects
350 3 AVENUEMANHATTAN · 1 open · latest 08/02/2021
3 projects
345 SOUTH END AVENUEMANHATTAN · latest 01/26/2022
3 projects
618 AMSTERDAM AVENUEMANHATTAN · 2 open · latest 10/16/2020
2 projects
70 BATTERY PLACEMANHATTAN · 1 open · latest 09/27/2024
2 projects
158 7 AVENUEBROOKLYN · latest 08/18/2022
2 projects
Key relationships
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1 projects
Filing representatives
13 projects
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Contractors
11 projects
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CHANGSOO SOHNlatest 08/27/2024
33 filings
Most recent projects
All projects →
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
M01102918 ↗70 BATTERY PLACE
MANHATTAN
AlterationSigned-off09/03/202409/27/2024
Contractor CK PLUMBING & MECH INC
Filer K & M DOB CONSULTING CORP.
RENOVATION OF EXISTING APT #16F INCLUDING INSTALLATION OF REPLACEMENT OF PLUMBING FIXTURES. NO CHANGE IN USE, EGRESS, OR OCCUPANCY.
M01102896 ↗70 BATTERY PLACE
MANHATTAN
AlterationPermit Issued09/03/202409/12/2024
Contractor RANSD DESIGN INC
Filer K & M DOB CONSULTING CORP.
INTERIOR RENOVATION OF EXISTING APT #16F INCLUDING MINOR DEMOLITION OF NONE STRUCTURES PARTITION WALL AND BUILT-IN FURNITURE, REFINISH WALL,…
M08019289 ↗445 AVENUE OF THE AMER
MANHATTAN
AlterationSigned-off12/06/202204/01/2024
Owner R. A. COHEN
Contractor HANKOOK HIC INC
Filer DESIGN GROUP IN H&K LLC
INTERIOR RENOVATION OF STORE (NAIL SHOP) INCLUDING REMOVAL AND INSTALLATION OF PARTITIONS, AND REPLACEMENT OF GYP. BD CEILING. AND MECHANIC…
B00739922 ↗158 7 AVENUE
BROOKLYN
AlterationSigned-off05/18/202208/18/2022
Contractor MDR CONTRACTING CORP
Filer UNFOLD ARCHITECT PC
Structural Alteration pertaining to proposed interior renovation of the initial filing.
B00739943 ↗158 7 AVENUE
BROOKLYN
AlterationSigned-off05/18/202206/07/2022
Contractor P.S.I. MECHANICAL
Filer UNFOLD ARCHITECT PC
FILE ALTERATION TYPE 2FOR MINOR INTERERIOR RENOVATION TO COMBINE APT 2L AND 2R, NO CHANGE OF USE, EGRESS, OROCCUPANCY
B00706982 ↗303 BEDFORD AVENUE
BROOKLYN
AlterationSigned-off03/27/202203/31/2022
Contractor HONEST QUALITY
Filer UNFOLD ARCHITECT PC
File alteration type 2 for minor interior renovation at apr #2 and #3, no change of use, egress, or occupancy
Counts cover all 18 projects (18 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
CHANGSOO SOHN3308/27/2024
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
DESIGN GROUP IN H&K LLC109/04/2024
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
RANSD DESIGN INC1109/04/2024
AVON PLBG & HTG INC309/09/2022
CK PLUMBING & MECH INC109/03/2024
HANKOOK HIC INC109/04/2024
HONEST & QUALITY CORP103/27/2022
I DO PLUMBING & HTG INC109/15/2021
MDR CONTRACTING CORP108/11/2022
P.S.I. MECHANICAL105/18/2022
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
Icon Realty Management, LLC305/03/2021
LEFRAK PROPERTY MANAGEMENT309/09/2022
LEFRAK ORGANIZATION209/09/2022
R. A. COHEN109/04/2024
RCR MANAGEMENT GROUP LLC103/31/2021
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
K & M DOB CONSULTING CORP.1309/04/2024
UNFOLD ARCHITECT PC308/11/2022
DESIGN GROUP IN H&K LLC109/04/2024
18 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 18Open permit 4Signed off 14
18 projects
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
M01102918 ↗70 BATTERY PLACE
MANHATTAN
AlterationSigned-off09/03/202409/27/2024
Contractor CK PLUMBING & MECH INC
Filer K & M DOB CONSULTING CORP.
RENOVATION OF EXISTING APT #16F INCLUDING INSTALLATION OF REPLACEMENT OF PLUMBING FIXTURES. NO CHANGE IN USE, EGRESS, OR OCCUPANCY.
M01102896 ↗70 BATTERY PLACE
MANHATTAN
AlterationPermit Issued09/03/202409/12/2024
Contractor RANSD DESIGN INC
Filer K & M DOB CONSULTING CORP.
INTERIOR RENOVATION OF EXISTING APT #16F INCLUDING MINOR DEMOLITION OF NONE STRUCTURES PARTITION WALL AND BUILT-IN FURNITURE, REFINISH WALL,…
M08019289 ↗445 AVENUE OF THE AMER
MANHATTAN
AlterationSigned-off12/06/202204/01/2024
Owner R. A. COHEN
Contractor HANKOOK HIC INC
Filer DESIGN GROUP IN H&K LLC
INTERIOR RENOVATION OF STORE (NAIL SHOP) INCLUDING REMOVAL AND INSTALLATION OF PARTITIONS, AND REPLACEMENT OF GYP. BD CEILING. AND MECHANIC…
B00739922 ↗158 7 AVENUE
BROOKLYN
AlterationSigned-off05/18/202208/18/2022
Contractor MDR CONTRACTING CORP
Filer UNFOLD ARCHITECT PC
Structural Alteration pertaining to proposed interior renovation of the initial filing.
B00739943 ↗158 7 AVENUE
BROOKLYN
AlterationSigned-off05/18/202206/07/2022
Contractor P.S.I. MECHANICAL
Filer UNFOLD ARCHITECT PC
FILE ALTERATION TYPE 2FOR MINOR INTERERIOR RENOVATION TO COMBINE APT 2L AND 2R, NO CHANGE OF USE, EGRESS, OROCCUPANCY
B00706982 ↗303 BEDFORD AVENUE
BROOKLYN
AlterationSigned-off03/27/202203/31/2022
Contractor HONEST QUALITY
Filer UNFOLD ARCHITECT PC
File alteration type 2 for minor interior renovation at apr #2 and #3, no change of use, egress, or occupancy
M00650307 ↗345 SOUTH END AVENUE
MANHATTAN
AlterationSigned-off12/21/202101/26/2022
Owner LEFRAK ORGANIZATION
Contractor AVON PLBG & HTG INC
Filer K & M DOB CONSULTING CORP.
INSTALLATION OF PLUMBING FIXTURES WITH PIPEWORKS.
M00599844 ↗290 5 AVENUE
MANHATTAN
AlterationSigned-off09/30/202101/10/2022
Contractor RANSD DESIGN INC
Filer K & M DOB CONSULTING CORP.
INTERIOR RENOVATION FOR EXISTING NAIL SALON INCLUDING MINOR CARPENTRY WORK FOR PARTITIONS. NO CHANGE IN USE, EGRESS, OR OCCUPANCY.
M00646171 ↗345 SOUTH END AVENUE
MANHATTAN
AlterationSigned-off12/21/202101/07/2022
Owner LEFRAK PROPERTY MANAGEMENT
Contractor RANSD DESIGN INC
Filer K & M DOB CONSULTING CORP.
NAIL SALON RENOVATION INCLUDING MINOR DEMOLITION OF NON-STRUCTURAL PARTITION WALLS, AND BUILT-IN FURNITURE, AND REFINISH WALL, FLOOR, AND CE…
M00650361 ↗345 SOUTH END AVENUE
MANHATTAN
AlterationSigned-off12/21/202101/07/2022
Owner LEFRAK PROPERTY MANAGEMENT
Contractor RANSD DESIGN INC
Filer K & M DOB CONSULTING CORP.
INSTALLATION OF VENTILATION SYSTEM WITH MODIFICATION OF EXISTING EXHAUST DUCT AND INSTALLATION OF HEAP PUMPS AND CONDENSING UNITS.
M00505471 ↗350 3 AVENUE
MANHATTAN
AlterationSigned-off04/30/202108/02/2021
Owner Icon Realty Management, LLC
Contractor RANSD DESIGN INC
Filer K & M DOB CONSULTING CORP.
INTERIOR RENOVATION OF THE EXISTING RESTAURANT INCLUDING MINOR DEMOLITION OF BUILT-IN FURNITURE, REFINISH WALL, FLOOR, CEILING, AND INSTALLA…
M00505488 ↗350 3 AVENUE
MANHATTAN
AlterationPermit Issued05/03/202106/07/2021
Owner Icon Realty Management, LLC
Contractor AVON PLBG & HTG INC
Filer K & M DOB CONSULTING CORP.
INSTALLATION AND MODIFICATION OF COOKING EQUIPMENT.
M00505492 ↗350 3 AVENUE
MANHATTAN
AlterationSigned-off04/30/202106/04/2021
Owner Icon Realty Management, LLC
Contractor RANSD DESIGN INC
Filer K & M DOB CONSULTING CORP.
Installation of temporary construction fence per plan submitted during storefront work. Work shall comply with the 2014 building code chapte…
M00475236 ↗793 AVENUE OF THE AMER
MANHATTAN
AlterationSigned-off03/03/202104/05/2021
Contractor I DO PLUMBING & HTG INC
Filer K & M DOB CONSULTING CORP.
Installation of new plumbing fixtures.
M00475120 ↗793 AVENUE OF THE AMER
MANHATTAN
AlterationSigned-off03/03/202103/17/2021
Contractor RANSD DESIGN INC
Filer K & M DOB CONSULTING CORP.
Interior renovation of the existing restaurant. Minor demolition of non-structural partition wall and built-in furniture, refinish wall, flo…
M00486573 ↗793 AVENUE OF THE AMER
MANHATTAN
AlterationSigned-off03/16/202103/17/2021
Contractor RANSD DESIGN INC
Filer K & M DOB CONSULTING CORP.
Installation of temporary construction fence per plan submitted during storefront work. Work shall comply with the 2014 building code chapte…
M00334070 ↗618 AMSTERDAM AVENUE
MANHATTAN
AlterationPermit Issued04/17/202010/16/2020
Owner RCR MANAGEMENT GROUP LLC
Contractor AVON PLBG & HTG INC
Filer JACK JAFFA & ASSOCIATES
Mechanical work as shown on plans filed herewith
M00328476 ↗618 AMSTERDAM AVENUE
MANHATTAN
AlterationPermit Issued03/12/202007/20/2020
Contractor RANSD DESIGN INC
Installation of temporary construction fence.
Scope of Work
HVAC — 1 project · most recent 03/31/2021
Ventilation Systems
Plumbing — 2 projects · most recent 05/03/2021
Gas Water/Sanitary
Click a row for this entity's own projects, plans and documents at that building.
BuildingFilingsMost Recent
70 BATTERY PLACE ↗208/27/2024
445 AVENUE OF THE AMER ↗112/12/2022
345 SOUTH END AVENUE ↗907/12/2022
158 7 AVENUE ↗405/17/2022
303 BEDFORD AVENUE ↗103/25/2022
290 5 AVENUE ↗209/24/2021
793 AVENUE OF THE AMER ↗809/10/2021
350 3 AVENUE ↗304/16/2021
618 AMSTERDAM AVENUE ↗903/15/2021
▾Documents — 186 on file (BIS + DOB NOW)
▸Plans & Drawings47
▸DOB NOWPlans/Sketch32
09/04/2026M00475120-I1 · 793 AVENUE OF THE AMERRequest digital key ↗
09/04/2026M00475120-P1 · 793 AVENUE OF THE AMERRequest digital key ↗
09/04/2026M00486573-I1 · 793 AVENUE OF THE AMERRequest digital key ↗
Showing 3 of 32 on file for this type
▸DOB NOWPlans/Sketch - Plumbing10
09/04/2026M00334070-P3 · 618 AMSTERDAM AVENUERequest digital key ↗
09/03/2026M00475236-I1 · 793 AVENUE OF THE AMERRequest digital key ↗
08/15/2026M00475236-P4 · 793 AVENUE OF THE AMERRequest digital key ↗
Showing 3 of 10 on file for this type
▸DOB NOWPlans/Sketch - Mechanical Systems2
09/04/2026M00334070-S1 · 618 AMSTERDAM AVENUERequest digital key ↗
Showing 1 of 2 on file for this type
▸DOB NOWPlans/Sketch - General Construction2
09/04/2026M00475120-I1 · 793 AVENUE OF THE AMERRequest digital key ↗
09/04/2026M00475120-P1 · 793 AVENUE OF THE AMERRequest digital key ↗
▸DOB NOWPlans/Sketch - Construction Fence1
09/05/2026M00328476-I1 · 618 AMSTERDAM AVENUERequest digital key ↗
▸Applications & Permits4
▸DOB NOWLPC Approval/Permit4
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 4 on file for this type
▸Seals & Professional Certifications75
▸DOB NOWDPL-1: Design Professional Seal & Signature40
09/05/2026M00328476-I1 · 618 AMSTERDAM AVENUEOpen ↗
09/04/2026M00334070-P3 · 618 AMSTERDAM AVENUEOpen ↗
09/04/2026M00334070-S1 · 618 AMSTERDAM AVENUEOpen ↗
Showing 3 of 40 on file for this type
▸DOB NOWProgress Inspector Seal & Signature18
09/28/2026M00646171-I1 · 345 SOUTH END AVENUEOpen ↗
09/28/2026M00646171-I1 · 345 SOUTH END AVENUEOpen ↗
09/01/2026B00706982-I1 · 303 BEDFORD AVENUEOpen ↗
Showing 3 of 18 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature17
09/28/2026M00646171-I1 · 345 SOUTH END AVENUEOpen ↗
09/01/2026B00706982-I1 · 303 BEDFORD AVENUEOpen ↗
08/31/2026M08019289-I1 · 445 AVENUE OF THE AMEROpen ↗
Showing 3 of 17 on file for this type
▸Safety & Tenant Protection8
▸DOB NOWTenant Protection Plan8
08/13/2026M00328476-I1 · 618 AMSTERDAM AVENUEOpen ↗
Showing 1 of 8 on file for this type
▸Environmental & Asbestos34
▸DOB NOWDEP ACP-5: Asbestos Assessment Report34
09/04/2026M00334070-I1 · 618 AMSTERDAM AVENUEOpen ↗
09/04/2026M00334070-S1 · 618 AMSTERDAM AVENUEOpen ↗
09/04/2026M00334070-P1 · 618 AMSTERDAM AVENUEOpen ↗
Showing 3 of 34 on file for this type
▸Energy Compliance6
▸DOB NOWEN2: As Built Energy Analysis6
09/03/2026M00650361-I1 · 345 SOUTH END AVENUEOpen ↗
08/28/2026B00739922-I1 · 158 7 AVENUEOpen ↗
08/13/2026M00646171-I1 · 345 SOUTH END AVENUEOpen ↗
Showing 3 of 6 on file for this type
▸Approvals, Objections & Sign-offs7
▸DOB NOWDesign Commission Approval City Owned (Exterior Work)7
09/03/2026M00650361-P1 · 345 SOUTH END AVENUEOpen ↗
09/03/2026M00650361-I1 · 345 SOUTH END AVENUEOpen ↗
08/13/2026M00650307-P1 · 345 SOUTH END AVENUEOpen ↗
Showing 3 of 7 on file for this type
▸Other Documents5
▸DOB NOWProof of Historic Building4
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 4 on file for this type
▸DOB NOWHPD: CONH Pilot1
08/13/2026M00505471-I1 · 350 3 AVENUEOpen ↗