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212BOX ARCHITECTURE PC
Design
3 projects with open permitsMANHATTAN · 9BROOKLYN · 5
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12 buildings
22
Total Filings
14
Projects on File
12
Buildings Worked
3
Projects w/ Open Permits
Design
Role
Activity
Projects by first filing month14 projects all-time
0123Nov '19 · 2Apr '21 · 1Sep '21 · 1Nov '22 · 1Aug '23 · 1Oct '23 · 1Nov '23 · 2Jun '25 · 2Jan '26 · 1Mar '26 · 1Jul '26 · 12020202120222023202420252026
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Open permit321%
Signed off1071%
Filed only17%
By project type
Alteration13
Alteration CO1
Most active buildings
All buildings →
670 WEST END AVENUEMANHATTAN · latest 02/01/2024
2 projects
698 NOSTRAND AVENUEBROOKLYN · latest 07/17/2025
2 projects
130 EAST 23 STREETMANHATTAN · latest 12/28/2023
1 projects
425 PARK AVENUE SOUTHMANHATTAN · latest 05/28/2021
1 projects
44 WEST 77 STREETMANHATTAN · 1 open · latest 03/24/2026
1 projects
100 PARK AVENUEMANHATTAN · latest 12/20/2022
1 projects
Key relationships
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Contractors
4 projects
2 projects
1 projects
1 projects
People
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EUN SUN CHUNlatest 06/17/2026
17 filings
Most recent projects
All projects →
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
B01418365 ↗700 PACIFIC STREET
BROOKLYN
AlterationFiled — no permit on record07/16/2026—
Owner NEWSWALK CONDOMINIUM
Filer J. CALLAHAN CONSULTING, INC.
—
B01368059 ↗46 WILLOW PLACE
BROOKLYN
AlterationPermit Issued03/18/202603/26/2026
Contractor ORENSE CONSTRUCTION CORP
Filer SOL BUILDING CONSULTING SERVICES
INSTALLATION OF TEMPORARY CONSTRUCTION FENCE. NO CHANGE IN USE, EGRESS, OR OCCUPANCY UNDER THIS APPLICATION.
M01339477 ↗44 WEST 77 STREET
MANHATTAN
AlterationPermit Issued01/22/202603/24/2026
Owner SOLSTICE RESIDENTIAL GROUP
Contractor METROTECH MECHANICAL CORP
Filer J. CALLAHAN CONSULTING, INC.
Interior renovation of existing apartment (#8W) on the 8th floor. No change to use, egress or occupancy.
B01238185 ↗698 NOSTRAND AVENUE
BROOKLYN
AlterationSigned-off06/16/202507/17/2025
Contractor ORENSE CONSTRUCTION CORP
Filer SOL BUILDING CONSULTING SERVICES
EXTERIOR AND INTERIOR RENOVATION INCLUDING FACADE WORK AND INTERIOR PARTITIONS. NO CHANGE IN USE, EGRESS, OR OCCUPANCY.
B01238186 ↗698 NOSTRAND AVENUE
BROOKLYN
AlterationSigned-off06/16/202507/17/2025
Contractor ORENSE CONSTRUCTION CORP
Filer SOL BUILDING CONSULTING SERVICES
TEMPORARY FENCE AT FRONT FACADE FOR INCLUDING FACADE WORK AND INTERIOR PARTITIONS. NO CHANGE IN USE, EGRESS, OR OCCUPANCY.
M00966755 ↗670 WEST END AVENUE
MANHATTAN
AlterationSigned-off11/30/202302/01/2024
Contractor ORENSE CONSTRUCTION CORP
Filer J. CALLAHAN CONSULTING, INC.
Interior renovation of apartment (#15D) on the 15th floor, including partitions, doors, and finishes. Rearrange kitchen and bathrooms fixtur…
Counts cover all 14 projects (14 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
EUN SUN CHUN1706/17/2026
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
ORENSE CONSTRUCTION CORP403/18/2026
MC SQUARED CORP209/20/2023
DKT CONTRACTORS LLC111/18/2022
H.I.I. CORP110/12/2023
J&M PLUMBING OF WESTCHEST104/29/2024
METROTECH MECHANICAL CORP101/22/2026
QMB PLUMBING & HEATING IN111/15/2019
R & G MECHANICAL CORP111/20/2023
SIGNORE & SONS PLBG CORP111/20/2023
VILLAGE P & H NY INC111/18/2019
WESTSHORE INTERIORS INC101/22/2026
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
MIDBORO MANAGEMENT111/15/2019
NEWSWALK CONDOMINIUM107/16/2026
SL GREEN REALTY CORP111/18/2022
SOLSTICE RESIDENTIAL GROUP, LLC101/22/2026
THE KIPS BAY TOWERS CONDOMINIUM111/18/2019
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
J. CALLAHAN CONSULTING, INC.707/16/2026
SOL BUILDING CONSULTING SERVICES303/18/2026
A1 EXPEDITING SERVICE CORP.111/18/2022
14 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 14Open permit 3Signed off 10Filed only 1
Any typeAlteration 13Alteration CO 1
14 projects
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
B01418365 ↗700 PACIFIC STREET
BROOKLYN
AlterationFiled — no permit on record07/16/2026—
Owner NEWSWALK CONDOMINIUM
Filer J. CALLAHAN CONSULTING, INC.
—
B01368059 ↗46 WILLOW PLACE
BROOKLYN
AlterationPermit Issued03/18/202603/26/2026
Contractor ORENSE CONSTRUCTION CORP
Filer SOL BUILDING CONSULTING SERVICES
INSTALLATION OF TEMPORARY CONSTRUCTION FENCE. NO CHANGE IN USE, EGRESS, OR OCCUPANCY UNDER THIS APPLICATION.
M01339477 ↗44 WEST 77 STREET
MANHATTAN
AlterationPermit Issued01/22/202603/24/2026
Owner SOLSTICE RESIDENTIAL GROUP
Contractor METROTECH MECHANICAL CORP
Filer J. CALLAHAN CONSULTING, INC.
Interior renovation of existing apartment (#8W) on the 8th floor. No change to use, egress or occupancy.
B01238185 ↗698 NOSTRAND AVENUE
BROOKLYN
AlterationSigned-off06/16/202507/17/2025
Contractor ORENSE CONSTRUCTION CORP
Filer SOL BUILDING CONSULTING SERVICES
EXTERIOR AND INTERIOR RENOVATION INCLUDING FACADE WORK AND INTERIOR PARTITIONS. NO CHANGE IN USE, EGRESS, OR OCCUPANCY.
B01238186 ↗698 NOSTRAND AVENUE
BROOKLYN
AlterationSigned-off06/16/202507/17/2025
Contractor ORENSE CONSTRUCTION CORP
Filer SOL BUILDING CONSULTING SERVICES
TEMPORARY FENCE AT FRONT FACADE FOR INCLUDING FACADE WORK AND INTERIOR PARTITIONS. NO CHANGE IN USE, EGRESS, OR OCCUPANCY.
M00966755 ↗670 WEST END AVENUE
MANHATTAN
AlterationSigned-off11/30/202302/01/2024
Contractor ORENSE CONSTRUCTION CORP
Filer J. CALLAHAN CONSULTING, INC.
Interior renovation of apartment (#15D) on the 15th floor, including partitions, doors, and finishes. Rearrange kitchen and bathrooms fixtur…
M00966773 ↗670 WEST END AVENUE
MANHATTAN
AlterationSigned-off11/30/202302/01/2024
Contractor J&M PLUMBING OF WESTCHEST
Filer J. CALLAHAN CONSULTING, INC.
Rearranging kitchen and bathroom fixtures within same footprint in Apt. #15D on the 15th floor. No change to use, egress or occupancy.
M00902552 ↗130 EAST 23 STREET
MANHATTAN
AlterationSigned-off08/09/202312/28/2023
Contractor SIGNORE & SONS PLBG CORP
Filer J. CALLAHAN CONSULTING, INC.
Installation of gas BBQ and fire pit on terrace of #S901 on the 9th floor. No change to use, egress or occupancy.
M00935188 ↗90 MORTON STREET
MANHATTAN
AlterationSigned-off10/12/202310/18/2023
Contractor H.I.I. CORP
MINOR INTERIOR RENOVATION ON EXISTING APARTMENT UNIT#6B AS PER PLANS FILED HEREWITH. NO CHANGE IN USE, EGRESS OR OCCUPANCY.
M08027077 ↗100 PARK AVENUE
MANHATTAN
AlterationSigned-off11/18/202212/20/2022
Owner SL GREEN REALTY CORP
Contractor DKT CONTRACTORS LLC
Filer A1 EXPEDITING SERVICE CORP.
INSTALLATION OF NON LOAD BEARING PARTITIONS AS PER PLANS. NO CHANGE IN USE, EGRESS OR OCCUPANCY.
B00548572 ↗317 STERLING PLACE
BROOKLYN
Alteration COPermit Issued09/30/202110/17/2022
Contractor MC SQUARED CORP
Filer J. CALLAHAN CONSULTING, INC.
Interior renovation and addition to an existing townhouse. Conversion of a 2-Family home to a 1-family home. Exterior scope of work includes…
M00484933 ↗425 PARK AVENUE SOUTH
MANHATTAN
AlterationSigned-off04/27/202105/28/2021
Contractor MC SQUARED CORP
Filer J. CALLAHAN CONSULTING, INC.
INTERIOR RENOVATION OF AN EXISTING RESIDENTIAL SPACE AS PER PLANS. SUPERSEDING APPLICATION #104278498. NO CHANGE OF USE, OCCUPANCY OR EGRESS…
M00264364 ↗333 EAST 30 STREET
MANHATTAN
AlterationSigned-off11/18/201901/05/2021
Owner THE KIPS BAY TOWERS CONDOMINIUM
Contractor VILLAGE P & H NY INC
Filer J. CALLAHAN CONSULTING, INC.
MINOR PLUMBING WORK AS PER PLANS. NO CHANGE OF USE, EGRESS OR OCCUPANCY UNDER THIS APPLICATION.
M00264544 ↗235 WEST END AVENUE
MANHATTAN
AlterationSigned-off11/15/201912/20/2019
Owner MIDBORO MANAGEMENT
Contractor QMB PLUMBING & HEATING INC
Filer J. CALLAHAN CONSULTING, INC.
MINOR PLUMBING AS PER PLANS. NO CHANGE OF USE, EGRESS OR OCCUPANCY UNDER THIS APPLICATION.
Scope of Work
Plumbing — 1 project · most recent 07/16/2026
Water/Sanitary
Fence / Scaffold / Sign / Shed — 1 project · most recent 03/18/2026
Fence
Click a row for this entity's own projects, plans and documents at that building.
BuildingFilingsMost Recent
700 PACIFIC STREET ↗206/17/2026
46 WILLOW PLACE ↗103/05/2026
44 WEST 77 STREET ↗312/23/2025
698 NOSTRAND AVENUE ↗206/09/2025
670 WEST END AVENUE ↗304/01/2024
130 EAST 23 STREET ↗311/16/2023
317 STERLING PLACE ↗308/10/2023
100 PARK AVENUE ↗110/25/2022
425 PARK AVENUE SOUTH ↗103/11/2021
235 WEST END AVENUE ↗111/13/2019
333 EAST 30 STREET ↗1—
90 MORTON STREET ↗1—
▾Documents — 92 on file (BIS + DOB NOW)
▸Plans & Drawings20
▸DOB NOWPlans/Sketch18
09/03/2026M00484933-I1 · 425 PARK AVENUE SOUTHRequest digital key ↗
09/01/2026M08027077-I1 · 100 PARK AVENUERequest digital key ↗
08/29/2026M00935188-I1 · 90 MORTON STREETRequest digital key ↗
Showing 3 of 18 on file for this type
▸DOB NOWPlans/Sketch - Plumbing2
09/05/2026M00264544-I1 · 235 WEST END AVENUERequest digital key ↗
09/05/2026M00264364-I1 · 333 EAST 30 STREETRequest digital key ↗
▸Applications & Permits8
▸DOB NOWLPC Approval/Permit8
08/13/2026M00966773-P1 · 670 WEST END AVENUEOpen ↗
08/13/2026M00966773-I1 · 670 WEST END AVENUEOpen ↗
08/13/2026M01339477-I1 · 44 WEST 77 STREETOpen ↗
Showing 3 of 8 on file for this type
▸Zoning, Tax Lot & Property Records1
▸DOB NOWHouse Number Verification: TOPO Stamp1
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 1 on file for this type
▸Seals & Professional Certifications35
▸DOB NOWDPL-1: Design Professional Seal & Signature20
08/29/2026M00935188-I1 · 90 MORTON STREETOpen ↗
08/28/2026M00902552-P2 · 130 EAST 23 STREETOpen ↗
08/28/2026M00902552-P1 · 130 EAST 23 STREETOpen ↗
Showing 3 of 20 on file for this type
▸DOB NOWProgress Inspector Seal & Signature9
08/30/2026B00548572-P1 · 317 STERLING PLACEOpen ↗
08/30/2026B00548572-P1 · 317 STERLING PLACEOpen ↗
08/30/2026B00548572-P1 · 317 STERLING PLACEOpen ↗
Showing 3 of 9 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature6
08/30/2026B00548572-P1 · 317 STERLING PLACEOpen ↗
08/28/2026M01339477-I1 · 44 WEST 77 STREETOpen ↗
08/28/2026M01339477-I1 · 44 WEST 77 STREETOpen ↗
Showing 3 of 6 on file for this type
▸Safety & Tenant Protection5
▸DOB NOWTenant Protection Plan2
08/13/2026M00264364-I1 · 333 EAST 30 STREETOpen ↗
08/13/2026M00264544-I1 · 235 WEST END AVENUEOpen ↗
▸DOB NOWStreet Tree Checklist2
08/26/2026B00548572-P1 · 317 STERLING PLACEOpen ↗
08/26/2026B00548572-I1 · 317 STERLING PLACEOpen ↗
▸DOB NOWParks Department Acknowledgment Letter for Street Trees Plan1
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 1 on file for this type
▸Environmental & Asbestos14
▸DOB NOWDEP ACP-5: Asbestos Assessment Report14
08/29/2026M00935188-I1 · 90 MORTON STREETOpen ↗
08/28/2026M00966773-P1 · 670 WEST END AVENUEOpen ↗
08/28/2026M00966773-I1 · 670 WEST END AVENUEOpen ↗
Showing 3 of 14 on file for this type
▸Energy Compliance1
▸DOB NOWEN2: As Built Energy Analysis.1
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 1 on file for this type
▸Approvals, Objections & Sign-offs1
▸DOB NOWLandmark Approval1
09/01/2026B00548572-I1 · 317 STERLING PLACEOpen ↗
▸Other Documents7
▸DOB NOWSURVEY: INITIAL2
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 2 on file for this type
▸DOB NOWPD1 Document2
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 2 on file for this type
▸DOB NOWDHCR Document1
08/13/2026M00264544-I1 · 235 WEST END AVENUEOpen ↗
▸DOB NOWFinal Survey1
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 1 on file for this type
▸DOB NOWProof of Historic Building1
08/13/2026M01339477-I1 · 44 WEST 77 STREETOpen ↗