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Design Firm
RON CZAJKA ARCHITECT, LLC
Design
1 project with open permitsMANHATTAN · 3
2 buildings
3
Total Filings
3
Projects on File
2
Buildings Worked
1
Projects w/ Open Permits
Design
Role
Activity
Projects by first filing month3 projects all-time
0123Jan '20 · 1Feb '24 · 220202021202220232024
bars = month · line = 3-mo average
Portfolio status
Browse projects →
Open permit133%
Signed off267%
By project type
Alteration3
Most active buildings
All buildings →
350 EAST 77 STREETMANHATTAN · 1 open · latest 10/24/2025
2 projects
135 WEST 80 STREETMANHATTAN · latest 11/24/2020
1 projects
Key relationships
Everyone →
Filing representatives
RONALD CZAJKAlatest 03/08/2022
3 filings
Filed under
RON CZAJKA ARCHITECT, LLC3
Identified by the contact ids of the people who file for the firm and by its email domain (rc-arch.com), not by matching names.
Most recent projects
All projects →
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
M00694322 ↗350 EAST 77 STREET
MANHATTAN
AlterationSigned-off02/02/202410/24/2025Plumbing work associated with kitchen and bathroom renovation in Apt. #5P on the 5th floor. No change to use, egress or occupancy.
M00694319 ↗350 EAST 77 STREET
MANHATTAN
AlterationPermit Issued02/02/202409/17/2025Apartment renovation including removal and installation of non-bearing interior partitions, flooring, cabinets and doors in Apt #5P on the 5…
M00279028 ↗135 WEST 80 STREET
MANHATTAN
AlterationSigned-off01/07/202011/24/2020Herewith filing new Alt2 application for minor plumbing work. All according to submitted plans. No changes to use, egress or occupancy under…
Counts cover all 3 projects (3 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
RONALD CZAJKA303/08/2022
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
ALKLEM PLUMBING INC101/07/2020
NEW MOON CONSTRUCTION COR102/02/2024
PAL-MAR PLBG & HTG INC102/02/2024
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
J. CALLAHAN CONSULTING, INC.202/02/2024
3 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 3Open permit 1Signed off 2
3 projects
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
M00694322 ↗350 EAST 77 STREET
MANHATTAN
AlterationSigned-off02/02/202410/24/2025Plumbing work associated with kitchen and bathroom renovation in Apt. #5P on the 5th floor. No change to use, egress or occupancy.
M00694319 ↗350 EAST 77 STREET
MANHATTAN
AlterationPermit Issued02/02/202409/17/2025Apartment renovation including removal and installation of non-bearing interior partitions, flooring, cabinets and doors in Apt #5P on the 5…
M00279028 ↗135 WEST 80 STREET
MANHATTAN
AlterationSigned-off01/07/202011/24/2020Herewith filing new Alt2 application for minor plumbing work. All according to submitted plans. No changes to use, egress or occupancy under…
Click a row for this entity's own projects, plans and documents at that building.
BuildingFilingsMost Recent
350 EAST 77 STREET ↗203/08/2022
135 WEST 80 STREET ↗112/10/2019
▾Documents — 16 on file (BIS + DOB NOW)
▸Plans & Drawings3
▸DOB NOWPlans/Sketch2
▸DOB NOWPlans/Sketch - Plumbing1
▸Applications & Permits1
▸DOB NOWLPC Approval/Permit1
08/13/2026M00279028-I1 · 135 WEST 80 STREETOpen ↗
▸Seals & Professional Certifications8
▸DOB NOWProgress Inspector Seal & Signature4
08/30/2026M00694319-I1 · 350 EAST 77 STREETOpen ↗
08/30/2026M00694319-I1 · 350 EAST 77 STREETOpen ↗
08/30/2026M00694319-I1 · 350 EAST 77 STREETOpen ↗
Showing 3 of 4 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature3
08/28/2026M00694319-I1 · 350 EAST 77 STREETOpen ↗
08/13/2026M00694322-I1 · 350 EAST 77 STREETOpen ↗
08/13/2026M00279028-I1 · 135 WEST 80 STREETOpen ↗
▸DOB NOWSpecial Inspector Seal & Signature1
08/30/2026M00694319-I1 · 350 EAST 77 STREETOpen ↗
▸Safety & Tenant Protection1
▸DOB NOWTenant Protection Plan1
08/13/2026M00279028-I1 · 135 WEST 80 STREETOpen ↗
▸Environmental & Asbestos3
▸DOB NOWDEP ACP-5: Asbestos Assessment Report3
08/15/2026M00694319-I1 · 350 EAST 77 STREETOpen ↗
08/13/2026M00279028-I1 · 135 WEST 80 STREETOpen ↗
08/13/2026M00694322-I1 · 350 EAST 77 STREETOpen ↗