← Back
Design Firm
RIETVELD ARCHITECTS LLP
Design
2 projects with open permitsMANHATTAN · 5
Claim this page
5 buildings
12
Total Filings
5
Projects on File
5
Buildings Worked
2
Projects w/ Open Permits
Design
Role
Activity
Projects by first filing month5 projects all-time
0112Sep '19 · 1Apr '23 · 1Oct '24 · 1May '25 · 1Jul '26 · 12020202120222023202420252026
bars = month · line = 3-mo average
Portfolio status
Browse projects →
Open permit240%
Signed off360%
By project type
Alteration5
Most active buildings
All buildings →
249 8 AVENUEMANHATTAN · 1 open · latest 12/18/2025
1 projects
157 EAST 37 STREETMANHATTAN · latest 11/19/2024
1 projects
60 EAST END AVENUEMANHATTAN · latest 02/11/2025
1 projects
1270 5 AVENUEMANHATTAN · latest 01/27/2022
1 projects
150 WEST 56 STREETMANHATTAN · 1 open · latest 09/18/2026
1 projects
Key relationships
Everyone →
Design firms
1 projects
Filing representatives
3 projects
Owners
1 projects
People
All people →
MARGARET RIETVELDlatest 06/09/2026
9 filings
Filed under
RIETVELD ARCHITECTS LLP12
Identified by the contact ids of the people who file for the firm and by its email domain (rietveldarchitects.com), not by matching names.
Most recent projects
All projects →
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
M01413870 ↗150 WEST 56 STREET
MANHATTAN
AlterationPermit Issued07/31/202609/18/2026
Contractor AVID NYC CORP
Filer JAM CONSULTANTS, INC.
Modification to existing plumbing fixtures related to apartment renovation. No change to occupancy, use or egress.
M01157281 ↗249 8 AVENUE
MANHATTAN
AlterationPermit Issued05/27/202512/18/2025
Contractor N AND S PLUMBING INC
Filer JAM CONSULTANTS, INC.
mechanical work as shown on drawings filed herewith.
M01127836 ↗60 EAST END AVENUE
MANHATTAN
AlterationSigned-off10/23/202402/11/2025
Owner AKAM ASSOCIATES, INC.
Contractor TRIUMPH PLUMBING & HTG
Filer JAM CONSULTANTS, INC.
plumbing work as shown on drawings filed herewith.
M00843107 ↗157 EAST 37 STREET
MANHATTAN
AlterationSigned-off04/24/202311/19/2024
Contractor EXCELLENT GENERAL CONTRA*
general construction associated with replacement of solarium and facade repair as shown on drawings filed herewith. no change in use, egress…
M00217790 ↗1270 5 AVENUE
MANHATTAN
AlterationSigned-off09/04/201901/27/2022
Contractor M&G PLUMBING AND HEATING
Filer JANCO BUILDING CONSULTANTS, LLC.
PROPOSE TO THE PLUMBING FIXTURES IN THIS EXISTING APARTMENT AS PER PLANS FILED HEREWITH. NO CHANGE TO ZONING, USE, EGRESS OR OCCUPANCY.
Counts cover all 5 projects (5 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
MARGARET RIETVELD906/09/2026
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
CES ENGINEERING LLC106/17/2026
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
GOLDEN I CONSTRUCTION INC206/17/2026
A&H EXPRESS PLBG&HTG CORP106/17/2026
AVID NYC CORP107/31/2026
EXCELLENT GENERAL CONTRA*104/24/2023
HVAC EXPERTS, INC106/17/2026
KISHAN PLUMBING INC106/17/2026
M&G PLUMBING AND HEATING106/28/2021
TESTERMAN PLBG & HTG INC107/31/2026
TRIUMPH PLUMBING & HTG110/23/2024
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
AKAM ASSOCIATES, INC.110/23/2024
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
JAM CONSULTANTS, INC.307/31/2026
5 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 5Open permit 2Signed off 3
5 projects
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
M01413870 ↗150 WEST 56 STREET
MANHATTAN
AlterationPermit Issued07/31/202609/18/2026
Contractor AVID NYC CORP
Filer JAM CONSULTANTS, INC.
Modification to existing plumbing fixtures related to apartment renovation. No change to occupancy, use or egress.
M01157281 ↗249 8 AVENUE
MANHATTAN
AlterationPermit Issued05/27/202512/18/2025
Contractor N AND S PLUMBING INC
Filer JAM CONSULTANTS, INC.
mechanical work as shown on drawings filed herewith.
M01127836 ↗60 EAST END AVENUE
MANHATTAN
AlterationSigned-off10/23/202402/11/2025
Owner AKAM ASSOCIATES, INC.
Contractor TRIUMPH PLUMBING & HTG
Filer JAM CONSULTANTS, INC.
plumbing work as shown on drawings filed herewith.
M00843107 ↗157 EAST 37 STREET
MANHATTAN
AlterationSigned-off04/24/202311/19/2024
Contractor EXCELLENT GENERAL CONTRA*
general construction associated with replacement of solarium and facade repair as shown on drawings filed herewith. no change in use, egress…
M00217790 ↗1270 5 AVENUE
MANHATTAN
AlterationSigned-off09/04/201901/27/2022
Contractor M&G PLUMBING AND HEATING
Filer JANCO BUILDING CONSULTANTS, LLC.
PROPOSE TO THE PLUMBING FIXTURES IN THIS EXISTING APARTMENT AS PER PLANS FILED HEREWITH. NO CHANGE TO ZONING, USE, EGRESS OR OCCUPANCY.
Scope of Work
HVAC — 1 project · most recent 06/17/2026
Air Conditioning Systems
Plumbing — 3 projects · most recent 07/31/2026
Gas Water/Sanitary
Click a row for this entity's own projects, plans and documents at that building.
BuildingFilingsMost Recent
150 WEST 56 STREET ↗206/09/2026
249 8 AVENUE ↗306/16/2025
60 EAST END AVENUE ↗210/16/2024
1270 5 AVENUE ↗406/10/2021
157 EAST 37 STREET ↗1—
▾Documents — 54 on file (BIS + DOB NOW)
▸Plans & Drawings12
▸DOB NOWPlans/Sketch9
08/31/2026M00843107-I1 · 157 EAST 37 STREETRequest digital key ↗
08/25/2026M01127836-I1 · 60 EAST END AVENUERequest digital key ↗
08/25/2026M01127836-S1 · 60 EAST END AVENUERequest digital key ↗
Showing 3 of 9 on file for this type
▸DOB NOWPlans/Sketch - Plumbing3
09/04/2026M00217790-I1 · 1270 5 AVENUERequest digital key ↗
08/15/2026M00217790-P2 · 1270 5 AVENUERequest digital key ↗
08/15/2026M00217790-P1 · 1270 5 AVENUERequest digital key ↗
▸Seals & Professional Certifications29
▸DOB NOWProgress Inspector Seal & Signature14
09/23/2026M01157281-S2 · 249 8 AVENUEOpen ↗
09/23/2026M01157281-S2 · 249 8 AVENUEOpen ↗
09/23/2026M01157281-S2 · 249 8 AVENUEOpen ↗
Showing 3 of 14 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature12
09/04/2026M00217790-P2 · 1270 5 AVENUEOpen ↗
09/04/2026M00217790-P1 · 1270 5 AVENUEOpen ↗
09/04/2026M00217790-I1 · 1270 5 AVENUEOpen ↗
Showing 3 of 12 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature3
09/23/2026M01157281-S2 · 249 8 AVENUEOpen ↗
09/23/2026M01157281-S2 · 249 8 AVENUEOpen ↗
09/01/2026M01157281-I1 · 249 8 AVENUEOpen ↗
▸Safety & Tenant Protection1
▸DOB NOWTenant Protection Plan1
08/13/2026M00217790-I1 · 1270 5 AVENUEOpen ↗
▸Environmental & Asbestos12
▸DOB NOWDEP ACP-5: Asbestos Assessment Report11
09/04/2026M00217790-P1 · 1270 5 AVENUEOpen ↗
09/04/2026M00217790-P2 · 1270 5 AVENUEOpen ↗
09/04/2026M00217790-I1 · 1270 5 AVENUEOpen ↗
Showing 3 of 11 on file for this type
▸DOB NOWDEP ACP-20/ACP-21: Asbestos Project Conditional Completion Form/Asbestos Project Completion Form1
08/31/2026M00843107-I1 · 157 EAST 37 STREETOpen ↗