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Design Firm
KEYSTONE STRUCTURAL GROUP
Design · filed under 2 names
5 projects with open permitsBRONX · 9BROOKLYN · 4MANHATTAN · 2
10 buildings
34
Total Filings
17
Projects on File
10
Buildings Worked
5
Projects w/ Open Permits
Design
Role
Activity
Projects by first filing month17 projects all-time
0134May '20 · 1May '21 · 1Aug '21 · 1Oct '21 · 1Jan '22 · 1Oct '22 · 3Dec '22 · 1Jan '23 · 1Apr '23 · 2Jul '23 · 1Sep '23 · 2Nov '23 · 1Mar '25 · 120212022202320242025
bars = month · line = 3-mo average
Portfolio status
Browse projects →
Open permit529%
Signed off1059%
Filed only212%
By project type
Alteration17
Most active buildings
All buildings →
1998 BRUCKNER BOULEVARDBRONX · 1 open · latest 10/06/2023
7 projects
2100 BARTOW AVENUEBRONX · latest 05/12/2023
2 projects
890 BROADWAYMANHATTAN · 1 open · latest 10/29/2025
1 projects
757 3 AVENUEMANHATTAN · 1 open · latest 06/23/2021
1 projects
625 ATLANTIC AVENUEBROOKLYN · latest 11/24/2021
1 projects
154 WYTHE AVENUEBROOKLYN · latest 10/28/2021
1 projects
DANIEL HORNlatest 03/05/2026
20 filings
ANTHONY SHULDElatest 05/30/2024
5 filings
Filed under
KEYSTONE STRUCTURAL GROUP26KEYSTONE STRUCTURAL GROUP, INC8
Identified by the contact ids of the people who file for the firm and by its email domain (ksgengineers.com), not by matching names.
Most recent projects
All projects →
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
M00789444 ↗890 BROADWAY
MANHATTAN
AlterationPermit Issued10/31/202210/29/2025Repair existing sidewalk vault. No change of use, egress or occupancy under this application.
B01176706 ↗2183 RALPH AVENUE
BROOKLYN
AlterationPermit Issued03/11/202510/27/2025INTERIOR DEMO OF EXISTING FIT-OUT, MODIFY, REPAIR OR REPLACE DEMISING WALLS, REPLACEMENT OF STOREFRONT. NO CHANGE IN EGRESS, USE OR OCCUPANC…
B00900077 ↗103 VANDERVEER STREET
BROOKLYN
AlterationFiled — no permit on record11/10/2023——
X08019845 ↗1998 BRUCKNER BOULEVARD
BRONX
AlterationSigned-off09/14/202310/06/2023Hereby filing application for the Foundation work associated with renovations (Unit 9). No change to use, egress, or occupancy.
X08019909 ↗1998 BRUCKNER BOULEVARD
BRONX
AlterationSigned-off09/14/202309/18/2023Hereby filing plans for structural work associated with renovations (Unit 9). No change in use, egress, or occupancy.
X00890528 ↗1998 BRUCKNER BOULEVARD
BRONX
AlterationSigned-off07/17/202307/21/2023Modify existing wood roof framing to support two (2) new mechanical rooftop units (Unit 15 Suite 204) A mechanical shaft will also be constr…
Counts cover all 17 projects (17 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
DANIEL HORN2003/05/2026
ANTHONY SHULDE505/30/2024
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
DJM CONSULTING ENGINEERING103/12/2026
STUDIO 5 PARTNERSHIP103/12/2026
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
RETAIL PROJECT MANGEMENT303/12/2026
SWEET GROUP OF NY LLC304/04/2024
NEW TECH MECHAN SYSTEMS I205/20/2024
APPLE RESTORATION & WATER111/17/2023
BUILDING CONCEPTS INC108/27/2025
F-INT LLC109/15/2021
FRANCO REMODELING CORP111/17/2023
GSTRUCTION CORP110/18/2021
MARINE BULKHEADING INC103/06/2024
RRP PLUMBING CORP103/12/2026
RXR CONSTRUCTION& DEV LLC105/27/2021
THE SWEET CONSTRUCTION GR101/05/2022
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
URBAN EDGE PROPERTIES605/20/2024
ACADIA REALTY TRUST108/27/2025
ANJONIC REAL ESTATE108/01/2024
BALLET TECH111/17/2023
FEDERAL REALTY103/12/2026
REEP-OFC 757 Third Avenue NY LLC105/27/2021
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
BOHLER ENGINEERING605/20/2024
A1 EXPEDITING SERVICE CORP.103/12/2026
DISTINCT ENTERPRISES, INC.110/18/2021
GEORGE E. BERGER & ASS. LLC103/07/2023
NEXT STEP BUILDING SOLUTIONS, INC108/01/2024
NOEL BUILDING CONSULTING INC111/17/2023
RIZZO GROUP105/27/2021
WILLIAM VITACCO ASSOCIATES108/27/2025
17 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 17Open permit 5Signed off 10Filed only 2
17 projects
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
M00789444 ↗890 BROADWAY
MANHATTAN
AlterationPermit Issued10/31/202210/29/2025Repair existing sidewalk vault. No change of use, egress or occupancy under this application.
B01176706 ↗2183 RALPH AVENUE
BROOKLYN
AlterationPermit Issued03/11/202510/27/2025INTERIOR DEMO OF EXISTING FIT-OUT, MODIFY, REPAIR OR REPLACE DEMISING WALLS, REPLACEMENT OF STOREFRONT. NO CHANGE IN EGRESS, USE OR OCCUPANC…
B00900077 ↗103 VANDERVEER STREET
BROOKLYN
AlterationFiled — no permit on record11/10/2023——
X08019845 ↗1998 BRUCKNER BOULEVARD
BRONX
AlterationSigned-off09/14/202310/06/2023Hereby filing application for the Foundation work associated with renovations (Unit 9). No change to use, egress, or occupancy.
X08019909 ↗1998 BRUCKNER BOULEVARD
BRONX
AlterationSigned-off09/14/202309/18/2023Hereby filing plans for structural work associated with renovations (Unit 9). No change in use, egress, or occupancy.
X00890528 ↗1998 BRUCKNER BOULEVARD
BRONX
AlterationSigned-off07/17/202307/21/2023Modify existing wood roof framing to support two (2) new mechanical rooftop units (Unit 15 Suite 204) A mechanical shaft will also be constr…
X08011411 ↗1998 BRUCKNER BOULEVARD
BRONX
AlterationSigned-off10/31/202206/22/2023Hereby filing plans for structural work associated with renovations (Unit 11a/11b). No change in use, egress, or occupancy.
X08011529 ↗1998 BRUCKNER BOULEVARD
BRONX
AlterationSigned-off12/05/202206/22/2023Hereby filing application for the Foundation work associated with renovations (Unit 11a/11b). No change to use, egress, or occupancy.
X00858637 ↗2100 BARTOW AVENUE
BRONX
AlterationSigned-off04/27/202305/12/2023IT IS PROPOSED TO REPLACE THE EXISTING STEEL STAIRS WITH NEW STEEL STAIRS. NO CHANGE TO USE, ERGESS OR OCCUPANCY.
X00860750 ↗1998 BRUCKNER BOULEVARD
BRONX
AlterationSigned-off04/28/202305/12/2023Modify existing wood roof framing to support two (2) new mechanical rooftop units (Bruckner Common - Suite 205). There will be no change in…
X00786959 ↗2100 BARTOW AVENUE
BRONX
AlterationSigned-off10/18/202203/14/2023It is proposed to infill floor openings and install steel dunnage as shown on plans for ACS tenant space. No change in egress, use and occup…
S00800692 ↗4343 AMBOY ROAD
STATEN ISLAND
AlterationPermit Issued01/04/202302/11/2023Modify existing roof steel dunnage to support new mechanical rooftop unit along with minor slab-on-grade modifications for plumbing installa…
X00625114 ↗1998 BRUCKNER BOULEVARD
BRONX
AlterationPermit Issued01/05/202201/19/2022Minor structural modifications and associated finishes as per plans. There will be no change in use, egress, or occupancy.
B00540859 ↗625 ATLANTIC AVENUE
BROOKLYN
AlterationSigned-off08/10/202111/24/2021
Contractor FINT LLC
STRUCTURAL WORK ON THE 3RD FLOOR AND ROOF TO SUPPORT MECHANICAL EQUIPMENT INSTALLATION ON THE 2ND FLOOR CEILING AND THE ROOF. ALL MECHANICAL…
B00609655 ↗154 WYTHE AVENUE
BROOKLYN
AlterationSigned-off10/18/202110/28/2021
Contractor GSTRUCTION
Install new steel beam on steel pipe columns on new cast-in-place concrete footings with partial replacement of concrete slab at Cellar floo…
M00518600 ↗757 3 AVENUE
MANHATTAN
AlterationPermit Issued05/27/202106/23/2021STRUCTURAL MODIFICATIONS TAKING PLACE ON THE 27TH FLOOR AS PER DRAWINGS FILED HEREWITH. NO CHANGE IN USE, EGRESS OR OCCUPANCY.
Q00344371 ↗32-53 33 STREET
QUEENS
AlterationFiled — no permit on record05/15/2020——
Scope of Work
HVAC — 1 project · most recent 03/12/2026
Heating Systems
Plumbing — 1 project · most recent 03/12/2026
Gas Water/Sanitary
Structural — 7 projects · most recent 03/12/2026
Concrete Steel Masonry
Click a row for this entity's own projects, plans and documents at that building.
BuildingFilingsMost Recent
2183 RALPH AVENUE ↗203/05/2026
4343 AMBOY ROAD ↗208/21/2025
103 VANDERVEER STREET ↗205/30/2024
1998 BRUCKNER BOULEVARD ↗1405/20/2024
890 BROADWAY ↗511/17/2023
2100 BARTOW AVENUE ↗303/02/2023
154 WYTHE AVENUE ↗110/11/2021
757 3 AVENUE ↗105/07/2021
32-53 33 STREET ↗104/24/2020
625 ATLANTIC AVENUE ↗3—
▾Documents — 213 on file (BIS + DOB NOW)
▸Plans & Drawings36
▸DOB NOWPlans/Sketch35
09/03/2026M00518600-I1 · 757 3 AVENUERequest digital key ↗
Showing 3 of 35 on file for this type
▸DOB NOWPlans/Sketch - Structural1
08/28/2026Q00344371-I1 · 32-53 33 STREETRequest digital key ↗
▸Applications & Permits5
▸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
▸DOB NOWHPD Certification Letter or CPC Special Permit1
09/01/2026B00609655-I1 · 154 WYTHE AVENUEOpen ↗
▸Seals & Professional Certifications134
▸DOB NOWSpecial Inspector Seal & Signature70
09/29/2026X00860750-I1 · 1998 BRUCKNER BOULEVARDOpen ↗
09/29/2026X00860750-I1 · 1998 BRUCKNER BOULEVARDOpen ↗
09/29/2026X00860750-I1 · 1998 BRUCKNER BOULEVARDOpen ↗
Showing 3 of 70 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature36
09/03/2026M00518600-I1 · 757 3 AVENUEOpen ↗
09/01/2026B00540859-P1 · 625 ATLANTIC AVENUEOpen ↗
09/01/2026B00540859-I1 · 625 ATLANTIC AVENUEOpen ↗
Showing 3 of 36 on file for this type
▸DOB NOWProgress Inspector Seal & Signature28
09/29/2026X00860750-I1 · 1998 BRUCKNER BOULEVARDOpen ↗
09/12/2026B01176706-P2 · 2183 RALPH AVENUEOpen ↗
09/02/2026B00609655-I1 · 154 WYTHE AVENUEOpen ↗
Showing 3 of 28 on file for this type
▸Safety & Tenant Protection2
▸DOB NOWHPD-1: Anti-Harassment Area Checklist1
09/01/2026B00609655-I1 · 154 WYTHE AVENUEOpen ↗
▸DOB NOWCertificate of No Harassment1
09/01/2026B00609655-I1 · 154 WYTHE AVENUEOpen ↗
▸Environmental & Asbestos25
▸DOB NOWDEP ACP-5: Asbestos Assessment Report21
09/03/2026M00518600-I1 · 757 3 AVENUEOpen ↗
09/01/2026B00609655-I1 · 154 WYTHE AVENUEOpen ↗
08/28/2026M00789444-P2 · 890 BROADWAYOpen ↗
Showing 3 of 21 on file for this type
▸DOB NOWDEP ACP-20/ACP-21: Asbestos Project Conditional Completion Form/Asbestos Project Completion Form4
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 4 on file for this type
▸Inspections & Test Reports7
▸DOB NOWSOIL REPORT4
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 4 on file for this type
▸DOB NOWTR4 Test Report and Plot Diagram2
08/13/2026X08019845-I1 · 1998 BRUCKNER BOULEVARDOpen ↗
Showing 1 of 2 on file for this type
▸DOB NOWTR5 Test Report1
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-offs3
▸DOB NOWDesign Commission Approval City Owned (Exterior Work)2
09/01/2026B00540859-I1 · 625 ATLANTIC AVENUEOpen ↗
08/13/2026B00540859-P1 · 625 ATLANTIC AVENUEOpen ↗
▸DOB NOWDesign Commission Sign Off City Owned (Exterior Work)1
09/01/2026B00540859-I1 · 625 ATLANTIC AVENUEOpen ↗
▸Other Documents1
▸DOB NOWTR5H Test Report1
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 1 on file for this type