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Design Firm
H.F. LENZ COMPANY
Design · filed under 2 names
1 project with open permitsQUEENS · 3MANHATTAN · 3BRONX · 3
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6 buildings
15
Total Filings
9
Projects on File
6
Buildings Worked
1
Projects w/ Open Permits
Design
Role
Activity
Projects by first filing month9 projects all-time
0235Jan '19 · 1Feb '21 · 4Jun '21 · 2Dec '23 · 1Oct '24 · 1201920202021202220232024
bars = month · line = 3-mo average
Portfolio status
Browse projects →
Open permit111%
Signed off889%
By project type
Alteration9
Most active buildings
All buildings →
855 PARK AVENUEMANHATTAN · latest 11/09/2022
2 projects
111 EAST 210 STREETBRONX · latest 09/27/2021
2 projects
56-45 MAIN STREETQUEENS · latest 06/14/2022
2 projects
1275 YORK AVENUEMANHATTAN · latest 01/04/2024
1 projects
1650 GRAND CONCOURSEBRONX · latest 08/30/2019
1 projects
140 BEACH 114 STREETQUEENS · 1 open · latest 01/26/2026
1 projects
Key relationships
Everyone →
Filing representatives
4 projects
2 projects
People
All people →
Steven Gridleylatest 02/01/2021
5 filings
David Blacknerlatest 09/23/2025
1 filings
Filed under
H.F. LENZ COMPANY8H. F. LENZ COMPANY7
Identified by the contact ids of the people who file for the firm and by its email domain (hflenz.com), not by matching names.
Most recent projects
All projects →
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
Q01082564 ↗140 BEACH 114 STREET
QUEENS
AlterationPermit Issued10/09/202401/26/2026
Contractor MAYNE CONSTRUCTION OF LO
Filer METROPOLIS GROUP INC
HEREWITH FILING PLUMBING MODIFICATIONS IN CONJUNCTION WITH BULK OXYGEN SYSTEM UPGRADES PER PLANS.
M00952992 ↗1275 YORK AVENUE
MANHATTAN
AlterationSigned-off12/08/202301/04/2024
Contractor CITYWIDE PLBG HTG & SPKLS
Filer METROPOLIS GROUP INC
Herewith filing for temporary oxygen tank installation and associated piping as per plans. No change in use, occupancy, or egress.
M00463957 ↗855 PARK AVENUE
MANHATTAN
AlterationSigned-off02/22/202111/09/2022
Owner NORTHWELL HEALTH LENOX HILL HOSPITA
Contractor CAPITAL CONTR P&H CORP
Filer DIRECT ACCESS EXPEDITING, INC.
PLUMBING & PIPING ASSOCIATED WITH BULK OXYGEN SYSTEM UPGRADES AS PER PLANS. NO CHANGE IN EGRESS, USE, OR OCCUPANCY.
Q00441706 ↗56-45 MAIN STREET
QUEENS
AlterationSigned-off02/03/202106/14/2022
Contractor CARDOZA PLUMBING CORP
Filer DIRECT ACCESS EXPEDITING, INC.
BULK OXYGEN & LO2 MEDICAL GAS PLUMBING SYSTEM UPGRADES AS PER PLANS. WORK TO INCLUDE ALL ASSOCIATED PIPING. NO CHANGE IN EGRESS, USE, OR OCC…
M00463948 ↗855 PARK AVENUE
MANHATTAN
AlterationSigned-off02/22/202103/18/2022
Contractor CENTRAL CONSULTING & CONT
GENERAL CONSTRUCTION & STRUCTURAL ALTERATIONS IN CONNECTION WITH BULK OXYGEN SYSTEM UPGRADES AS PER PLANS. NO CHANGE TO EGRESS, USE, OR OCC…
X00482103 ↗111 EAST 210 STREET
BRONX
AlterationSigned-off06/25/202109/27/2021
Contractor LJD CONCRETE CORP
GENERAL CONSTRUCTION & STRUCTURAL ALTERATIONS FOR UPGRADES TO EXISTING BULK OXYGEN SYSTEM IN OPEN SPACE AS PER PLANS. WORK TO INCLUDE NEW C…
Counts cover all 9 projects (9 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
Steven Gridley502/01/2021
David Blackner109/23/2025
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
CITYWIDE PLBG HTG & SPKLS402/20/2026
ALJER PLBG & HTG CORP112/22/2021
CAPITAL CONTR P&H CORP112/22/2021
CARDOZA PLUMBING CORP102/03/2021
CENTRAL CONSULTING & CONT106/02/2021
DOUBLE R CONTRACTING INC101/07/2019
LENDLEASE(US)CONSTRUCTION102/03/2021
LJD CONCRETE CORP106/25/2021
MAYNE CONSTRUCTION OF LO102/20/2026
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
BRONX CARE - HEALTH SYSTEM101/07/2019
MONTEFIORE106/24/2021
NORTHWELL HEALTH LENOX HILL HOSPITA112/22/2021
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
DIRECT ACCESS EXPEDITING, INC.412/22/2021
METROPOLIS GROUP INC202/20/2026
9 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 9Open permit 1Signed off 8
9 projects
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
Q01082564 ↗140 BEACH 114 STREET
QUEENS
AlterationPermit Issued10/09/202401/26/2026
Contractor MAYNE CONSTRUCTION OF LO
Filer METROPOLIS GROUP INC
HEREWITH FILING PLUMBING MODIFICATIONS IN CONJUNCTION WITH BULK OXYGEN SYSTEM UPGRADES PER PLANS.
M00952992 ↗1275 YORK AVENUE
MANHATTAN
AlterationSigned-off12/08/202301/04/2024
Contractor CITYWIDE PLBG HTG & SPKLS
Filer METROPOLIS GROUP INC
Herewith filing for temporary oxygen tank installation and associated piping as per plans. No change in use, occupancy, or egress.
M00463957 ↗855 PARK AVENUE
MANHATTAN
AlterationSigned-off02/22/202111/09/2022
Owner NORTHWELL HEALTH LENOX HILL HOSPITA
Contractor CAPITAL CONTR P&H CORP
Filer DIRECT ACCESS EXPEDITING, INC.
PLUMBING & PIPING ASSOCIATED WITH BULK OXYGEN SYSTEM UPGRADES AS PER PLANS. NO CHANGE IN EGRESS, USE, OR OCCUPANCY.
Q00441706 ↗56-45 MAIN STREET
QUEENS
AlterationSigned-off02/03/202106/14/2022
Contractor CARDOZA PLUMBING CORP
Filer DIRECT ACCESS EXPEDITING, INC.
BULK OXYGEN & LO2 MEDICAL GAS PLUMBING SYSTEM UPGRADES AS PER PLANS. WORK TO INCLUDE ALL ASSOCIATED PIPING. NO CHANGE IN EGRESS, USE, OR OCC…
M00463948 ↗855 PARK AVENUE
MANHATTAN
AlterationSigned-off02/22/202103/18/2022
Contractor CENTRAL CONSULTING & CONT
GENERAL CONSTRUCTION & STRUCTURAL ALTERATIONS IN CONNECTION WITH BULK OXYGEN SYSTEM UPGRADES AS PER PLANS. NO CHANGE TO EGRESS, USE, OR OCC…
X00482103 ↗111 EAST 210 STREET
BRONX
AlterationSigned-off06/25/202109/27/2021
Contractor LJD CONCRETE CORP
GENERAL CONSTRUCTION & STRUCTURAL ALTERATIONS FOR UPGRADES TO EXISTING BULK OXYGEN SYSTEM IN OPEN SPACE AS PER PLANS. WORK TO INCLUDE NEW C…
X00479650 ↗111 EAST 210 STREET
BRONX
AlterationSigned-off06/24/202106/24/2021
Owner MONTEFIORE
Contractor CITYWIDE PLBG HTG & SPKLS
Filer DIRECT ACCESS EXPEDITING, INC.
PLUMBING UPGRADES TO EXISTING BULK OXYGEN SYSTEM IN OPEN SPACE, INCLUDING REMOTE FILL BOX & ASSOCIATED PIPING. ALTERATIONS TO COMPLY WITH N…
Q00448152 ↗56-45 MAIN STREET
QUEENS
AlterationSigned-off02/03/202102/23/2021
Contractor LENDLEASE(US)CONSTRUCTION
SITE ALTERATIONS, REMOVAL & REPLACEMENT OF CONCRETE EQUIPMENT PAD, MASONRY WALLS, AND ACCESSORY EXTERIOR STRUCTURES AS PER PLANS IN CONNECTI…
X00108387 ↗1650 GRAND CONCOURSE
BRONX
AlterationSigned-off01/07/201908/30/2019
Owner BRONXCARE HEALTH SYSTEM
Contractor DOUBLE R CONTRACTING
Filer DIRECT ACCESS EXPEDITING, INC.
Install 8' high #9 gauge chain link fence with gates behind property line as per plans in connection with LO2 upgrade project. No change in …
Scope of Work
Plumbing — 1 project · most recent 12/22/2021
Medical Gas
Structural — 1 project · most recent 02/20/2026
No specific sub-scope on file — project count only.
Click a row for this entity's own projects, plans and documents at that building.
BuildingFilingsMost Recent
140 BEACH 114 STREET ↗409/23/2025
855 PARK AVENUE ↗502/01/2021
1650 GRAND CONCOURSE ↗112/10/2018
56-45 MAIN STREET ↗2—
111 EAST 210 STREET ↗2—
1275 YORK AVENUE ↗1—
▾Documents — 57 on file (BIS + DOB NOW)
▸Plans & Drawings18
▸DOB NOWPlans/Sketch8
08/28/2026M00952992-I1 · 1275 YORK AVENUERequest digital key ↗
08/25/2026X00479650-I1 · 111 EAST 210 STREETRequest digital key ↗
08/25/2026X00482103-I1 · 111 EAST 210 STREETRequest digital key ↗
Showing 3 of 8 on file for this type
▸DOB NOWPlans/Sketch - Structural3
09/04/2026M00463948-I1 · 855 PARK AVENUERequest digital key ↗
08/27/2026Q00448152-I1 · 56-45 MAIN STREETRequest digital key ↗
08/15/2026M00463948-P1 · 855 PARK AVENUERequest digital key ↗
▸DOB NOWPlans/Sketch - General Construction3
09/04/2026M00463948-I1 · 855 PARK AVENUERequest digital key ↗
09/04/2026M00463948-P1 · 855 PARK AVENUERequest digital key ↗
08/27/2026Q00448152-I1 · 56-45 MAIN STREETRequest digital key ↗
▸DOB NOWPlans/Sketch - Plumbing3
09/04/2026M00463957-I1 · 855 PARK AVENUERequest digital key ↗
09/04/2026M00463957-P1 · 855 PARK AVENUERequest digital key ↗
08/27/2026Q00441706-I1 · 56-45 MAIN STREETRequest digital key ↗
▸DOB NOWPlans/Sketch - Construction Fence1
08/26/2026X00108387-I1 · 1650 GRAND CONCOURSERequest digital key ↗
▸Seals & Professional Certifications29
▸DOB NOWDPL-1: Design Professional Seal & Signature15
09/04/2026M00463957-I1 · 855 PARK AVENUEOpen ↗
09/04/2026M00463957-P1 · 855 PARK AVENUEOpen ↗
09/04/2026M00463948-I1 · 855 PARK AVENUEOpen ↗
Showing 3 of 15 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature8
09/01/2026Q01082564-S1 · 140 BEACH 114 STREETOpen ↗
08/28/2026Q01082564-P1 · 140 BEACH 114 STREETOpen ↗
08/28/2026Q01082564-P1 · 140 BEACH 114 STREETOpen ↗
Showing 3 of 8 on file for this type
▸DOB NOWProgress Inspector Seal & Signature6
09/01/2026Q01082564-S1 · 140 BEACH 114 STREETOpen ↗
08/28/2026M00463948-I1 · 855 PARK AVENUEOpen ↗
08/26/2026Q01082564-P2 · 140 BEACH 114 STREETOpen ↗
Showing 3 of 6 on file for this type
▸Approvals, Objections & Sign-offs10
▸DOB NOWFee Exempt Supporting Document - DOF ACRIS report or BIB letter10
09/04/2026M00463957-I1 · 855 PARK AVENUEOpen ↗
09/04/2026M00463957-P1 · 855 PARK AVENUEOpen ↗
09/04/2026M00463948-I1 · 855 PARK AVENUEOpen ↗
Showing 3 of 10 on file for this type