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Design Firm
LEONARD JOEL HERCZEG AIA ARCHITECTS
Design
2 projects with open permitsBROOKLYN · 2
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2 buildings
5
Total Filings
2
Projects on File
2
Buildings Worked
2
Projects w/ Open Permits
Design
Role
Activity
Projects by first filing month2 projects all-time
0112Jun '19 · 1Jul '26 · 12020202120222023202420252026
bars = month · line = 3-mo average
Portfolio status
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Open permit2100%
By project type
Alteration2
Most active buildings
All buildings →
120 DEAN STREETBROOKLYN · 1 open · latest 09/21/2026
1 projects
413 5 STREETBROOKLYN · 1 open · latest 10/02/2019
1 projects
Key relationships
Everyone →
Filing representatives
1 projects
People
All people →
Leonard Herczeglatest 08/19/2026
4 filings
Most recent projects
All projects →
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
B01371207 ↗120 DEAN STREET
BROOKLYN
AlterationPermit Issued07/27/202609/21/2026
Contractor MAC MAINTENANCE & REPAIR
Filer JOSEPH FELLNER
Structural wort filed in conjunction with the renovation of residence. Framing for rear porch and dunnage for roof condensers.
B00175125 ↗413 5 STREET
BROOKLYN
AlterationPermit Issued06/12/201910/02/2019
Contractor G & C BUILDERS IMPRV CORP
Sidewalk fence in conjunction with Job # 321717772.
Counts cover all 2 projects (2 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
Leonard Herczeg408/19/2026
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
ARCO PLBG AND HTG INC109/10/2026
G & C BUILDERS IMPRV CORP106/12/2019
MAC MAINTENANCE & REPAIR109/10/2026
Who this entity's projects were filed with. Top 25 per group by shared jobs.
NameProjects togetherMost recent
JOSEPH FELLNER109/10/2026
2 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 2Open permit 2
2 projects
ProjectAddressTypeStatusFiledLatest permitOn the projectDescription
B01371207 ↗120 DEAN STREET
BROOKLYN
AlterationPermit Issued07/27/202609/21/2026
Contractor MAC MAINTENANCE & REPAIR
Filer JOSEPH FELLNER
Structural wort filed in conjunction with the renovation of residence. Framing for rear porch and dunnage for roof condensers.
B00175125 ↗413 5 STREET
BROOKLYN
AlterationPermit Issued06/12/201910/02/2019
Contractor G & C BUILDERS IMPRV CORP
Sidewalk fence in conjunction with Job # 321717772.
Scope of Work
HVAC — 1 project · most recent 09/10/2026
Heating and Air Conditioning Systems
Plumbing — 1 project · most recent 09/10/2026
Gas Water/Sanitary
Structural — 1 project · most recent 09/10/2026
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
120 DEAN STREET ↗408/19/2026
413 5 STREET ↗1—
▾Documents — 24 on file (BIS + DOB NOW)
▸Plans & Drawings3
▸DOB NOWPlans/Sketch2
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 2 on file for this type
▸DOB NOWPlans/Sketch - Construction Fence1
09/02/2026B00175125-I1 · 413 5 STREETRequest digital key ↗
▸Applications & Permits3
▸DOB NOWLPC Approval/Permit3
09/15/2026B01371207-S3 · 120 DEAN STREETOpen ↗
08/16/2026B01371207-I1 · 120 DEAN STREETOpen ↗
Showing 2 of 3 on file for this type
▸Seals & Professional Certifications14
▸DOB NOWProgress Inspector Seal & Signature6
09/23/2026B01371207-S3 · 120 DEAN STREETOpen ↗
09/23/2026B01371207-S3 · 120 DEAN STREETOpen ↗
08/27/2026B01371207-S1 · 120 DEAN STREETOpen ↗
Showing 3 of 6 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature4
09/23/2026B01371207-S3 · 120 DEAN STREETOpen ↗
08/31/2026B01371207-S2 · 120 DEAN STREETOpen ↗
08/27/2026B01371207-S1 · 120 DEAN STREETOpen ↗
Showing 3 of 4 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature4
09/15/2026B01371207-S3 · 120 DEAN STREETOpen ↗
09/02/2026B00175125-I1 · 413 5 STREETOpen ↗
08/16/2026B01371207-I1 · 120 DEAN STREETOpen ↗
Showing 3 of 4 on file for this type
▸Environmental & Asbestos4
▸DOB NOWDEP ACP-5: Asbestos Assessment Report4
09/15/2026B01371207-S3 · 120 DEAN STREETOpen ↗
09/02/2026B00175125-I1 · 413 5 STREETOpen ↗
Showing 2 of 4 on file for this type