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Two family converted from one family
505 1 STREET
BROOKLYN · Park Slope · BIN 3025083
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1890Year Built
3Stories
B3Building Class
R6BZoning
3,896 sfGross Floor Area
2Units
0 Open ViolationsFDNY Report ↗
Two family converted from one family · Owner of record: LITTLE CORNER LLC · 2,000 sf lot · 1.95 FAR built · Flood zone X
Locations of Work
ArchitectureMechanicalPlumbing
Roof1p · 1 filing · 5 docs
Floor 31p · 1 filing · 5 docs
Floor 21p · 1 filing · 5 docs
Floor 11p · 1 filing · 5 docs
Cellar2p · 2 filings · 10 docs
Basement1p · 1 filing · 5 docs
▾Sales History (ACRIS)
DatePriceUnitSeller → Buyer$/sf
05/14/2020$4.4M—505FIRST LLC → LITTLE CORNER LLC$1,140/sf building
04/29/2014$4.1M—— → —$1,055/sf building
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
ANDREW KATZ ENGINEERS201/07/2020
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
MAR CODE INCGeneral Contractor107/08/2026
LIQUID PLBG & HTNG SCS INPlumbing107/08/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
KATZ ARCHITECTURE1371201/07/2020
Building Lifecycle
All (7)Filed (2)Permit Issued (2)Signed Off (2)Violation (1)
05/28/2020
Signed off — Alteration
B00281540-I1
03/19/2020
Permit issued — Mechanical Systems
B00281540-I1-MS
02/18/2020
Signed off — Alteration
B00230272-I1
01/07/2020
Filed — Alteration
B00281540-I1
11/18/2019
Permit issued — Plumbing
B00230272-I1-PL
10/01/2019
Filed — Alteration
B00230272-I1
10/09/2014
Violation issued (DOB, closed)
V*-DOB VIOLATION - DISMISSED
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWMechanical SystemsSigned-offMAR CODE INC03/19/2020
DOB NOWPlumbingSigned-offLIQUID PLBG & HTNG SCS IN11/18/2019
Nothing on file for this building.
Nothing on file for this building.
▾Documents — 10 on file (BIS + DOB NOW)
▸Plans & Drawings2
▸DOB NOWPlans/Sketch - Mechanical Systems1
09/02/2026B00281540-I1Request digital key ↗
▸DOB NOWPlans/Sketch - Plumbing Legalization1
09/02/2026B00230272-I1Request digital key ↗
▸Applications & Permits2
▸DOB NOWLPC Approval/Permit2
08/13/2026B00230272-I1Open ↗
08/13/2026B00281540-I1Open ↗
▸Seals & Professional Certifications2
▸DOB NOWDPL-1: Design Professional Seal & Signature2
08/13/2026B00230272-I1Open ↗
08/13/2026B00281540-I1Open ↗
▸Safety & Tenant Protection2
▸DOB NOWTenant Protection Plan2
08/13/2026B00230272-I1Open ↗
08/13/2026B00281540-I1Open ↗
▸Environmental & Asbestos2
▸DOB NOWDEP ACP-5: Asbestos Assessment Report2
08/13/2026B00281540-I1Open ↗
08/13/2026B00230272-I1Open ↗