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Two family converted from one family
3625 GREYSTONE AVENUE
BRONX · Riverdale-Spuyten Duyvil · BIN 2083989
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1920Year Built
2Stories
B3Building Class
R6Zoning
1,638 sfGross Floor Area
2Units
0 Open Violations
Two family converted from one family · 2,500 sf lot · 0.66 FAR built · Flood zone X
Locations of Work
ArchitectureStructuralPlumbing
Roof5p · 1 filing · 20 docs
Floor 26p · 2 filings · 20 docs
Floor 14p · 1 filing · 20 docs
Cellar7p · 2 filings · 20 docs
▾Sales History (ACRIS)
DatePriceUnitSeller → Buyer$/sf
01/28/2021$720K—— → —$440/sf building
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
AMERILAND BROOK LLC907/17/2025
BRIAN ILL DEVELOPMENT LLC206/02/2025
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
L & J ZHAN CORPGeneral Contractor1607/08/2026
MPS PLUMBING & HEATING INCPlumbing107/08/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
G ENGINEERING PC7778907/17/2025
AMERILAND BROOK LLC1506306/02/2025
Building Lifecycle
All (66)Filed (11)Permit Issued (7)Signed Off (3)Violation (2)Inspection (3)Objection (10)Special Inspection (30)
10/11/2025
Violation issued (ECB, closed)
Construction
07/30/2025
Signed off — Alteration CO
VERTICAL & HORIZONTIAL EXTENSION OF EXISTING ONE FAMILY AND CONVERTING TO TWO FAMILY DWELLING UNITS. OBTAIN NEW C OF O.
X00764789-I1
07/17/2025
Filed — Alteration CO
VERTICAL & HORIZONTIAL EXTENSION OF EXISTING ONE FAMILY AND CONVERTING TO TWO FAMILY DWELLING UNITS. OBTAIN NEW C OF O.
X00764789-P6
07/14/2025
Filed — Alteration CO
VERTICAL & HORIZONTIAL EXTENSION OF EXISTING ONE FAMILY AND CONVERTING TO TWO FAMILY DWELLING UNITS. OBTAIN NEW C OF O.
X00764789-P5
07/14/2025
Special inspection requirement — Concrete - Cast-In-Place
XIONGCAI GU
07/14/2025
Special inspection requirement — Excavations - Sheeting, Shoring, and Bracing
XIONGCAI GU
07/14/2025
Special inspection requirement — Fire-Resistant Penetrations and Joints
XIONGCAI GU
07/14/2025
Special inspection requirement — Heating Systems
XIONGCAI GU
07/14/2025
Special inspection requirement — Masonry
XIONGCAI GU
07/14/2025
Special inspection requirement — Mechanical Systems
XIONGCAI GU
07/14/2025
Special inspection requirement — Private On-Site Storm Water Disposal Systems-, and Detention Facilities, Installation
XIONGCAI GU
07/14/2025
Special inspection requirement — Structural Stability – Alterations of existing buildings
XIONGCAI GU
07/14/2025
Special inspection requirement — Structural Steel - Details
XIONGCAI GU
07/14/2025
Special inspection requirement — Structural Steel - High Strength Bolting
XIONGCAI GU
07/14/2025
Special inspection requirement — Structural Steel - Welding
XIONGCAI GU
07/14/2025
Special inspection requirement — Subgrade Inspections
XIONGCAI GU
07/14/2025
Special inspection requirement — Energy Code Compliance Inspections
XIONGCAI GU
07/14/2025
Special inspection requirement — Final
BRIAN ILL
07/14/2025
Special inspection requirement — Fire-Resistance Rated Construction
XIONGCAI GU
07/14/2025
Special inspection requirement — Footing and Foundation
XIONGCAI GU
07/14/2025
Special inspection requirement — Air barrier - visual inspection
XIONGCAI GU
07/14/2025
Special inspection requirement — HVAC-R and service water heating equipment
XIONGCAI GU
07/14/2025
Special inspection requirement — Air barrier — testing
XIONGCAI GU
07/14/2025
Special inspection requirement — Fenestration and door U-factor and product ratings
XIONGCAI GU
07/14/2025
Special inspection requirement — Permanent certificate
XIONGCAI GU
07/14/2025
Special inspection requirement — Fenestration areas
XIONGCAI GU
07/14/2025
Special inspection requirement — Metering
XIONGCAI GU
07/14/2025
Special inspection requirement — Interior lighting power
XIONGCAI GU
07/14/2025
Special inspection requirement — Insulation placement and R values
XIONGCAI GU
07/14/2025
Special inspection requirement — HVAC-R and service water piping design and insulation
XIONGCAI GU
07/14/2025
Special inspection requirement — Lighting controls
XIONGCAI GU
07/14/2025
Special inspection requirement — Ventilation and air distribution system
XIONGCAI GU
07/14/2025
Special inspection requirement — HVAC-R and service water heating system controls
XIONGCAI GU
07/14/2025
Special inspection requirement — Chimneys and vents
XIONGCAI GU
06/25/2025
Signed off — Alteration
FILE PL WORKTYPE IN CONJUNCTION WITH JOB#X00667156
X00667178-I1
06/17/2025
Violation issued (ECB, closed)
Construction
06/03/2025
Signed off — Alteration CO
VERTICAL & HORIZONTIAL EXTENSION OF EXISTING ONE FAMILY AND CONVERTING TO TWO FAMILY DWELLING UNITS. OBTAIN NEW C OF O.
X00764789-S1
06/02/2025
Filed — Alteration
FILE PL WORKTYPE IN CONJUNCTION WITH JOB#X00667156
X00667178-P2
05/19/2025
Inspection — Pass-Final CND-Occupancy Inspection
Pass
View inspection ↗
04/28/2025
Permit issued — Mechanical Systems
X00764789-I1-FO
04/28/2025
Permit issued — Structural
X00764789-I1-MS
04/28/2025
Permit issued — Earth Work
X00764789-I1-ST
04/28/2025
Permit issued — General Construction
X00764789-I1-EA
04/06/2025
Filed — Alteration CO
VERTICAL & HORIZONTIAL EXTENSION OF EXISTING ONE FAMILY AND CONVERTING TO TWO FAMILY DWELLING UNITS. OBTAIN NEW C OF O.
X00764789-P4
01/10/2025
Inspection — Certified Gas-Gas-Piping-Roughing
Certified
View inspection ↗
01/10/2025
Inspection — Certified Storm Drainage-ST-Piping-Underground
Certified
View inspection ↗
01/02/2025
Filed — Alteration
FILE PL WORKTYPE IN CONJUNCTION WITH JOB#X00667156
X00667178-P1
10/09/2024
Filed — Alteration CO
VERTICAL & HORIZONTIAL EXTENSION OF EXISTING ONE FAMILY AND CONVERTING TO TWO FAMILY DWELLING UNITS. OBTAIN NEW C OF O.
X00764789-P3
09/02/2024
Filed — Alteration CO
VERTICAL & HORIZONTIAL EXTENSION OF EXISTING ONE FAMILY AND CONVERTING TO TWO FAMILY DWELLING UNITS. OBTAIN NEW C OF O.
X00764789-P2
07/23/2024
Permit issued — Foundation
X00764789-I1-GC
07/11/2024
Permit issued — Plumbing
X00667178-I1-PL
07/10/2024
Permit issued — Construction Fence
X00764789-S1-FN
07/01/2024
Filed — Alteration CO
VERTICAL & HORIZONTIAL EXTENSION OF EXISTING ONE FAMILY AND CONVERTING TO TWO FAMILY DWELLING UNITS. OBTAIN NEW C OF O.
X00764789-S1
02/18/2024
Filed — Alteration CO
VERTICAL & HORIZONTIAL EXTENSION OF EXISTING ONE FAMILY AND CONVERTING TO TWO FAMILY DWELLING UNITS. OBTAIN NEW C OF O.
X00764789-P1
09/07/2022
Objection raised — Admin
09/07/2022
Objection resolved — Addressed
07/14/2022
Objection raised — C/O of existing property requi
07/14/2022
Objection resolved — Addressed
07/14/2022
Objection raised — Admin
07/14/2022
Objection resolved — Addressed
Latest 60 of 66 events.
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWMechanical SystemsSigned-offL & J ZHAN CORP04/28/2025
DOB NOWStructuralSigned-offL & J ZHAN CORP04/28/2025
DOB NOWEarth WorkSigned-offL & J ZHAN CORP04/28/2025
DOB NOWGeneral ConstructionSigned-offL & J ZHAN CORP04/28/2025
DOB NOWFoundationPermit IssuedL & J ZHAN CORP07/23/2024
DOB NOWPlumbingSigned-offMPS PLUMBING & HEATING IN07/11/2024
DOB NOWConstruction FenceSigned-offL & J ZHAN CORP07/10/2024
1 project · most recent 07/17/2025
Associated Ducts and Piping Heating Systems
FiledStatusContractorScopeMake / Model / Capacity
07/17/2025Signed-offL & J ZHAN CORPAssociated Ducts and Piping, Heating Systems
Heating
Williamson GWA-140 140,000 BTU · Boiler ×14
Ducts & Piping
Delta Breeze SLIM50 50 CFM · Exhaust Fan ×49
Air King EB30BL 130 CFM · Kitchen Exhaust ×14
2 projects · most recent 05/06/2025
General Wiring
FiledStatusContractorScope
05/06/2025CompleteERIC & NG ELEC'L, INC.3 meters, 3 new_meters
07/10/2024CompleteERIC & NG ELEC'L, INC.General Wiring
1 project · most recent 07/17/2025
Masonry
FiledStatusContractorScope
07/17/2025Signed-offL & J ZHAN CORPMasonry
1 project · most recent 07/17/2025
Fence
FiledStatusContractorScope
07/17/2025Signed-offL & J ZHAN CORPFence
▾Field Inspections (DOB CAP) — 3
DateTypeResultReport
05/19/2025Pass-Final CND-Occupancy InspectionPassView ↗
01/10/2025Certified Gas-Gas-Piping-RoughingCertifiedView ↗
01/10/2025Certified Storm Drainage-ST-Piping-UndergroundCertifiedView ↗
▾Special Inspection Requirements (DOB NOW) — 150
DateRequirementInspectorRole
07/14/2025Structural Steel - High Strength BoltingXIONGCAI GUspecial
07/14/2025Concrete - Cast-In-PlaceXIONGCAI GUspecial
07/14/2025Excavations - Sheeting, Shoring, and BracingXIONGCAI GUspecial
07/14/2025Fire-Resistant Penetrations and JointsXIONGCAI GUspecial
07/14/2025Heating SystemsXIONGCAI GUspecial
07/14/2025MasonryXIONGCAI GUspecial
07/14/2025Mechanical SystemsXIONGCAI GUspecial
07/14/2025Private On-Site Storm Water Disposal Systems-, and Detention Facilities, InstallationXIONGCAI GUspecial
07/14/2025Structural Stability – Alterations of existing buildingsXIONGCAI GUspecial
07/14/2025Structural Steel - DetailsXIONGCAI GUspecial
07/14/2025Footing and FoundationXIONGCAI GUprogress
07/14/2025Air barrier - visual inspectionXIONGCAI GUenergy_progress
07/14/2025HVAC-R and service water heating equipmentXIONGCAI GUenergy_progress
07/14/2025Air barrier — testing XIONGCAI GUenergy_progress
07/14/2025Fenestration and door U-factor and product ratingsXIONGCAI GUenergy_progress
07/14/2025Permanent certificateXIONGCAI GUenergy_progress
07/14/2025Fenestration areasXIONGCAI GUenergy_progress
07/14/2025MeteringXIONGCAI GUenergy_progress
07/14/2025Interior lighting powerXIONGCAI GUenergy_progress
07/14/2025Insulation placement and R valuesXIONGCAI GUenergy_progress
07/14/2025HVAC-R and service water piping design and insulationXIONGCAI GUenergy_progress
07/14/2025Lighting controlsXIONGCAI GUenergy_progress
07/14/2025Ventilation and air distribution systemXIONGCAI GUenergy_progress
07/14/2025HVAC-R and service water heating system controlsXIONGCAI GUenergy_progress
07/14/2025Fenestration air leakageXIONGCAI GUenergy_progress
Latest 25 of 150.
▾Documents — 211 on file (BIS + DOB NOW)
▸Plans & Drawings11
▸DOB NOWPlans/Sketch11
08/21/2026X00764789-P4Request digital key ↗
08/21/2026X00764789-P3Request digital key ↗
08/21/2026X00764789-P2Request digital key ↗
Showing 3 of 11 on file for this type
▸Zoning, Tax Lot & Property Records8
▸DOB NOWZD1: DOB Zoning Diagram7
08/13/2026X00764789-P1Open ↗
08/13/2026X00764789-I1Open ↗
08/13/2026X00764789-P2Open ↗
Showing 3 of 7 on file for this type
▸DOB NOWHouse Number Verification: TOPO Stamp1
08/13/2026X00764789-I1Open ↗
▸Seals & Professional Certifications144
▸DOB NOWProgress Inspector Seal & Signature78
09/02/2026X00667178-P2Open ↗
09/02/2026X00667178-P2Open ↗
09/01/2026X00667178-P1Open ↗
Showing 3 of 78 on file for this type
▸DOB NOWSpecial Inspector Seal & Signature55
09/02/2026X00667178-P2Open ↗
09/01/2026X00667178-P1Open ↗
08/30/2026X00764789-P5Open ↗
Showing 3 of 55 on file for this type
▸DOB NOWDPL-1: Design Professional Seal & Signature11
08/21/2026X00764789-P5Open ↗
08/21/2026X00764789-P4Open ↗
08/21/2026X00764789-P3Open ↗
Showing 3 of 11 on file for this type
▸Safety & Tenant Protection9
▸DOB NOWStreet Tree Checklist7
08/13/2026X00764789-P6Open ↗
08/13/2026X00764789-P3Open ↗
08/13/2026X00764789-P4Open ↗
Showing 3 of 7 on file for this type
▸DOB NOWStreet Trees Site Plan1
08/13/2026X00764789-I1Open ↗
▸DOB NOWParks Department Acknowledgment Letter for Street Trees Plan1
08/13/2026X00764789-I1Open ↗
▸Environmental & Asbestos7
▸DOB NOWDEP ACP-5: Asbestos Assessment Report7
08/21/2026X00764789-P4Open ↗
08/21/2026X00764789-P3Open ↗
08/21/2026X00764789-P2Open ↗
Showing 3 of 7 on file for this type
▸Energy Compliance2
▸DOB NOWEN2: As Built Energy Analysis2
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 2 on file for this type
▸Other Documents30
▸DOB NOWSite Survey: Initial7
08/13/2026X00764789-P6Open ↗
08/13/2026X00764789-P5Open ↗
08/13/2026X00764789-P4Open ↗
Showing 3 of 7 on file for this type
▸DOB NOWLocal Law 92/94 of 2019 Sustainable Roof Zone7
On file, but not among the 200 most recently loaded documents for this source.
Showing 0 of 7 on file for this type
▸DOB NOWPlot Diagram7
08/13/2026X00764789-P5Open ↗
08/13/2026X00764789-P3Open ↗
08/13/2026X00764789-P2Open ↗
Showing 3 of 7 on file for this type
▸DOB NOWProperty Ownership Certification7
08/21/2026X00764789-P5Open ↗
08/21/2026X00764789-P4Open ↗
08/21/2026X00764789-P3Open ↗
Showing 3 of 7 on file for this type
▸DOB NOWFinal Survey1
08/13/2026X00764789-I1Open ↗
▸DOB NOWAdjoining Owners Notification1
08/13/2026X00764789-I1Open ↗