City residence, one family

4506 DELAFIELD AVENUE

BRONX · BIN 2084300

💬 Discuss this project

1993Year Built

2Stories

A4Building Class

R1-2Zoning

3,550 sfGross Floor Area

1Units

0 Open Violations

City residence, one family · 8,636 sf lot · 0.41 FAR built · Flood zone X

Locations of Work

ArchitecturePlumbing

Floor 31p · 1 filing · 8 docs

Floor 21p · 1 filing · 8 docs

Floor 1

▾Owner History (Filing Record)

Companies and organizations named on filings. Individual owners are not shown.

Owner	Filings	Most Recent
KEY CONSTRUCTION	5	07/08/2026

▾Sales History (ACRIS)

Date	Price	Unit	Seller → Buyer	$/sf
03/22/2021	$2.6M	—	— → —	$727/sf building
07/17/2019	$975K	—	— → —	$275/sf building

▾Design Consultants (Architect / Engineer of Record)

Firm	Filings	Most Recent
HAL DORFMAN ARCHITECT	2	11/19/2020

▾Filing Representatives (Expediters)

Representative	Filings	Most Recent
SAM HOLIDAY EXPERDITORS	2	03/21/2026

▾Contractors (License-Anchored)

Firm	Trade	Roles	Most Recent
ZONE PLUMBING & HEATING C	Plumbing	6	07/08/2026

▾Special Inspection Agencies

Agency	License #	Filings	Most Recent
HAL DORFMAN ARCHITECT	474	2	11/19/2020

Building Lifecycle

All (10)Filed (2)Permit Issued (2)Signed Off (1)Violation (3)Special Inspection (2)

02/10/2021

Signed off — Alteration

Alteration to plumbing fixtures, gas boiler, gas hot water heater and gas range on floor BAS, 1, 2, and 3. There are 25 plumbing fixtures and 4 gas fixtures(Boiler, HW storage tank, dryer and range.)

X00241690-I1

12/04/2020

Permit issued — Plumbing

X00241690-I1-PL

11/23/2020

Special inspection requirement — Fire-Resistant Penetrations and Joints

Hal Dorfman

11/19/2020

Filed — Alteration

Alteration to plumbing fixtures, gas boiler, gas hot water heater and gas range on floor BAS, 1, 2, and 3. There are 25 plumbing fixtures and 4 gas fixtures(Boiler, HW storage tank, dryer and range.)

X00241690-P1

11/19/2020

Special inspection requirement — Fire-Resistant Penetrations and Joints

Hal Dorfman

11/26/2019

Permit issued — Plumbing

X00241690-I1-PL

10/07/2019

Filed — Alteration

Alteration to plumbing fixtures, gas boiler, gas hot water heater and gas range on floor BAS, 1, 2, and 3. There are 25 plumbing fixtures and 4 gas fixtures(Boiler, HW storage tank, dryer and range.)

X00241690-I1

01/25/1991

Violation issued (ECB, closed)

Construction

01/25/1991

Violation issued (ECB, closed)

Construction

11/03/1988

Violation issued (DOB, closed)

V*-DOB VIOLATION - DISMISSED

Permit / Filing Register

Source	Work Type	Status	Applicant	Issued
DOB NOW	Plumbing	Signed-off	ZONE PLUMBING & HEATING C	12/04/2020
DOB NOW	Plumbing	Signed-off	ZONE PLUMBING & HEATING C	11/26/2019
BIS	OT	ISSUED	KEY CONSTRUCTION PARTNER	05/28/2020
BIS	OT	ISSUED	KEY CONSTRUCTION PARTNER	04/17/2020
BIS	OT	ISSUED	KEY CONSTRUCTION ASSOC IN	10/08/2019

1 project · most recent 09/22/2020

General Wiring

Filed	Status	Contractor	Scope
09/22/2020	Complete	FUSION ELECTL CONTRNG LLC	General Wiring

▾Special Inspection Requirements (DOB NOW) — 2

Date	Requirement	Inspector	Role
11/23/2020	Fire-Resistant Penetrations and Joints	Hal Dorfman	special
11/19/2020	Fire-Resistant Penetrations and Joints	Hal Dorfman	special

▾Documents — 33 on file (BIS + DOB NOW)

▸Plans & Drawings2

▸DOB NOWPlans/Sketch - Plumbing2

08/26/2026X00241690-I1Request digital key ↗

08/15/2026X00241690-P1Request digital key ↗

▸Applications & Permits8

▸BISPLAN / WORK APPROVAL APPLICATION3

10/15/2020240263022Open ↗

10/02/2020240263022Open ↗

10/07/2019240263022Open ↗

▸BISWORK PERMIT APPLICATION3

05/28/2020240263022Open ↗

04/17/2020240263022Open ↗

10/07/2019240263022Open ↗

▸DOB NOWLPC Approval/Permit2

08/13/2026X00241690-P1Open ↗

08/13/2026X00241690-I1Open ↗

▸Seals & Professional Certifications7

▸DOB NOWDPL-1: Design Professional Seal & Signature2

08/26/2026X00241690-I1Open ↗

08/26/2026X00241690-P1Open ↗

▸DOB NOWSpecial Inspector Seal & Signature2

08/29/2026X00241690-P1Open ↗

08/23/2026X00241690-I1Open ↗

▸BISPROFESSIONAL CERTIFICATION STATEMENT1

10/07/2019240263022Open ↗

▸BISTECHNICAL REPORT STATEMENT OF RESPONSIBILITY1

10/07/2019240263022Open ↗

▸BISREQUIRED ITEMS CHECKLIST FOR PROFESSIONAL CERTIFICATION1

10/07/2019240263022Open ↗

▸Energy Compliance4

▸BISTECHNICAL REPORT: ENERGY CODE - RESPONSIBILITY2

12/18/2020240263022Open ↗

10/07/2019240263022Open ↗

▸BISTECHNICAL REPORT STATEMENT OF RESPONSIBILITY FOR ENERGY CODE PROGRESS INSPECTIONS1

10/07/2019240263022Open ↗

▸BISAS-BUILT ENERGY ANALYSIS1

12/18/2020240263022Open ↗

▸Inspections & Test Reports2

▸BISTECHNICAL REPORT: RESPONSIBILITY2

12/18/2020240263022Open ↗

10/07/2019240263022Open ↗

▸Approvals, Objections & Sign-offs4

▸BISLANDMARKS SIGNOFF1

01/15/2021240263022Open ↗

▸BISLANDMARKS APPROVAL1

10/07/2019240263022Open ↗

▸BISSUPERSEDING LETTER1

04/17/2020240263022Open ↗

▸BISCERTIFICATE OF OCCUPANCY/LOC: REQUEST1

01/15/2021240263022Open ↗

▸Cost, Insurance & Ownership2

▸BISCOST AFFIDAVIT2

12/18/2020240263022Open ↗

10/07/2019240263022Open ↗

▸Filing & Intake Forms3

▸BISADDITIONAL INFORMATION2

10/15/2020240263022Open ↗

10/07/2019240263022Open ↗

▸BISEFILING JOB APPLICATION COVER SHEET1

10/07/2019240263022Open ↗

▸Other Documents1

▸BISEXTERNAL FORMS - SUPPORTING DOCUMENTATION1

10/07/2019240263022Open ↗