Rock & Hammer Constructio — NYC General Contractor: DOB Permits, Filings & Buildings

Project	Address	Type	Status	Filed	Latest permit	On the project	Description
B01343215 ↗	595 MAC DONOUGH STREET BROOKLYN	Alteration	Signed-off	01/13/2026	02/26/2026	Design Gauge Studio	Three new heat pump systems serving the cellar, basement, 1st and 2nd floor of a 2 family brownstone.
B01294109 ↗	96 SCHERMERHORN STREET BROOKLYN	Alteration	Signed-off	11/18/2025	02/06/2026	Design JAN+AGNES DIAMOND, ARCHITECTS Filer CLARKE CONSTRUCTION CONSULTANTS	RENOVATION IN APT 11B FILED IN CONJUNCTION WITH PL. NO CHANGE TO USE, OCCUPANCY OR EGRESS.
B00909625 ↗	322 45 STREET BROOKLYN	Alteration CO	Permit Issued	09/01/2023	10/09/2025	Design CORTNEY WALLESTON ARCHITECT, PC Filer CLARKE CONSTRUCTION CONSULTANTS	CONVERTING AN EXISTING 2 FAMILY INTO A ONE FAMILY HOUSE. INTERIOR RENOVATION TO ALL FLOORS.
B00940184 ↗	322 45 STREET BROOKLYN	Alteration	Signed-off	11/16/2023	10/09/2025	Design A DEGREE OF FREEDOM STRUCTURAL ENGI Filer CLARKE CONSTRUCTION CONSULTANTS	This work consists of a single-story horizontal addition at rear of existing building.
B01266273 ↗	245 WARWICK STREET BROOKLYN	Alteration	Signed-off	08/14/2025	10/09/2025	Design CLIP ARCHITECTS Filer MODERN BUILDING CONSULTANT	File to address DOB violation #39104870N, #39104869X with pluming work @ Cellar & Attic as per plans. Restore back to legal condition. No ch…
B01047499 ↗	51 7 AVENUE BROOKLYN	Alteration	Signed-off	05/29/2024	11/14/2024	Design MSM ENGINEERING SERVICES, PLLC Filer MODERN BUILDING CONSULTANT	Propose plumbing work at partial 1st floor existing residential building as per plans. No change in use, egress, or occupancy.

Counts cover all 17 projects (13 DOB NOW + 4 legacy BIS). Dated by first filing; BIS projects by first permit issuance.

Who this entity's projects were filed with. Top 25 per group by shared jobs.

Name	Projects together	Most recent
MSM ENGINEERING SERVICES, PLLC	2	11/11/2024
A DEGREE OF FREEDOM STRUCTURAL ENGI	1	06/03/2025
CLIP ARCHITECTS	1	08/14/2025
CORTNEY WALLESTON ARCHITECT, PC	1	10/16/2025
Downtown Engineers	1	06/03/2025
GREAT WALL CONSULTANT PROFESSIONAL	1	08/06/2020
Gauge Studio	1	07/20/2026
HALO ARCHITECTURE PLLC	1	12/09/2021
JAN+AGNES DIAMOND, ARCHITECTS	1	11/18/2025
NEW YORK ENGINEERS LLC	1	06/03/2025
STREET CONSULTING ENGINEERING, P. .	1	12/01/2021
SU11 ARCHITECTURE AND DESIGN PLLC	1	02/24/2023

Who this entity's projects were filed with. Top 25 per group by shared jobs.

Name	Projects together	Most recent
PREMIER FLOW PLBG AND HTG	3	08/14/2025
MILLENNIUM HVAC NY INC	1	06/03/2025

Who this entity's projects were filed with. Top 25 per group by shared jobs.

Name	Projects together	Most recent
SANDBERG MANAGEMENT	1	02/24/2023

Who this entity's projects were filed with. Top 25 per group by shared jobs.

Name	Projects together	Most recent
MODERN BUILDING CONSULTANT	6	08/14/2025
CLARKE CONSTRUCTION CONSULTANTS	3	11/18/2025

13 DOB NOW projects + 4 legacy BIS 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 17Open permit 1Signed off 12Other status 4

Any typeAlteration 12Alteration CO 1

17 projects

Project	Address	Type	Status	Filed	Latest permit	On the project	Description
B01343215 ↗	595 MAC DONOUGH STREET BROOKLYN	Alteration	Signed-off	01/13/2026	02/26/2026	Design Gauge Studio	Three new heat pump systems serving the cellar, basement, 1st and 2nd floor of a 2 family brownstone.
B01294109 ↗	96 SCHERMERHORN STREET BROOKLYN	Alteration	Signed-off	11/18/2025	02/06/2026	Design JAN+AGNES DIAMOND, ARCHITECTS Filer CLARKE CONSTRUCTION CONSULTANTS	RENOVATION IN APT 11B FILED IN CONJUNCTION WITH PL. NO CHANGE TO USE, OCCUPANCY OR EGRESS.
B00909625 ↗	322 45 STREET BROOKLYN	Alteration CO	Permit Issued	09/01/2023	10/09/2025	Design CORTNEY WALLESTON ARCHITECT, PC Filer CLARKE CONSTRUCTION CONSULTANTS	CONVERTING AN EXISTING 2 FAMILY INTO A ONE FAMILY HOUSE. INTERIOR RENOVATION TO ALL FLOORS.
B00940184 ↗	322 45 STREET BROOKLYN	Alteration	Signed-off	11/16/2023	10/09/2025	Design A DEGREE OF FREEDOM STRUCTURAL ENGI Filer CLARKE CONSTRUCTION CONSULTANTS	This work consists of a single-story horizontal addition at rear of existing building.
B01266273 ↗	245 WARWICK STREET BROOKLYN	Alteration	Signed-off	08/14/2025	10/09/2025	Design CLIP ARCHITECTS Filer MODERN BUILDING CONSULTANT	File to address DOB violation #39104870N, #39104869X with pluming work @ Cellar & Attic as per plans. Restore back to legal condition. No ch…
B01047499 ↗	51 7 AVENUE BROOKLYN	Alteration	Signed-off	05/29/2024	11/14/2024	Design MSM ENGINEERING SERVICES, PLLC Filer MODERN BUILDING CONSULTANT	Propose plumbing work at partial 1st floor existing residential building as per plans. No change in use, egress, or occupancy.
B00984981 ↗	151 GRAND STREET BROOKLYN	Alteration	Signed-off	01/19/2024	02/09/2024	Design MSM ENGINEERING SERVICES, PLLC Filer MODERN BUILDING CONSULTANT	Propose interior renovation @ partial 3rd floor Apt#6 with partition work and floor finish as per plan. No change in use, egress, or occupan…
B00862673 ↗	448 41 STREET BROOKLYN	Alteration	Signed-off	05/02/2023	05/05/2023	—	Propose minor interior renovation at 1st floor of existing residential building floor finish as per plan. No change in use, egress and occup…
B00831728 ↗	28 MONROE PLACE BROOKLYN	Alteration	Signed-off	02/24/2023	03/03/2023	Design SU11 ARCHITECTURE AND DESIGN PLLC Owner SANDBERG MANAGEMENT	RENOVATE KITCHEN, GENERAL COSMETIC RENOVATION
B00678407 ↗	6833 BLISS TERRACE BROOKLYN	Alteration	Signed-off	03/21/2022	04/07/2022	Design MSM ENGINEERING SERVICES, PLLC Filer MODERN BUILDING CONSULTANT	PROPOSE INTERIOR RENOVATION WITH MINOR PARTITION AND FLOOR FINISH @ 2ND FL AS PER PLANS. NO CHANGE IN USE, EGRESS, OR OCCUPANCY.
M00643484 ↗	408 WEST 25 STREET MANHATTAN	Alteration	Signed-off	12/09/2021	12/15/2021	Design HALO ARCHITECTURE PLLC Filer MODERN BUILDING CONSULTANT	Proposed interior renovation on partial 1st floor, unit 1FW with minor partition work and finish work as per plan. No change in use, egress,…
S00528157 ↗	740 LAMONT AVENUE STATEN ISLAND	Alteration	Signed-off	05/28/2021	06/03/2021	Design STREET CONSULTING ENGINEERING, P. . Filer MODERN BUILDING CONSULTANT	Propose renovation at cellar of existing 2 family building. Work finish as per plan. No change in use, egress, or occupancy.
540181765BIS	241 NELSON AVENUE STATEN ISLAND	—	ISSUED	08/19/2020	04/27/2021	—	OT
540183941BIS	241 NELSON AVENUE STATEN ISLAND	—	ISSUED	01/08/2021	04/27/2021	—	OT
S00379275 ↗	241 NELSON AVENUE STATEN ISLAND	Alteration	Signed-off	08/06/2020	04/26/2021	Design GREAT WALL CONSULTANT PROFESSIONAL	INSTALL TEMPORARY CONSTRUCTION FENCE AS PER PLAN. NO CHANGE IN USE, EGRESS OR OCCUPANCY.
322017036BIS	65 MIDDAGH STREET BROOKLYN	—	ISSUED	06/09/2020	01/12/2021	—	OT
340681596BIS	74 1 PLACE BROOKLYN	—	ISSUED	07/30/2019	06/23/2020	—	OT

Click a row for this entity's own projects, plans and documents at that building.

Building	Filings	Most Recent
408 WEST 25 STREET ↗	1	07/08/2026

6833 BLISS TERRACE ↗	1	07/08/2026

51 7 AVENUE ↗	1	07/08/2026

241 NELSON AVENUE ↗	4	07/08/2026

448 41 STREET ↗	1	07/08/2026

740 LAMONT AVENUE ↗	1	07/08/2026

322 45 STREET ↗	6	07/08/2026

595 MAC DONOUGH STREET ↗	2	04/09/2026

96 SCHERMERHORN STREET ↗	1	04/09/2026

151 GRAND STREET ↗	3	03/21/2026

245 WARWICK STREET ↗	3	03/21/2026

28 MONROE PLACE ↗	3	03/21/2026

▾Documents — 298 on file (BIS + DOB NOW)

▸Plans & Drawings28

▸DOB NOWPlans/Sketch27

09/03/2026M00643484-I1 · 408 WEST 25 STREETRequest digital key ↗

08/30/2026B00678407-I1 · 6833 BLISS TERRACERequest digital key ↗

08/27/2026B00831728-I1 · 28 MONROE PLACERequest digital key ↗

Showing 3 of 27 on file for this type

▸DOB NOWPlans/Sketch - Construction Fence1

08/26/2026S00379275-I1 · 241 NELSON AVENUERequest digital key ↗

▸Applications & Permits25

▸BISPLAN / WORK APPROVAL APPLICATION11

02/10/2023540181765 · 241 NELSON AVENUEOpen ↗

02/09/2023540181765 · 241 NELSON AVENUEOpen ↗

10/17/2022540181765 · 241 NELSON AVENUEOpen ↗

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▸BISWORK PERMIT APPLICATION8

01/08/2021540183941 · 241 NELSON AVENUEOpen ↗

08/28/2020322017036 · 65 MIDDAGH STREETOpen ↗

06/23/2020340681596 · 74 1 PLACEOpen ↗

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▸BISPLAN - WORK & PERMITS - SUPPPORTING DOCUMENTATION3

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▸DOB NOWLPC Approval/Permit3

08/13/2026B01047499-S1 · 51 7 AVENUEOpen ↗

08/13/2026B01047499-I1 · 51 7 AVENUEOpen ↗

08/13/2026B00831728-I1 · 28 MONROE PLACEOpen ↗

▸Zoning, Tax Lot & Property Records7

▸DOB NOWZD1: DOB Zoning Diagram3

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▸DOB NOWRestrictive Declaration/Easement 12

08/25/2026S00528157-I1 · 740 LAMONT AVENUEOpen ↗

08/13/2026S00528157-P1 · 740 LAMONT AVENUEOpen ↗

▸BISZONING EXHIBIT III:DESC. & OWNRSHP.STMNT1

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▸BISZONING DIAGRAM1

11/27/2020540183941 · 241 NELSON AVENUEOpen ↗

▸Seals & Professional Certifications126

▸DOB NOWProgress Inspector Seal & Signature64

09/01/2026B00940184-P6 · 322 45 STREETOpen ↗

Showing 3 of 64 on file for this type

▸DOB NOWDPL-1: Design Professional Seal & Signature27

08/27/2026B00862673-I1 · 448 41 STREETOpen ↗

08/26/2026B00984981-I1 · 151 GRAND STREETOpen ↗

08/26/2026S00379275-I1 · 241 NELSON AVENUEOpen ↗

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▸DOB NOWSpecial Inspector Seal & Signature26

09/01/2026B00940184-P6 · 322 45 STREETOpen ↗

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▸BISTECHNICAL REPORT STATEMENT OF RESPONSIBILITY3

06/14/2019340681596 · 74 1 PLACEOpen ↗

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▸BISREQUIRED ITEMS CHECKLIST FOR PROFESSIONAL CERTIFICATION2

06/14/2019340681596 · 74 1 PLACEOpen ↗

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▸BISPROFESSIONAL CERTIFICATION STATEMENT2

06/14/2019340681596 · 74 1 PLACEOpen ↗

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▸BISAPPLICANT OWNER SIGNATURE1

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▸BISTECHNICAL REPORT: RESPONSIBILITY/CERTIFICATION1

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▸Safety & Tenant Protection8

▸DOB NOWStreet Tree Checklist3

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▸BISTENANT PROTECTION PLAN AND NOTES2

07/28/2020322017036 · 65 MIDDAGH STREETOpen ↗

06/14/2019340681596 · 74 1 PLACEOpen ↗

▸BISSTREET TREE CHECKLIST1

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▸DOB NOWStreet Trees Site Plan1

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▸DOB NOWStreet Tree Sign Off1

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▸Environmental & Asbestos32

▸DOB NOWDEP ACP-5: Asbestos Assessment Report26

08/27/2026B00862673-I1 · 448 41 STREETOpen ↗

08/26/2026B00984981-I1 · 151 GRAND STREETOpen ↗

08/25/2026S00528157-I1 · 740 LAMONT AVENUEOpen ↗

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▸BISASBESTOS: CERTIFICATION (DEP ACP5)5

12/14/2020540183941 · 241 NELSON AVENUEOpen ↗

06/14/2019340681596 · 74 1 PLACEOpen ↗

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▸DOB NOWOER: Notice to Proceed1

08/13/2026B00984981-I1 · 151 GRAND STREETOpen ↗

▸Energy Compliance16

▸BISTECHNICAL REPORT: ENERGY CODE - RESPONSIBILITY8

11/17/2023540181765 · 241 NELSON AVENUEOpen ↗

11/14/2023540181765 · 241 NELSON AVENUEOpen ↗

11/10/2023540181765 · 241 NELSON AVENUEOpen ↗

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▸BISAS-BUILT ENERGY ANALYSIS4

11/10/2023540181765 · 241 NELSON AVENUEOpen ↗

10/21/2022540181765 · 241 NELSON AVENUEOpen ↗

08/02/2021540183941 · 241 NELSON AVENUEOpen ↗

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▸BISTECHNICAL REPORT STATEMENT OF RESPONSIBILITY FOR ENERGY CODE PROGRESS INSPECTIONS3

06/14/2019340681596 · 74 1 PLACEOpen ↗

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▸BISTECHNICAL REPORT: ENERGY CODE PROGRESS INSPS1

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▸Inspections & Test Reports13

▸BISTECHNICAL REPORT: RESPONSIBILITY12

11/17/2023540181765 · 241 NELSON AVENUEOpen ↗

11/14/2023540181765 · 241 NELSON AVENUEOpen ↗

11/10/2023540181765 · 241 NELSON AVENUEOpen ↗

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▸DOB NOWGeotechnical Report (BC 1803.6)1

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▸Approvals, Objections & Sign-offs6

▸BISCERTIFICATE OF OCCUPANCY/LOC: REQUEST3

11/20/2023540181765 · 241 NELSON AVENUEOpen ↗

08/03/2021540183941 · 241 NELSON AVENUEOpen ↗

03/25/2021322017036 · 65 MIDDAGH STREETOpen ↗

▸BISLANDMARKS SIGNOFF1

03/25/2021322017036 · 65 MIDDAGH STREETOpen ↗

▸BISLANDMARKS APPROVAL1

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▸BISSUPERSEDING LETTER1

08/28/2020322017036 · 65 MIDDAGH STREETOpen ↗

▸Cost, Insurance & Ownership7

▸BISCOST AFFIDAVIT7

11/10/2023540181765 · 241 NELSON AVENUEOpen ↗

08/02/2021540183941 · 241 NELSON AVENUEOpen ↗

03/25/2021322017036 · 65 MIDDAGH STREETOpen ↗

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▸Filing & Intake Forms14

▸BISADDITIONAL INFORMATION10

06/04/2021540183941 · 241 NELSON AVENUEOpen ↗

02/08/2021322017036 · 65 MIDDAGH STREETOpen ↗

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▸BISEFILING JOB APPLICATION COVER SHEET3

06/14/2019340681596 · 74 1 PLACEOpen ↗

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▸BISEFILING COVER SHEET1

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▸Other Documents16

▸DOB NOWPlot Diagram4

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▸DOB NOWSite Survey: Initial4

09/01/2026B00909625-I1 · 322 45 STREETOpen ↗

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▸DOB NOWProperty Ownership Certification3

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▸DOB NOWLocal Law 92/94 of 2019 Sustainable Roof Zone3

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▸BISSUSTAINABLE ROOF ZONE FORM1

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▸DOB NOWFinal Survey1

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