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One story - permanent living quarter
21 PIEDMONT AVENUE
STATEN ISLAND · Grasmere-Arrochar-South Beach-Dongan Hills · BIN 5044903
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1960Year Built
1Stories
A2Building Class
R3-2Zoning
1,269 sfGross Floor Area
1Units
FDNY Report ↗
One story - permanent living quarter · 5,520 sf lot · 0.23 FAR built
Locations of Work
Electrical
Permit Issued — active, not yet Signed-off
RoofUnder Construction1 filing · 5 docs
▾Design Consultants (Architect / Engineer of Record)
FirmFilingsMost Recent
GREEN RIVER ENVIRONMENTAL ENGINEERI108/24/2026
▾Contractors (License-Anchored)
FirmTradeRolesMost Recent
NYSS LLCGeneral Contractor108/27/2026
▾Special Inspection Agencies
AgencyLicense #FilingsMost Recent
GREEN RIVER ENVIRONMENTAL7841108/24/2026
Building Lifecycle
All (7)Filed (1)Permit Issued (1)Special Inspection (5)
08/26/2026
Permit issued — Solar
S01450610-I1-SL
08/24/2026
Filed — Alteration
INSTALLATION OF PHOTOVOLTAIC SOLAR ARRAY ON EXISTING ROOF SYSTEM AS PER PLANS.
S01450610-I1
08/24/2026
Special inspection requirement — Fire-Resistant Penetrations and Joints
ROBERT MASONE
08/24/2026
Special inspection requirement — Structural Stability – Alterations of existing buildings
ROBERT MASONE
08/24/2026
Special inspection requirement — Energy Code Compliance Inspections
ROBERT MASONE
08/24/2026
Special inspection requirement — Final
ROBERT MASONE
08/24/2026
Special inspection requirement — Air barrier - visual inspection
ROBERT MASONE
Permit / Filing Register
SourceWork TypeStatusApplicantIssued
DOB NOWSolarPermit IssuedNYSS LLC08/26/2026
BISPLISSUEDEARLY PLBG & HTG INC10/24/2002
1 project · most recent 08/24/2026
FiledStatusContractorScope
08/24/2026Permit IssuedNY SOLAR ELECTRICAL LLC—
▾Special Inspection Requirements (DOB NOW) — 5
DateRequirementInspectorRole
08/24/2026Fire-Resistant Penetrations and JointsROBERT MASONEspecial
08/24/2026Structural Stability – Alterations of existing buildingsROBERT MASONEspecial
08/24/2026Energy Code Compliance InspectionsROBERT MASONEprogress
08/24/2026FinalROBERT MASONEprogress
08/24/2026Air barrier - visual inspectionROBERT MASONEenergy_progress
▾Documents — 5 on file (BIS + DOB NOW)
▸Plans & Drawings1
▸DOB NOWPlans/Sketch1
08/25/2026S01450610-I1Request digital key ↗
▸Seals & Professional Certifications4
▸DOB NOWProgress Inspector Seal & Signature2
09/23/2026S01450610-I1Open ↗
09/23/2026S01450610-I1Open ↗
▸DOB NOWDPL-1: Design Professional Seal & Signature1
08/25/2026S01450610-I1Open ↗
▸DOB NOWSpecial Inspector Seal & Signature1
09/23/2026S01450610-I1Open ↗