Suffolk County (Boston) Commercial Plumbing Systems Permit Calculator
Official fee schedule logic based on 780 CMR Massachusetts State Building Code. Includes plan review fees, technology surcharges, and prerequisite contractor bond rules.
- AHJ Authority
- Boston Inspectional Services Department (ISD)
- Enforced Ordinance
- 780 CMR Massachusetts State Building Code
- Plan Check SLA
- 16 - 24 Business Days
- Surety Bond Required
- $20,000
Suffolk County (Boston) Commercial Permit Fee Estimator
Tier Valuation Formula: $1,665 base fee + $3.80 per $1,000 above $250,000 valuation.
Mandatory Contractor Prerequisites & Submittal Checklist
Suffolk County (Boston) AHJ RequirementsContractor Surety License Bond
Suffolk County (Boston) requires an active $20,000 Massachusetts CSL Contractor Bond on file prior to plan submittal.
Commercial COI Liability ($1M+)
Minimum $1.0M General Liability COI naming Suffolk County (Boston) Building Dept as Certificate Holder.
Commercial Plumbing Systems Submittal Rules in Suffolk County (Boston)
Specialized trade submittals for Commercial Plumbing Systems in Suffolk County (Boston), Massachusetts are administered by Boston Inspectional Services Department (ISD). Permits are required prior to installing, extending, replacing, or altering any mechanical, electrical, plumbing, structural, or life-safety infrastructure under 780 CMR Massachusetts State Building Code.
Intake review for Commercial Plumbing Systems requires verified trade licensing, minimum contractor general liability COI filings ($1,000,000+), and compliance with enforced regional code editions (Ninth Edition 780 CMR Building Code and Stretch Energy Code.).
Mandatory Submittal Plan Documents & PE Engineering Stamps
Plans submitted to Boston Inspectional Services Department (ISD) for Commercial Plumbing Systems must include scaled engineering drawings and specifications:
- Plumbing Isometric Schematics
- Backflow Prevention Certificate
Inspection Sequence for Commercial Plumbing Systems
Work performed under a Commercial Plumbing Systems permit in Suffolk County (Boston) requires mandatory rough-in and final field inspections. Rough-in inspections must be conducted and signed off by the municipal inspector prior to covering or concealing any piping, ductwork, structural framing, or electrical conductors. Final inspection and system testing are required for building certificate of completion issuance.
Boston Inspectional Services Department (ISD) Official Building Department
1010 Massachusetts Ave, Boston, MA 02118 | Phone: (617) 635-5300