Commercial Renovation Planning Guide

A finish-only renovation budget can omit approvals and disruption. Define the approval path, existing systems, phasing, procurement and turnover before treating pricing as final; copy the approval register and phase record for your project.

Complete due diligence before fixing the scope

Collect the lease exhibits, landlord criteria, record drawings, prior permits, surveys, hazardous-material information, equipment schedules, utility data, and available maintenance records. Confirm the permitted use and whether the proposed occupancy or layout changes code requirements.

Walk the space with representatives who understand operations, facilities, technology, security, and maintenance. Record constraints such as delivery routes, elevator reservations, loading hours, shutdown windows, noise restrictions, occupied adjacencies, and areas that must remain accessible.

Unknown conditions should be listed, not hidden inside a general contingency statement.

Map every required approval

Commercial projects may require review by the tenant, property owner, property manager, lender, insurer, design team, utility provider, health authority, fire authority, planning department, and building department. The order matters.

This is an illustrative approval register, not a universal sequence or assignment of authority. Adjust parties, dependencies and dates to the lease and local approval path. Portland’s commercial tenant-improvement guidance is one jurisdiction’s example, with property research and submittal requirements.

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Approval	Responsible party	Required information	Needed by
Landlord review, if applicable	Confirm from lease	Plans, finishes, signage	Confirm review dependency
Building permit, as required	Confirm applicant	Coordinated documents	Confirm with jurisdiction
Utility change, if applicable	Confirm utility / team roles	Loads and equipment data	Confirm before equipment release
Occupancy / opening approval	Confirm approving authority	Required inspections and closeout	Confirm opening conditions

An approval that is not on the schedule is still a schedule risk.

Define scope by system and responsibility

Organize the scope into demolition, structure, enclosure, interiors, accessibility, plumbing, mechanical, electrical, fire protection, technology, security, signage, equipment, and closeout. For each section, identify what remains, what is removed, what is modified, and who supplies and installs each item.

Reconcile lease responsibilities and owner-furnished equipment interfaces with the construction documents. Use the bid comparison guide to reconcile scope before comparing totals; for exterior work, use the building envelope guide to check control-layer transitions.

Plan work around operations

Plan barriers, access, noise, air quality and service interruptions for each occupied phase. OSHA’s construction egress rule addresses unobstructed exits; it does not approve an occupied-building phasing plan. Confirm temporary arrangements with operations and the responsible authorities.

Copy this suggested phase record; name the shutdown approver from the actual agreements, not from the job title alone.

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Phase / area	Temporary access / services	Shutdown approver	Handoff evidence
Enabling work / ___	Route, barriers, utilities: ___	Name / authority / approval: ___	Protection and access checks: ___
Active work / ___	Occupied areas, emergency access, outage window: ___	Name / authority / approval: ___	Inspection and service restoration record: ___
Reopening / ___	Permanent routes and commissioned services: ___	Release authority: ___	Required approvals, tests, unresolved work: ___

Use the construction management guide to track approval status and execution responsibilities.

Connect procurement to the design schedule

Identify long-lead items during design and confirm review, manufacturing, delivery, storage and testing dependencies. Before early release, record the dimensions, capacities and interfaces being frozen and who accepts change risk.

Conceptual dependencies from confirming approvals through procurement, construction verification and authorized opening — Illustrative dependencies, not a fixed approval order or schedule. Some reviews run in parallel; confirm release conditions for each phase.

Define turnover before the final month

The turnover plan should list inspections, testing, commissioning, training, warranties, keys, access credentials, attic stock, spare parts, operation manuals, record documents, and unresolved work. Assign the format and responsible party for each item.

A space is not operational merely because the visible construction looks complete.

Commercial renovation checklist

Confirm use, occupancy, lease, and landlord requirements
Survey existing systems and accessible conditions
Create approval and responsibility matrices
Define operational constraints and shutdown windows
Coordinate owner-furnished equipment
Track long-lead items and submittals
Price allowances and exclusions consistently
Plan phased occupancy and temporary life safety
Define commissioning and closeout deliverables

Common questions

Can you renovate a leased commercial property?

Check the lease’s alteration provisions and obtain the applicable landlord and authority approvals. The register is a planning aid; it does not establish permission to alter the space.

Do you need a permit for a renovation?

Ask the local department about the actual commercial scope and use. Portland’s linked guidance requires a permit for commercial repair, alteration or change of occupancy/use; that example does not settle another jurisdiction’s rules.

Sources and limitations

Sources reviewed October 8, 2026: Portland’s commercial tenant-improvement guidance (property research and submittals) and OSHA 1926.34 (construction egress), linked above. Tables and the dependency diagram are editorial planning examples. Editorial responsibility: Jonathan Reed. This revision clarifies the approval example and adds phase records.

Requirements vary by occupancy, jurisdiction, property and lease. Confirm the applicable approval and operational conditions with the project team and authorities.