Ontario · CSA Z768 & O.Reg. 153/04

Phase 1 Environmental Site Assessment in Oakville

Ben Engineering offers Phase 1 Environmental Site Assessment (ESA) consulting in Oakville, Ontario — conforming to the CSA Z768 Standard and Ontario Regulation O.Reg. 153/04.

Request a Quote See Phase 2 ESA

Standard: CSA Z768financing & due diligence
Regulation: O.Reg. 153/04RSC, rezoning, permits
Prepared by: Licensed P.Eng & P.Geo30+ years experience
Service area: Oakville, ONand Southwestern Ontario

What is a Phase 1 Environmental Site Assessment?

A Phase 1 ESA is a non-intrusive investigation to identify potential environmental contamination risks on a property. No soil sampling or laboratory testing is conducted at this stage.

See our Phase 2 ESA page for more. In Ontario, the CSA Standard applies to real estate due diligence and financing; O.Reg. 153/04 applies to rezoning, building permits, or filing a Record of Site Condition.

Industrial and Commercial Context in Oakville

Oakville's industrial lands are concentrated along Speers Road and the Ford Drive corridor near the Ford of Canada assembly plant, one of the area's largest employers.

Multi-Residential Development in Oakville

Downtown Oakville and the Kerr Village and Uptown Core areas carry the highest concentration of mid-rise condominium buildings, supplemented by newer development near the Oakville GO corridor. Properties near these commercial and industrial corridors are the ones most likely to require environmental due diligence before financing, redevelopment, or a change of use.

Why This Matters for Properties in Oakville

The redevelopment pressure on Oakville's older commercial and industrial land — a pattern seen across much of Ontario as municipalities intensify around transit and existing infrastructure — means environmental due diligence is an increasingly routine step in local development approvals.

How a Phase 1 ESA Is Actually Carried Out

The final Phase 1 report presents the assessor's professional opinion on whether Recognized Environmental Conditions exist, and if so, provides a clear recommendation on whether further investigation — a Phase 2 ESA — is warranted before the transaction, financing, or approval proceeds.

The historical records review typically draws on fire insurance plans, aerial photographs spanning several decades, and prior environmental reports where available, cross-referenced against the property's chain of title to identify past uses that might not be apparent from a site visit alone.

Environmental Site Assessment — Overview

Nearby areas we serve

Also servicing the surrounding region

Phase 1 ESAs by area

We work across Ontario, generally within 500 km of our Vaughan head office. Each area has its own page.