Designated Substance and Hazardous Materials Survey in Ontario
Cost band, turnaround and the statutory backdrop under Environmental Protection Act (O. Reg. 153/04 (Records of Site Condition)).
01The numbers
Cost band
$2,800–$13,000
Flagged 50,000 sf reference asset
Midpoint
$5,200
Modelled, not quoted
Turnaround
14 days
Engagement to draft
Sequence
Stage one
Runs in parallel
A Designated Substance and Hazardous Materials Survey in Ontario covers the following. Bulk sampling and laboratory analysis for asbestos-containing materials, lead, mercury, silica and other designated substances, producing the inventory that must be handed to any contractor before demolition or renovation.
On any building constructed before the mid-1990s, and legally before any renovation or demolition work is tendered. In Ontario the statutory backdrop is the Environmental Protection Act (O. Reg. 153/04 (Records of Site Condition)), administered by Ministry of the Environment, Conservation and Parks.
Envirolor models this report at $2,800–$13,000 in Ontario on a flagged 50,000 sf industrial asset, with a 14-day turnaround. The regional cost index of 1.00 and a 0-day scheduling penalty on intrusive work are both applied. Cost scales with floor area at an elasticity of 0.45, so a building twice the size is not twice the fee.
Where deals break on this report: Skipped at acquisition, then discovered at first tenant fit-out — when abatement is on the critical path of a signed lease commencement date.
This is a stage-one report, so it runs in parallel with the other opening scopes rather than extending the calendar. Engaging it on day zero alongside the Phase I is free schedule.
Envirolor facts
- Designated Substance and Hazardous Materials Survey is a tier-2 report in the Envirolor catalogue.
- Ontario applies a cost index of 1.00 and a 0-day scheduling penalty to intrusive work.
- Filing route in Ontario: Record of Site Condition (RSC) filed on the Environmental Site Registry.
How these figures were produced
- Modelled — Derived arithmetically from observed inputs using the published method; not a market quote.
- Baseline seed — A documented starting estimate awaiting first observation. Treat as an order-of-magnitude figure only.
02Scope of work
What the consultant actually does
Bulk sampling and laboratory analysis for asbestos-containing materials, lead, mercury, silica and other designated substances, producing the inventory that must be handed to any contractor before demolition or renovation.
Where it goes wrong: Skipped at acquisition, then discovered at first tenant fit-out — when abatement is on the critical path of a signed lease commencement date.
03Scope your own deal
Price this into a Ontario scope
Enter the asset and the site history. The estimator decides which reports a lender and the Ontario regulator will actually require, prices each one, and sequences them into a calendar you can hold against your condition period.
Modelled cost
$11,000–$43,500
Midpoint $19,900
Critical path
23 days
Engagement to reviewed drafts
Risk screen
Low
No flag driving sampling
Condition period
22 days spare
Scope fits
| Report | Status | Cost band | Days | Lands |
|---|---|---|---|---|
| Roof / envelopeA 41-year-old roof is usually the largest single line in the reserve table; a dedicated review turns a range into a number. | Recommended | $2,500–$11,000 | 12 | Day 12 |
| DSS / hazmatA 1985 building is pre-ban construction: the survey is legally required before any renovation or demolition is tendered, and the abatement number belongs in the purchase price. | Required | $2,800–$13,000 | 14 | Day 14 |
| Phase I ESAEvery lender on a commercial file requires a Phase I addressed to it with reliance, dated within six months of funding. | Required | $2,200–$5,500 | 15 | Day 15 |
| BCA / PCAThe lender's reserve requirement is set off the BCA's capital table, so it is a funding condition, not a nice-to-have. | Required | $3,500–$14,000 | 18 | Day 18 |
Out of scope, and why
- Phase II ESA — No area of potential environmental concern was flagged, so the Phase I should close without sampling. If it does not, add roughly the Phase II band to both cost and calendar.
- Geotech — An existing building with a known grading history rarely needs a geotech at acquisition; add one before any addition.
- Elevator — No elevating devices in the asset.
Take this with you
Diligence scope memo
A scope of work you can send to a consultant, attach to a lender package, or hold against a condition-period calendar. Print to PDF — nothing leaves your browser.
- Prepared
- 2026-10-09 by Envirolor
- Jurisdiction
- Ontario — O. Reg. 153/04 (Records of Site Condition)
- Asset
- 50,000 sf industrial, built 1985
- Site area
- 87,120 sf
- Risk screen
- Low (score 1)
- Condition period
- 45 calendar days
- Modelled cost
- $11,000–$43,500
- Critical path
- 23 calendar days
Scope of work
1. Roof and Building Envelope Review — Recommended
Roof-level inspection with core cuts where warranted, moisture scanning, flashing and parapet review, and an envelope assessment covering cladding, sealants and glazing, with remaining service life and replacement cost.
$2,500–$11,000 · engage day 0 · draft day 12
2. Designated Substance and Hazardous Materials Survey — Required
Bulk sampling and laboratory analysis for asbestos-containing materials, lead, mercury, silica and other designated substances, producing the inventory that must be handed to any contractor before demolition or renovation.
$2,800–$13,000 · engage day 0 · draft day 14
3. Phase I Environmental Site Assessment — Required
Records review (fire insurance plans, aerial photography, title, environmental registries), a site reconnaissance visit, and interviews with the owner, occupants and the municipality. The deliverable identifies areas of potential environmental concern (APECs) and states whether intrusive investigation is warranted.
$2,200–$5,500 · engage day 0 · draft day 15
4. Building Condition Assessment — Required
A walk-through of structure, envelope, roofing, mechanical, electrical, vertical transportation, life safety and site works, followed by an immediate-repair list and a capital reserve table projecting replacement costs over the study period.
$3,500–$14,000 · engage day 0 · draft day 18
Verdict
This scope runs 3 required and 1 discretionary report, for a modelled $11,000–$43,500 and a 23-day critical path from engagement to a reviewed set of drafts.
Against the 45-day condition period entered, that leaves 22 days of slack — enough to absorb one lab delay, not two.
No area of potential environmental concern was flagged, so the base case is a Phase I that closes clean. If it does not, the Phase II adds roughly 30 days and the sampling band to this answer.
Modelled figures produced by the Envirolor scoping method from published cost bands and the Environmental Protection Act (O. Reg. 153/04 (Records of Site Condition)). Not a quotation and not professional advice. Confirm scope and fees with a qualified consultant before relying on this memo.
04Questions
How much does a DSS / hazmat cost in Ontario?
$2,800–$13,000 on a flagged 50,000 sf industrial asset, modelled by Envirolor from published cost bands with a 1.00 regional index applied. Smaller assets sit below the band; the fee does not scale one-for-one with area.
How long does it take in Ontario?
14 calendar days from engagement to draft, including the 0-day Ontario scheduling penalty applied at half weight to non-intrusive work.
What forces this report in Ontario?
On any building constructed before the mid-1990s, and legally before any renovation or demolition work is tendered.
05Sources
Sources
- [1] Environmental Protection Act — O. Reg. 153/04 (Records of Site Condition) — Administered by Ministry of the Environment, Conservation and Parks.
- [2] CSA Z768-01, Phase I Environmental Site Assessment — Canadian report standard.
Envirolor Data Desk method · Last updated 2026-08-15 · Maintained by Envirolor Data Desk
Scope: Designated Substance and Hazardous Materials Survey in Ontario
Inputs: Envirolor modelled cost bands; Environmental Protection Act
Next scheduled review: 2026-11-15
Not advice — Envirolor is a data publisher. We do not perform, certify, or supervise professional work, and nothing here is a quote, an engagement, or professional advice. Figures are indicative benchmarks for comparison and must be confirmed with a qualified professional before you rely on them. About Envirolor