The short answer. Yes. In Connecticut, written notification must reach the Department of Public Health before any facility demolition — regardless of how much asbestos is present, and regardless of whether you think there is any at all (RCSA §19a-332a-3). You cannot honestly certify "no asbestos" without having looked, which is why a pre-demolition survey is the practical first step on every teardown. CT DEEP goes further: if the building is structurally sound, all asbestos-containing material must be abated before demolition begins.
Why "there's no asbestos in it" is not a plan
The demolition notification requirement has no quantity threshold. Every other trigger in Connecticut's asbestos regulations is tied to how much material you are disturbing — 3 linear feet or 3 square feet for licensure, 10 linear feet or 25 square feet for notification. Demolition is the exception. The notice is required either way.
That structure exists because demolition does not disturb material selectively. An excavator does not distinguish between drywall and pipe wrap. It reduces the entire building to a mixed pile, and once it is a pile, nobody can separate the asbestos back out. The only moment when identification is possible is before the machine arrives.
Two notification clocks, and they are not the same
This is where projects get delayed, so it is worth being precise. Connecticut and the federal government both require notification, on different schedules, and you have to satisfy both.
| Connecticut (DPH) | Federal (EPA NESHAP) | |
|---|---|---|
| Lead time | At least 10 days, postmarked or hand-delivered | At least 10 working days |
| Day counting | Calendar days | Working days |
| Demolition threshold | Any facility demolition, no minimum | Any demolition, even with no asbestos present |
| Abatement thresholds | More than 10 linear ft or 25 sq ft | 260 linear ft, 160 sq ft, or 35 cubic ft |
Sources: RCSA §19a-332a-3 and the EPA NESHAP overview.
Ten calendar days and ten working days are different amounts of time. Ten working days spanning two weekends and a holiday is fourteen or fifteen calendar days. Plan against the longer clock, not the shorter one.
There is an emergency provision in the state regulation for genuine emergencies — fire, collapse, sudden unexpected events — where notice may be filed within one working day after work starts. It is narrow, and "we scheduled the excavator for Monday" does not qualify.
The residential exemption that mostly is not one
The federal NESHAP rule excludes residential buildings with four or fewer dwelling units. This is the single most misunderstood provision in the field, and two things about it need saying.
First, the exclusion does not apply when a small residential building is demolished or renovated as part of a larger commercial or public project — urban renewal, a highway widening, a shopping center assembly. Buy four houses to clear a parcel and the exemption evaporates.
Second, and more important in Connecticut: the federal exemption has no effect on state law. Connecticut's licensing threshold of 3 linear feet or 3 square feet applies to single-family homes. The state regulations define "facility" to include them. There is no homeowner carve-out. We wrote a separate post on why the homeowner exemption people cite does not exist here, because it is the belief that gets ordinary people fined.
Abate first, then demolish
CT DEEP's position on sequencing is explicit: where the facility is structurally sound, all asbestos-containing material must be removed before demolition (CT DEEP renovation and demolition requirements). The exception is a building already unsafe to enter, where a regulator-approved alternative approach may apply — and that is a conversation to have with the agency, not a decision to make on site.
The reason to care beyond compliance is cost. Abated debris is ordinary construction and demolition waste. Un-abated debris is asbestos waste, and the entire pile becomes the regulated material. Skipping the survey to save a few hundred dollars can convert your whole disposal volume into special waste.
The permit clock nobody warns you about
Municipal demolition permitting in Connecticut can add far more delay than the asbestos notice. State law allows municipalities to impose demolition-permit waiting periods of up to 180 days, and Connecticut General Statutes §29-407 requires certified-mail notice to adjoining property owners as part of the permit process.
Six months is not a typical wait, but the possibility exists and it varies town to town. Norwich, Groton, Montville, and Preston each administer this differently. Call the building department early — the asbestos survey and notification can run concurrently with permitting, and there is no reason to sequence them.
What a pre-demolition survey actually involves
A licensed inspector walks the structure and samples every suspect material: floor tile and the mastic under it, sheet flooring backing, pipe and boiler insulation, joint compound and textured paint, roofing and siding, ceiling tile, furnace and door gaskets, cement board around wood stoves, and any loose-fill insulation. Samples go to a laboratory, which determines whether each material is 1 percent or more asbestos by weight — the definition of asbestos-containing material.
What you get back is a survey report identifying each material, its location, its quantity, and its condition. That document is what your notification is built from, what your abatement scope is priced from, and what your demolition contractor relies on to certify the building is clear. Keep it. Connecticut requires abatement project records be retained for thirty years, and a future buyer's attorney will ask for them.
Order of operations
- Pre-demolition asbestos survey with laboratory results.
- Abatement scope priced from the survey; licensed contractor engaged if quantities exceed 3 linear feet or 3 square feet.
- State and federal notifications filed against the longer of the two clocks; fees paid.
- Municipal demolition permit application and adjoining-owner notice, started in parallel.
- Abatement performed, waste manifested to an authorized facility, clearance documented.
- Demolition.
If you are holding a demolition date and have not done the survey, the survey is the thing to move on today. Call (860) 407-5070 and we will tell you what your building needs before you are committed to a schedule you cannot keep.