The actual demolition of a Sydney house takes 1–3 days. The whole process — from signing a quote to walking onto a cleared block — typically takes 6–10 weeks. The gap is almost entirely paperwork and utility disconnections. Here's a realistic timeline for a standard residential demolition in Sydney.
Stage 1: Quote and contract (week 1)
Most reputable contractors will quote within 24–48 hours of a site visit. Once you accept, you'll sign a contract that covers scope, exclusions, price and payment terms. Pay attention to the exclusions list — that's where the surprises live.
Stage 2: Approvals (weeks 1–4)
For a typical knock-down rebuild in Sydney, your private certifier processes a Complying Development Certificate (CDC) in 7–10 working days. Heritage homes, properties with significant trees, or sites in a heritage conservation area need a full DA — that's 6–12 weeks. Read our council-by-council breakdown of Inner West demolition permits for the specific lead times.
Stage 3: Utility disconnections (weeks 1–6)
The disconnections are the longest lead-time item. Typical Sydney lead times:
- Ausgrid electricity disconnect: 4–6 weeks
- Jemena gas abolishment: 4–6 weeks
- Sydney Water disconnection: 2–3 weeks
- Telstra/NBN: 2–4 weeks
These run in parallel with approvals, but they're the critical path on most jobs.
Stage 4: Asbestos clearance (weeks 4–6)
If your home contains asbestos (and most Sydney homes built before 1990 do), a licensed asbestos removalist will need 2–4 days on site, plus a clearance certificate before structural demolition can start. See our asbestos compliance guide for NSW owners for the full process.
Stage 5: Structural demolition (week 6 or 7 — 1–3 days)
The fun bit. A single-storey weatherboard or brick home is demolished in a single day. A double-storey takes 2 days. Slab and footing removal adds another half-day. Most of the work is loading trucks — a typical home generates 8–12 truck loads of waste.
Stage 6: Final clean and handover (week 7)
Site is raked, dust suppressed, fencing reinstated. Photos are taken for your records. You can now hand over to your excavation contractor or builder.
What slows it down?
- Heritage listing or conservation area
- Friable asbestos requiring full enclosure
- Disputed boundary or party-wall issues
- Holiday periods (December disconnections can take 8+ weeks)
- Tree removal requiring separate approval
What speeds it up?
- Starting disconnection paperwork before signing the demo contract
- Using a CDC pathway with a private certifier instead of DA
- Booking asbestos removal as soon as the certificate is issued
- Choosing a local contractor — we're often on site within 30 minutes from our Homebush base
The bottom line
Plan on 6–10 weeks from signed quote to cleared block. Want a fixed timeline for your project? Send us your address and we'll come back with a realistic schedule alongside the quote.
Frequently asked questions
How long does the actual demolition take?+
The on-site demolition is 1–3 days for a typical Sydney house. The full project from signed contract to cleared block runs 6–10 weeks once approvals and disconnections are included.
What takes the longest?+
Utility disconnections — Ausgrid and Jemena typically take 4–6 weeks and sit on the critical path of nearly every job.
Do I need a DA or just a CDC?+
Most knock-down rebuilds in Sydney go through CDC (7–10 days). Heritage homes, conservation areas or properties with significant trees usually need a full DA (6–12 weeks).
Can demolition start before asbestos clearance?+
No. Structural demolition cannot begin until a licensed removalist has cleared the site and issued a clearance certificate.