
Building & Structural Demolition Sydney
Partial and structural works with engineered propping and control.
Partial and structural works with engineered propping and control.
Structural demolition is precision work — removing part of a building while keeping the rest standing, safe and sound. H&R carries out partial demolitions, upper-storey removals, load-bearing wall removals and major structural alterations across Sydney, working to engineered drawings and temporary propping designs.
It is the kind of job where experience matters. We plan the sequence carefully, prop and support what stays, and protect adjoining structures and neighbouring properties throughout. Every project runs to AS 2601 with a written demolition plan and safe work method statement.
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Structural Demolition Sydney: Quick Answers
What is building demolition?
Building demolition is the planned removal of a whole building, or part of one, such as a house, block of units or commercial building. It is carried out in a set sequence under a written demolition plan in line with AS 2601, using mechanical, high-reach or hand methods to suit the building and its neighbours.
What is partial demolition?
Partial demolition removes part of a building while the rest stays standing, such as a rear addition, an upper storey, a load-bearing wall or a section of a commercial building. The retained structure is propped where the engineer requires, separated with clean saw-cuts and protected from the weather.
When is a demolition licence needed in NSW?
SafeWork NSW requires a restricted demolition licence for load-bearing structures 6 to 15 metres high, or where load-shifting machinery works on a suspended floor. An unrestricted licence is needed for taller structures, pre- or post-tensioned elements, floor propping and explosives. SafeWork must be notified five days before this work starts.
| Methods | Mechanical, high-reach, hand and selective demolition, saw cutting and core drilling |
|---|---|
| Licensing | Restricted licence for 6–15 m load-bearing structures; unrestricted above 15 m |
| Standards | AS 2601 demolition plan, engineer’s methodology, propping design, SWMS |
| Typical projects | Rear additions, upper storeys, load-bearing walls, unit blocks, commercial buildings |
| Neighbour protection | Dilapidation reports where required, dust suppression, controlled sequencing |
| Approvals | CDC or DA; heritage items and conservation areas usually need a DA |
What’s Included

Get A Fixed Quote For Structural Demolition
Tell us about the job and we’ll book a free site inspection, then come back with a straight, itemised price — usually within one business day.
Controlled, sequenced removal
Whether you are opening up a floor plan, removing a second storey for a rebuild, or taking out a section of a commercial building, the order of works is everything. We follow the structural engineer’s methodology, install temporary propping and bracing where loads need to be carried, and dismantle in a controlled sequence rather than simply knocking through.
This protects the parts of the building that remain, keeps the site safe for everyone on it, and avoids the costly damage that comes from cutting corners on a structural job.
Working alongside your engineer and builder
Structural demolition rarely happens in isolation — it is usually one stage of a larger renovation or development. We coordinate closely with your engineer, builder and project manager so our works dovetail with the program, and hand over a clean, stable structure ready for the next stage.
From heritage terraces in the inner city to commercial fit-downs, we bring the right machinery — including compact and high-reach plant — plus the dust, noise and vibration controls a sensitive site demands.
Building Demolition in Sydney: Full and Partial
Building demolition covers everything from a single house to multi-storey blocks of units, commercial buildings and mixed-use sites. Some jobs take the whole building down to ground level. Others remove only part of it, such as a rear addition, an upper storey or a section of a commercial building, while the rest stays standing and in use. Both need careful planning. The method, sequence and controls are set out in a written demolition plan prepared in line with AS 2601, and load-bearing structures 6 metres or taller are demolished under a SafeWork NSW demolition licence, with five days’ notice given to SafeWork.
Demolition methods we use
| Method | When it is used |
|---|---|
| Mechanical demolition | Most houses and low-rise buildings, using excavators fitted with buckets, grabs, pulverisers or hammers |
| High-reach demolition | Taller structures where the building needs to come down from the top, away from the base |
| Hand and selective demolition | Partial works, heritage fabric and areas too tight or sensitive for machines |
| Saw cutting and core drilling | Openings in slabs and walls, and separating the part being removed from the part that stays |
Partial Demolition Sydney
Partial demolition is common in Sydney, where heritage controls and tight blocks often mean the front of a house or a party wall must stay. Typical partial demolition jobs include:
- Removing rear additions and lean-tos ahead of an extension
- Removing load-bearing walls to open up a floor plan, to an engineer’s design
- Taking off an upper storey or roof structure for a rebuild
- Demolishing part of a terrace or semi while protecting the shared wall
- Removing sections of commercial and industrial buildings while the rest stays in use
On partial demolition, the parts of the building that stay matter as much as the parts that go. We install temporary propping where the engineer requires it, saw-cut clean separation lines, weatherproof the retained structure and protect adjoining properties. Inner-city work is common for us; see our Inner West and Eastern Suburbs pages.
Housing Demolition for Developers and Multi-Dwelling Sites
Housing demolition for developers often means more than one dwelling: two or three amalgamated lots for a townhouse project, a block of older units or a row of houses on a growth-corridor site. We plan these as a single program, with one set of disconnections, one asbestos survey and removal stage, one demolition sequence and one site clearance. That keeps the site ready for the excavation and construction program. Where the development needs a basement or bulk earthworks, our excavation team follows straight on.
Protecting Neighbours and Adjoining Buildings
Close neighbours are a fact of life in Sydney. Before work starts, we look at boundary walls, adjoining structures and shared services, and we can arrange dilapidation reports where your approval or certifier requires them. During the works we use water suppression for dust, keep work within permitted hours and sequence the demolition to avoid loading or undermining anything next door. See how we manage this on our Safety & Compliance page.
Structural Demolition — FAQs
Structural Demolition: Costs, Planning & Advice
Official sources & standards
- SafeWork NSW — Restricted demolition licence
- SafeWork NSW — Unrestricted demolition licence
- SafeWork NSW — Demolition work
- NSW Planning Portal — Demolition as complying development
- Standards Australia — AS 2601 The demolition of structures
Approval, licensing and safety information on this page was checked against the sources above on 20 October 2026. Prices are indicative and reviewed periodically; your fixed price always comes from a site inspection. Content maintained by H&R Demolition & Excavation · Licences & standards · Demolition glossary
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