Projects

Demolish and Rebuild: Split-Level New Home in Avalon Beach

Some sites have more potential underground than above it. ABCD undertook major excavation works through rock in order to achieve the required reduced levels (RL) for the construction of a new split-level, three-storey residence. The new home features three large bedrooms and a spacious kitchen and living area designed for comfortable family living. In addition, the property includes a self-contained living area with an additional bedroom and ensuite, providing flexible accommodation options. The development also includes a double garage with an elegant two-bedroom accommodation located above.

Project Scope

This project included:

Demolition of the existing dwelling
Major rock excavation to achieve the required reduced levels for the build
Construction of a split-level, three-storey residence
Three large bedrooms and open-plan kitchen and living areas in the main home
Self-contained living area with additional bedroom and ensuite
Construction of a double garage with two-bedroom accommodation above
Installation of a 10,000-litre on-site detention (OSD) concrete tank as part of the stormwater management system

Rock Excavation: Starting From Scratch

Before a slab could be poured, the site had to be cut through solid rock to achieve the required reduced levels. Rock cutting demands specialised plant, careful sequencing, and precise level management. ABCD Builders managed the full excavation and site preparation, creating the stable platform everything above ground is built on.

The Home: Space, Flexibility and Smart Design

To improve the functionality of the home, the main residence was designed with three large bedrooms and a generous open-plan kitchen and living area across a split-level, three-storey layout. A self-contained living area with its own bedroom and ensuite was also incorporated to create more flexibility for extended family, a teenage retreat, or potential rental use. Above the double garage, an additional two-bedroom accommodation zone was built in to further expand the property’s versatility. These spaces were intentionally planned from the outset to add long-term usability and value, rather than being treated as later additions.

On-Site Detention Tank: Built to Code

A 10,000-litre reinforced concrete on-site detention tank was installed as part of the stormwater management system. OSD requirements are standard on new builds across Northern Beaches Council. Designing and installing a system that meets council specifications, integrates with site drainage, and performs reliably long term requires careful engineering. ABCD Builders handled it in full.

New Home Construction in Avalon Beach and the Northern Beaches

A demolish-and-rebuild on the Northern Beaches is one of the most complex project types a builder can take on. Demolition, rock excavation, council approvals, stormwater engineering, and multi-storey construction all need to be managed without compromise. Steep blocks, sandstone substrates, and coastal planning overlays across Avalon Beach, Whale Beach, Newport, and Palm Beach add further complexity. ABCD Builders works exclusively on premium residential projects in this part of Sydney.

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Frequently Asked Questions

How long does a demolish-and-rebuild take on the Northern Beaches?

A project of this scale typically runs 18 to 24 months from DA approval to practical completion. Rock excavation, structural complexity, and multi-dwelling construction all affect the timeline. We provide detailed programmes upfront. No surprises.

Do you manage demolition as well as construction?

Yes. ABCD Builders manages the full project lifecycle: demolition, site preparation, excavation, and construction. One builder, one point of contact, complete accountability.

Can you build on a site requiring rock excavation?

Yes. Rock excavation is a core capability, managed in-house to ensure the site is correctly prepared before construction begins.

Why Choose ABCD Builders

Demolition, rock excavation, multi-storey construction, stormwater engineering: all on a Northern Beaches site. That is the kind of project ABCD Builders was built for. Fully licensed (Lic No: 150976C) and HIA-accredited (HIA No: 860896).

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Start Your New Home Journey

Planning a demolish-and-rebuild, new home construction, or major development on the Northern Beaches? Bring us your site and brief — we will give you a straight answer on what is possible, what it will cost, and how we will get it done.