Ground-floor extensions, second-storey additions, and new living space integrated with the existing home.
Cowell RenovationGladesville, NSWExtension Fit
An extension has to do more than add area. The new structure, roof, services, levels, circulation, and materials need to connect to the standing home without creating a collection of unresolved junctions.
Extension Scope
CASA coordinates the opening, temporary protection, structural support, new envelope, services, and finish transitions around the home that remains.
What you needThe retained structure, services, levels, roof, and access understood before the connection is opened.
What CASA controlsCASA works from the available documentation and site condition to plan protection, staging, and the construction sequence.
What you needNew slabs, walls, beams, openings, and upper-floor work tied into the standing building as documented.
What CASA controlsCASA sequences temporary support, demolition, structural work, and enclosure so the connection remains controlled.
What you needRoofing, drainage, waterproofing, plumbing, electrical work, and other services connected across old and new areas.
What CASA controlsCASA coordinates weatherproofing and service routes before the connection is concealed by linings and finishes.
What you needFloors, walls, ceilings, openings, and materials meeting cleanly across the extension line.
What CASA controlsCASA establishes the key levels and material transitions early and carries them through the finishing sequence.
Extension Delivery
The existing home is protected first, the connection is opened in a controlled sequence, and the new work is enclosed before internal services and finishes bring both areas together.
Work zones, temporary weather protection, access, and retained surfaces are established before the connection is opened.
Structure, roof, facade, openings, drainage, and waterproofing are coordinated to establish a secure new envelope.
Services, linings, floors, joinery, and finishes complete the transition between the original home and the addition.
Relevant Projects
Related Services
For updating the retained rooms and finishes alongside the new addition.
For projects where the scale of new construction moves beyond an addition.
For resolving terraces, garden levels, drainage, and outdoor connections around the extension.
Service FAQs
Clear starting points for planning the scope and preparing an enquiry.
CASA handles ground-floor extensions, rear and side additions, second-storey additions, and new living space connected to an existing home.
Protection, access, work zones, and temporary weather measures are planned around the specific connection and the parts of the home that remain.
Send the address, the space you want to add, existing and proposed plans if available, photographs of the connection area, access information, and your intended timing.
Start a Conversation
Share the home, proposed new space, current documentation, timing, and connection area. CASA will review the information and outline the next practical step.
