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This service provides general guidance based on published building standards. It is not a substitute for professional advice from a licensed building surveyor or certifier.

Renovation & Alterations

Requirements for modifying existing buildings, heritage considerations

15 articles

Building in Flood-Prone Areas Requirements and Restrictions

What This Requirement Covers Building in flood-prone areas rules set minimum standards to reduce risk to life, property and building functionality from...

12 Apr 2026·9 min read

Sub-Floor Conversion and Underpinning Requirements

What This Requirement Covers Sub-floor conversion and underpinning requirements govern the structural, moisture-control, termite management and ventilation...

12 Apr 2026·7 min read

Upgrading Electrical and Plumbing in Older Homes

What This Requirement Covers Upgrading electrical and plumbing systems in older homes involves bringing existing services up to current safety, performance and...

12 Apr 2026·8 min read

Removing Internal Walls and Structural Modification Requirements

What This Requirement Covers Removing internal walls or otherwise modifying internal structural elements changes how a building carries loads, resists lateral...

12 Apr 2026·8 min read

Structural Assessment Requirements for Heritage Renovations

What This Requirement Covers Structural assessment requirements for heritage renovations govern how existing heritage-listed or heritage-significant buildings...

12 Apr 2026·8 min read

Pergola and Patio Enclosure Requirements

What This Requirement Covers This requirement explains how the National Construction Code (NCC) and the ABCB Housing Provisions treat pergolas and patio...

12 Apr 2026·9 min read

Deck and Verandah Addition Building Requirements

What This Requirement Covers This requirement explains the National Construction Code (NCC) provisions, housing provisions and relevant Australian Standards...

12 Apr 2026·9 min read

Window and Door Replacement Compliance Requirements

What This Requirement Covers This requirement covers the compliance obligations when replacing windows and doors in buildings subject to the National...

12 Apr 2026·9 min read

Garage Conversion to Habitable Room Requirements

What This Requirement Covers Converting an existing garage into a habitable room (for example a bedroom, home office, or living area) requires the space to...

12 Apr 2026·9 min read

Kitchen Renovation Building Code Requirements

What This Requirement Covers This article summarises the building code requirements that commonly apply to kitchen renovations in Australia under the National...

12 Apr 2026·8 min read

Bathroom Renovation Waterproofing and Compliance

What This Requirement Covers Bathroom waterproofing requirements in the National Construction Code (NCC) and related Australian Standards set minimum measures...

12 Apr 2026·8 min read

Granny Flat and Secondary Dwelling Construction Requirements

What This Requirement Covers This requirement covers the construction standards, siting, structural design, fire separation, ventilation, services and...

12 Apr 2026·9 min read

Adding a Second Storey Extension Compliance Requirements

What This Requirement Covers Adding a second storey extension means altering an existing building by constructing an additional storey above the existing roof...

12 Apr 2026·8 min read

Change of Building Classification and Upgrade Requirements

What This Requirement Covers A change of building classification occurs when a building, or part of a building, is adapted or proposed to be used for a...

12 Apr 2026·10 min read

NCC Compliance Requirements When Renovating Existing Buildings

What This Requirement Covers Renovating an existing building under the National Construction Code (NCC) means carrying out work that alters the building,...

12 Apr 2026·9 min read