Approvals & Compliance Blog | giantA Pty Ltd

27 Articles

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BASIX Dual Occupancy NSW 2026: Multi-Dwelling Pathway, Shared Facilities and When Principal + Secondary Count as One Project

Answer first: In NSW, a dual occupancy — or a new principal dwelling plus a new secondary dwelling on the same lot — typically starts on the BASIX multi-dwelling pathway when you are assessing more th...

Approval Process BASIX NSW Planning Secondary Dwelling basix-certification basix-compliance energy efficiency nathers

22 Sept 2026

BASIX Certificate Validity NSW 2026: The 3-Month Lodgement Window and When Design Changes Need a Revision

Before lodgement, a NSW BASIX certificate is valid for three months ; once lodged with council or an accredited certifier it rides with the DA or CDC for the life of the approval. Design changes usual...

Approval Process BASIX Council Approval NSW Planning basix-certification basix-compliance energy efficiency nathers

19 Sept 2026

BASIX for NSW Swimming Pools and Spas 2026: The 40,000-Litre Trigger and the $50,000 Alterations Rule

Answer first: In NSW, a BASIX certificate is required for a swimming pool and/or spa with a total volume greater than 40,000 litres , and/or for alterations and additions valued at $50,000 and over . ...

Approval Process BASIX Council Approval NSW Planning basix-certification basix-compliance energy efficiency nathers

16 Sept 2026

BASIX Alterations NSW 2026: Why You Still Need a Certificate Over $50k — Even With No Commitments

Answer first: For NSW alterations and additions to an existing BASIX-affected dwelling costing $50,000 or more, a BASIX certificate is required regardless of the nature of the works. The online tool a...

BASIX Home Renovation NSW Planning basix-certification basix-compliance energy efficiency nathers renovation

10 Sept 2026

BASIX Simulation for NSW Alterations 2026: When NatHERS Modelling Is Allowed Over $50k

In New South Wales, alterations and additions valued at $50,000 or more generally need a BASIX certificate — and so do pool/spa works over 40,000 litres. Most renovations clear the standard alteration...

BASIX Home Renovation NSW Planning basix-certification basix-compliance energy efficiency nathers nathers-certificate

7 Sept 2026

Class 2 Building Design Fees vs Construction Costs in Sydney: A 2026 Cost Breakdown for Apartment Developers

What Does It Actually Cost to Design and Build a Class 2 Apartment Building in Sydney in 2026? A Class 2 apartment building in Sydney costs between $3,200 and $6,200+ per square metre of gross floor a...

BASIX apartment-design approvals basix-compliance class-2-building design-practitioner multi-residential nsw-building-compliance

6 Sept 2026

BASIX for Alterations and Additions in NSW 2026: When Your Renovation Triggers a Certificate

Renovating your home in NSW in 2026 means navigating a web of planning and building regulations, and BASIX is one that catches many homeowners by surprise. If your renovation budget is $50,000 or more...

BASIX NSW building regulations Sustainable Building basix-certification basix-compliance nsw-planning renovation renovation-sydney

4 Sept 2026

Embodied Carbon Reporting in NSW 2026: How the March Technical Note and NABERS Tool Change Your DA Process

From 1 October 2023, every new residential development application in NSW has been required to report embodied carbon emissions through the BASIX Materials Index. Non-residential developments face a p...

BASIX NABERS NSW Planning embodied emissions energy efficiency nsw-building-compliance sustainability sustainable-building

1 Sept 2026

All-Electric Homes in NSW 2026: How the Gas-to-Electric Transition Cuts Energy Bills by Up to $4,000 a Year

Switching from gas to all-electric appliances in an NSW home can save up to $2,771 per year for a house or $2,400 for an apartment, rising to around $4,000 annually when paired with rooftop solar, acc...

BASIX Home Renovation basix-certification energy-efficiency residential-projects sustainability

28 Aug 2026

Granny Flat Energy Compliance NSW 2026: BASIX, NatHERS and Cost-Saving Strategies for Secondary Dwellings

Introduction Every secondary dwelling in NSW — whether a 45m² studio or a 60m² self-contained granny flat — must obtain a BASIX certificate before a Development Application or Complying Development Ce...

BASIX basix-certification basix-compliance energy efficiency energy-efficiency energy-efficient-design sustainability thermal performance

25 Aug 2026

BASIX Solar PV and Battery Storage NSW 2026: Energy Compliance and the Emergency Backstop

Introduction: Solar PV Is Now Central to BASIX Energy Compliance When BASIX first launched in 2004, a rainwater tank and a solar hot water system were enough to sail through compliance. Two decades la...

BASIX basix-certification basix-compliance energy efficiency energy-efficiency energy-efficient-design nsw-building-compliance solar PV

22 Aug 2026

BASIX Certificate NSW 2026: Complete Step-by-Step Guide to Getting Your BASIX Certificate

TL;DR A BASIX certificate is a mandatory planning document required for all new residential developments, renovations over $50,000, and pools over 40,000 litres in NSW. You obtain it through the NSW P...

BASIX basix-compliance energy-efficiency nathers passive-house sustainability

19 Aug 2026

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