BPA Cottages Explained

What Is a BPA Cottage?

A BPA Cottage is a transportable cottage designed to form part of a site-specific Class 1a approval pathway.

A BPA Cottage is a transportable cottage designed to form part of a site-specific Class 1a approval pathway. The cottage itself is manufactured to an agreed specification, but planning permission, building permission, engineering, energy assessment, foundations, site services and final occupancy requirements must still be assessed for the individual property.

What "BPA" Means

What Does BPA Actually Mean?

What BPA Does NOT Mean

  • Already approved anywhere
  • A guarantee that one design fits every property
  • Exemption from planning or building permits
  • A shortcut around council requirements

What BPA DOES Mean

  • Designed and documented to participate in a building-permit approval process
  • Subject to the property, proposed use, and site-specific requirements
  • Manufactured to a specification that can support a Class 1a application
  • Backed by product drawings and manufacturing information
What We Supply

What We Provide

The cottage — manufactured to your agreed specification

Agreed factory specifications

Product drawings

Relevant manufacturing and structural information

Project coordination within the contracted scope

Delivery and installation where included

What Is Site-Specific

What Must Be Assessed for Your Property

Planning approval
Building permit
Soil test
Bushfire assessment (BAL)
Energy assessment
Structural and footing design
Wastewater
Flood or overlay requirements
Service connections
Final inspections
Occupancy permit

This distinction is central. The cottage is ready for the approval process — but the approval itself depends on your property, your proposed use, and your site-specific requirements.

Ready to Explore Further?

Take the next step — check your property, understand the approval pathway, or explore our cottage models.

Last reviewed: July 2026 · Applicable jurisdiction: Victoria · General information only — not legal, planning or engineering advice.

Requirements vary by property, local government area, building classification and proposed use. Obtain site-specific advice before making financial commitments.