Architect-designed homes, built around how you want to live. Without the cost, complexity, or compromise of the alternatives.

Architect-designed sustainable two-storey home with timber accents and native garden

Certified Passivhaus Experts

As Featured on Grand Designs

20 Years of Architecture

Altereco₂ is a different way into an Altereco home. The same architectural thinking and passive house principles, structured as a considered range of designs rather than a fully custom process.

As Featured In

Mindful Builder Podcast

Passive House Podcast

Explore our pre-designed range

Pre-designed, ready to build, high-performance home designs

Bilby

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Available in 3 sizes

170m² floor plan

3-4 bedrooms

Price: Starting from $0

View Design

Possum

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Available in 3 sizes

170m² floor plan

3-4 bedrooms

Price: Starting from $0

View Design

Swift Parrot

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Available in 3 sizes

170m² floor plan

3-4 bedrooms

Price: Starting from $0

View Design

Frog

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Available in 3 sizes

170m² floor plan

3-4 bedrooms

Price: Starting from $0

View Design

Finch

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Available in 3 sizes

170m² floor plan

3-4 bedrooms

Price: Starting from $0

View Design

Quoll

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Available in 3 sizes

170m² floor plan

3-4 bedrooms

Price: Starting from $0

View Design

Wondering the best fit for you?

Let us do the matching.

Answer a few quick questions about your block, how you live, and what you're drawn to. We'll match you to a design and an interior palette in about three minutes.

Take the quiz

(p.s. we promise it’s only 3 mins. We also won’t hold you to anything)

Bright Altereco2 interior with timber joinery

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Why Altereco2

"Pre-designed" doesn't mean what you think it means. Here's why this is different.

Isometric line drawing of a pre-designed passive house floor plan

Speed

Speed and certainty

Full custom architecture can take years, with real uncertainty at every stage. Altereco2 gives you the same design thinking, the same performance standard, and a much clearer path from decision to build.

Isometric line drawing of a customisable Altereco2 home layout

Customisation

Genuinely yours

Facade, palette, add-ons, all real choices. No two Altereco2 homes on the street need to look the same, even from the same base design.

Performance

Built to perform, not just built

Every design starts from passive house principles. Warmer in winter, cooler in summer, lower running costs, for the life of the home, not just the display version.

Isometric line drawing of an architect-designed sustainable home plan

Quality

Same expert studio, a different path in

Altereco2 comes from 18 years of architectural practice and Passivhaus expertise, structured into a range you can access without the full custom process, or the full custom price.

We don't sell designs. We help you live better. See how it compares.

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Project Builders

Full Custom Architecture

Altereco2

Design

Same plans everywhere

Designed specifically for you

Architect-designed range, curated not generic

Performance

Minimum energy compliance

Genuinely high performance, if specified

Passive house principles, built in as standard

Timeline

Fast

Years, uncertain

Fast, with a clear path

Cost Certainty

Low, hidden extras common

Variable, harder to predict early

Honest, inclusive range from the start

Individuality

None

Full

Real choice within a considered framework

Choose from our three carefully crafted interiors

Warm interior palette kitchen with timber island and dark cabinetry

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Warm

Contemporary

Bold

Every Altereco2 design is a complete, considered offer, not just a floor plan. Documentation, performance, and finish are all part of what you're buying, not extras you have to chase down afterwards.

What comes in your design

Complete documentation, before you commit

Three curated interior worlds, not endless decisions

Passive house principles, built in, not bolted on

Make it yours, within a framework that works

Two-storey Altereco2 passive house exterior with shaded balcony

Homeowner in a terrazzo kitchen inside an Altereco2 home

What it costs to build

Cost is usually the first question, and the one people get the vaguest answer to. We'd rather you know exactly what an Altereco2 home costs to build, and what typically sits outside that number, before you fall in love with a design. No guessing, no fine print you find out about later.

Designed to be built, not just look good

Passive house and high-performance designs

Responsible materials chosen for the future

Designed for comfort and efficiency

Designed to work

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Light-clad Altereco2 home with timber screen and native garden

Designed to be built, not just look good

Built exactly as drawn, on real sites

Tested through real Australian conditions

Proven to be built, not just promised

Proven to be built

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Timber and grey clad Altereco2 home built on a real site

Client Words

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John Smith

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John Smith

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John Smith

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John Smith

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John Smith

How it works

From choosing a design to moving in, here's the easy, honest sequence.

ONE

Choose your design

Browse the range or take the quiz. Download the free plan, or purchase full documentation.

TWO

Choose your design

Browse the range or take the quiz. Download the free plan, or purchase full documentation.

THREE

Choose your design

Browse the range or take the quiz. Download the free plan, or purchase full documentation.

FOUR

Choose your design

Browse the range or take the quiz. Download the free plan, or purchase full documentation.

FIVE

Choose your design

Browse the range or take the quiz. Download the free plan, or purchase full documentation.

SIX

Choose your design

Browse the range or take the quiz. Download the free plan, or purchase full documentation.

Not sure where to start?

Book a free consult.

Talk through your site, your goals, and what's still uncertain. In 30 minutes, we'll help you figure out the right next step for your home design.

Book your free 30 minute consult

(p.s. no obligation. No pressure. No shady sales tactics)

Bright Altereco2 living area with timber joinery and garden views

Have a question?

FAQ’s

Can I change something in the design?

The floor plan and structural layout stay fixed, that's what keeps the process fast and the cost honest. But there's real choice within that: interior palette, facade material, and optional add-ons like solar, battery, and EV charging.

If you want deeper input on how to make those choices work for your site, that's what a consult is for.

Do I need full Passivhaus certification?

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What does it actually cost to build?

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Can I use my own builder?

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What if this design doesn't suit my block?

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How long does the whole process take, from here to moving in?

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What's the difference between downloading the free plan and purchasing?

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Our Mission

If you want deeper input on how to make those choices work for your site, that's what a consult is for.

Browse designs

Take the quiz

Architect-designed homes, built around how you want to live. Without the cost, complexity, or compromise of the alternatives.

As Featured In

Pre-designed, ready to build, high-performance home designs

Bilby

Possum

Swift Parrot

Frog

Finch

Quoll

Wondering the best fit for you?

Let us do the matching.

"Pre-designed" doesn't mean what you think it means. Here's why this is different.

Speed and certainty

Genuinely yours

Built to perform, not just built

Same expert studio, a different path in

We don't sell designs. We help you live better. See how it compares.

Choose from our three carefully crafted interiors

Every Altereco2 design is a complete, considered offer, not just a floor plan. Documentation, performance, and finish are all part of what you're buying, not extras you have to chase down afterwards.

What it costs to build

Designed to be built, not just look good

Designed to work

Designed to be built, not just look good

Proven to be built

From choosing a design to moving in, here's the easy, honest sequence.

Choose your design

Choose your design

Choose your design

Choose your design

Choose your design

Choose your design

Not sure where to start?

Book a free consult.

FAQ’s

Our Mission

Find your Altereco2 match

Which way does your block face the street?

How many bedrooms do you need?

Who will be living in the home?

How would you like to live?

Which interior palette are you drawn to?

When are you hoping to start building?

Where should we send your match?