Two storey additions & home extensions

Extensions shaped by years of expertise in sloping sites and heritage homes.

Luxury home extensions crafted for the Fleurieu Peninsula.

A well-designed addition should feel as though it’s always belonged. Whether you’re adding a second storey master retreat with coastal views or expanding your ground floor for modern open-plan living, each Kleinig Constructions home extension is designed with harmony and intention.

Our team blends architectural understanding, craftsmanship, passive design principles and local knowledge to create homes that evolve naturally.

From proportion and structure to material selection and orientation, every detail is considered so the new and existing blend seamlessly.

See common additions we build

Beautiful, functional ways to upgrade your home.

Two storey extensions

Elevate your home with an upper level designed for light, views and privacy. Create space for a master retreat, additional bedrooms or a second living area while keeping your garden.

Ground floor extensions

Expand your home with flowing kitchen, dining and living areas that open to the outdoors. Improve light, layout and functionality while keeping the character of your existing home.

Interior upgrades

Breathe new life into tired spaces. Repair dated interiors, modernise finishes and fixtures, incorporate sustainable improvements, and open up rooms for better flow and everyday comfort.

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Our collaborative approach to custom home extensions.

Extending your home should feel seamless in both design and experience. We work closely with you from concept to completion, ensuring your new spaces blend naturally with your existing home and the way you live.

Consultation

We review your existing home and goals to find the best way to expand or reconfigure your space.

plans

We work with designers or architects to create plans that work structurally with your existing home, improve flow and complement your existing structure.

Acceptance

You receive a detailed proposal with clear inclusions, costs and timelines before work begins.

construction

Our trusted trades build with care, protecting your existing home while adding new life to it.

quality checks

Every stage is inspected to ensure a flawless connection between new and existing spaces.

handover

We walk you through the finished result and stand behind it with our satisfaction guarantee.

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Built for Fleurieu conditions.

Extending a home on the Fleurieu Peninsula requires deep local understanding. From sloping sites and weathered character homes to council requirements and coastal conditions, every project presents its own set of challenges.

Our team combines architectural awareness with technical precision to ensure your extension feels seamless, stable and beautifully integrated.

We consider soil types, weather exposure and orientation to select materials and methods that perform in local conditions and stand the test of time.

We also navigate zoning, design guidelines and approvals to make the process straightforward and transparent. Each design enhances what already exists while introducing modern functionality, energy efficiency and lasting comfort.

The result is an extension that not only looks at home but lives beautifully within its environment.

Explore our passive design approach

Why homeowners choose to partner with Kleinig.

Architectural balance

Each addition is thoughtfully designed to complement your home’s existing proportions and style, blending old and new so seamlessly that it feels like it’s always belonged.

Passive design principles

Every project embraces the Fleurieu Peninsula’s natural light, breezes and orientation, creating spaces that stay comfortable and energy-efficient all year round.

Local craftsmanship

Our extensions are built by skilled local trades who understand the region’s conditions, ensuring every detail is delivered with precision, care and consistency.

Enduring performance

We use durable, low-maintenance materials suited to coastal environments, crafting homes that stand the test of time both structurally and aesthetically.

Complete project management

From concept to completion, the Kleinig Construction team oversees every stage with clear communication and personal service for a smooth, confident building experience.

Extension projects.

Explore our current and in progress projects showcasing bespoke additions and extensions across the Fleurieu Peninsula.

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Ready to build your peninsula escape?

Let’s build something beautiful together.

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Everything you want to know before you build.

Here are some of the answers you might be looking for.

Am I allowed to extend my on the Fleurieu Peninsula?

Most extensions require development approval from your local council. This applies to any project that increases floor area or alters the existing structure. Your builder can assist with the process, but ultimately, you’re responsible for ensuring all approvals are in place before work begins.

How long will a home extension take?

Timeframes depend on the size and complexity of your project. Council approvals typically take around four to six weeks.

Once construction begins, smaller additions may take a few months, while larger or bespoke two storey builds can take longer depending on weather, materials, and site conditions.

Can I live in the home during construction?

For minor additions, you may be able to stay with some disruption.

However, large scale or second storey extensions often require temporary relocation for safety and practicality. Discuss this with your builder early so plans can be made accordingly.

What are the costs involved in a home extension?

Extension costs vary depending on size, design, materials, and site conditions. A detailed quote from an experienced local builder will help you budget accurately. Always allow for contingencies in case of unforeseen changes during construction.

How will the extension affect privacy?

Thoughtful design can protect both your privacy and your neighbours’. Window placement, screening, and landscaping all play a role, and local councils have setback guidelines that must be followed.

What design options suit sloping or coastal sites?

Homes on the Fleurieu Peninsula often require clever design solutions such as split levels, elevated floors or retaining walls. In coastal areas, durable materials and corrosion resistant finishes are essential. Designs typically incorporate large windows and verandas to capture views and breezes.

How can energy efficiency be improved?

Many modern extensions use passive design principles such as orientation, insulation and cross ventilation, supported by solar power and efficient glazing.

These choices create comfortable, low maintenance homes with reduced running costs.

Extensions & Additions