The average Australian house is 186.3 square meters (and climbing). 4 bedroom homes are also growing in popularity, although currently the most common home configuration in Australia is a three bedroom home. Around 44% of all Australian homes are 3 bedrooms, while just under one in three Australian homes have four or more bedrooms. This is a drastic increase in the popularity of 4-bedroom homes from the 1990s, when 3-bedroom homes made up over half of all Australian housing.

The 4 bedroom homes are the largest homes you can still find at reasonable prices. The average cost to build a 4-bedroom house is between $2,000 and $4,000 per square meter. Realistically, that puts the range between $230,000 and the low millions. Many factors will affect the overall cost of buying or building a 4 bedroom home, such as location, land, materials, furnishings, taxes, and legal fees. For an overview of hidden costs, see here.

House plans and designs for 4 bedroom homes are very versatile. They will heavily depend on the type of building – i.e. number of floors, if there is a granny flat, number of bathrooms, general size, block of land, etc. . A popular rule of thumb is that houses should have around 55-65 square meters of space per person. This ensures that the house will not feel too cluttered and that individuals can freely occupy the space.

In Australia, single-storey houses are the most common configuration. To accommodate this, a very popular trend for four bedroom homes is to have the master bedroom at one end of the home, separated by the kitchen and living room(s)/dining room(s). eat from the three smaller bedrooms, which are usually grouped together at the end of a hallway. However, it is one design among many others.

Choosing the right house plan for a 4 bedroom home can seem quite daunting. The abundance of choices makes sorting through possible plans a tedious and time-consuming task. To help narrow down some of the best options, here is a list of the best 4 bedroom home designs and layouts in Australia to suit each home type.

Unique 4 Bedroom House Plans: Best Modern Designs For Four Bedroom House Plans Australia

8. Detached

A unique style of home design that has been gaining traction in recent times is the detached model. With the growing popularity of tiny homes, people have decided to keep multiple tiny homes on their property rather than one large home.

This allows you to have all the privacy of a 1 bedroom or 2 bedroom home without losing space to house guests or other family members. It’s also much more affordable than rebuilding or renovating an existing home. Whether you choose a kit home, a manufactured home, or even a container home, there are many benefits to having multiple freestanding homes on your property.

7. Movable/kit houses

Indoor open concept kitchen and dining room for a four bedroom home

If you still want the benefits of a traditional home at an affordable price, you might want to consider a kit home. Kit houses or portable buildings are a type of prefabricated buildings that arrive on the house disassembled. You’ll have to build the house yourself (or with the help of contractors) once the parts arrive, but the overall cost is far less than a traditional house. Check out the top 13 prefab home suppliers in Australia here.

6. 2 floors

Floor plan of a 2 story house

Although two-storey houses are not as popular in Australia as in other countries, they still have a place in the Australian design landscape. The majority of two-story homes have 3 or 4 bedrooms and will place the master bedroom upstairs on its own private floor. Learn more about cheap 2 story floor plans or how to add a second story to your home.



A duplex is a residential house divided into two completely independent units. These units share a wall and nothing else. Common duplex home designs will make each side a mirror image of the other, usually with the bedrooms as far away from the common wall as possible to reduce noise pollution. Learn more about duplex designs and floor plans here or purchase the design above.

4. 2 bathrooms

prestige kit homes 4 bedroom home design floor plans

Having two bathrooms is usually the norm for a four bedroom home. Indeed, this house design is often used by larger families and sharing a bathroom between 4 and 6 people can become very complicated very quickly. This way, residents will always have access to a toilet while someone is in the shower, so that no uncomfortable situations can arise. You can purchase the home design pictured above from Prestige Kit Homes or learn more about bathroom floor plans.

3. Small four-bed single bed

queenslander home kit home floor plans designs cheap prefab buildings

This classic Queensland home is a perfect example of a simplistic yet effective 4 bedroom home design. In classic 4-bed fashion, the master bedroom is somewhat separated from the others and the remaining three bedrooms are located at either end of a hallway. Purchase this plan here at Anchor homes and browse images of its completed construction.

2. 3 bathrooms

luxury home design 3 bedroom 3 bath architectural design floor plans buy online stunning

The 4-bedroom, 3-bathroom homes are a bit more luxurious. Typically, the third bathroom will be an ensuite to the master. Floor plans for the 4,923 square foot home pictured above are available here from House Plans starting at $765. Learn more about bathroom and bathroom design.

1. Single Story

One story long house with floor plans and preface dimensions of houses

Single storey houses are extremely popular in Australia. As such, 4 bedroom floor plans are easy to find. The 4-bedroom, 5-bathroom home pictured above is one of the luxury models offered by Imagine Kit Homes starting at just $331,650.

Imagine Kit Homes prefab long house design kit one story 4 bedrooms 5 bathrooms

You can browse floor plans on the Imagine Kit Homes website, request an instant quote, or learn more about single storey home design options in Australia.