Average Home Size by Country: From 214 m² in Australia to 45 m² in Hong Kong

Published on: August 6, 2026

Last verified: 6 August 2026. Figures are the latest available from national statistical offices and the OECD, measured on differing national conventions as explained below.

Quick answer: New homes in Australia average about 214 m² and new US single-family homes about 200 m², while the whole-stock average across most of Western Europe is 90 to 100 m², UK new builds are about 76 m², and a typical Hong Kong flat is about 45 m² with a median of roughly 16 m² of space per person. The gap says more about land, planning and history than about money, and because countries measure floor area differently (usable vs built vs saleable), differences of a few square meters between countries are noise.

The average new home in Australia is about 214 square meters. The average flat in Hong Kong is about 45. That is a fivefold gap between two wealthy, developed markets, and it says more about land, planning and history than about money. This page collects the most reliable average home size figures by country, explains what each number actually measures (this matters more than most rankings admit), and shows how to compare homes fairly when you are looking across borders.

Average home size by country

Two countries deserve a note rather than a single row. In China, national statistics are usually reported per person rather than per dwelling: the 2020 census put average living floor space at roughly 41 m² per person nationwide and around 36 m² in cities, a figure that has risen dramatically over two decades. In Singapore, the picture splits between spacious public HDB flats (a standard 4-room flat is around 90 m²) and much smaller new private condominium units.

Per person is the fairer measure

Average home size hides household size. A 214 m² Australian house shared by four people gives each person less space than a 120 m² apartment shared by two. On a per-person basis:

• Residents of Australia, the US and Canada enjoy roughly 60 to 80 m² of floor space each, among the most in the world.
• The EU averages 1.6 rooms per person (Eurostat, 2023), with Luxembourg and Malta most spacious at 2.2 rooms per person, and Poland, Romania, Croatia and Slovakia tightest at 1.1 to 1.2.
• Hong Kong's 2021 census recorded a median living space of about 16 m² (172 sq ft) per person, roughly a quarter of the American or Australian figure and among the lowest in the developed world.

Why homes are so much bigger in some countries

Land and planning. The US, Canada and Australia built car-centric suburbs on abundant land, and zoning in many areas mandated large lots and detached homes. The UK, by contrast, constrains cities with green belts and builds some of the smallest new homes in the developed world; London's planning rules set a minimum of just 37 m² for a new one-person flat.

Urban form. Countries that urbanized into apartments (Spain, Italy, South Korea, Japan's cities) average far smaller dwellings than countries that urbanized into detached houses, regardless of wealth.

History of the stock. Japan's homes are rebuilt frequently, so the stock reflects modern compact design; Europe's stock includes centuries of small pre-war housing. New-build averages and whole-stock averages can differ hugely, which is why the UK shows both 76 m² and 96 m² depending on what you count.

Household economics. Where land is cheap relative to incomes, extra rooms are the default. Where it is scarce, developers optimize for units per floor. Hong Kong and inner Singapore are the pure expression of scarcity.

Shrinking households. Across the developed world, average household size is falling, so even where homes stop growing, space per person keeps rising.

The measurement trap: no two countries count the same way

This is the part most rankings skip, and it can distort comparisons by 20% or more:

• The US excludes a lot. US figures use gross living area, which leaves out garages, unfinished basements and unheated space. A standard American double garage adds 40 to 50 m² of built footprint that never appears in the statistic. Counted the way some other countries count, the US average would be well above Australia's.
• The UK's headline figure follows the EPC "total floor area" convention, which also excludes unheated garages.
• Hong Kong and Singapore quote saleable area, which strips out lobbies, lift shafts and corridors that gross-floor-area figures include.
• Southern Europe and Türkiye often advertise built or gross area, which includes walls, a share of common areas and sometimes terraces, and can run 15 to 25% above the usable interior space.

Because of this, differences of a few square meters between countries are meaningless, and a listing's headline number can mean very different things in Madrid, Miami and Manila. We cover exactly how these definitions work, country by country, in built area vs usable area.

Size is only half the equation

A big home is not a cheap home, and a small one is not always expensive, but the extremes line up in a revealing way: the markets with the smallest homes are usually the ones with the highest prices per square meter. Hong Kong manages to combine the developed world's smallest living spaces with some of its highest prices per meter. For the price side of this comparison, see the most expensive and cheapest real estate per square meter worldwide.

The direction of travel is also worth knowing. American new builds have been shrinking since their 2015 peak of about 229 m² (2,467 sq ft) as affordability pressure pushes builders toward smaller product. Australia has plateaued near record size. The UK keeps building new homes smaller than its existing stock. Meanwhile in fast-growing Asia, average space per person continues to climb from a low base.

What this means when you are buying abroad

1. Always ask which measure the listing uses. Usable, built, gross, saleable and EPC areas are different numbers for the same home.
2. Compare price per square meter of usable space, not price per home, when weighing markets against each other.
3. Recalibrate your expectations by market. A 90 m² apartment is compact in Texas, standard in Germany and generous in Tokyo or Hong Kong.
4. Check what is included. Terraces, storage rooms, parking and basements are counted in some countries' figures and sold separately in others.

Frequently asked questions

Which country has the biggest homes in the world?
Australia, with new dwellings averaging about 214 m², followed closely by New Zealand, the United States and Canada. If garages were counted the way some countries count them, the US would likely rank first.

Which places have the smallest homes?
Hong Kong, where a typical flat is around 45 m² and median space per person is about 16 m². UK new builds are the smallest in Western Europe at about 76 m².

How big is the average home in Europe?
Roughly 90 to 100 m² across most of Western Europe's housing stock, with the UK below that range and Scandinavia above it.

Is 100 m² a big home?
Globally, yes: it is above the whole-stock average of most European and Asian countries. In the US, Canada or Australia it reads as compact, because their averages are pulled up by large detached houses.

Keep reading on JanusHermes

Once you know what a square meter means in each market, the next question is what it costs there. JanusHermes aggregates local agency listings across more than 50 countries in 11 languages, with the local agency's contact details on the listing.

For the price side, see the most expensive and cheapest real estate per square meter worldwide, what