The European cities where homes have the least green space
Green space in 37 European capitals, from Valletta and Athens at 17% to Oslo at 77%, and how many people in each country live in a flat.
Valletta and Athens are the least green capitals in Europe. Green covers 17% of each city, against 77% in Oslo, according to the European Environment Agency. Malta and Greece also have some of the highest shares of people living in flats, so their homes are the furthest from a park or a garden.
Green space in European cities, capital by capital
Green space in European cities is measured by the European Environment Agency (EEA) from satellite and aerial maps of 2018. It reports three figures for each capital, each as a share of the city's area.
Total green is every surface covered by plants, private gardens and farmland inside the city boundary included. Public green space is only the part anyone can use, such as parks, public gardens, urban forests and cemeteries. Tree cover is the area under tree crowns seen from above.
Read the two green columns together. In Paris green covers 26% of the city, and 11 of those 26 points are public parks and gardens anyone can walk into. In Valletta green covers 17%, but public green space only 2%, so most of the green there is not open to the public. The average across all European capitals is 41% total green.
The greenest capitals are in the north and in the Balkans. Green covers 77% of Oslo, 74% of Zagreb, 67% of Ljubljana and 62% of Helsinki, and in Oslo trees alone cover 72% of the city. The EEA's own report notes that cities in the north and west of Europe have more total green space than cities in the south and east.
Where homes have the least green space, counting flats as well as parks
A city can be green on the map and still leave many homes without any green of their own. The last column of the table shows why. It is the share of people in each country who live in a flat, from Eurostat's 2024 housing survey. A flat rarely comes with a private garden, so a high share means more homes that depend on parks, balconies and windowsills for green.
Malta and Greece score badly on both measures. In Malta 63% of people live in a flat and Valletta is 17% green. In Greece 59% live in a flat and Athens is 17% green. Rome follows the same pattern, with 59% of Italians in a flat and only 3% of the city as public green space.
Spain shows the other side of it. At 65%, Spain has the highest share of people living in flats in Europe, yet Madrid is 53% green. Ireland is the opposite case. Only 10% of people there live in a flat, so most Irish homes are houses, which usually come with a garden, even though Dublin itself is only 35% green.
Why green space in cities matters for the people in those flats
Green space in a city is linked to health, not only to looks. The EEA states that exposure to green space benefits health by reducing mortality and illness from chronic diseases, and lists benefits for mental health as well. Those findings are about outdoor green space, the parks and trees you can walk to.
That is also where the limit of anything you do at home lies. A plant on a Valletta windowsill does not replace a park, and the EEA's findings do not cover houseplants. What a flat can do is make room for plants, and the next section is about where.
How to bring green into a flat with no garden
A flat with no garden has three places where plants can live, and each one asks something different of the plant. A windowsill gives the most light, a balcony adds fresh air and weather, and a wall uses space that is otherwise empty. The cards below compare them for a typical city flat in Rome, Paris or Amsterdam.
Green on a windowsill or balcony in a city flat
Light decides which spot works in your flat. On the shortest day of the year Valletta still gets 9 h 43 of daylight and Copenhagen 7 h 01, so the same windowsill plant has a much easier winter in the south. How much daylight each European city loses between June and December is set out city by city in the guide to houseplants in winter.
Green on the wall of a rented flat
A wall is the one place a small flat always has spare. Planted wall systems range from preserved moss panels to pockets that hold living plants, and how they differ is explained in the guide to the living wall.
Renters in Paris or Amsterdam often may not drill into the wall, which limits what can hang there. What each drill-free fixing actually holds once the soil is wet is covered in the guide to hanging plants without drilling.
Which plants suit a small flat in a dense European city
A flat in the centre of Rome, Paris or Athens usually means one bright window and darker corners further back. The plants that cope there are the ones that tolerate a range of light and forgive the odd missed watering, which is what the list of easy house plants is built around.
For the darker part of a flat, a north facing room in Amsterdam or a courtyard window in Barcelona, the choice narrows to species that hold up on little light. Those are compared in the guide to low light houseplants.
Where floor space is the problem rather than light, plants that trail from a shelf or hang from the ceiling use height instead. Hanging plants such as pothos and string of hearts suit a small flat for exactly that reason.
How we compared green space in European cities
Every figure on this page comes from two official European sources, and the one thing they cannot tell you is the green in your own street.
Conclusion - green space in European cities
The capitals with the least green space are in the south and east of Europe, led by Valletta and Athens at 17%, and Paris is the least green Western European capital in the EEA data at 26%. Where many people also live in flats, as in Malta, Greece and Italy, homes have the least green of their own.
If you live in one of those cities, the green you can add is on the windowsill, the balcony and the wall. Choose by light first, then by space, and treat the park down the road as something no plant at home replaces.
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