Eco-Friendly Housing Calculator
Compared to a standard apartment in similar conditions, you have higher emissions.
When you think about reducing your environmental impact, where you live might matter more than you realize. It’s not just about recycling or using LED bulbs-your home’s structure, location, and shared systems play a huge role in how much energy you use and how many emissions you produce. So, is it truly greener to live in an apartment or a single-family house? The answer isn’t simple, but the data tells a clear story.
Energy use: Apartments win by default
Apartment buildings use far less energy per person than standalone houses. Why? Shared walls, floors, and ceilings. In a house, every surface is exposed to the outside-walls, roof, windows, foundation. That means more heat escapes in winter and more heat gets in during summer. Apartments, especially those stacked vertically, share those surfaces with neighbors. That cuts down on heating and cooling needs dramatically.
A 2023 study from the University of California found that residents of multi-unit buildings used 30% less energy for heating and cooling than those in single-family homes, even when accounting for size. A typical apartment dweller in Adelaide might use 1,800 kWh per year for climate control. A house owner in the same suburb? Around 2,600 kWh. That’s like leaving a 1,000-watt heater running nonstop for three months.
Land use and infrastructure: Density saves resources
One of the biggest hidden costs of living in a house is land. Single-family homes spread out. They need driveways, lawns, gardens, and space between neighbors. All that land could be used for trees, wildlife, or housing more people efficiently. Apartments pack people into smaller footprints. That means less clearing of natural land, fewer roads to build, and shorter utility lines.
Think about water and sewage. A house with a septic tank or a long driveway to the main sewer line uses more materials and energy to maintain. Apartments connect to centralized systems. Those systems are more efficient because they serve hundreds or thousands of people at once. One water treatment plant can handle an entire apartment block. Ten houses? Ten separate systems, ten times the pipes, ten times the maintenance.
Transportation: Location beats housing type
Here’s the twist: your housing type doesn’t exist in a vacuum. If your apartment is downtown, you’re likely walking, biking, or taking public transit. If your house is on the edge of town, you’re probably driving everywhere. Transportation accounts for nearly 20% of a household’s carbon footprint in Australia.
A 2025 report from the Australian Bureau of Infrastructure, Transport and Regional Economics showed that people living in high-density areas drove 40% fewer kilometers per year than those in low-density suburbs. That’s not because apartments are magically better-it’s because they’re usually near shops, schools, and bus routes. A house in the same neighborhood? Same benefits. But most houses aren’t built that way. They’re built on the fringes, where cars are the only option.
Materials and construction: Bigger isn’t better
Building a house uses more materials than building an apartment unit. Concrete, steel, bricks, timber, insulation-you need a lot of it for one standalone structure. Now multiply that by 100 homes in a subdivision. Compare that to one apartment building housing 100 people. The building uses the same amount of foundation, roof, and outer walls, but serves way more people.
Construction emissions are often overlooked. Producing cement alone creates 8% of global CO₂ emissions. A single-family home might require 100 tons of building materials. An apartment unit? About 30 tons. That’s 70% less material per person. And since apartments are often built in bulk, there’s less waste from leftover materials and fewer delivery trips.
What about sustainability features? Can a house be greener?
Yes-but only if you go all in. A house with solar panels, a rainwater tank, geothermal heating, and triple-glazed windows can outperform a standard apartment. But here’s the catch: most houses don’t have those upgrades. In Australia, only 18% of single-family homes have solar panels installed. In apartments? It’s trickier. Many are part of strata schemes, and getting approval for solar panels or insulation upgrades takes time and money.
Still, newer apartment complexes are starting to include green features. In Adelaide, buildings like The Edge and The Haven now come with rooftop gardens, shared EV chargers, and energy-efficient boilers. These aren’t luxury add-ons-they’re standard. Meanwhile, older houses, which make up the majority of housing stock, often still have single-pane windows, drafty doors, and outdated heaters.
Waste and consumption: Who uses more?
People in houses tend to own more stuff. Bigger spaces mean more rooms to fill. More storage means more buying. Studies from the University of Melbourne show that households in detached homes consume 25% more goods and services on average than apartment dwellers. Why? Space encourages accumulation. A 3-bedroom house with a garage and backyard invites you to buy a lawn mower, a BBQ, a shed, a second fridge, and a kayak.
Apartment living? You’re limited. No yard means no lawn care equipment. Smaller kitchens mean fewer appliances. Shared laundry rooms mean you don’t need a washer and dryer. Less space = less consumption. And less consumption means less waste, less packaging, and fewer emissions from manufacturing and shipping.
The bottom line: Apartments are usually greener-but context matters
On average, apartment living has a 35% smaller carbon footprint than living in a single-family home. That’s based on energy use, transportation, materials, and consumption patterns. But this isn’t a rule. A small, well-insulated, solar-powered house in the city could be greener than a poorly managed high-rise with old elevators and no recycling.
Here’s how to think about it:
- If you live in a new, energy-efficient apartment near public transport-you’re making one of the greenest choices possible.
- If you live in an old, poorly insulated apartment with no upgrades-you might be better off in a retrofitted house.
- If you live in a large, far-out house with a gas heater and no solar panels-you’re probably the least eco-friendly of the bunch.
The real takeaway? It’s not about the building. It’s about the system. Shared infrastructure, reduced travel, and efficient design win every time. If you’re choosing between an apartment and a house, pick the one that cuts your energy use, your driving, and your consumption. The planet doesn’t care if you have a backyard. It cares if you’re using less.
What if you already live in a house?
You don’t have to move. You can make your house greener. Start with insulation-adding ceiling and wall insulation can cut heating bills by 40%. Install solar panels. Switch to LED lighting. Use a smart thermostat. Plant native trees for shade. Fix leaks. These steps don’t require moving. They just require action.
Are apartments always more eco-friendly than houses?
Not always, but usually. Apartments are more eco-friendly on average because they use less energy, require fewer materials to build, and encourage lower car use. However, a well-designed, solar-powered house in a walkable neighborhood can have a smaller footprint than an old, poorly maintained apartment in a high-rise with inefficient systems.
Do apartments use less energy than houses?
Yes, significantly. Shared walls and ceilings in apartments reduce heat loss and gain. A 2023 UC study found apartment residents use about 30% less energy for heating and cooling than people in single-family homes. In Adelaide, that translates to roughly 800 kWh saved per person each year.
Is it better to live in the city or suburbs for the environment?
Living in the city is almost always better for the environment-not just because of housing type, but because of transportation. City dwellers drive 40% fewer kilometers per year than suburban residents, according to a 2025 Australian transport report. Public transit, walking, and biking become viable options, cutting emissions dramatically.
Can I make my house as eco-friendly as an apartment?
Yes, but it takes effort. Add insulation, install solar panels, switch to electric appliances, use a smart thermostat, and reduce car use. A retrofitted house with these upgrades can match or even beat the efficiency of a standard apartment. But most houses aren’t upgraded this way-so apartments still win on average.
What’s the biggest factor in reducing my carbon footprint at home?
Transportation. How often you drive matters more than whether you live in a house or apartment. After that, energy efficiency in heating and cooling. Then, the amount of stuff you buy and use. The best way to reduce your footprint? Live closer to where you need to go, use less energy, and consume less.
