Completed in 2026 in Maharashtra’s hot, dry climate, the 650 m² Anthill House in Ahilyanagar uses brick jaalis and shaded patios to reduce reliance on mechanical cooling in extreme heat. Vertical shafts also help move air through the home. Designed by Kaushal Suresh Tatiya and Sweety Muttha, the house draws on termite mounds’ ventilation logic, but its published documentation provides no measured results on comfort or energy savings.
Kaushal TaTiya Architects built Anthill House with one aim: to reduce the need for mechanical cooling in a region where summer heat can be dangerous. The design borrows termite mounds’ ventilation logic, not their appearance. Inside a compact brick shell, patios and vertical shafts work with perforated jaalis (brick screens) to move air and create shade. The layout pushes hot air out and draws cooler air in from below.
The real test, though, lies beyond the plans. The architects’ documentation on ArchDaily describes the strategies, including stacked terraces and shaded courtyards. It also lists water features and exposed brickwork, but provides no measured results. There are no temperature readings or energy-use charts, and no carbon analysis. The promise remains theoretical: less heat enters, more escapes, and air conditioning is used less. Whether this leads to real savings remains unproven.
India’s demand for cooling is rising fast. The International Energy Agency reports that cooling accounted for 15% of the country’s electricity demand growth from 2021 to 2025, with projections above 20% for the next five years. Anthill House is intended as a response to this trend, but without data, it cannot show that it reduces reliance on the grid.
Inside the Anthill
The design links rooms through patios and corridors, guiding air while blocking direct sunlight. The jaalis let breezes through and soften the sun’s glare. Patios and skylights bring in daylight without exposing the interiors to harsh heat. Materials are left unfinished, including brick and terracotta. Lime plaster is also used, alongside local stone and textured concrete. This reduces the need for extra finishes, but does not automatically mean a lower environmental impact.
Vertical shafts and skylights work as thermal chimneys, letting hot air escape from above. This stack effect is basic physics: as warm air rises, it leaves through upper vents, drawing cooler air from shaded lower areas. Bedrooms have small windows and balconies for cross-ventilation, but how well this works depends on wind and timing. The precise location of the openings matters too. Moving air does not always mean cooler air.
Limits of Passive Cooling
The living area has a courtyard with a water feature intended to cool the air through evaporation. This works only when humidity is low; in humid conditions, evaporation slows, and the water needs constant refilling. Without on-site measurements, it is not possible to say how much the feature cools the space.
Thermal mass is another strategy. Exposed brick can absorb heat during the day and release it at night, but only if it is shaded and the house is ventilated after sunset. A wall exposed to the sun all afternoon may stay hot well into the evening. The benefit depends on orientation and wall thickness. It also hinges on how much temperatures drop at night. As the Australian guide Your Home points out, thermal mass cannot replace insulation or active cooling.
What Remains Unanswered
Anthill House is an example of passive design, but it does not show that brick homes can forgo air conditioning entirely. The architects’ report describes intentions, not results. It offers no data on indoor comfort or energy use, and no carbon footprint figures. For a project aimed at addressing one of India’s fastest-growing sources of electricity demand, this is a major gap.
As with other nature-inspired ideas, the real effect depends on context. A design that works in Maharashtra may not work in Spain or elsewhere with different humidity or wind conditions. Temperature patterns also matter. Without measured results, there is room for doubt and for further testing.
Anthill House’s approach is ambitious, but it is not alone in looking to nature for solutions. As reported earlier, even the structure of common plants can inspire new ways to manage heat and pests in buildings. But inspiration is not proof. Until projects like Anthill House publish hard numbers, their value lies as much in architectural ideas as in tested performance.
