Sandar Andara integrates sustainability into modern home living—or what we call a Responsible Home-Munity. Four main features to promote the preservation of a thriving environment, implemented in six private family homes. 


- Waste Management and Recycling System

Jakarta is one of the biggest contributor in global waste, producing 7,200 tonnes--that's equivalent to 22 Boeing 747 planes--of waste. With separation at every house, we can prevent up to 85% of waste from ending up in landfills. 55% of household waste are organic waste (such as food scraps, dry leaves). Sandar Andara has a compost pit where organic waste are converted into compost that can be used to fertilize soil and plants in the surrounding gardens. 30% of waste are inorganic, which will be sent to nearby recycling site, while the remaining 15% goes to the landfill.

- Rainwater Harvesting System

Sandar Andara installs rainwater harvesting system in every unit. Rain water that falls on the roof are streamed to the roof terrace that has two roof drains. The water then flow through pipes into a natural purification dry pool which contains different layers of gravel and vetiver plants. Some of the water also goes into Sandar Andara's local absorption wells. After the purification system, the now clean water are collected in a tank under the front terrace, and can be pumped back into the third floor water tank to be reused.

- Productive, Edible and Vertical Garden

To support the goal in becoming a responsible housing, one of Sandar Andara’s responsible features is Edible & Productive Garden. With this feature, Sandar Andara aims to give benefit to its residents and the surrounding environment. Collaborating with Vasastudio for landscape design, open spaces surrounding the houses in Sandar Andara will grow productive plants that don’t only serve aesthetic functions, but also contribute to better air and soil quality, as well as provide fresh produce for the residents. 

Vasastudio chose a wide range of productive plants, from herbs like pandan and ginger, edible climbers like passion fruit and cincau, to nitrogen fixers like rain tree and pinto peanut. Vasastudio also combines cajuput (kayu putih) trees with a duet of vetiver-lemongrass spikes (that also serves as insect repellants), and an accent of monstera that climbs the cajuput trunk.

- Responsible Design (Passive Energy Design System) 

The building uses wooden screen facade that filters up to 50% of direct sunlight, while
adding more privacy at the same time. Large openings on ground level optimize natural light and offers relaxing garden view. Above the stairway, skylight is added so more natural light can come through to reduce the need for artificial light during the day. On the third floor, a roof terrace creates space, offers natural light, and circulates the air in all the rooms on this level.

To optimize air circulation, Sandar Andara applies cross ventilation. Openings such as windows, vents, and doors placed on opposite sides of the building ensure natural breeze to flow through continuously. Pressure difference on both sides of the buildings will push cool air into the house from one side, and pull warmer air out of the space from another side. With good air circulation, we can use less air conditioning and reduce energy consumption.

Wooden screen as the building facade allows fresh air to flow through, and at the same time maintains the residents’ privacy.