Giant hedge frames modern house in Nakano

I love this giant hedge framing a modern house in Nakano. It’s even more beautiful at night, which is when we discovered it on a walk through the neighborhood.

The house is mostly concrete with wood on the second floor balconies and some bamboo as a screen for the ground floor. I love how the hedge opens up to provide an entrance to the house (and a permeable parking space). The outer hedge is then echoed by a shorter inner hedge close to the ground floor windows. On the right side, there’s a small gap and room to park a few bicycles. It’s a great combination of privacy and opening, concrete structure and plant life.

I like how the gardener has used bamboo poles to train the hedge into an arch over the entrance. It’s a simple and elegant support.

Viewed from the side, the house disappears behind the thick greenery. Usually I am a fan of much greater plant variety, but this residential garden shows how much can be achieved with a single species.

Squeezing mini-creek into San Francisco sidewalk

I am amazed by this illustration of how to squeeze a mini-creek into a San Francisco sidewalk (from the wonderful Streetsblog). Faced with an aging sewage infrastructure at risk of failure, San Francisco’s water utility is experimenting with bold, low-impact designs, including green roofs, daylighted creeks, rain barrels, and permeable pavement.

The obstacles to this change are enormous. For decades, urban water management has meant removing green space and channeling water into treatment plants. But if successful, mini-creeks and urban watersheds can significantly reduce sewage discharge to the city’s bay and rivers, with estimates ranging from 28% reduction to 91% reduction in water pollution.

In addition to the functional benefits of reduced pollution, mini-creeks will add beauty to what are now life-less streets, and attract wildlife and nature. Restoring creeks will provide a greater connection to the natural environment and urban history.

Real estate ecology

Mitsubishi Estates, one of Japan’s largest real estate companies, has created a comprehensive plan for the downtown business district of Otemachi-Marunouchi-Yurakucho, where it owns one third of the land.

Mitsubishi Estates’ size and ecological principles lead the company to think beyond the scale of individual buildings. District heating, cooling and hot water systems provide energy efficiency for 65 buildings. Rooftop greening lowered summer temperatures 25 degrees celsius compared with concrete slab roofs, mitigating the heat island effect. Other efforts to lower the summer temperatures include sidewalk sprinklers, street trees, vertical gardens, and permeable sidewalks and roadways.

I am impressed that Mitsubishi Estates is not only improving the environment and efficiency of its own buildings, but taking a leading role in improving the city’s environment. Working on the district level, Mitsubishi Estates relates their greening efforts to a larger goal of using their district to connect cooler breezes from Tokyo Bay across the office towers and into the Imperial Palace grounds and other parts of central Tokyo.

• Mitsubishi Estates Creating Communities Known for Their Environmental Harmony (pdf 1.1 MB)