To provide some background, I had been invited to take a look at a piece of land at Kaiwhaiki Pa that had a decades-old development plan but some serious seasonal drainage issues.
The existing plan indicated a grid-type layout of homes across the property, including the low areas. From what I recall there was also a decade-old quote for a drainage project that would cost about $500,000.
From my perspective this was a case of trying to fit a square peg into a round hole. Sure, it could be done, but at what cost? Engineers will tell you: "We can do anything with enough money."
But a suburban-style development on that piece of land would be unnecessarily expensive, unnecessarily destructive to the environment, and, from my scant knowledge of traditional Maori settlements, culturally inappropriate. The 'burbs are a Pakeha invention. Maori lived in villages.
From my perspective, the existing plan represented a lose-lose-lose situation. This is the opposite of the way I think and design, so naturally I had some ideas to put on the table based on my philosophy of eco-design, which is holistic, co-operative and adaptive.
From a holistic perspective, the drainage problem could be dealt to in several ways. First by looking up the watershed and determining in what ways biology (trees and shrubs) could be used to decrease runoff. Next, a number of "gentle" erosion control methods could be used to slow the flow of water by dissipating its energy. Finally, if part of the land wants to flood seasonally, let it.
By clustering the homes into a village setting on the highest part of the section, hundreds of thousands of dollars could be saved on vast drainage works. And cluster housing reduces the costs of roading, water and sewage pipes, power lines, and even building materials because when two homes share one wall, each family need pay for only three and a half walls instead of four. Their heating costs will be reduced because each home would have only three external walls. In other words, the two homes warm each other with an awhi, hug.
The design strategy is co-operative at every level. Not only does it involve the pa trust working with the council, but also it involves humanity working with nature instead of against it. This is the heart of eco-design. The design strategy is adaptive because each group mentioned in the article - Kaiwhaiki, Marangai, and Putiki - will have different wants and needs, and each piece of land will have its special character that must be honoured.
Such developments in our district could become the new best practice for papakainga throughout Aotearoa, and iwi from across the land would visit to learn how they could adapt such an approach for themselves. Now that is exponential.
Nelson Lebo is an eco-design and education consultant. He and his wife, Dani, recently renovated an abandoned villa in Castlecliff into a healthy, energy-efficient, beautiful home with abundant organic gardens. theecoschool@gmail.com - 3445013 -
www.ecothriftydoup.blogspot.com
