Ricochet News

Eco-building trend sweeps SA

MAY 31, 2017
Eco-building trend sweeps SA

A new trend of merging developments with ecologically sensitive building best practice is fast taking root across the country, as businesses see the long-term benefits of “going green” against a backdrop of rising energy costs and dwindling water supplies.

Green-rated buildings are putting companies on the map in terms of both physical presence and eco-friendly footprint, while eco-aware architecture is rapidly becoming en vogue, according to one of South Africa’s oldest architectural firms, SVA International.

Public and industry perceptions aside, the trend has real financial implications for investors too. Analysts point to the long-term financial savings, saying the average five to 20% greater capital outlay for such developments must be considered against the landscape of electricity scarcity and the energy savings the building will make over time.

Additionally, research shows that the developments tend to attract higher-end tenants, and are more pleasant to work in, operate from or live in.

According to Ann-Mari Malan of green building consultancy firm AGAMA Energy, the sustainability aspects implemented in green building projects have a positive environmental and financial impact.

“Given the high energy costs and water scarcity in South Africa, implementing green building practices sends out a strong message about an organisation’s commitment to sustainability whilst promoting a positive image with stakeholders, customers and employees,” she said.

CASE STUDY

A recent example of the trend is a three-storey ecologically sensitive development located on the banks of a 32 000m3 rehabilitated wetland.

Set against the backdrop of Somerset West’s Helderberg Mountains with sweeping ocean views, The Sanctuary is a work-shop-play, mixed-use retail and office development. Opened in October last year by Abacus Development Company, it was brought to life by SVA International’s Cape Town office.

Aptly named, The Sanctuary aims to minimise the impact of its presence on the environment, while gently encircling the storm water retention pond that lies at its heart.

“Architecturally speaking, the centre combines a contemporary aesthetic with the highly textured building materials synonymous with the Cape Winelands,” said SVA International associate, Bruce Wilson. “The form of the building was largely determined by the mix of uses required of the site and their relation to the natural elements of water, sun, wind and mountains.”

SHEDDING (NATURAL) LIGHT ON THE TOPIC

Natural light is becoming an integral component for new developments, too – not just to save on spiralling electricity costs, but also because research has shown it adds to the wellbeing of the tenants.

The triple-volume central atrium and three-storey mall at The Sanctuary make maximum use of daylight and fresh air, with opaque roof lights on the perimeter of these spaces diffusing natural light throughout the interior, while controlling for glare and solar heat gain, said Wilson.

“The design concept was entirely focused on providing users with a generous, well-lit, comfortable and convenient place to shop, work, eat and exercise (at the two-storey Virgin Active),” he said.

ENVIRONMENTAL REHABILITATION

The featured pond is the result of a team effort by a botanist, freshwater specialist, landscape architect and civil engineer to design a habitat rich in biodiversity potential, while meeting regional and site-specific stormwater drainage requirements.

Formerly a polluted water body, with typically degraded flora and fauna, the pond has been subjected to an extensive water and landscaping maintenance programme, which included the removal of more than 5 000m3 of polluted soil. The programme is already showing signs of success as the pond teems with frogs, fish and insects, and the birdlife is steadily returning.

SUSTAINABLE ELEMENTS

“Because water is at the heart of this development, it is also a key element of the sustainability features. Rooftop water tanks have been installed on every block to supplement the fresh water supply, while water-efficient sanitary systems have been used throughout. Grey water and rainwater is recycled for sanitation and irrigation purposes,” said Wilson.

“The careful management of energy consumption within legislated requirements is another green building intervention, with a number of active systems installed, such as waste heat reclamation systems and tenant heat pumps to meet the demand for hot water.”

WINNING RECIPE

The Sanctuary’s retail anchor tenants and several of the restaurants are currently trading above expectation, indicating a positive public response to the development, said Wilson.

“Its success lies in the confluence of several factors, such as the growth in the adjacent residential market, the physical situation of the development, and the environmentally sensitive architectural response to it,” he said.