Showing homes with living walls, hedgerows and a central green space, the new image from Barratt has been produced as work has now got underway on the 6.6ha former hospital site.
The development will meet the highest level 6 of the Code for Sustainable Homes.
"This new CGI is very exciting because, for the first time, it shows visually the detail of many aspects we have been talking about since the start of this project," said Barratt managing director Richard Gregory.
A central pond will be home to wildlife and a footbridge will link Hanham Hall to meadows and allotments.
Homes have south facing balconies overlooking a large green space in the middle of the development.
The development is the first created as part of the government's Carbon Challenge initiative, which aims to help the housebuilding industry fast track a number of developments that reduce the impact on the environment; provide important lessons for delivering low carbon development; and encourage people to live more sustainable lifestyles.
Barratt worked on the plan with design-led housing and regeneration consultancy HTA.
The first of 188 homes will be completed over winter 2010/11.
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