Lamb Drove, Residential SuDS scheme, Cambourne

How many affordable homes were built by the Cambridge Housing society

35

How big was the site

One hectare

What measures were put in for sustainable development

* water butts
* permeable paving
* a green roof
* swales
* filter strips
* detention and wetland basins
* a retention pond

What was the driving force of this project

growing pressure for new housing in the UK

Cambridgeshire in particular is a key growth area under the government’s housing strategy, with up to _____ new houses planned to be built by ____.

50,000 2016

The project was part of what programme

European funded programme (FLOWS)

How many projects were featured in FLOWS

Germany, the Netherlands, Norway, Sweden and the UK.

when was Lamb drove whose for this project

2004

Who were the drainage consultants

Royal Haskonin

The use of ____ ___ __________, including adjacent, off-site open spaces, provides a viable solution to the problem of accommodating softer landscaped SuDS within housing developments.

Public open spaces

Give three benefits of the projects

* Substantial improvement in the biodiversity, ecology and subsequent quality of life at Lamb Drove compared to typical residential developments.
* The use of SuDS has resulted in an improved quality of water leaving the site compared with traditional piped drainage systems.
* the estimated cost savings due to SuDS is approximately £11k (around 10%). In addition, each house will have two water butts to collect rainfall from the roof, which can be used for watering gardens and other applications for which rainwater is suitable.

Give some issues with the project

\-The full attenuation of the 1 in 100 year storm within the development site boundary is both costly and difficult to achieve without the use of multi-use open spaces (e.g. public open space).

\-Input of specialist SuDS drainage expertise was effective from the FLOWS team but there needs to be wider understanding and expertise amongst other stakeholders.

 

Why were there initial concerns for safety. Why?

There would be lots of standing water in the system

How were safety concerns resolved

ROSPA (Royal Society for the Prevention of Accidents) undertaking a very successful and transparent safety audit,

How have residents been educated about the SuDS

In order that residents and wider community are aware of the SuDS measures at Lamb Drove they have all been presented with information on the system. In addition a site interpretation board has also been erected on site

Main point of what Lamb Drove has achieved

The Lamb Drove site has attenuated surface water flows, significantly reduced peak flows have been observed when compared to the Control Site,

It has also significantly increased the local water quality