Welcome to our website for the redevelopment of Clarendon Gasholders and Olympia Trading Estate at the Haringey Heartlands.

As you may be aware, the site already has an historic planning consent for over 1,050 homes, granted in 2012 but conceived back in 2009.

During 2016 we were busy working to get these plans ready to build. But a lot has changed in the last year – and indeed since 2012 – and it has become clear that the proposals need to evolve to keep pace with changes in the area.

Right now National Grid are remediating the site, so we can’t start any building work until early 2018. This gives us time to make changes to our plans. It is one of the first major developments in the area and one of the largest, so it’s important that we get it right. Given that the land is in single ownership, it is capable of being delivered together.

We appreciate that this is an important site in Wood Green and there is a lot of interest in its future. We held two public exhibitions on our plans, the first taking place in February 2017 and the second in June 2017, at which we received helpful and constructive feedback from the local community. You can download the exhibition boards that were displayed, as well as the newsletter invitation we sent out, below.

After taking time to consider the comments received at June’s public exhibition we intend to submit a planning application later in the year. We will ensure that the local community and this website is updated with further information about the application once it is available.


‘Building L’

Between our public exhibitions in February and June 2017 we secured a ‘Reserved Matters’ permission for a plot of land towards the middle of our site, adjacent to the railway line, called ‘Building L’. This confirmed the materials, layout and landscape that we will use in this small area of the scheme.

We sought this permission for Building L because we are committed to starting work on site as soon as we can. At present National Grid is working to prepare the site for redevelopment. This process is due to be complete in early 2018, so we have time to look at things afresh.

About St William

St William is a joint venture between the Berkeley Group and National Grid, set up in 2014 to deliver homes and places on redundant gas sites.

A passion for quality influences everything we do – from the materials we use to the way we serve our customers. From the quality of design to the quality of build, and the quality of service to the quality of place. Our real expertise lies in bringing forward complex sites and turning them into fantastic places.

Haringey Heartlands Consultation
15b St George Wharf

T: 020 8608 5878
E: haringeyheartlands@stwilliam.co.uk

For further information on National Grid’s ongoing remediation process for the Clarendon gasholders, please visit