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ACN Webchat - Friday 13 November 2020

Redefining quality in our residential design


Maribel Mantecon - HTA

Jonathan Schifferes - GLA

Thomas Vandercasteele - Legendre UK

Time; 8.15 - 9.15am

How do we go about defining quality in our residential design? Is it something that is accessible, flexible, adaptable, low carbon or constructed using modern methods of construction? Is a single family dwelling built to Passivhaus quality standards, but then sold as a second home and left empty for eleven months of the year, truly sustainable? Has the COVID 19 pandemic make us reassess the way we use our homes as places to live, work and educate ourselves and the typologies we provide? Will the changes to permitted development rights have a detrimental impact on quality.

Come and join us for our RCN webchat where we will ask these and other questions relating to the quality of our housing provision both existing and to be constructed.


Maribel Mantecon

Maribel’s architectural interests include modular construction and sustainable architecture focusing on the current housing shortage whilst aiming to ensure that quality, beauty and ‘joy’ is retained in what we build.

Maribel’s experience in the housing sector is broad giving her an overview that is a key asset —especially at formative project stages. She has a strong understanding of the development potential and planning possibilities for new sites as well as having valuable commercial awareness and solid construction experience including MMC.

Maribel is currently working on Phase One of Meridian Water, Enfield's' council £6 billion development, the first phase of which will result in approximately 1000 new homes.

Thomas Vandecasteele
Legendre UK

Thomas is dual-national holding a UK and French passport. He graduated with a MSc in Engineering and a further MBA from the London Business School. He worked in the industry for 15 years, mainly in the UK, across a variety of job ranging from operation to design management and pre-construction.


He joined Legendre at the beginning of 2018 as the Managing Director, to grow its UK business in the residential and commercial sector. Over the years, he has developed excellent connections with clients and the local supply chain in London.

Jonathan Schifferes

Jonathan is a Senior Area Manager, overseeing housing investment with housing associations, private sector developers and local authorities in North West London, including the Old Oak Park Royal Development Corporation. Jonathan joined the GLA in 2018, having worked as a planning consultant and then as Associate Director of Public Services and Communities at the Royal Society for the Encouragement of Arts, Manufactures and Commerce.


Jonathan has extensive experience in impact evaluation and social research in the built environment sector, having worked with British Land, The Crown Estate, Workspace Group, Shelter, Asda and John Lewis Partnership. Jonathan was research lead on the influential City Growth Commission and has authored a number of articles and reports and delivered keynote speeches at national and international conferences, covering issues from local economic development to real estate investment through public sector partnership.