The Management Team

David Whitestone


B.A. (Hons), Dip. Arch, RIBA


David joined the practice in 1986.

He has extensive experience in a wide range of building types, all of which have involved careful consultation to ensure designs which both meet our client's aspirations and provide technically and functionally efficient solutions.

David has specific expertise in the healthcare, residential and laboratory sectors. Healthcare work has involved both public and private facilities, providing a full range of clinical, diagnostic and treatment facilities. Residential projects have included public housing, housing association and residential regeneration schemes, sheltered apartments and key worker accommodation. University and hospital laboratory projects have provided academic and medically-related facilities for innovative research and the latest analytical techniques in pathology, microbiology and biochemistry. David also has wide experience of listed buildings and their sensitive conversion to new residential and medical uses.


David is a member of the Clapham Society Planning Sub-Committee and when he gets a chance is busy currently converting a French tobacco barn near Bergerac into a family home.

Hal Jones


BSc. (Hons), B.Arch, RIBA

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Hal joined the practice in 2018.

Previously a Partner at Ansell and Bailey, a specialist healthcare architecture practice, Hal became established with many repeat business clients within the medical sector, and accomplished with invaluable practice and business management skills to complement his 20+ years within the construction industry.

From initial briefing to contract administration and site inspections, Hal has extensive experience of all project stages.

Passionate about working with people and problem solving to maximise efficiencies and quality, Hal greatly enjoys, delivering projects and building the relationships needed for successful outcomes.

Hal has almost 12 years’ experience within the London health sector and has built a wide contacts network ranging from capital facilities clients and clinical clients to project managers, surveyors, engineers, specialist consultants, medical equipment suppliers and main contractors.

Applying sustainable principles is key to Hal’s working methodology, developing solutions for clients to give great value to both capital and life cycle targets. As well as practicing sustainability in architectural design, Hal’s experience includes work as both a BREEAM assessor and BRE accredited professional.

Iain Wadham

Project Director

BA (Hons), Dip. Arch, RIBA


Iain joined Floyd Slaski in May 2021 with over 25 years of widely varying experience ranging from fabrication to being framework lead on the Houses of Parliament. Much of his London experience has concentrated on the design and delivery of mixed use and commercial projects in the West End; he loves the challenge of complexity, and uses his mechanical bent to navigate pathways through planning and delivery stages alike.

Jane Lawson

Practice Manager


Jane joined Floyd Slaski in 1993  - where did the years go!

She ensures the smooth and professional running of the office and deals with all financial, administrative, marketing and HR matters.  Jane enjoys the  diversity of tasks that she encounters working within an architectural practice, life is never boring.

Jane deals with all Quality Assurance ISO 9001:2015 matters on projects and is the Project Evaluation interface between the Practice and Clients.


Laura Olteanu


M.Arch (Hons), Dip.Arch


Laura joined Floyd Slaski in March 2019 bringing broad experience from various sectors and scales and was made an Associate in December 2019.  A good listener and team player, Laura enjoys finding the best solutions in different circumstances.  Having a logical approach helps her to be in control leaving few things to chance. 

Bruce Sounes
B.Arch, Dip.Arch


Bruce joined Floyd Slaski in August 2021 and has over 20 years practice experience in various sectors and scales of work and is fully proficient in Revit, AutoCAD and Microstation as well as many other applications.   Bruce has experience in all project phases (RIBA Stages 0-7) and has worked as Project Architect, Contract Administrator and Employer's Agent and has experience of design, technical design / specification, construction as well as bidding and practice management.

Maria Assirelli
Senior Associate
M.Arch, Dip.Arch

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Maria joined Floyd Slaski in March 2022 and has a passion for designing healing environments and she leads on Floyd Slaski’s mental health portfolio. Previously a Partner at GA architects, Maria specialised in design for autism friendly environments and has written papers for various groups including the National Autistic Society. With a positive attitude, understanding of team dynamics and personal dynamics and great communication skills, Maria has a real desire for learning, teaching, research of new trends and lecturing at conferences.


Floyd Slaski was established in 1952, by architects Michael Floyd and Peter Slaski.


Peter Slaski 1925 - 2018

Peter meeting the Queen at the opening o

Peter meeting the Queen at the opening of the King Edward VII hospital that was designed by Floyd Slaski and Partners.

Peter Slaski was born in Warsaw, Poland on 28th June 1925 and had a normal childhood until Poland was invaded by Germany on 1st September 1939 and was later occupied by Russia. Consequently, Peter and his family were sent to a Russian labour camp in Siberia where he spent two years before joining the Polish army which formed as a consequence of political changes caused by the German invasion of Russia.

Soon after, he was evacuated with the army to Iraq where he was hospitalised for malaria, weighing only 5 stone. Once recovered he moved around the Middle East: Iran, Iraq, Palestine and Egypt. During this period the army was fully equipped and trained in order to prepare them for the Italian Campaign. Furthermore, Peter’s bravery in the Battle of Monte Cassino saw him awarded the Military Cross.

After the war Peter settled in England where he studied building, architecture and town planning. After qualifying as an architect, he spent several years working in private architectural practices as well as becoming chief architect for A.E.I (Associated Electrical Industries). In the 60’s Peter became senior partner at Floyd Slaski and Partners which specialised in the design of hospitals, schools, motorway service areas and housing both in the UK and abroad.

Peter had always shown an aptitude for art but only started actively pursuing it whilst he was a practising architect. He is self-taught but spent much of his time attending painting courses in the UK, France and Spain. Since his retirement, Peter also attended classes at Putney School of Art and was a fellow of Chelsea Art Society where he took part in exhibits every year. He worked with oil, acrylic, watercolour and pastels and his subjects included portraiture, landscapes, still life and life.