The Beginning
Darroll Harrison set up his chartered building surveying company, Darroll K Harrison & Associates, on the upstairs landing of his house with his wife Vera doing the books.
The company turned over £1,272 in the first year.
Key clients Canon and Royal Mail commission work from ‘Darroll K Harrison & Associates’.
1984
All drawings were done in pencil, with letters passed to the secretary to be typed on an electric typewriter.
The Diocese of London becomes a key client and remains a client today.
1985
New key client the Archdiocese of Westminster.
1986
We began working with the Government Property Services (PSA). This contract was a fundamental success to the growth of the practice.
1987
The partnership was formed.
1990
10 year anniversary.
Practice expands to deliver further consultancy services.
1993
Darroll Harrison retires leaving four Partners.
Women's ‘no trouser policy’ abolished.
1997
New clients include British Airways, Thames Water, Procter & Gamble and the RAC.
1999
Our first website goes live.
Practice expands to offer the full interdisciplinary services we offer today.
2002
New long term client partnership developed with Diocese of Arundel and Brighton.
2003
Our facilities management service is launched.
2004
Our first OJEU government tender success is with the European Medicines Agency (EMA).
2005
25 year anniversary celebrations.
2006
Office move to our current premises.
2008
Our first new build schools open.
St John Fisher Primary School, Harrow £7.4m
Sacred Heart Catholic School, Ruislip £7.2m
2010
First long term framework agreements secured.
2014
Record value of new commissions.
DHP rebranding launch.
2015
DHP 35 year anniversary party.
Finalist at the LABC Awards for the ‘Best Educational Building’ for the south wing redevelopment at Bucks New University.
2017
Our largest project completed to date. £27 million new build and refurbishment for the new St. Richard Reynolds Catholic College, Twickenham.
2018
Completion of The Winston Churchill School discovery space. A state of the art planetarium and library facility, the first of its kind in a UK state school and only one of two in a UK school.
Shortlisted for ‘Inspiring Learning Spaces’ for the Winston Churchill Discovery Space at the Education Estates Awards.