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About us
Our story
1980
Darroll K Harrison

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’.

Typewriter

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.

Darroll Harrison Partnership

1987

The partnership was formed.

1990

1990

10 year anniversary.

Practice expands to deliver further consultancy services.

1993

Darroll Harrison retires leaving four Partners.

Women's ‘no trouser policy’ abolished.

The RAC

1997

New clients include British Airways, Thames Water, Procter & Gamble and the RAC.

Our website in 1999

1999

Our first website goes live.

Practice expands to offer the full interdisciplinary services we offer today.

2000

2002

New long term client partnership developed with Diocese of Arundel and Brighton.

Facilities Logo

2003

Our facilities management service is launched.

European Medicines Agency

2004

Our first OJEU government tender success is with the European Medicines Agency (EMA).

25th Anniversary

2005

25 year anniversary celebrations.

2006

Office move to our current premises.

St John Fisher Primary School, Harrow

2008

Our first new build schools open.

St John Fisher Primary School, Harrow £7.4m
Sacred Heart Catholic School, Ruislip £7.2m

2010

2010

First long term framework agreements secured.

New dhp branding

2014

Record value of new commissions.

dhp rebranding launch.

35th Arriversary Party

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.

St. Richard Reynolds Catholic College

2017

Our largest project completed to date. £27 million new build and refurbishment for the new St. Richard Reynolds Catholic College, Twickenham.

The Winston Churchill School Discovery Space

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.

Today
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