Roger Dellar ROI, PS, RI
- The Royal Water-colour Society, at the Bankside Gallery.
- The Pastel Society.
- The Royal Society of Marine Artists.
- The New English Art Club
- The Royal Institute of Painters in Water-colour.
- The Royal Institute of Oil Painters.
- The Royal Society of Portrait Painters.
- The Royal Society of British Artists, all at the Mall Galleries London.
- The Singer & Friedlander/Sunday Times Watercolour Exhibition.
- The Royal West of England Academy, at Bristol.
- The Royal Academy, London.
- Dedham Hall Dedham Essex.
- The Watershed Studio, St Osyth, Essex.
- 1996 elected a member of The Wapping Group of Artists.
- 1997 elected a member of The Chelsea Art Society.
- 2000 elected a member of The Langham Sketching Club.
- 2001 elected a member of The R.I. (The Royal Institute of Painters in Water Colour).
- 2002 elected to R.I. Council.
- 2003 elected to The Pastel Society. 2008 elected to Council. 2011 Vice President.
- 2006 elected an Associate of The ROI. (The Royal Institute of Oil Painters).
- 2008 elected full member of the ROI. 2009 elected ROI Council.
- 2011 Honary President of Haslemere Art Society.
- 1997 Invited Artist in Residence for the Petersfield Music Festival.
- 1996 – 1998 Artist in Residence at Petworth House. 2005 Festival of the Sea Artist.
- 2005, 2007,2009, 2011 Invited Artist in Residence for Guildford International Music Festival.
- 1999 & 2005 R.O.I prize winner Non-Member painter award.
- 2000 Pastel Society Annie Longley award.
- 2000 Royal Watercolour Society Abbott & Holder Travel Award.
- 2002 R.O.I. The Stanley Grimm Award.
- 2003 Pastel Society Unison Pastel Award.
- 2003 R.I. Llewellyn Alexander Award.
- 2004 & 2006 Pastel Society Daler Rowney Award of Excellence.
- 2009 ROI Cornelissen Prize for Painting.
- 2010 Pastel Society Ranelagh Press Award.
- 2010 The Bath Prize Best Oil Painting.
- 2010 ROI Le Clerc Fowle Medal.
- 2011 Pastel Society Unison Pastel Award. 2011 Pastel Society Anthony J Lester Art Critics Award 2011 Pastel Society The Arts Club Award.
- 2011 ROI DAS Group Award for a work of Distinction.
- 2011 Honary Mention Prize Plein Air, Easton USA.
- 2013 Pastel Society Caran Dache Main Sponsors Award.
- 2015 ROI Cornelissen & Son Prize for Painting.
- 2015 ROI Dartington Crystal Chalice Award.
- Featured in WATERCOLOUR INNOVATIONS by Jackie Simmonds.
- Contributor to the Artist Magazine. Artist and Illustrator Magazine.
- Has work in collection of Surrey University.