House Sales, Private & Iconic Collections

A Year in Review | 2025

The Year at a Glance

1700+ lots 5600+ registrations on bonhams.com*

*excluding aggregator platforms

A Modern Antiquarian The Collection of Graham Slater Part I & II

The Contents of Kerfield House

Downton Abbey: The Auction

Lady Glenconner, My Life in Objects and A Farquhar Legacy

Selected Items from the Collection of The 17th Earl & Countess of Perth

100% sold by value

With exhibitions in both Edinburgh and London Selected Items from the Collection of The 17th Earl & Countess of Perth

"In selling a collection inherited from my grandparents, with all the associated emotions, I probably wasn’t the easiest client to deal with but Charlie and Maddy were patient, efficient, and good humoured throughout. They augmented their own considerable expertise by drawing on Bonhams wide range of specialist departments which led to a number of items being sold in specialist sales, maximising exposure to the right buyers, in addition to my main collection sale. I was delighted with the results which considerably exceeded my expectations."

James Drummond

The Collection of Graham Slater.

The Collection of Graham Slater.

A Modern Antiquarian: The Collection of Graham Slater

Part I - 15 April | Live Part II - 1 - 16 April | Online

1000+ registrations on bonhams.com

99% sold by value

“I was extremely apprehensive about appointing an auction house to sell the vast number of antiques my parents had collected during their lifetime. Charlie and his team were not only delightful people to deal with but also dedicated, thorough and knowledgeable and, importantly, not fazed by the complexity of the task. Their diligence and calm reassured me at what was a very difficult time and resulted in a number of successful sales on behalf of the Art Fund, my brother and myself.”

The Family of Graham Slater

Kerfield House.

Kerfield House.

The Contents of Kerfield House

11 September | Live

99% sold by value

Extended four week view at 101 New Bond Street

“We were absolutely delighted with the time, charm, enthusiasm, and expertise which Bonhams put into selling the contents of our family home Kerfield House. We could not have picked better and were further delighted with the great results achieved in the auction.”

John and Elaine Johnson

Installation view of Downton Abbey: The Auction, Bonhams New Bond Street, September 2025.

Installation view of Downton Abbey: The Auction, Bonhams New Bond Street, September 2025.

Downton Abbey: The Auction 18 August - 16 September| Online

Bonhams hosted an extended exhibition on New Bond Street, with over 15,000 visitors in attendance

2600+ registrations on bonhams.com

100% sold by value

The sale achieved six times the pre-sale estimate

“I am delighted that not only will the props and costumes from the series be preserved - and hopefully cherished - by their new owners, but also that they have raised so much money for our chosen good cause Together for Short Lives.”

Gareth Neame, Executive Producer & CEO of Carnival Films

Lady Glenconner.

Lady Glenconner.

Lady Glenconner, My Life in Objects and A Farquhar Legacy

19 November | Live

600+ registrations on bonhams.com

98% sold by value

"I have had such great pleasure living with these wonderful objects, each telling their own fascinating story and I am delighted that they will soon be going on to new homes and their stories will enter a new chapter."

Lady Glenconner

Property from the Marianne Faithfull Estate

24 November - 3 December | Online | (Sound & Cinema)

100% sold by value

100% sold by lot

"Marianne made her home in many places around the world during her remarkable life and career, collecting unique pieces of furniture and art along the way. Each piece tells a story and reflects her spirit and inimitable taste. It is time now for these belongings to find new homes and I hope that they will bring as much joy to their new owners as they did Marianne."

Nicholas Dunbar, son of Marianne Faithfull

Auction Highlights in 2025

Press and Events

The Team

Deputy Chairman of Bonhams UK and Global Director of Valuations and Private Collections

UK & Europe Director for House Sales and Private & Iconic Collections

Director of Valuations

Sale Manager UK

Sale Manager Europe

Sale Coordinator