TWO RIBA NATIONAL AWARD WINS
JULY 2024
The WongAvery Music Gallery for Trinity Hall in Cambridge and Auckland Castle, Tower & Faith Museum have both won RIBA National Awards.
The Auckland Project was founded by philanthropist Jonathan Ruffer. The project is one of a series of urban and historic interventions that seek to preserve the Castle’s heritage, promote Bishop Auckland as a visitor destination and reinvigorate the town. The Castle project by Purcell Architects involved the conservation of the state apartments and domestic rooms, and the provision of new learning, catering, retail and visitor facilities. It sought to increase visitor engagement and bring to life the forgotten story of the Prince Bishops and their role in the nation’s past. In its pivotal location, the form and construction of the Auckland Tower is intended to echo lightweight provisional structures that would once have clustered around Castle walls. It allows people a view into the Castle to understand this previously secluded world. The new Faith Museum extension to the Castle takes the simple form of a barn with certain details developed to project a public representation of a sacred function and provides space for exhibition displays on faith in Britain. The Auckland project has previously been awarded an RIBA North East Building of the Year and North East Conservation Award.
The WongAvery Gallery is a music practice and performance space for Trinity Hall, Cambridge. The new building sits in the centre of Avery Court. The aim of this project was not only to provide a much-needed dedicated space for music practice and performance, but also to rejuvenate Avery Court by relandscaping the court around the new building in a collaboration with Kim Wilkie. It also houses environmentally sensitive musical instruments and the college’s music library. the Jury commented on the project “The jury left the pavilion having absorbed a sense of calm unusual in any building. This is an admirable project in the way it has set out exceptional architectural ambitions and succeeded in seeing them through both design and construction with outstanding rigour and attention to detail.”
A STONE GLOSSARY
MAY 2018
William ‘Strata’ Smith’s 1815 Geological Map, the first nationwide geological map ever published.
We are in the process of choosing the stone to be used for a new building in Cambridge. It has been an apparently exhaustive journey through marbles and limestones from the UK, Europe and beyond. We amass endless samples, and talk in detail to quarrymen, masons and engineers about bed heights, weathering, and reliability of supply, as well as the inevitable costs to quarry the stone, cut it to shape, and fix it together to form a building. One of the most fascinating elements of this process are the specialist terms used to describe building stones and their properties. Below is a list of a few favourite words, ordered to explain the material properties that have so far governed our explorations for this new project.
The Clipsham Quarry at Rutland in Lincolnshire. Clipsham Stone occurs in the Inferior Oolite of the Jurassic System, where it was laid down between 174 and 163 million years ago. Clipsham is a popular building limestone with a characteristic golden colour. We have recently worked with it at Bishop Edward King Chapel in Cuddesdon and the Sultan Nazrin Shah Centre in Oxford.
Bedding plane
Many building stones, including all limestones, are sedimentary rocks, formed by the gradual settlement and compression of underwater sediment over millions of years. The directional way in which they were formed governs their properties and how they can be used as building stones. Most UK limestones must be used ‘naturally bedded’, i.e. orientated in the building in the same way that they were formed in the ground. This means the height of the blocks is limited to the depth of the bed, rarely more than 1m in the UK. ‘Face-bedding’, when blocks are laid so their bedding planes are parallel with the vertical face of the block, can lead to rapid weathering and crumbling.
Metamorphic
A stone that began as another type of rock and changed as a result of exposure to heat and pressure over geological time. Marble was originally limestone, and is chemically identical to it. However, the metamorphic processes changed its physical properties so that it does not have bedding planes, and can be cut and orientated in any direction. This makes it ideal if tall blocks are required.
Precipitation
The chemical process by which Travertine is formed, usually when geothermally heated water is exposed to the air, causing it to degas and carbonate minerals to precipitate out from the water. Although a type of limestone, its distinctive formation means it also doesn’t have bedding planes and is workable in much longer, thinner pieces than sedimentary stones.
Oolitic
A type of limestone made from an amalgamation of individual grains called ooliths. An oolith is a tiny carbonate particle surrounded by concentric layers of calcium carbonate, which were deposited as the ooliths were rolled around on the bed of the clear shallow sea in which the stone was formed. This gives the stone an even structure so it can be cut or sculpted in any direction, a characteristic which makes oolitic stones ‘freestones’. Portland Stone is an oolitic limestone used extensively in London’s historic buildings, perhaps most famously in churches by Cristopher Wren and Nicholas Hawksmoor, including St Paul’s Cathedral and Christ Church Spitalfields.