A&M Architecture is the world’s leading supplier of luxury staircases and architectural stone.

Ancient & Modern Architecture is the world’s leading bespoke designer and manufacturer of stone stairways. Cutting edge engineering combines with exceptional stone masonary to create elegant sculptural structures that transform every environment.

Established in London in 1983, the specialist team at Ancient & Modern Architecture incorporates designers, stone procurement specialists, chartered engineers and master stonemasons. The firm’s reputation was founded on striking, architectural pieces featuring intricate carving and faithful historic interpretations of items such as mantles. The specialist stairways division was established in 2008 and draws on over 70 years of collective experience and expert knowledge.

The very finest raw materials including highest grade Italian marble, French limestone and English Portland stone combine with glass, wood and metal work in flawless, high functioning designs. The synergy between traditional techniques and cutting edge architectonics results in harmonious, sympathetic designs. Each and every Ancient & Modern Architecture stairway is unique and made to commission in close consultation with the clients and their design teams. Work spans galleries, museums, institutions, hotels, businesses and private residences.

The team includes designers, stone procurement specialists, chartered engineers and master stonemasons – together with the longest history in the industry, we can assure you we are capable of building the exceptional.

Our design team has experience in every form of staircase configuration: whether classical cantilevered or cutting edge post tension floating staircases, we have had the widest experience in the category in the industry. We also have wide experience designing facades, floors and many other architectural products.

We also have strong capabilities in handrails and balustrades
We have chartered and other engineers on staff ready to test and prove our designs and ensure the concepts can become reality.

We also have close relationships with the best structural engineering firms in the world who will work with our engineers and your architect to ensure the perfect product.

The team has collective experience of over 70 years working exclusively in the stone industry, our knowledge of the product and our contacts at the best quarries are second to none.

Mat Snelling


Having worked in the stone industry for twenty years, Mat is an expert in every aspect of stone masonry and brings an appreciation of aesthetics and materials to every project. He was appointed managing director in 2020 and was instrumental in establishing Ancient & Modern Architecture practice in 2008. The concept was to provide a full-service division specialising in innovative design, outstanding architectonics and masterful installation of large-scale features in stone. Commissioned concepts span cantilevered and post tension stairways, striking facades and exceptional bathrooms for private homes, galleries, heritage sites, institutions, and commercial properties across the globe. Mat’s dynamic relationship with preeminent quarries ensures the procurement of exceptional quality marble and stone.

Joao Silva


Joao is an EU Chartered Engineer with experience of highly complex engineering projects including concrete dams and power plants and brings technical and structural mastery to the team. He is a pioneer of cutting-edge engineering techniques that make floating stairways possible. These timeless signature structures rise up and spiral through floors like feather-light ribbons

Alistair McCowan


Alistair has worked in the stone and design industry for over 30 years. Based in New York for 15 years, he heads up the US side of Ancient & Modern Architecture Architectural. Alistair works closely with US architects, interior designers and contractors.  His background in architectural antiques and in-depth knowledge of architectural history informs Ancient & Modern Architecture Architectural’s approach to designing with both historical accuracy and modern flair. 

Carlos Martins


As a Chartered Architect, Carlos blueprints and oversees each commission. Carlos, who trained at the prestigious Lusofona University, Lisbon has many years of experience in residential design and management. He joined Ancient & Modern Architecture as Senior Project Architect in 2014. 


Miguel Dias


Senior Structural Engineer, Miguel is responsible for designing and engineering stonework projects. A qualified Civil Engineer and graduate of Nova University in Lisbon, Miguel joined the practice in 2016 and excels in marrying rigorous knowledge with aesthetic artistry. 



Andrew Corrie


In 2020, Andrew spearheaded a management buyout of the architectural division of Ancient & Mordern allowing the company to expand and capitalise on its unique proposition. Since 2005, he has specialised in high-end furniture, lighting and accessories following a career in banking and finance in the U.S.A. Andrew is a partner in Ochre and the founder of Canvas Home and he shares a 360 understanding of the architectural and design process. Andrew works between the U.S. and the U.K.


Tracey Hughes


Tracey heads up our financial team with over 30 years experience within the field. Her commitment to ensuring accurate records are kept along with an exceptional history of working in the service industry gives us a strong platform to build from safe in the knowledge that the fundamentals are being well looked after.