--- title: Thayer Street date: 2025-04-01T09:30:00+01:00 author: Felicity Fox-Archer canonical_url: "https://www.vobsterarchitectural.co.uk/case-studies/thayer-street" section: Case Studies --- # Thayer Street, Marylebone Thayer Street, Marylebone - [](https://www.instagram.com/vobsterarchitectural/) - [](https://www.pinterest.co.uk/vobsterarchitectural/) - [](https://www.linkedin.com/company/vobster-architectural) ## Overview Designed by [Chapman Architects](https://www.chapmanarchitects.co.uk/) and delivered by [Knight Harwood](https://www.knightharwood.com/), Thayer Street is an attractive four-storey redevelopment in the heart of Marylebone. The project comprises a blend of finely crafted retail and office spaces rated EPC A and BREEAM ‘Excellent’, together with a green roof and landscaped terraces. Vobster Architectural collaborated with the architect, main contractor and sub-contractor [Winchmore Brickwork](https://winchmorebrickwork.co.uk/) to help deliver the overall design vision, creating a structure that integrates seamlessly into Marylebone’s rich historic landscape.[ ](https://www.vobsterarchitectural.co.uk/processes/wet-cast-stone)[Wet cast stone](https://www.vobsterarchitectural.co.uk/processes/wet-cast-stone) was specified as part of the design plan, and Vobster Architectural were pleased to supply the cast stone elements in a Portland, medium etch finish. ## Concept to Completion Set in a Conservation Area and surrounded by commercial, residential and historic properties, the Thayer Street project required careful consideration. The development involved joining together two building plots that respectively fronted Marylebone Lane and Thayer Street, and the demolition of redundant building material to make way for a more modern construction. The original Marylebone Lane facade was retained for its historic value, with two new storeys added above. Four gables with cast stone [copings](https://www.vobsterarchitectural.co.uk/products/copings) were installed on the top floor to well reflect the design language of the surrounding area. The facade fronting Thayer Street was removed and sympathetically reimagined using a combination of wet cast stone and brickwork typical of the local vernacular, creating a characterful and contemporary aesthetic. [![Pin it](/dist/img/icons/pinit.svg)Pin on Pinterest](https://www.pinterest.com/pin/create/button/ "Pinterest Share")![Thayer Street Marylebone Project, Vobster Architectural]() Careful planning was required to ensure both facades reflected Marylebone’s existing architectural landscape in terms of both scale and the materials used. Handmade bricks that resemble the originals used in nearby historic buildings were specified to make up most of the Thayer Street facade, and Vobster Architectural supplied a range of refined cast stone accent features that bring a sense of elegance and grandeur. [String courses](https://www.vobsterarchitectural.co.uk/products/string-course-and-cornices) were used to break up the brickwork and add interest to the design, and finely crafted cills, heads and elegant fluted panels were threaded throughout the new facade. This, alongside a grand ashlar piece that was installed across the lower levels compounds the enduring sense of quality that this project exudes. To learn more about wet cast stone, [visit our website](https://www.vobsterarchitectural.co.uk/processes/wet-cast-stone). [![Pin it](/dist/img/icons/pinit.svg)Pin on Pinterest](https://www.pinterest.com/pin/create/button/ "Pinterest Share")![Thayer Street Marylebone, Cast Stone]() [![Pin it](/dist/img/icons/pinit.svg)Pin on Pinterest](https://www.pinterest.com/pin/create/button/ "Pinterest Share")![Thayer Street, Marylebone, London](/imager/generic/thayer-street/32293/Thayer-Street-Marylebone-London_467db0da922213850caed8e177f94c1e.jpg) [![Pin it](/dist/img/icons/pinit.svg)Pin on Pinterest](https://www.pinterest.com/pin/create/button/ "Pinterest Share")![Thayer Street Marylebone, Wet Cast Stone](/imager/generic/thayer-street/32296/Thayer-Street-Marylebone-Wet-Cast-Stone_467db0da922213850caed8e177f94c1e.jpg) [![Pin it](/dist/img/icons/pinit.svg)Pin on Pinterest](https://www.pinterest.com/pin/create/button/ "Pinterest Share")![Thayer Street Marylebone, Wet Cast](/imager/generic/thayer-street/32295/Thayer-Street-Marylebone-Wet-Cast_467db0da922213850caed8e177f94c1e.jpg) [![Pin it](/dist/img/icons/pinit.svg)Pin on Pinterest](https://www.pinterest.com/pin/create/button/ "Pinterest Share")![Thayer Street, London, Vobster Architectural](/imager/generic/thayer-street/32298/Thayer-Street-London-Vobster-Architectural_467db0da922213850caed8e177f94c1e.jpg) [![Pin it](/dist/img/icons/pinit.svg)Pin on Pinterest](https://www.pinterest.com/pin/create/button/ "Pinterest Share")![Thayer Street Project, Vobster Architectural](/imager/generic/thayer-street/32330/Thayer-Street-Project-Vobster-Architectural_467db0da922213850caed8e177f94c1e.jpg) [![Pin it](/dist/img/icons/pinit.svg)Pin on Pinterest](https://www.pinterest.com/pin/create/button/ "Pinterest Share")![Thayer Street Cast Stone Project, Vobster Architectural](/imager/generic/thayer-street/32297/Thayer-Street-Cast-Stone-Project-Vobster-Architectural_467db0da922213850caed8e177f94c1e.jpg) [![Pin it](/dist/img/icons/pinit.svg)Pin on Pinterest](https://www.pinterest.com/pin/create/button/ "Pinterest Share")![Cast Stone Project - Thayer Street, Marylebone](/imager/generic/thayer-street/32331/Cast-Stone-Project-Thayer-Street-Marylebone_467db0da922213850caed8e177f94c1e.jpg) 1/ 7 ## Project partners ![Chapman Architects Logo]() ![Knight Harwood Logo]() ![Winchmore Brickwork Logo]() ## Related projects [### Wendle Court](https://www.vobsterarchitectural.co.uk/case-studies/wendle-court) [### Audley Sunningdale Park](https://www.vobsterarchitectural.co.uk/case-studies/audley-sunningdale-park) [### Keyford on the Green](https://www.vobsterarchitectural.co.uk/case-studies/keyford-on-the-green)