The 1930s Neo-Georgian building has been renovated and extended, with 85% of its original structure and faade retained. The project introduces new workspace, landscaped terraces, and a timber mews building in place of a former car parkSource: Henry WoideSource: Henry WoideSource: Henry WoideSource: Henry WoideSource: Henry WoideSource: Henry WoideSource: Henry WoideSource: Henry WoideSource: Henry WoideSource: Henry Woide1/10show captionFletcher Priest Architects has completed the refurbishment and extension of Marylebone Place, a former British Home Stores (BHS) headquarters, for Beltane Asset Management. The redevelopment of the 1930s Neo-Georgian building into 75,000 sq ft of workspace, retains 85% of the existing structure and faade.Situated between Marylebone Road and Wyndham Street, a short distance from Marylebone Station and Regents Park, the site was previously owned by Arcadia Group. The refurbishment includes the replacement of a 1960s extension with stepped, south-facing terraces, as well as the construction of a new mews building with a timber structure in place of a redundant car park.Fletcher Priests design adds three storeys to the building, set back at the upper levels. Other additions include landscaped terraces, with a shared roof garden on level nine.The practice states that retaining the substructure, frame, and faades has saved an estimated 7,515 tCOe in embodied carbon while also reducing disruption to the surrounding area by shortening the construction programme. The new mews building, constructed from a glulam and cross-laminated timber (CLT) structure, replaces a service block and car park and is said to have saved 19 tCOe compared to a conventional steel or concrete alternative.The development also introduces new faades to the south and the mews building, with a stepped brick frontage that incorporates a mix of brick colours. The design features a tonal gradient from a lighter base to a darker top, with some red bricks interspersed.Source: Henry WoideSource: Henry WoideSource: Henry Woide1/3show captionThe mews building, which mediates with the surrounding smaller-scale Georgian streetscape, incorporates a passage lined with bright orange glazed lava stone bricks, while the brick frontages on Wyndham Street and Knox Street seek to reflect the proportions of nearby terraces, including the Grade II-listed 8 Wyndham Street.The refurbishment also includes interior design by Fletcher Priest, intended to provide a visual and material connection between external and internal spaces.In operation, the building is all-electric and incorporates natural ventilation through opening windows, supplemented by mixed-mode cooling. Extensive planting has been introduced across the top four levels, with the new mews building featuring a green roof designed to support Londons biodiversity targets.