![](https://europe-west2-sheppard-robson-dev.cloudfunctions.net/image-size?i=Projects/eprarchitects-owo-preview-film.jpg&w=100)
![](https://europe-west2-sheppard-robson-dev.cloudfunctions.net/image-size?i=Projects/eprarchitects-owo-6-details-THUMBNAIL.jpg&w=100)
As architect, EPR sensitively and meticulously restored, extended, and reimagined the London landmark, reincarnating the Grade II* listed former government headquarters into an outstanding placemaking destination featuring a five-star luxury hotel — 120-key Raffles London at The OWO — as well as 85 luxury residences, a plethora of exciting restaurants and bars and a destination Guerlain spa and health club comprising an extensive gym and striking 20m pool.
![](https://europe-west2-sheppard-robson-dev.cloudfunctions.net/image-size?i=Projects/eprarchitects-owo-9-rooftop-westminster.jpg&w=100)
![](https://europe-west2-sheppard-robson-dev.cloudfunctions.net/image-size?i=10036-The-OWO-External-%C2%A9-EPR-Architects.jpg&w=100)
![](https://europe-west2-sheppard-robson-dev.cloudfunctions.net/image-size?i=Projects/eprarchitects-owo-12-suite-1.jpg&w=100)
![](https://europe-west2-sheppard-robson-dev.cloudfunctions.net/image-size?i=Projects/eprarchitects-owo-14-floor-detail.jpg&w=100)
One of the most important elements of the building’s transition into a hotel was EPR’s extensive yet sensitive restoration, a process that took eight years. A stable of artisan craftspeople worked meticulously to give a new lease of life to a host of period details including delicate hand-laid mosaic floors, beautifully carved oak panelling that adorned the former Old War Office suites and the building’s magnificent marble staircase.
![](https://europe-west2-sheppard-robson-dev.cloudfunctions.net/image-size?i=Projects/eprarchitects-owo-15-granville-bathroom.jpg&w=100)
![](https://europe-west2-sheppard-robson-dev.cloudfunctions.net/image-size?i=Projects/eprarchitects-owo-13-granville-bedroom.jpg&w=100)
![](https://europe-west2-sheppard-robson-dev.cloudfunctions.net/image-size?i=Projects/eprarchitects-owo-10-staircase.jpg&w=100)
![](https://europe-west2-sheppard-robson-dev.cloudfunctions.net/image-size?i=Projects/eprarchitects-owo-18-guards-bar-lounge.jpg&w=100)
![](https://europe-west2-sheppard-robson-dev.cloudfunctions.net/image-size?i=Projects/eprarchitects-owo-11-restaurant.jpg&w=100)
![](https://europe-west2-sheppard-robson-dev.cloudfunctions.net/image-size?i=Projects/eprarchitects-owo-17-pool.jpg&w=100)
![](https://europe-west2-sheppard-robson-dev.cloudfunctions.net/image-size?i=Projects/eprarchitects-owo-16-pool.jpg&w=100)