21 Carpenter - A Heritage Boutique Hotel along New Bridge Road
The transformation of the heritage building at 21 Carpenter Street in Singapore into a modern hotel represents a pinnacle of structural excellence, cultural preservation, and sustainable development. In collaboration with 8M Real Estate and WOHA Architects, Ramboll was instrumental in balancing the preservation of the historic structure with contemporary civil and structural engineering solutions. This project revitalised an iconic pre-war shop house, blending heritage conservation with modern architecture and sustainable practices.
Originally built in 1936 as a remittance house, the 21 Carpenter building was crucial in Singapore's early immigrant history. However, the structure had deteriorated over time, facing weakened foundations and outdated materials. The decision to repurpose the building into a boutique hotel preserved its historical significance while ensuring it meets modern building standards and safety requirements. The hotel now boasts 48 guestrooms, a rooftop pool, and a neo-bistro bar, all seamlessly integrated into the original heritage façade and extension.
“The project features many innovative aspects to enhance sustainability and the social impact of the built environment. Our work was integral in achieving a harmonious integration of historic preservation with modern architecture and sustainable practices, demonstrating our commitment to sustainability, innovation, and design excellence.”
Innovative Engineering Solutions
A key aspect of the project was the preservation of more than 80% of the original structural frames, significantly reducing material waste and minimising environmental impact. By using advanced engineering techniques, including prefabricated steel trusses and a "cut and carry" methodology, the team was able to minimise disruptions to both the existing structure and its surroundings. This innovative approach allowed the careful integration of a 6-storey rear extension, preserving the heritage character of the shop houses while adding modern functionality.
Ramboll's structural engineering solutions ensured that the building complied with stringent conservation regulations while enhancing its resilience. The supporting structure beneath the Timber floors were replaced with steel composite elements to enhance fire safety. Additionally, the foundation was strengthened using steel micro-piles to mitigate potential long-term settlements caused by the underlying thick soft clay, ensuring both modern safety and serviceability standards were met within the tight working spaces.
Sustainability at the Core
The success of the 21 Carpenter project highlights the importance of collaboration between architects, engineers, builders and heritage preservation experts. It stands as a model for future urban development, demonstrating how historical buildings can be preserved and adapted to meet contemporary needs while minimising environmental impact.
Awards
- Certificate of Commendation in the Small Projects category at the IStructE Singapore Structural Awards 2024
- SIA Architectural Design Awards 2024: Design of the Year – 21 Carpenter, Singapore
Image Gallery
21 Carpenter
Credit: Finbarr Fallon
21 Carpenter
Credit: Finbarr Fallon
21 Carpenter
Credit: Finbarr Fallon
Want to know more?
Yu Huang
Director, Buildings
+65 9835 1835