The project is located at the intersection of Panyu Road and Huaihai Road in Changning District, Shanghai. Originally constructed in 1993 as the office building for the Japanese consulate, the building featured a red-brick neoclassical style. However, during the first-time renovation in 2005, its facade was replaced with glass and aluminum curtain walls system, which is discordant with the surrounding historical architecture. The current renovation design aims to restore the original facade characteristics, and to convert the interior from low-rent office space to high-end clubhouse office. The goal is to integrate it into the overall ambiance of the historical preservation area, perpetuate the memory of “Modern Shanghai - Columbia Circle,” and establish a new landmark on Huaihai Road that meets modern living requirement.
From a urban planning perspective, the project situated within the "new and old architectural styles blend" zone. Although historical drawings of the original appearance are available, they do not meet historical preservation standards. However, if we release the renovation limitation as a new architecture, considering its core location, the consistency and coherence of the overall features of the area may damaged from long-term perspective. Due to the lack of clear guidelines for such buildings, the proportion between modern and classical elements of the new facade sparked intense discussions during the initial design stage, and resulting in up to 30 design & research options.
After extensive exploration and research involving the client, planning authorities, and architectural preservation experts, the design proposed the concept of "Retrospective & Adaptive Renovation." This involves retracing the architectural system characteristics of the building's original appearance, such as classical multi-segmented structures, red bricks, and rounded arches, while adapting to the overall spatial ambiance of the preservation area by extracting typical elements from surrounding buildings, such as keystones, entrance door forms, window sill nodes, and layered arch. Additionally, The design also addresses the needs of high-quality living spaces by maximizing the window-to-wall ratio where structural changes are feasible, allowing each room to have large window areas for ample daylight and unobstructed street views. To enhance indoor-outdoor connectivity, each typical meeting room is equipped with multiple-track sliding window, it can turn the room to a half-open space when the window is fully opened. Also, the south-facing workplace feature a corner Romeo-Platform, the design wish to create a spatial experience reminiscent of "Shanghai under the plane trees."
To respond numerous of red brick heritage buildings in the historical style zone, the building's exterior facade primarily utilizes clay split bricks as the main material. Three different shades of red brick are hand-laid by skilled craftsmen according to a 7:2:1 ratio, following the specifications on the blueprint. This method aims to mimic the variegated colors and mottled appearance that old red brick buildings exhibit over time, weathered by wind and sun.
At the initial stage of the renovation, the design team conducted detailed interviews with surrounding residents, potential future users, and experts in the management of historic conservation areas. Besides the architectural form, they also summarized the needs for public spaces along the streets, open spaces, and green buildings, which guided the subsequent design.
The renovation updated the building's original HVAC system, transforming the central air-conditioning system that operated daily on a fixed schedule into individual air conditioning units for each household. Each floor was equipped with an independent air conditioning platform, allowing each unit to use AC separately with their own electricity meters, according to their needs. Meanwhile, the new facade design is no longer a closed curtain wall system; operable windows were added to every room, increasing the proportion of natural ventilation and smoke exhaust, thereby reducing the total carbon emissions of the building operation. After the removal of the mechanical rooms central air conditioning system, a large open space was freed up on the rooftop, which was transformed into a roof garden, including a resting terrace and landscaped tree pools. And a mini-rear garden is designed in the original abandoned distribution station area. All these provide the building a large amount of green space.
Also, A 3.5m depth mini street garden was created along Panyu Road on the ground floor. The 1.9m tree pit not only preserves indoor privacy but also does not obscure the building's street-facing image, creating a "transitional garden" between privacy and publicity for the first-floor users.
This project provides a potential template for the renovation of numerous similar buildings in Shanghai, balancing modernity with architectural historical style to infuse new vitality into the city while respecting its original urban fabric.Viewed through the flow of time, the transformation of buildings into luxurious workplace signifies a rebirth, also serving as a historical echo to this region, where is known as Shanghai's premier residential district, the "Columbia Circle," 100 years ago.
Credits:
Architecture Design: MUDO Architects + Do Design Group
Photographer: Dong Images