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T.R.O.P: terrains+open space由于项目位于高密度的城市中心且被几条曼谷最繁忙的街道环绕,Ashton Chula-Silom看起来迫在眉睫地需要为居民提供一个宜居的环境。由于高层的人居方式,城市变得更加支离破碎,居民们不仅失去了与邻里地亲密联系,同时也与自然渐行渐远。

T.R.O.P: terrains+open space: With its prime location in the dense urban core, surrounded by several of the busiest streets of Bangkok, Ashton Chula-Silom sees an imminent challenge of providing its inhabitants with a truly livable environment. As vertical living continues to pierce into the sky, the city becomes more fragmented, and its dwellers lose their connection not only to the neighborhoods and people around them but also to nature.




The project envisions an opportunity to re-link this connection while promoting a better living environment. By maximizing green areas, drawing an inviting pedestrian passage, and providing a semi-public garden at the front yard, the landscape helps to blur the sharp line of this exclusiveness, thus contributing to the greening effort of the nearby streets and footpaths. The close collaboration with the architects and engineers has also fostered a creative integration of landscape and architecture. The man-made “Green Mountain” wrapping the low-rise car park building is one of the essential features in response to the growing issues of urban heat island, glare effect, and increasing urban runoffs.


▼鸟瞰 Aerial view


项目阐释 Project Narrative

Ashton Chula-Silom是位于Rama路4号的高端住宅项目。它位于曼谷中心最熙熙攘攘的城市区域,周边为著名的朱拉隆功大学、Samyan和Silom,这极具策略性意义。这些区域迅速地发展成了高密度的城市街区并且几十年来人口一直非常稠密。无论是杂货店、食品、教育设施,还是休闲和娱乐中心,人们可以在这些地区找到他们需要的一切。该基地同时也受益于它邻近两个公共火车站和可步行的步道到附近的目的地。

Ashton Chula-Silom is a high-end residential project located on Rama 4 Road. It strategically placed itself right in the center of Bangkok’s most bustling urban districts – the prestigious Chulalongkorn University Campus, Samyan, and Silom. These districts have rapidly developed into dense urban quarters and have been extremely populous for many decades. One can find all they need to strive within these districts, be it groceries, food, educational facilities, or leisure and entertainment complexes. The site also benefits from its proximity to two public train stations and walkable footpaths to nearby destinations.




However, living in such a convenient and dynamic location comes with a high price, environmentally. Rama 4 Road is considered one of the major arteries of Bangkok that accommodates a significant amount of traffic every night and day. An overpass above Samyan intersection, which extends past the project’s doorstep, concretizes the visual blockage and adds more noise pollution. The dense urban fabric also means limited open spaces and ventilation. All of these issues affect both the project’s inhabitants and other commuters in public. Well-aware of the challenges, the landscape team came up with a simple yet effective holistic greening approach. As a result, the landscape becomes an integral part of the design that could enliven this urban habitat again.


▼屋顶下沉庭院的砾石将落在上面的水过滤并还回到周围的软质景观中 The sunken courtyards filled with gravel beds, which filter and convey any water that falls onto them back into the surrounding softscape.



The final design consists of three key landscape components; the Entry Garden, the Urban Mountain, and the Rooftop Multi-leveled Pool and Observation Deck.



入口花园 Entry Garden


To encourage the residents to use public transport and travel on foot, a smooth pedestrian access ramp is clearly designated. The pedestrian passage is lined with a feature wall on one side, and shallow cascading water feature on the other to create a conceptual transition from the busier streets outside to the more relaxing garden inside.




With limited site area, the building footprint takes over more than half of the ground plane. The landscape design team then sought to limit paved driveway areas, maximize the soft landscape and, in the process, create a sizable frontal sunken garden. Although merely consisting of a simple green area, a group of evergreen and deciduous trees, and a series of seat walls integrating into the undulating ground, this garden acts as the catalyst for the inclusive and seamless urban green connection in many ways. For instance, the low boundary wall allows for visual linkage, mitigating the impact of abrupt public and private segregation. The trees within the garden are planted close enough to form a future interconnected canopy both between themselves and with the existing street trees on the other side of the wall, providing continuous shade to the footpath. Lastly, the overall significant undulating soft landscape helps to counter heat absorption, reduce surface runoffs, and create a pleasant green environment for the tenants and commuters. A well-known coffee shop also opens its door to the public in a concerted effort.



城市山丘 The Urban Mountain


Working closely with the design team and client, the landscape team managed to bring the greening effort up onto the low-rise frontal section of the building, which houses an entry lobby, the coffee shop, and a stacking five-storey car park. Its position is unavoidably the focal point of every angle approaching the building and has a significant impact on the overall physical environment. The landscape team sees an opportunity of covering the entire structure with plants, resembling a “Green Mountain” with various textures and foliage that breathes life into the bold dark-colored high-rise building behind. The green facades – plants in many forms and layers, acts as a soft shield protecting the building from absorbing too much heat, and the stepping terraces planted with trees also help to filter dust from the roads before reaching the garden on its peak. These green terraces also help absorbing the smoked pollution from car park inside. Stepped terraces are intentionally created as a no-man land area, an unreachable shelter that allows the surrounded habitats such as the local birds to come.




The garden at the top of the Green Mountain eliminates the unpleasant sight of a bare roof and prevents glare from disturbing the residents living above it. Here, the similar design approach continues from the ground floor, leading to softscape area maximization. The only hardscape areas mostly exist in the form of sunken courtyards filled with gravel beds, which filter and convey any water that falls onto them back into the surrounding softscape. Combining with the extensive softscape areas, it is how the landscape can tackle the issue of excessive stormwater discharge from urban projects into the city’s main pipes. These sunken gravel courtyards also break down the vast scale of the roof, creating rooms for various activities and encouraging more interaction amongst the residents.



屋顶的多层游泳池和观景平台 The Rooftop Multi-leveled Pool and Observation Deck


The 49th rooftop floor is the ideal place for the design team to create a recreational space away from the busy urban streets. As you move higher up, the tight enclosure of the urban surroundings opens up into a completely unobstructed view of Bangkok’s skyline. Covering most of the floor area, the swimming pool takes full advantage of this feature by extending its arms out as far as it could into the horizons, allowing enough space for a proper lap pool, kids’ pool, and Jacuzzis. The lap pool occupies the uninterrupted southern edge which opens up to the majestic and panoramic view of Bangkok city skyline.




Instead of placing one pool next to another on the same level, the landscape team thought beyond a flat plane and created a series of multi-tiered pools, with several Jacuzzis placed higher than the rest. This multi-leveled approach does not only allow for various exercise options or provides flexibility for the residents to appreciate Bangkok’s skyline without blocking others.




The raised structures also free up extra room for other pool facilities such as outdoor showers and supporting mechanical systems. The use of light material colors of the pool underlines the simple rectangular forms and makes the pools seem larger than they are.



▼屋顶多层游泳池夜景 Night view of the Rooftop Multi-leveled Pool



The rooftop gym and shared business center float above the pool level. Underneath the structure lies an observation deck consisting of several group seating areas. These seating areas are framed by building’s columns, creating semi-outdoor living rooms which are more intimate than the outdoor pools while also profiting from the extensive northeastern skyline. The plant selection here aims to soften sharp building edges and reflects the amount of sunlight each area receives. Setting further back under the building’s overhang, more shade-tolerant shrubs with big leaves are widely used, while the spaces totally open to the sky are filled with flowering fine-leaved shrubs and trees, creating contrast in textures and sensory garden.




The simple rectangular designs and straight lines with rounded corners inspire the overall landscape composition. The forms, similar to the building’s shape, can be seen applied throughout the entire development, which helps to bind the architecture and landscape together and create a well-integrated urban living experience.


▼剖面分析 Section analysis




景观设计:T.R.O.P: terrains+open space
设计总监:Pok Kobkongsanti
景观设计团队:Thongchai Sinsansiri
施工监理:Kampon Prakob…
建筑设计:Architects 49 Limited
室内设计:dwp\ PIA Interior Company Limited.
软景顾问:M.J. Gardens Company Limited.

Leading Landscape Architect: T.R.O.P: terrains+open space
Design Director: Pok Kobkongsanti
Landscape Design Team: Thongchai Sinsansiri
Landscape Construction Supervisor: Kampon Prakob…
Client: Ananda Development Public Company Limited
Architect: Architects 49 Limited
Interior Designer: dwp, PIA Interior Company Limited.
Softscape Contractor: M.J. Gardens Company Limited.


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