Dutch architecture studio BETA has built a house in Amsterdam for a multi-generational family with a central yellow staircase connecting their separate accommodation.
BETA designed the Three-Generation House for a couple with young children who already lived in the city, and their parents who wanted to move in.
建筑把这个三代人的住宅定义为“小公寓”，希望设计可以撑过时间的考验。
年老的夫妻目前正住在建筑的顶层，底部一层包含了年轻人的居住空间。
The architects describe Three-Generation House as a "mini apartment building" that is designed so it can be adapted over time.
The elderly couple currently occupies the apartment at the top of the building, while the bottom floors contain the young family's living spaces.
住宅中设有可以直达祖父母房间的电梯，住宅内也进行了无障碍设计，在这里可以远眺整个城市的景色。
低层的空间包含了一个办公室和一个客厅，一层有一个可以供孩子玩耍的迷你公园。
A lift provides access to the grandparents' apartment, which features level floors for improved accessibility and offers expansive views across the city.
The lower apartment contains an office and living spaces on the ground floor that open onto a garden where the children can play outside.
中间楼层目前用途为客房，但如果家庭中其他人有需要也可以使用。
所有楼层都由中央的楼梯连接起来，这个楼梯有助于划分空间并在室内创造一个视觉焦点。
A central floor currently provides guest accommodation for the upper apartment, but can easily be added to the lower residence if required.
All of the levels are accessed from a staircase positioned at the centre of the building, which serves to divide up the interior spaces and creates a bold focal point.
建筑设计事务所说：“与其说它只是必要的连接工具，不如说它就是建筑的中心。”
“下层空间的雕塑元素无处不在，逐渐转变为建筑物中更高层次的意境。”
"Instead of reducing vertical circulation to a necessity, it occupies the heart of the building," the studio said.
"Omnipresent as a sculptural element in the lower apartment, the system gradually transforms into a series of voids higher up in the building."
住宅的外立面反映了内部的结构。
北立面的封闭性有助于减少热量损失，并隔绝繁忙街道的噪音。
Externally, Three-Generation House's opposing facades reflect the arrangement of the internal programme and respond directly to its context.
The predominantly closed northern facade helps to reduce thermal loss and prevents noise from the busy street outside reaching the interior.
南部的玻璃将采光最大化，结合阳台，缓和室内和室外之间的过渡。
该房屋的平面也在北部的分隔更加私密的房间，而南部区域更加开放，是光线充足的生活空间。
The glazed southern elevation maximises passive solar gain and incorporates balconies that soften the transition between indoors and outdoors.
The house's plan also transitions from more intimate and compartmentalised rooms to the north, to more open-plan and light-filled living spaces to the south.
"In a near elementary detailing, the building communicates its composition and materials communicate their purpose," BETA added. "Closed and bare towards the north, light and fragile towards the south, the building is a composition of contrasts."
Structural walls throughout the home feature exposed concrete masonry blocks that support concrete slabs spanning eight metres.
The concrete surfaces contrast with wood that is used to define different functional zones within the spaces and to introduce a warmer hue.
The bright yellow staircase adds a playful accent, while plants provide a further natural detail.
Architects have come up with some inventive ways of housing multiple generations of a family under one roof. Other examples include a house in Seoul, designed as if three separate homes were piled on top of each other.
Photography is by Ossip van Duivenbode.
