Great projects are carried out in collaboration:
Housing company As. Oy Iso Roobertinkatu 42, Helsinki
The work on the early 1900s building located in Helsinki’s trendy Punavuori district involved renovation of the HEPAC system and the basement, retrofitting of a lift, and the construction of two new loft-style flats.
The outbuilding erected in the late 19th century was converted to residential use, its basement and HEPAC system too were renovated, and a new loft-style flat and two balconies were built.
Both buildings’ exterior structures were repaired, and the courtyard was renovated.
Tampere Hall, Tampere
The project for extension and renovation of 1990’s Tampere Hall involved radical changes in the functions of this concert and congress centre. In the project, a 400-seat conference room, which can be divided in two, was constructed, along with a 230-seat studio-style auditorium and rehearsal premises for Tampere Philharmonic Orchestra and its musicians. Also, a new Moomin Museum was built.
Because of the tight schedule for the first stage of the project, the extension had to be light in structure while taking into account traffic noise in the area. In the design of the soundproofing, particular attention was paid to the positioning of the extension, which was built partly above and between existing structures, and to the main maintenance route, which passes underneath the building.
Cost: 12.6 million euros
Net internal area: 6,300 m²
Hatanpää Manor, Tampere
In the course of its history, Hatanpää Manor has served as a military hospital, museum, and event venue. The manor’s main building is of architectural value and therefore is under protection in the city plan. Repair measures for the façade’s plastering, balcony structures, and gypsum ornaments were determined on the basis of a building survey with the aim of preserving as much of the old structures as possible. The old plastering was preserved to the greatest extent possible.
Cost: 1 million euros
Gross floor area: 2,100 m²
A Tampere property that used to house an Anttila department store was converted into multi-user office premises for which particular attention was paid to good acoustics. Partitions, carpets, sound-dampening wall and ceiling materials, and a sound-masking system were used as acoustics solutions. In addition, the space features several meeting and call-taking rooms.
Gross floor area: 2,700 m²
City Hall, Vantaa
Vantaa City Hall was renovated, and a new council meeting room was built in connection with it. In one part of the project, children’s art centre Pessi, housed in a building originally designed as a municipal library, was renovated. City Hall, completed in 1957, and the library, built in 1958, were originally designed by architects Olli and Eija Saijonmaa.
The wood pile foundation was reinforced by jet grouting. Both structures are protected buildings in the city plan.
Volume: 82,500 m³, floor area: 6,054 m² for City Hall, 620 m² for the council room
KOY Koskitammi, Tampere
Tampella’s old Pellavatehdas factory was built in stages between 1857 and 1973. As a central part of the Tammerkoski national landscape, the building is under protection in the city plan.
It was converted to office and hospital use. In the conversion, the building’s history was respected and no major changes were made to the façade. The frame of the original portion consists of cast-iron pillars and panels of corrugated iron sheeting. In addition, the intermediate floors feature pitched brick vault structures.
Cost: 24 million euros
Gross floor area: 15,500 m²