Sustainable by design 2050

An initiative of the UIA

Velux model home 2020

Activehouse

Sapienza_Universit___di_Roma

Architekturclips

Fehlmann Areal

Fehlmann Areal

Photographer: Roger Frei

Fehlmann Areal

Photographer: Roger Frei

Fehlmann Areal

Photographer: Roger Frei

Fehlmann Areal

Photographer: Roger Frei

Fehlmann Areal

Photographer: Roger Frei

Fehlmann Areal

Photographer: Roger Frei

Fehlmann Areal

Photographer: Roger Frei

Fehlmann Areal
Fehlmann Areal
Fehlmann Areal
Fehlmann Areal
Fehlmann Areal
Architect
Bob Gysin + Partner BGP Architekten ETH SIA BSA
Engineers/Specialists
Structural Engineer: Dr. J. Grob & Partner AG, MEP Consultant: Gruenberg + Partner AG, Landscape Architect: vetschpartner Landschaftsarchitekten AG, Tree care: Woodtil Baumpflege Ost AG
Location
Western Europe - Switzerland - Winterthur
Climate Zone
temperate
Design status
build
Date of completion
2009
Type
Housing
Site area (m²)
14636
Footprint (m²)
3945
GFA (m²)
10004
NFA (m²)
7163
NFA/GFA
0.716
Density
0.684
Gross Volume (GV) (m³)
32150
Building Costs
19000000 CHF
Building Costs / m² GFA
1899.24
Building Costs / m² NFA
2652.52
Building Costs / m³ GV
590.98
Primary Energy (kWh/m²a)
31
Heating Energy (kWh/m²a)
33
Cooling / Heating-System

District heating, floor heating, ventilation system with energy recuperation

Use of renewable ressources - low tech
natural cross ventilation, use of high thermal mass
Use of renewable ressources - high tech
energy recuperation, other
Renewable, recycled, recyclable and innovative materials

Aluminium/timber composite windows, timber fooring

Key Sustainability aspects
public spaces, accessability for disabled, participation of users in planning process
Sustainability rated
Passive House
Social and ethical responsibility

The idea of the project was to maintain the qualities of the existing park and to make it accessible to the future inhabitants and the public. The park that was used for over 80 years by just one family, now gives benefit to the inhabitants of 57 new flats without changing the general character of the place.

Ressource efficiency and environmental impact

The energy concept has 2 key aspects: First, to preserve the valuable tree population in the park and to raise the density of this urban area, which is very close to the city centre. Therefore the footprint of the building was minimized and the roofs are vegetated. Second, to reduce the energy consumption by using a compact building geometry, a highly insulated building envelope and an opening-ration of about 35%. The buildings use a floor heating system and benefit from the district heating system which uses 100% renewable energies. The ventilation system is using a highly efficient energy-recovery. The energy-demand for heating is between 33 und 42 kWh/m2a.

Economic lifecycle perfomance

The buildings are very compact. All service areas (kitchen and bath) are located next to the central core which provides a highly flexible floor plan. The compact building design and the good NFA/GFA-ratio permit the relatively low building costs (680 CHF/m3).

Contextual performance and impact

The concept is based on a modular principle of 3 different building types of different sizes. The compact cubes haves different footprints and heights to be able to react to the different sizes and typologies of the surrounding buildings. All types are based on the same simple structural principle with a central staircase and a similar facade design.
Due to the different footprints of the buildings it was possible to offer a big variety of different flats between 75 and 200 sqm. From the outside it is impossible to see the difference between the small """"villas"""" with only one flat on every floor and the bigger apartment buildings with up to 11 flats per building. All apartments are oriented with 2 or 3 facades and French windows towards the park.