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Blower door n50:

Passivhaus Residential Building

This is a multifamily building consisting of four dwellings connected by party walls. The project includes a basement, a ground and a first floor.

The Plot

The town is in the Garraf region, which is 72m above sea level. This is the grouping of two consolidated urban land plots, with regular geometry. There is a slope of approximately 2.8m from east to west, with the highest point being the back eastern side of the plot, and the lowest point to the west, meeting the street.

The Project

The plan is a group of single-family dwellings connected by party walls, with vehicle access through the outdoor community area and a walk-in access also through the community area facing the street, which is the access to each of the dwellings. They consist of a basement, a ground and a first floor.

The construction

The façade type is one of vertical openings from the ground floor facing the community garden with a swimming-pool. It is framed by the stone skirting and there is a porch made out of handmade wooden shutters.

The Functional Programme

Every dwelling consists of a basement, a ground and a first floor. The basement accommodates both the walk-in and the vehicle access through a community area. Every dwelling has a parking lot with space for two cars, an installations area, a storeroom, a laundry room and a stairway to the ground floor. The ground floor accommodates the day zone with a kitchen, a living-dining room leading on to a garden and facing south, a study, a bathroom, and a stairway to the first floor.
The first floor accommodates the night zone: two bedrooms, a bathroom, and an ensuite bedroom with a walk-in closet.

Energy Efficiency

The aim is to achieve minimum energy use and maximum interior comfort for this dwellings project by meeting the Passivhaus standards. This is realised by the solutions integrated in the dwelling’s active and passive systems. The construction decisions adopted for this project ensure maximum airtightness in order to minimise any energy loss through the different components of the building and its connections.

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