Vertical and lateral extension of a house in Melissia, Attica

Vertical and lateral extension of an existing two-family house with an exoskeleton in Melissia, Attica

Steel house


A project with countless challenges, where we had to span over the existing building with beams up to 14 m long. A fine and sturdy end result.

Vertical and lateral extension of a house in Melissia, Attica

A new story added with an exoskeleton, plus a side extension, to an existing two-family house in Melissia. The new steel frame stands on its own foundation outside the old building, and the frames with their bolted connections remain exposed on the facade, as an exoskeleton. The slabs are composite and the walls are 3D panel walls, with covers on the columns to break the sound bridges. A steel beam 14 meters long spans over the old roof slab.

Area: Attica


Project architect:

Plataris Filippos
Architect, AUTh
V. Mich. Tositsa 56, Metsovo
Postal code 44200, Tel.: 2656041865


Services we provided: Structural design, Steel frame construction and 3D panel walls


The construction step by step

Photos from the site, from the foundation to the walls and plaster.

Steel frame of a vertical and lateral house extension over an existing building in Melissia
Steel frame of the vertical addition above the house
Steel frames and bracing of a new story above an existing house in Melissia, Attica
Frames and bracing of the new story
Erection in progress
Erection in progress
Column cover against sound bridges
Column cover against sound bridges
Bolted cross bracing connections on the exoskeleton of the house extension in Melissia
In an exoskeleton the connections are on display, so they have to look right
Composite slab reinforcement and cross bracing in the frame of the extension in Melissia
Composite slab reinforcement and cross bracing in the frame of the extension in Melissia
3D panel wall installation in progress
3D panel wall installation in progress
Plastered walls above the steel exoskeleton of the extension in Melissia
Plastered walls above the steel exoskeleton of the extension in Melissia
Steel exoskeleton with bolted connections in front of the new stories in Melissia
Steel exoskeleton with bolted connections in front of the new stories in Melissia
House extension with scaffolding during plastering in Melissia
House extension with scaffolding during plastering in Melissia
Strip footing reinforcement next to an existing house for a steel frame extension in Melissia, Attica
Foundation reinforcement next to the existing house
Foundation pedestal reinforcement with anchor bolts and a template for a steel column, house extension in Melissia
Pedestal reinforcement with additional anchor bolts for the column
Side view of the steel frame of a house extension with columns outside the existing building, Melissia
Side view of the extension frame
House extension with a steel frame, walls and exposed bracing in Melissia, Attica
The extension with walls and exterior bracing
View of a house extension with exposed steel frames and bracing, Melissia, Attica
View of the extension with exposed steel frames
Substructure
Erection in progress
Steel frame of a house extension with cross bracing in Melissia
Steel frame of a house extension with cross bracing in Melissia
3D panel wall detail, vertical and lateral extension of a house in Melissia, Attica
3D panel wall detail

The first composite slab is on steel deck, set flush within the web of the main beams, since the height limits were strict. Completion of the frame.

 
 
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