Facha Architekti Adds Red Corrugated-Metal Extension to Czech Ex-Pigsty Home

Prague studio Facha Architekti has completed House With a Red Addition, a 26-metre extension clad in red corrugated metal attached to a family home in the Czech Republic's central Příbram region that was originally a pigsty.

The extension enlarges the family's living space and strengthens the building's connection to the outdoors. It delivers seating steps, a larch terrace and a colour-matched retractable textile awning.

The building had gone through several iterations before its adaptation into a permanent home. Rather than "erase this history", the studio made the extension "deliberately distinct" from the main house.

How did the studio use the red?

The colour choice was practical before it was conceptual. "The red did not have any predetermined symbolic meaning, but emerged from the limited standard colour range available for the corrugated metal cladding," Facha architect Matěj Nepustil told Dezeen.

"It felt like the strongest choice to us, while also emphasising the clear distinction between the new addition and the original house."

The house occupies a 515-square-metre plot on the edge of a small village, set within a loose pattern of detached houses and former agricultural buildings.

What happens inside the extension?

The exterior announces the addition as contemporary; the interior works in the opposite direction, integrating new and old into one cohesive living space. Pine plywood is the unifying device.

"The pine plywood therefore transitions from wall lining into built-in furniture, tying the different elements of the interior together," said Nepustil.

The custom furniture also solves a long-standing storage shortage. Storage is now concealed within the furniture and blends into the pine-clad walls and ceiling.

"This allows the storage and wall surfaces to read as one continuous element rather than as separate pieces of furniture," said Nepustil.

Red returns inside as the dominant accent, applied to:

• countertops
• cupboard inlays
• bannisters
• two dining chairs

These accents counterpoint a neutral palette of pine-plywood cladding, natural-linoleum flooring and structural-timber beams.

Why did the entrance move?

The old-new distinction is sharpest at the threshold: the studio relocated the home's main entrance into the extension. The move let the team restructure the original layout and enlarge the bathroom for the family's growing needs.

"It also gave us a more generous entrance area in the new extension, replacing the very cramped one in the original house," added Nepustil.

The project joins a run of Czech residential conversions covered by Dezeen, including a former-pigsty holiday home by Lenka Mílerová Architektka and a modular steel-clad house by Papundekl Architects. Photography is by Peter Fabo. As Czech villages continue to repurpose agricultural stock for housing, House With a Red Addition shows how a bold industrial material palette can register new construction without flattening a building's working past.