Architecture practice Robert Konieczny KWK Promes was commissioned to design "Trim House," a single-family home located on the outskirts of Vilnius, the capital of Lithuania, in an area characterized by urban development integrated into the wooded landscape.

In 2016, the firm won the commission to design the aforementioned single-family home, and in 2017, building regulations were modified by the Lithuanian Farmers and Greens Union, limiting the buildable area by 50%, which influenced the interesting outcome of the proposal. 

"Trim House," designed by Robert Konieczny of KWK Promes, comprises two triangular floors with direct access to the garden. The ground floor houses the living room and a patio that seamlessly extends the surrounding garden, while the upper floor contains the bedrooms with access to a terrace.

The resulting house is a response to building regulations, its geographical location, and additional requirements such as expanding the garden and maximizing natural light. 

«Trim House» por Robert Konieczny KWK Promes. Fotografía por Jakub Certowicz.

Trim House by Robert Konieczny KWK Promes. Photograph by Juliusz Sokołowski. 

Project description by Robert Konieczny KWK Promes

In 2016, we were invited—along with several international studios—to take part in a closed competition for a single-family house in one of Vilnius's suburban districts, organized by a private client. This is an area charac-terized by loose, traditional development, with houses and summer cottages nestled among trees and expan-sive recreational grounds. On the plot included in the competition, as well as in its surroundings, there were once wooden houses from the interwar period, which have not survived to the present day.

«Trim House» por Robert Konieczny KWK Promes. Fotografía por Jakub Certowicz.
Trim House by Robert Konieczny KWK Promes. Photograph by Jakub Certowicz. 

As a result of raising part of the house one level up, the patio brings additional daylight into the interior and—together with the living area—became an extension of the surrounding garden. The elevated first floor houses the private night zone. The bedrooms, with access to a terrace above the ground-floor volume, allow resi-dents to enjoy nature while maintaining a sense of privacy and security.

In 2017, before we had the chance to come up with a name for this intriguing spatial motif—still during the de-sign process—the Lithuanian Farmers and Greens Union came to power and introduced regulations that limi-ted the allowable building footprint by 50%. The location of the driveway to the house was also changed—the new route leads directly into the garden.

«Trim House» por Robert Konieczny KWK Promes. Fotografía por Jakub Certowicz.
Trim House by Robert Konieczny KWK Promes. Photograph by Jakub Certowicz. 

The client began searching for a new site for our design, but we managed to persuade them to stick with the original location and reduce the house’s area by 40%. As a result, a triangular floor plan emerged.

The enlarged garden area and improved access to sunlight—so important in this geographical location and forested setting—became additional arguments that allowed us to trim the house. Although the scale changed, the core idea of the project remained intact.

More information

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Architects
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Robert Konieczny KWK Promes. Lead architects.- Robert Konieczny. Local partner.- 4 PLIUS ARCHITECTS - Donaldas Trainauskas. 

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Project team
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Dorota Skóra, Michał Lisiński, Krzysztof Kobiela, Łukasz Marciniak, Mateusz Białek, Katarzyna Ficek.

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Collaborators
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Structural design.- Firma Inżynierska STATYK.
Home decor.- Yes. Design Architecture. 

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Developer
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Prywatny. 

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Area
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Site area.- 1,784 sqm.
Built up area.- 299 sqm. 
Usable area.- Residential area 357 sqm, warehouse and technical area 189 sqm.

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Dates
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Design.- 2015 - 2019.
Construction.- 2019 - 2025.

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Location
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Vilnius, Lithuania.

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Photography
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Juliusz Sokołowski, Jakub Certowicz.

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KWK Promes architecture studio is an architecture firm founded by Robert Konieczny in 1999, based in Katowice, Poland. In 2007, KWK Promes was selected as one of the 44 best practices of young architects by 'Scalae'. That same year, 'Wallpaper' named Konieczny's work one of the 101 most exciting studios in the world. In 2008, he participated in 'European 40 Under 40', organized by the European Center for Architecture, Art, Design and Urban Studies and the Chicago Athenaeum.

Robert Konieczny is an architect, a graduate of the Silesian University of Technology in Gliwice. In 1996, he received a certificate from the New Jersey Institute of Technology. In 2012, he became an independent expert for the Mies van der Rohe Foundation. Robert Konieczny has been nominated eight times for the European Mies van der Rohe Award. He has also received the prestigious House of the Year 2006 award, with his Aatrial House project as the best project in a competition organized by World Architecture News.

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Published on: March 26, 2026
Cite:
metalocus, CAMILA DOYLET
"Adapted volumetry. Trim House by Robert Konieczny KWK Promes" METALOCUS. Accessed
<https://www.metalocus.es/en/news/adapted-volumetry-trim-house-robert-konieczny-kwk-promes> ISSN 1139-6415
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