# Accordion Facade Housing Harmonikahusene Introduces Curved Residential Volumes in Frederiksberg By Amy Duong | Published 2025-12-09 | Art & Design Source: Trend Hunter, https://www.trendhunter.com/trends/harmonikahusene References: [effekt.dk](http://effekt.dk/)  Harmonikahusene is a residential development in Frederiksberg, Copenhagen, designed by architecture studio [EFFEKT](https://www.trendhunter.com/trends/simac). The project consists of two curved building volumes connected at ground level and defined by a [repeating zigzag facade profile](https://www.trendhunter.com/trends/fractal-facade-house). This accordion-like geometry creates projecting bay windows that increase daylight access and support natural ventilation across compact apartment layouts. The exterior form responds to the surrounding urban fabric while introducing a distinct rhythmic surface along the street frontage. The development provides housing primarily for students and young professionals and includes a mix of compact private units and shared communal facilities. Rooftop terraces, planted courtyards, and interior circulation spaces encourage resident interaction and shared use. Ground floor areas accommodate public-facing functions, including retail and café spaces. The project emphasizes spatial efficiency, daylight optimization, and social connectivity through both architectural form and program organization. Image Credit: Samuele Agrimi, Niels Nygaard ## Trend Insights (Trend Hunter) - Score: 3.3/10 - Popularity: 30% | Activity: 14% | Freshness: 56% - Audience gender: 50% men, 50% women - Primary generations: Gen Z, Millennial, Gen X - Top markets: Europe ## Categories [Trend Hunter](https://www.trendhunter.com/trends) > [Art & Design](https://www.trendhunter.com/artdesign) ## Key Themes ### What's Driving This Trend - **Accordion-like Architectural Designs:** The use of zigzag facade profiles in residential buildings shapes a new architectural style that harmonizes aesthetics with functional benefits like daylight enhancement and ventilation. - **Compact Urban Living Solutions:** With a focus on creating efficient living spaces, this trend highlights the increasing demand for compact private units paired with communal areas in urban environments. - **Socially Integrated Housing Developments:** As housing projects incorporate shared spaces and interactions among residents, this design philosophy stresses the importance of social connectivity as a pivotal element in urban planning. ### Who This Affects Most - **Sustainable Architecture:** Transformative ideas in sustainable architecture emerge as buildings adopt geometric innovations to improve natural light and ventilation, leading to more energy-efficient urban residences. - **Urban Real Estate Development:** Pioneering projects like this redefine urban residential developments by integrating public amenities and community-oriented designs into compact living arrangements. - **Furniture and Interior Solutions:** The shift towards compact, versatile living spaces generates demand for innovative furniture and interior designs that maximize functionality in limited areas. ## Related on Trend Hunter - [Stealthy All-Black Timepieces](https://www.trendhunter.com/trends/unimatic-x-maxfield-modello-tre-u3sm-chronograph-watch.md) - [Holiday Sneaker Collabs](https://www.trendhunter.com/trends/palace-x-nike-dn8.md) - [Sensory EV Exhibitions](https://www.trendhunter.com/trends/rewilding-the-future.md) - [Minimal Tailored Fall Fashion](https://www.trendhunter.com/trends/galilee-by-sea.md) - [Minimal Sculpted Mules](https://www.trendhunter.com/trends/adifom-iiinfinity-mule.md) - [Wearable Light Therapy](https://www.trendhunter.com/trends/move-20.md) - [Compostable Sauce Containers](https://www.trendhunter.com/trends/holy-carp-packaging.md) - [Concrete Pavilion Residences](https://www.trendhunter.com/trends/rancho-del-bosque.md) - [Layered Cafe Interiors](https://www.trendhunter.com/trends/joe-blakes-holborn.md)