KERNGARTEN

Location: Oberwil, Basel Landschaft
Program: Residential
Size: 1300 m2
Year: 2023-2024
Status: Building permission received

"kerngarten: a high-end terraced jewel in the heart of oberwil"
concept development
project story

context

The new multi-family house in Oberwil, 6 kilometers from Basel City, offers convenience with a 5-minute walk to Oberwil train station via Kerngartenstrasse. Surrounded by mid-priced multi-family homes and commercial units in a green, all-age-friendly neighborhood. The existing1950 building, originally an auto garage, expanded over the years with a 1968underground parking addition, altering the terrain significantly. It sits in a tranquil residential and business area, with tram tracks defining the east boundary. Garage modifications included excavation for underground parking accessed via two ramps, addressing soil contamination and elevation differences in the new design.

CONCEPT

This multi-family house comprises three floors with a height of 12.45 meters and features an exterior with grey plaster and wooden slats, seamlessly blending into the neighborhood. Notably, cantilevered concrete slabs offer shade and privacy, designed with precision based on sunlight, privacy, and noise parameters. The building offers 10 residential units, including a penthouse with a terrace. The interior design includes balconies/terraces in each apartment, open kitchens, and high-quality finishes.

CONTENT

The landscaping plan for the new building includes various activity and relaxation zones, featuring seasonal blooms, tree, and shrub planting. The site redevelopment focuses on restoring the natural terrain by altering slopes and minimizing artificial drainage, except near the main entrance for rainwater collection. Existing hard surfaces will be replaced with new vegetation. A hedge will provide visual and noise screening. Considerations include fire department vehicle placement, a new ventilation duct, waste collection area, and 15 outdoor bicycle parking spaces. A railing will enhance safety along the new garage ramp.
DRAWINGS
team

Project Lead: Patrice Gruner, Jose Gonzalez Menendez
Architects: Kristina Schramm, Kamile Kesylyte, Leandro Waquim, Tosca Audouin



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