Louhikkotie 20 – Renovation of Three Apartment Buildings and an Energy-Efficient Future
Louhikkotie 20 is a complex of three residential apartment buildings from the 1960s located in Jakomäki, Helsinki. The site is undergoing an extensive full renovation and plumbing renewal project. Commissioned by the Helsinki City Housing Company (HEKA), the project includes buildings A, B, and C, as well as a comprehensive redesign of the large courtyard area.
The building systems will be completely upgraded: ventilation will be updated to a mechanical supply and exhaust system with heat recovery, all vertical technical lines and wet areas will be renewed, and a hybrid heating solution combining district heating and geothermal heating has been selected. Thirty geothermal wells will be drilled on the site, and solar panels will be installed on the roof—significantly improving the property's energy efficiency (E-values before/after: e.g., Building A: 134 → 94).
The overall project will be complemented by new accessible common areas, laundry facilities, and comfortable courtyard spaces. The courtyard design also takes into account emergency access routes, green areas, and infrastructure for electric vehicle charging.
The Louhikkotie 20 project serves as an example of how older buildings can be modernized to meet today’s technical, ecological, and accessibility standards—while respecting architectural clarity and structural integrity.
