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🟩 GreenBricks Building of the Week 🟩 HYLO

High green


In London’s Silicon roundabout, HYLO melds old and new. An ambitious “cut-and-carve” job – stripping the 16-storey 1960s block back to its concrete skeleton – while adding 13 storeys atop.


📍Location

London, EC1


🏢Building Details

  • Retrofit + extension of vacant 1960s high-rise, completed 2021

  • 13 new storeys (+70% height) added to original superstructure: total 28 storeys = 258,000 sq. ft. office space + 17,000 sq. ft. retail

  • 2022 RICS Award Winner – Commercial Project of the Year


👷🏾‍♀️Developer & Contractor


✍️Architects & Engineers


🌱Sustainability

  • BREEAM Excellent

  • 100% of existing foundations retained + 60 existing piles + majority of frame = 2,500T of CO2 saved: lettable area doubled, while reducing upfront carbon by 35%

  • Over a typical 10 year lease, a carbon saving of 25% is estimated compared to leasing a new building

  • Water consumption meets highest BREEAM standards: rainwater harvesting helps reduce reliance on mains supply by 50%

  • Exposed thermal mass of concrete soffits instead of suspended ceilings reduces cooling loads + draws heat away naturally; ventilation at night in summer months pre-cools exposed concrete slabs, using less carbon


🥦 Wellbeing

  • WELL Gold (Platinum Ready) + WiredScore Platinum

  • Enhanced ventilation system with high grade filters + CO2 sensors = 100% fresh air with no recirculation

  • 11,000 sq. ft. of outdoor terraces created from massing cutbacks + rooftop garden with space for occupants to grow their own veg

  • Bespoke HYLO building app puts users in total control: desk booking, light + climate settings, concierge services, local amenities + discount offers

  • Car free: 85 parking spaces replaced with 407 cycle racks, lockers + hotel-quality changing facilities


🎈Bonus feature

The building also includes 25 high-quality, 100% social rent tenure housing units: contributing to meeting the Borough of Islington’s housing targets and local needs.


🔗 Check it out https://hylo-london.com/




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