OpTIC Project St Asaph






Shepherd Construction

The client brief called for a building capable of considerable flexibility and utilising green technology to achieve a BREEAM ‘Excellent’ rating as a minimum.


The final proposals included rainwater harvesting, passive ventilation in non-clean room spaces including the double height street atrium between the Incubator Units and Technology Centre, and extensive use of photovoltaic walls to generate energy, which is the largest Copper Indium Discelenide (CIS) photovoltaic array in the world (2004) comprising 1000m2 of panels.

The project was named Sustainable Building of the Year at the 2005 Building Sustainability Awards.

In a scheme expected to safeguard 1000 jobs, the £15.7M OpTIC Technium Centre was commissioned by the Welsh Development Agency for St Asaph Business Park as part of its economic sustainability strategy.

This was a fantastic and prestigious project to be involved with and it continues to be an impressive landmark at the gateway to Wales.


  • 0.8mm thick, Pre-weathered zinc with 25mm high standing seams at 600mm centres
  • Delta Trela underlay
  • 18mm thick, W.B.P. plywood
  • Galvanised steel bracket & rail system
  • 125mm thick, cavity wall insulation
  • Monarflex vapour barrier
  • 19mm thick, Western Red Cedar weatherboarding
  • Tyvek breather membrane
  • Uni-strut support system to the main entrance soffit
  • Rheinzink standing seam cladding
  • Cedar cladding & substrate

What our clients say

"We’re really pleased with the proactive effort put in by Longworth to ensure the desired quality is achieved. The building is well received by everyone and regarded as a success."

Husnee Jamalluddin - Associate, Halsall Lloyd Partnership