Sector: Retail shop
Location: Westfield Stratford City, London, England
Size: 80 m²
Status: Completed Q3 2023
InnoDez UK delivered a focused MEP engineering and energy upgrade for an 80 m² fashion unit at Westfield Stratford City. Within tight landlord constraints and a shallow ceiling zone, the team produced coordinated Mechanical, Electrical and Plumbing design and engineering that improves comfort, cuts energy use, and keeps services visually discreet on the sales floor.
Provide even temperatures across the sales area, quiet operation near the mall concourse, and lighting that renders colours accurately without glare. Avoid visible grilles in the shopfront, route services only through designated risers, and hand over simple controls plus sub-metering so the retailer can track baseload, night presentation, and seasonal changes.
Mechanical: Heat-pump VRF with heat recovery for heating and cooling. Dedicated outdoor air with energy recovery, sized to occupancy, with CO₂-based demand control. Low-velocity linear slot supply at the shopfront to prevent draughts, return via concealed shadow-gap grilles.
Electrical: New distribution board with spare ways and sub-metering for HVAC, lighting, and small power. High efficacy LED scheme with adjustable track spots for merchandise focus and concealed linear accents for perimeter wash. Surge protection and RCDs to BS 7671.
Plumbing: Compact back-of-house tea point with point-of-use water heater, compliant backflow devices, and condensate routing to trapped gully.
Controls & energy: Three modes set on handover, trading, clean-down, and closed. Occupancy and time-schedule logic to trim lighting and ventilation after hours.
The ceiling depth was preserved by running the main DOAS branch in back-of-house and using slimline linear slots and track lighting on the floor. Fire alarm, PA, and emergency lighting interfaces were documented in an interface schedule for the landlord and Building Control. Sprinkler head moves were coordinated to the new lighting layout, with concealed heads where permitted.
Designed and documented to UK regulations and typical landlord standards, including Part L energy, Part F ventilation, Part B fire, Part M access, BS 7671 electrical, BS 5839 fire detection, and BS 5266 emergency lighting. Acoustic criteria for background noise were achieved using properly selected fans, short flexible connectors, and attenuators sized on third-octave data.
Even temperatures and low background noise on the sales floor during peak footfall.
Colour-accurate, glare-controlled lighting that supports visual merchandising and photography.
Reduced electricity use versus the outgoing fit-out through heat recovery, demand-controlled ventilation, LED lighting, and sub-metering led tuning.
Clear O&M, a one-page user guide, and a seasonal checklist for store staff.