Multi-Let Commercial Complex (Leisure & Day Centre)

Multi-tenanted commercial property, Waterlooville – Multi-part Level 3 SBEM assessment comprising three demised commercial units totaling 1,352 m², evaluating air-source heat pump (ASHP) and wet central heating (LTHW) infrastructure.

Retail EPC

📝 The Project

Conducting comprehensive non-domestic EPC assessments across an expansive 1,352 m² multi-let commercial property divided into three independent operational units: a first-floor snooker/sports hall (630.5 m²), the Cubano Beach Club hospitality venue (224.4 m²), and a ground-floor community day care centre (497.1 m²).

The primary technical challenge involved modeling distinct thermal boundaries and contrasting building services within a single commercial development. The leisure and club premises benefit from decentralized Air Source Heat Pump (ASHP) systems providing efficient space heating and cooling, whereas the large-volume day care facility relies on an extensive Low Temperature Hot Water (LTHW) natural gas boiler system with natural ventilation. Accurate thermal zoning and boundary assignments were essential to prevent performance penalties across individual lease boundaries.

Our Approach & Solution Certus Commercial conducted a coordinated site audit and tailored multi-unit modeling strategy:

  • Complex Multi-Tenancy Boundary Modeling: Defined accurate party walls, ceilings, and unconditioned boundary interfaces to isolate each demise cleanly under SBEM calculation methodology.

  • HVAC & Heat Source Disaggregation: Accurately evidenced the high seasonal efficiencies of the air-to-air heat pumps serving the snooker hall and Cubano Beach Club, while auditing emitter layouts and heating controls across the ground-floor wet system.

  • Lighting Infrastructure & Zoned Analysis: Segmented large open-plan hall spaces, leisure zones, and institutional care rooms, evidencing modern controls and lux/efficiency levels to maximize asset ratings.

🏢 Property Type:

Multi-Let Mixed Commercial (Leisure, Hospitality & Community Day Centre)

📐 Building Size

1,352 m² (Combined: 630.5 m², 497.1 m², 224.4 m²)

🏛️ Building Classification

Mixed Use: D2 General Assembly and Leisure plus Night Clubs and Theatres (SBEM Level 3)

🎯 Reason for Assessment:

Lease renewals & MEES portfolio compliance

📊 EPC Rating:

B (Snooker Hall), B (Cubano Beach Club), D (Day Care Centre)

🛠️ Additional Services:

MEES Compliance & Plant Efficiency Advisory

MEES Compliance & Plant Efficiency Advisory

📍 Location:

Waterlooville, Hampshire (PO7)

✅ Project Outcome:

Detailed SBEM thermal zoning and plant validation secured high-performing B ratings for both electrified leisure units, while establishing clear MEES compliance and targeted improvement pathways for the gas-heated day care centre.

  • Final EPC Ratings:

    • First Floor Snooker/Sports Hall: B (34) – Driven by efficient air-source heat pumps and zoned air conditioning.

    • Cubano Beach Club: B (44) – Capitalising on heat pump technology and tailored environmental controls.

    • Ground Floor Day Care Centre: D (93) – MEES compliant, reflecting the heating load of a high-ceiling, expansive footprint served by conventional gas LTHW.

  • MEES Compliance: All three units fully satisfy existing Minimum Energy Efficiency Standards, safeguarding tenancy continuity and commercial lease viability across the entire site.

  • Client Impact: Delivered transparent EPC ratings reflecting actual installed plant performance, alongside targeted plant upgrade recommendations (such as future heat-pump transition and enhanced boiler controls) to advance the day care centre towards higher bands.

Further Resources

📖 Commercial EPC Requirements

Understand when an EPC is legally required

💷 Commercial EPC Costs

How much does a Commercial EPC cost?

📊 Commercial EPC Ratings Explained

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Need a Commercial EPC?

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⭐⭐⭐⭐⭐ 5.0 · Google Reviews

⭐⭐⭐⭐⭐ 5.0 · Google Reviews

⭐⭐⭐⭐⭐ 5.0 · Google Reviews

"Needed an urgent Commercial EPC for our premises in Bexhill-on-Sea and couldn't be happier with the service. George moved his schedule around to fit me in immediately and had the full report completed with incredible turn-around time. Professional, knowledgeable, and extremely efficient. Highly recommend!"

Jake - Property Developer