Coventry Overheating Assessments (Part O – Building Regulations)

Fully compliant Part O overheating assessments for new residential developments in Coventry

ICMI Associates provides fast, accurate Part O Overheating Assessments to ensure your new build project in Coventry meets the latest Building Regulations. Whether you’re a developer, architect, or self‑builder, we help you demonstrate compliance with Part O by assessing solar gains, ventilation, shading, and internal temperature risk.

Our assessments follow the approved Simplified Method or TM59 Dynamic Thermal Modelling, depending on your project’s complexity.

⭐ Why Part O Matters

Since June 2022, Part O of the Building Regulations has been mandatory for all new residential buildings in England. It ensures homes are designed to avoid excessive heat during summer months — a growing issue due to airtight construction, large glazing areas, and climate change.

A Part O Overheating Assessment is required for your project in Coventry:

• New build houses
• New build flats
• Residential conversions (where applicable)
• Student accommodation
• Care homes and assisted living units

Without a compliant overheating report, Building Control cannot sign off the dwelling.

What Our Overheating Assessment Includes

We assess your design using one of the two approved compliance routes:

1. Simplified Method (Part O)

Ideal for straightforward designs. We check:

• Maximum glazing limits
• Orientation‑based solar gain allowances
• Shading requirements
• Ventilation openings and free area calculations
• Cross‑ventilation feasibility

2. TM59 Dynamic Thermal Modelling

Required for more complex or high‑risk dwellings. We simulate:

• Hour‑by‑hour internal temperatures
• Solar gains and shading performance
• Ventilation effectiveness
• Night‑time cooling
• Occupant comfort thresholds

TM59 modelling is essential for:

• Houses with large glazing areas
• Complex architectural designs
• Flats and Student Accommodation
• Single‑aspect apartments
• High‑risk locations (London, urban areas)

📄 What You Receive

• A fully compliant Part O Overheating Report
• Clear pass/fail results
• Practical mitigation options if improvements are needed
• Fast turnaround and direct communication
• Reports accepted by Building Control nationwide
  

📥 What We Need From You

• To begin your assessment, simply send:
• Floor plans, elevations, and sections
• Window and door schedule
• Ventilation strategy (trickle vents, MEV, MVHR, etc.)
• Shading details (overhangs, balconies, external shading)
• Site address and postcode

If you’re unsure about any of these, we’ll guide you through it.

 

How Part O Fits With SAP & EPC

Many projects require all three assessments:

Assessment	Regulation	Purpose
SAP Calculation	Part L	Energy efficiency & carbon compliance
EPC Certificate	EPC Regulations	Energy rating for sale/let
Overheating Assessment	Part O	Summer comfort & thermal safety

 

Part O is not an energy assessment — it focuses solely on overheating risk.