Residential Development TM59 Overheating Assessment
Budget: £20 – £250 GBP
Project Title
TM59 Overheating Assessment (Part O Compliance) — Residential Development
Project Description
I need a CIBSE TM59 overheating assessment to demonstrate compliance with Approved Document O for Building Control sign-off.
Scope of Work:
Carry out dynamic thermal modelling of a new residential development ([insert number of dwellings/units here]) at [insert site location/postcode].
Use approved software: IESVE, DesignBuilder (EnergyPlus), or TAS.
Use correct CIBSE Design Summer Year (DSY) weather file for the site location.
Apply CIBSE TM59 criteria:
Criterion A: occupied hours (no more than 3% above Tmax+1 K, May–Sept).
Criterion B: bedrooms, night hours (no more than 1% above 26°C).
Provide mitigation advice if criteria are not met (e.g. shading, g-values, purge/free area).
Deliverables:
TM59 Overheating Report (PDF) suitable for Building Control, including:
Executive summary with pass/fail outcomes.
Assumptions (fabric, glazing, ventilation, occupancy, gains).
Room-by-room results (tables and graphs).
Mitigation recommendations if needed.
Appendix B Part O checklist completed.
Optional: raw simulation outputs for audit.
Inputs I will provide to the successful freelancer:
Architectural drawings (plans, sections, elevations).
Window and door schedules (sizes, openings, free areas).
Glazing performance data (g-values, U-values, frame factors).
Ventilation strategy (background, purge, MVHR/MEV if used).
Thermal performance (U-values, thermal mass).
Room uses and occupancies.
Required Skills / Experience
Proven experience producing TM59 overheating assessments.
Proficiency with IESVE, DesignBuilder (EnergyPlus), or TAS.
Knowledge of Part O (England/Wales) and Building Control expectations.
Ability to provide previous sample reports (with sensitive data redacted).
Information I Need to Quote Accurately
When bidding, please confirm:
Which software you will use.
Example TM59 reports you’ve completed (with sensitive details removed).
Your typical turnaround time for a project of this size.
Whether your fee includes mitigation scenarios (e.g. re-runs with shading or vent changes).
Any professional memberships (e.g. CIBSE Low Carbon Consultant – DSM).
Other Details
Files will be shared after contract award.
TM59 Overheating Assessment (Part O Compliance) — Residential Development
Project Description
I need a CIBSE TM59 overheating assessment to demonstrate compliance with Approved Document O for Building Control sign-off.
Scope of Work:
Carry out dynamic thermal modelling of a new residential development ([insert number of dwellings/units here]) at [insert site location/postcode].
Use approved software: IESVE, DesignBuilder (EnergyPlus), or TAS.
Use correct CIBSE Design Summer Year (DSY) weather file for the site location.
Apply CIBSE TM59 criteria:
Criterion A: occupied hours (no more than 3% above Tmax+1 K, May–Sept).
Criterion B: bedrooms, night hours (no more than 1% above 26°C).
Provide mitigation advice if criteria are not met (e.g. shading, g-values, purge/free area).
Deliverables:
TM59 Overheating Report (PDF) suitable for Building Control, including:
Executive summary with pass/fail outcomes.
Assumptions (fabric, glazing, ventilation, occupancy, gains).
Room-by-room results (tables and graphs).
Mitigation recommendations if needed.
Appendix B Part O checklist completed.
Optional: raw simulation outputs for audit.
Inputs I will provide to the successful freelancer:
Architectural drawings (plans, sections, elevations).
Window and door schedules (sizes, openings, free areas).
Glazing performance data (g-values, U-values, frame factors).
Ventilation strategy (background, purge, MVHR/MEV if used).
Thermal performance (U-values, thermal mass).
Room uses and occupancies.
Required Skills / Experience
Proven experience producing TM59 overheating assessments.
Proficiency with IESVE, DesignBuilder (EnergyPlus), or TAS.
Knowledge of Part O (England/Wales) and Building Control expectations.
Ability to provide previous sample reports (with sensitive data redacted).
Information I Need to Quote Accurately
When bidding, please confirm:
Which software you will use.
Example TM59 reports you’ve completed (with sensitive details removed).
Your typical turnaround time for a project of this size.
Whether your fee includes mitigation scenarios (e.g. re-runs with shading or vent changes).
Any professional memberships (e.g. CIBSE Low Carbon Consultant – DSM).
Other Details
Files will be shared after contract award.