01884 242050

info@aessc.co.uk
/ /

Job listing

Back to Careers

Sustainability Consultant (Overheating)

Salary range: £30,000 to £35,000

per annum depending on experience

Posted by SARAH MITCHELL on SEPTEMBER 15TH, 2026

Sustainability Consultant (Overheating)

Who Are We?

AES Sustainability Ltd is an award-winning consultancy firm that works with some of the leading UK housebuilders and developers, delivering high quality energy and sustainability advice and assessments to the construction and property industries.

We’re looking for a Sustainability Consultant with experience of delivering TM59 Overheating assessments in accordance with Part O regulations. In this remote role, you’ll produce overheating assessments for major residential developments, supporting our clients in meeting Part O requirements and achieving their sustainability objectives. If you’re detail-oriented, proactive, and passionate about energy efficiency, this is an opportunity to make a real impact while enjoying flexible working and career development.

The successful candidate will be an enthusiastic, self-motivated sustainability consultant capable of producing TM59 assessments for large national developers ideally using DesignBuilder software. The ideal candidate will be a collaborative team player with strong interpersonal and communication skills, capable of building effective working relationships with colleagues and clients. Good attention to detail is essential as the role requires a high degree of accuracy and organisational skills.

Job Responsibilities

  • Provision of overheating assessments using DesignBuilder to ensure our clients achieve compliance with Part O

  • Managing projects comprising a small number of services, including planning and tracking progress against deadlines, coordinating inputs, and escalating issues where necessary

  • Active engagement with the client and design team to ensure that sustainability requirements are taken into consideration and achieved over the lifecycle of the development

  • Providing high quality consultancy and written reports at land purchase and planning stage to ensure that planning requirements are met

  • Utilisation of resources from within the team to ensure that the client receives timely, high-quality advice and assessments

Please note: This list covers the core responsibilities but isn’t exhaustive. As the team continues to grow and develop, there may be additional opportunities to contribute and take on new tasks to support the department.

Preferred Qualifications, Skills & Experience

Essential

  • Be conversant with Building Regulations throughout the UK, with particular expertise in Part O and awareness of how Part L requirements interact with compliance

  • Demonstrable experience of using DesignBuilder software

  • Able to communicate with clients effectively and confidently via telephone, email and face-to-face

  • Excellent written communication skills

  • Excellent computer skills and a good level of general education, particularly in Maths, Science and English

  • Ability to self-manage a busy and time-critical schedule of work

  • Be able to work independently and as part of a team

  • Client-focused with a commitment to providing high-quality support

Desirable

  • Be an accredited On Construction Domestic Energy Assessor (OCDEA)

  • Experience in delivering SAP assessments (Part L), PSI Values, or SBEM would be advantageous, and we welcome candidates who are keen to broaden their expertise in these areas.

  • Have experience of providing consultancy at planning stage and writing energy/sustainability strategies

  • Have a good working knowledge of non-residential development

  • Have an ability to visualise in 3D and interpret technical drawings

  • Conversant with M&E specifications

What makes us unique:

What makes AES different than others within the industry is our company values.

·         Striving for the highest quality

·         Build collaborative and supportive relationships

·         Value integrity and independence

·         Be forward thinking and innovative

We are passionate about providing a flexible working environment, including remote working, flexible hours and early Friday finish.

Our Benefits:

We have built strong internal communication channels with team strategy and away days, company-wide social events through the year and a strong investment into internal growth and progression.

  • 25 days annual leave allowance, plus statutory bank holidays

  • 1 paid Community Day per year to volunteer in your community

  • Holiday purchase scheme of up to 5 days

  • Contributory company pension scheme

  • Company Sick Pay scheme

  • Staff social events

  • Flexible hours

  • Remote working

  • Life assurance

  • Electric vehicle scheme

  • Healthcare plan

How to apply

AES is a proud equal opportunities employer.

Due to the high volume of applications we receive for these roles, we do reserve the right to close the vacancy once a suitable amount of applications are received, therefore we encourage you to apply as soon as possible.

Applicants must have the right to work in the UK as AES are not able to offer sponsorship at this time.

Please email your CV and cover letter to recruitment@aessc.co.uk or fill out the form below.

Download full job description

Application

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Get in touch

Quick links

Address

AES Sustainability Limited
4b Oaklands Court
Tiverton Way
Tiverton Business Park
Tiverton
Devon EX16 6TG

Contact

01884 242050

info@aessc.co.uk
/ /
Copyright © 2026 AES Sustainability Consultants

Designed by Optix Solutions. Developed by morphsites®