Senior Team

We help clients all over the UK across a wide variety of projects. Therefore, you may also meet members of our extended team of BE consultants, engineers and assessors.


Pete Mitchell – Director

Pete founded the business in 2007 whilst he was renovating properties on the south coast. He is a qualified On-Construction Domestic Energy Assessor (CertOCDEA), Level 4 Non-Domestic Energy Assessor (DipNDEA), Code for Sustainable Homes Assessor, an accredited Air Leakage Testing Engineer and a member of the Passivhaus Trust.

Outside of BE Pete is kept extremely busy by 3 children, but when he’s really got time on his hands you will generally find him outdoors, by water and fishing!

Stephanie Stones – Operations

Steph manages our operations, project delivery and the coordination of our test engineers and subconsultants.

Steph has a passion for languages and enjoys teaching Spanish and French. She also enjoys wine – which was a very helpful pairing when we recently had to converse with a Uruguayan wine merchant! We kid you not.

Sean Mills – Sustainability Lead

Sean heads up our sustainability projects. He is a qualified Code for Sustainable Homes, Home Quality Mark and BREEAM assessor. Sean also works on many of our Part L assessments as well as planning stage work for London schemes.

Sean’s passions include live music and travel, although he’s recently discovered the joys of running.

Mitch Finn – Technical Lead

Mitch is a qualified On-Construction Domestic Energy Assessor (CertOCDEA) and a Level 4 Non-Domestic Energy Assessor (DipNDEA). Mitch keeps us plugged in to the ever changing technical landscape, leads our CPD training, and generally explains things to us that we don’t understand.

Mitch also teaches Maths and Physics outside of work and volunteers for the Sustainable Dorset project.

Natalie Wheeler – Residential Projects

Natalie is a qualified On-Construction Domestic Energy Assessor (CertOCDEA). Having a particular interest in self builds Natalie leads our residential schemes of all sizes and much of the associated planning stage reporting.

Outside of work you’ll find Natalie spending her free time with her family or lost in the forest with the dogs!

Sarah Mitchell – Business Development

Sarah joined us from corporate life, bringing her unique zeal and positivity to our business and clients. We don’t know how we lived without her. Sarah manages our client relationships and is constantly striving to grow our business with more and more interesting and varied clients across the UK.

Sarah is a very busy Mum of (yep you guessed it) 3, but will always find the time for a windy run by the sea, often rehydrating with a large glass of white wine.