TCSW compliance engineer greeting a homeowner at the door

About us

Who we are

Two decades of property compliance, retrofit and heritage expertise — born and based in Cornwall.

Truro · Cornwall

A Cornish consultancy,
trusted across the Westcountry

We are a Cornish property compliance and retrofit consultancy based in Truro, highly experienced and trusted by landlords, rural estates, local authorities and homeowners across Cornwall and Devon. With more than two decades of delivery, we understand Westcountry homes; from studio flats and modern cavity builds to traditional stone cottages and complex heritage properties.

Our Assessors have delivered major programmes for Caerhays, Tregothnan, Port Eliot, Menabilly, Castle Hill and the Coode family, as well as supporting Cornwall Council and private clients with energy assessments, retrofit planning and compliance management.

Our Managing Director, Charles May brings international property development experience, project delivery expertise and a calm, resident focused approach shaped by years of frontline work.

Surveyor and decorator inspecting a newly renovated room
0+years in property, portfolio project delivery and resident facing work
CaerhaysTregothnanPort EliotMenabillyCastle HillThe Coode FamilyCornwall CouncilCaerhaysTregothnanPort EliotMenabillyCastle HillThe Coode FamilyCornwall Council

Accreditations

Independently accredited,
quality assured

TrustMark Registered Business
ABBE Qualified
ECMK Accredited
Qualified Domestic Energy Assessor
Level 3 Older and Traditional Buildings
PAS 2035 Retrofit Assessor
Level 5 Retrofit Coordinator
DBS Certified Property Professional

These accreditations ensure our work meets national standards for accuracy, governance and evidence integrity. With over twenty years of experience in property, portfolio project delivery and resident facing work on all types of property.

Why trust us

Why trust us with
your property?

Accredited and compliant

Our national accreditations ensure accuracy, governance and evidence integrity.

Twenty years’ experience

Two decades delivering property and portfolio projects across Cornwall and Devon.

Heritage expertise

Specialist knowledge of traditional, listed and complex buildings.

Trusted by major rural Country Estates

Relied upon by rural estates and multi unit portfolios.

Clear, practical guidance

Straightforward advice that removes uncertainty and protects your investment.

Calm, disciplined service

Professional, measured support for landlords who want confidence and compliance.

Let’s talk about your property

Clear, practical guidance from a local, accredited team.