Bringing Families
Together
Self-contained garden annexes that give your loved ones their own space, just steps from your back door. A Kent family business, building since 2004.
A better way to support your family
When a parent needs more support, families often face a difficult choice. Care homes are expensive and impersonal, but managing from a distance is hard on everyone.
A garden annexe is a practical alternative: a fully self-contained home in your garden with its own kitchen, bathroom, and living space. Your family stays close without living on top of each other.
Three sizes to suit your needs
All prices exclude site preparation. Zero VAT under the Caravan Act. Learn more
Why families choose us
Industry-Leading Insulation
250mm thick walls with double insulation as standard. Keeps heating costs low all year round.
Family Run Since 2004
Over 20 years of building annexes in Kent and London. We do the work ourselves, not subcontractors.
Local to Kent & London
Based in Biggin Hill, we know the local councils and planning requirements across our area.
One Team, Start to Finish
The same people from your first visit through to handover. No being passed between departments.
The Williams Family, Sevenoaks
Sarah's mother needed more day-to-day support but didn't want to move into a care home. The family chose a one-bedroom annexe in their back garden. It was built in 10 weeks, and now she has her own space while the grandchildren are just a few steps away.
"Mum absolutely loves her new home. The quality is exceptional, and having her so close gives us all peace of mind."More family stories
How it works
Five steps from enquiry to move-in. Most builds are completed within 12 weeks.
Site Visit
We come to your home, look at the garden, and talk through what you need.
Design & Quote
We draw up a layout to fit your space and give you a fixed price. No hidden costs.
Planning
We handle the planning side. Most annexes fall under permitted development, so no formal application is needed.
Build
Our team builds the annexe on-site. You will have one point of contact throughout.
Handover
We walk you through everything, hand over the keys, and make sure you are happy.
"One year on it has literally paid for itself compared to care home fees."
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Want to find out if an annexe is right for you?
We will come to your home, look at your garden, and give you honest advice on what is possible. No obligation, no sales pressure.
Or email info@grannexe.co.uk