Granny annexes ↗
Independent living close to family, with a layout shaped around the people who will use it.
+44 7966800519
costi@trj-construction.co.uk
TRJ CONSTRUCTION · LET’S BUILD YOUR NEXT CHAPTER
An idea in your garden.
A conversation that brings it closer.
A granny annexe for family. A garden room for yourself. More space in the home you love. Tell us what you have in mind and we will help you explore the next step.
Bespoke SIP buildings · North London & the Home Counties

07966 800519 ↗
A straightforward conversation about your idea.02 / SEND YOUR IDEAScosti@trj-construction.co.uk ↗
Share your questions, plans or project details.03 / START HEREMake a project enquiry ↓
Use the form below to start the conversation.YOUR PROJECT STARTS WITH YOU
Share a little about the space you want to create. A member of the TRJ team will get back to you to discuss the possibilities and the information needed for a tailored quotation.

Prefer to speak? Call 07966 800519 or email costi@trj-construction.co.uk.
We use the details you provide to respond to your enquiry.
WHAT WOULD YOU LIKE TO CREATE?
Explore a little further,
then tell us what feels right for you.
Independent living close to family, with a layout shaped around the people who will use it.
Insulated SIP spaces for work, wellbeing, creative pursuits and everyday life.
Discuss more room within the home you love, from your first idea through to an agreed project scope.
A SIMPLE PLACE TO BEGIN
No finished design needed.
Start with what you know.
Tell us the location, intended use and the space you have available.
Discuss access, layout, finishes and any individual requirements.
Consider the site, approvals and information needed for the proposed build.
Develop the details for an individual quotation and project scope.
LOCAL EXPERIENCE. PERSONAL ATTENTION.
We work across Hertfordshire, Buckinghamshire, Essex and North London. From the first conversation, the design starts with your site, your needs and the way you want to live. Send your postcode to confirm arrangements for your location.
BEFORE YOU GET IN TOUCH
Tell us your postcode, what you would like to build, an approximate size and how you want to use the space. Garden and access photographs or initial plans are helpful. Include any priorities for layout, finishes or accessibility.
Yes. You can contact TRJ with an initial idea. We can discuss how the space will be used, garden suitability and the next steps toward a layout and quotation.
TRJ Construction works across North London, Hertfordshire, Buckinghamshire and surrounding counties, including Essex. Send your postcode so we can confirm arrangements for your location.
We can discuss the planning and building-control route for your proposed project and the support included in the agreed scope. Requirements depend on the property, design and intended use.
The form starts a conversation. A tailored quotation depends on the proposed size, layout, specification, access, ground conditions and service connections, so these details need to be discussed first.