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Frequently asked questions
Building a residential annexe is a big decision, and it’s natural to have questions along the way. The process can feel unfamiliar at first, but with clear information and the right guidance, it becomes far more straightforward and reassuring.
This page brings together the questions we’re most often asked, from planning and design to construction, funding and day-to-day living.
If you can’t find what you’re looking for, our team is always happy to talk things through and offer clear, practical advice based on your individual circumstances.
General FAQs
What makes Habins different?
What exactly is a residential annexe?
How is an annexe different from a garden room?
Who are residential annexes usually for?
Does an annexe need its own address?
Where can I build an annexe?
Can I rent out my annexe?
Planning FAQs
Do residential annexes need planning permission?
What does ‘ancillary accommodation’ mean?
How long does planning permission take?
Can I build an annexe in the Green Belt or a National Landscape?
Will neighbours be consulted?
What happens if planning permission is refused?
Are annexes allowed in conservation areas?
Who prepares the planning drawings and documents?
Building Regulations and Compliance FAQs
Do residential annexes need building regulations approval?
Will I receive completion certificates?
VAT and Tax Considerations FAQs
Is VAT charged on a residential annexe?
Will an annexe affect my council tax?
Energy Performance FAQs
Are residential annexes expensive to heat?
What insulation standards are used?
What energy rating is my Habin likely to achieve ?
Can renewable energy be included?
Is underfloor heating included?
Are solar panels standard or optional?
Design, Layout and Finishes FAQs
Can I customise the design of my annexe?
What finishes are included?
What is the structure of a Habin made from?
What specification are the windows and doors?
Are Habins designed for later life?
Construction Process FAQs
How long does it take to build a Habin?
Will building work be disruptive?
What if my garden or plot has limited access?
Services and Utilities FAQs
How is the annexe connected to services?
Will the annexe have its own heating system?
Warranty and Aftercare FAQs
Is there a warranty on Habin annexes?
What happens after completion?
Do you offer an aftercare service?
Funding FAQs
What are my options for funding a Habin?
How early should I speak to a finance broker?
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