- Nation
- Wales
- National planning policy
- Planning Policy Wales
- Planning authorities
- 2
- City
- Bangor
How councils in Gwynedd look at it
Councils across Gwynedd tend to look harder at a separate home in a back garden than at an annexe linked to the main house. A separate dwelling has to stand on its own, with its own garden, parking, bins and sprinklers, which every new home in Wales must have. An annexe usually needs less, but the council will want to see that it really will be used with the house, and will normally add a condition to keep it that way. The shape, width and access of your plot usually decide which case is stronger.
Planning authorities covering Gwynedd include Gwynedd Council, Isle of Anglesey County Council.
How it works
Free plot appraisal
We look at your plot, access and the planning picture from the desk, talk through who will live in the new home, and visit if it looks viable. There’s no cost and no obligation.
Annexe or separate home
We set out both routes for your plot, covering what each means for planning, ownership, council tax, CIL and VAT, so you can decide with your family and advisers before design starts.
Survey and design
A measured survey, then a design built around the person moving in: step-free routes, a ground-floor bedroom if needed and privacy for both households. You get a written quote after design and survey.
Planning and approvals
We prepare and submit the planning application and manage it with the council, which makes the decision. Before work starts, approval under the Building Regulations as they apply in Wales is in place and any CIL exemption has been claimed.
Build and handover
We build while you carry on living next door, with access, deliveries and working hours agreed up front. At handover you get the completion certificate and the paperwork you’ll need for council tax, lenders and any VAT claim.
Family home in your garden in towns across Gwynedd
Questions about family home in your garden in Gwynedd
What rules apply to a family home in Gwynedd?
National policy in Wales sets the framework through Planning Policy Wales (PPW). Each council then applies its own LDP policies, along with the council’s supplementary planning guidance and Technical Advice Note 12 on design where relevant. The building must also meet the Building Regulations as they apply in Wales, and you need to plan for sprinklers, which every new home in Wales must have. If the home is for an older relative, it is worth designing to a higher access standard from the start.
How long does planning take for an annexe in Gwynedd?
Usually a few months from a valid application, though it varies between councils and with how many changes are needed. Applications that draw objections or need extra reports take longer. Pre-application advice adds time at the start but often saves it later by flagging problems before you apply.
Do you build family homes across all of Gwynedd?
Yes, we cover garden plots throughout Gwynedd, including in and around Bangor, Holyhead, Caernarfon and Llangefni. Every enquiry starts with a free desktop appraisal of the plot and the planning context, and we arrange a site visit if the scheme looks viable. Design, planning and build follow only if you decide to go ahead.
Do I need my own solicitor to sell a plot in Gwynedd?
Yes, always. Your solicitor checks the contract, deals with the transfer of part at HM Land Registry and asks your mortgage lender to release the plot if the house is mortgaged. On option and promotion agreements we cover your reasonable legal fees, with the cap agreed in heads of terms before work starts.