Backland Development
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Build a home for family in your garden in Bath

If you have a long or wide garden in Bath, there may be room for a home where a parent or grown-up child can live close by with their own front door. That might mean an annexe used with your house, or a home that stands alone with permission and paperwork of its own.

Bath and North East Somerset Council decides either way, so the first step is to find out what your plot can realistically carry. Our free plot appraisal covers access, space, privacy and the main planning constraints, and talks through who the home is for, before you spend any money on drawings.

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Single-storey garden home with wide glazed doors and a covered porch at the back of a family garden
Planning authority
Bath and North East Somerset Council
Postcodes
BA1, BA2
Noon sun, 21 March
About 39°
Shadow from a 5 m eaves line
About 6.3 m
Planning plan
Local Plan
County
Somerset

Bath: light, access and policy

People living next door are consulted on every planning application, and across BA1 and BA2 that applies to a family annexe just as much as to a new house. Their privacy, outlook and light carry real weight with Bath and North East Somerset Council. A design that keeps upper windows away from adjoining gardens, uses obscure glazing where it has to, and leaves a planted margin along the boundary gives the council fewer reasons to refuse. A quiet word with the people either side before the application goes in is often worthwhile too.

Section showing noon sun and shadows in Bath: about 39 degrees on 21 March and 15 degrees on 21 December21 m21 Mar, noon: sun 39°, shadow 6.3 m21 Dec, noon: sun 15°, shadow 18.4 mExistingNew home
This section is worked out for the latitude of Bath: around 39° of sun at midday in late March and about 15° at midwinter. It shows why the gap between your house and a new home behind it is about light as well as privacy. Garden assumed to face north.

How we’d take it forward in Bath

Here’s what happens next for a family home in Bath. You tell us about your plot and who the home is for, and we carry out a free desktop appraisal of access, space and the planning context. If it looks viable we visit, then set out the annexe and separate-home options. With your go-ahead we survey, design and give you a written quote, then prepare the application for Bath and North East Somerset Council.

  1. 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.

  2. 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.

  3. 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 is in place and any CIL exemption has been claimed.

  4. 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.

Worth checking early

  • Planning is the council’s decision, and an annexe is not a way round the rules that apply to a new house.
  • A separate home needs its own garden, parking, bins and access, so it needs more land than an annexe.
  • VAT savings available on a separate dwelling often don’t apply to an annexe; take advice from a tax adviser before choosing.

Questions about garden plots in Bath

Who owns an annexe built in my Bath garden?

You do. An annexe stays on the title of your house and usually carries a planning condition tying it to the main home, so it can’t be transferred to the relative living in it. If a family member is paying towards it, record what they’ve put in and what happens on a sale in a written agreement drawn up by a solicitor.

Do I need planning permission for a granny annexe in Bath?

Yes, almost always for a detached annexe with its own kitchen, bathroom and bedroom. Bath and North East Somerset Council will treat it as accommodation linked to your home and will usually add a condition so it can’t be let or sold separately. A garden building used only as a home office or gym is a different matter, but sleeping and cooking take it beyond those allowances.

Can you design a home in Bath for a relative who uses a wheelchair?

Yes. The design can include a level approach and threshold, turning space in each room, a wet room, wider doors and worktops at a usable height. Where Bath and North East Somerset Council requires a particular access standard through planning, the design meets it; otherwise it’s your choice how far to go. Input from your relative’s occupational therapist is well worth having.

Will an annexe in Bath put up my council tax?

It might. Annexes can be banded separately, but exemptions exist for annexes lived in by certain dependent relatives, and in some cases a discount applies where family live there or the annexe is used as part of the main home. Who qualifies depends on the relative’s circumstances and how the annexe is used. Bath and North East Somerset Council’s council tax team can tell you how the rules apply to your household.

Other options in Bath

Family home in your garden near Bath

Find out what your garden could become

Free garden plot appraisal. No cost, no obligation, and a straight answer if it won’t work.

Get my free appraisal 0800 088 6248