- Planning authority
- Somerset Council
- Postcodes
- BA11
- Noon sun, 21 March
- About 39°
- Shadow from a 5 m eaves line
- About 6.2 m
- Planning plan
- Local Plan
- County
- Somerset
Before you decide in Frome
Access usually decides what a Frome garden can take. An annexe can often share your drive because it is used with the house, but a separate home needs an access Somerset Council will accept for a dwelling in its own right, with room for cars, bin collection and emergency vehicles. We cover homes in Frome and around Westbury, Warminster and Trowbridge, and on every plot we measure the drive width, the view along the road where the access joins it, and how far bins would need to travel, before anyone draws a plan.
The next steps, locally
The next step is a conversation, by phone or through the form, about your garden in Frome and who the new home is for. We check access, title, the main planning constraints and any CIL position for your address, then tell you whether an annexe, a separate home or neither looks realistic. If neither does, we’ll say so and explain why.
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.
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 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.
Worth checking early
- CIL exemptions are lost if work starts before the claim is made, and can be withdrawn if the home is sold or let within three years.
- Planning is the council’s decision, and an annexe is not a way round the rules that apply to a new house.
- 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 Frome
Can I build a separate house in my Frome garden for my son or daughter?
Possibly, if the plot can work as a home in its own right. Somerset Council will look at access, parking, garden space for both houses, privacy and the character of the street, as it would for any new house. If permission is granted, the plot can be transferred to your child with its own title, with your lender’s consent if the house is mortgaged.
Is CIL payable on a family home in Frome?
Only if Somerset Council has adopted the Community Infrastructure Levy, which its website will confirm, and we check it for you during the appraisal. Where it applies, self-build and residential annexe exemptions exist, but both must be claimed before work starts and can be withdrawn if the home is sold or let within three years of completion.
Who owns an annexe built in my Frome 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.
Will an annexe in Frome 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. Somerset Council’s council tax team can tell you how the rules apply to your household.
Other options in Frome
- Combine gardens with your neighbours
- Large rear gardens
- Sell part of your garden
- Joint venture on your garden plot
- Garage courts and yards
- Tandem and landlocked plots

