Backland Development
0800 088 6248Free to call Free plot appraisal

Build a home for family in your garden in Caerphilly

For grown-up children in Caerphilly, the step to a first home can be a long one. If your garden is big enough, a small separate house on part of it could become theirs: with its own planning permission and title, it can be mortgaged in their name and sold when they move on.

That asks more of the plot than an annexe does, including its own garden, parking and an access Caerphilly County Borough Council will accept. We look at all of that in a free plot appraisal, then design and build the home if the scheme stacks up and you want to go ahead.

Get a free appraisalCheck my garden
Single-storey garden home with wide glazed doors and a covered porch at the back of a family garden
Planning authority
Caerphilly County Borough Council
Postcodes
CF83
Noon sun, 21 March
About 38°
Shadow from a 5 m eaves line
About 6.3 m
Planning plan
LDP
County
Gwent

What shapes a plot in Caerphilly

Access usually decides what a Caerphilly garden can take. An annexe can often share your drive because it is used with the house, but a separate home needs an access Caerphilly County Borough Council will accept for a dwelling in its own right, with room for cars, bin collection and emergency vehicles. We cover homes in Caerphilly and around Risca, Nelson and Abercarn, 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.

Section showing noon sun and shadows in Caerphilly: about 38 degrees on 21 March and 15 degrees on 21 December21 m21 Mar, noon: sun 38°, shadow 6.3 m21 Dec, noon: sun 15°, shadow 18.7 mExistingNew home
This section is worked out for the latitude of Caerphilly: around 38° 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.

What happens next in Caerphilly

Here’s what happens next for a family home in Caerphilly. 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 Caerphilly County Borough 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. 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.

  4. 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.

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.
  • VAT savings available on a separate dwelling often don’t apply to an annexe; take advice from a tax adviser before choosing.
  • A separate home needs its own garden, parking, bins and access, so it needs more land than an annexe.

Questions about garden plots in Caerphilly

Is CIL payable on a family home in Caerphilly?

Only if Caerphilly County Borough 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 Caerphilly 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 Caerphilly 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. Caerphilly County Borough Council’s council tax team can tell you how the rules apply to your household.

Can you design a home in Caerphilly 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 Caerphilly County Borough 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.

Other options in Caerphilly

Family home in your garden near Caerphilly

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