Build a home for family in your garden in Deeside

Two households, one plot: that’s the idea behind a family home in a Deeside garden. Done well, each has privacy and a front door, yet help is a few steps away. Done badly, it can strain relationships and leave a building nobody can use when circumstances change.

The difference lies mostly in the planning route and the layout. Backland Development is a new S&K Group brand offering design and build to homeowners in Deeside and the surrounding area, and each project begins with a free plot appraisal that weighs an annexe against a separate home for your family.

Single-storey garden home with wide glazed doors and a covered porch at the back of a family garden
Planning authority
Flintshire County Council
Postcodes
CH5
Noon sun, 21 March
About 37°
Shadow from a 5 m eaves line
About 6.7 m
Planning plan
LDP
County
Clwyd

Before you decide in Deeside

A measured survey is where a family home in Deeside stops being an idea and becomes a plan. We record boundaries, levels, trees, drains and the windows of your house and the houses next door, then test where the new building can sit. With the spring equinox sun standing near 37° at midday here, a 5 m eaves line throws a noon shadow close to 6.7 m; drawing that onto the survey shows which positions keep light in the main rooms of both homes. Flintshire County Council will expect to see the same evidence with the application.

Section showing noon sun and shadows in Deeside: about 37 degrees on 21 March and 13 degrees on 21 December21 m21 Mar, noon: sun 37°, shadow 6.7 m21 Dec, noon: sun 13°, shadow 21.1 mExistingNew home
This section is worked out for the latitude of Deeside: around 37° of sun at midday in late March and about 13° 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.

From first call to decision

Getting started in Deeside costs nothing. Send us a few photos of your garden and the way in, or simply call, and we’ll look at the plot from the desk and talk through your family’s plans. If there’s a realistic scheme, we arrange a site visit. Survey and design are quoted in writing before you commit, and the build price follows once the design is settled.

  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. 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

  • A separate home needs its own garden, parking, bins and access, so it needs more land than an annexe.
  • 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.
  • An annexe tied by planning condition usually can’t be sold or let separately, which limits flexibility later.

Your questions, answered for Deeside

Is CIL payable on a family home in Deeside?

Only if Flintshire County 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.

How much garden do I need for a family home in Deeside?

There’s no fixed figure. A single-storey annexe close to the house can work on a smaller plot than a separate dwelling, which needs its own garden, parking and access. What matters is whether Flintshire County Council can be satisfied on privacy, daylight and the space left for both homes. The free appraisal gives you a first view based on your plot’s actual shape and access.

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

Yes, almost always for a detached annexe with its own kitchen, bathroom and bedroom. Flintshire County 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 Deeside 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 Flintshire County 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 Deeside

Family home in your garden near Deeside

Find out what your garden could become

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