Backland Development
0800 088 6248Free to call Free plot appraisal

Build a home for family in your garden in Tonbridge

If you have a long or wide garden in Tonbridge, 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.

Tonbridge and Malling Borough 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
Tonbridge and Malling Borough Council
Postcodes
TN9, TN10, TN11
Noon sun, 21 March
About 39°
Shadow from a 5 m eaves line
About 6.2 m
Planning plan
Local Plan
County
Kent

What the council will look at in Tonbridge

Access usually decides what a Tonbridge garden can take. An annexe can often share your drive because it is used with the house, but a separate home needs an access Tonbridge and Malling Borough Council will accept for a dwelling in its own right, with room for cars, bin collection and emergency vehicles. We cover homes in Tonbridge and around Tunbridge Wells, Sevenoaks and Maidstone, 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 Tonbridge: about 39 degrees on 21 March and 15 degrees on 21 December21 m21 Mar, noon: sun 39°, shadow 6.2 m21 Dec, noon: sun 15°, shadow 18.2 mExistingNew home
Noon sun in Tonbridge on 21 March sits about 39° above the horizon, so a typical two-storey eaves line (about 5 m) throws a shadow of roughly 6.2 m. In December the sun is only about 15° up and shadows stretch much further. Drawn for a garden facing north, where it matters most.

How we’d take it forward in Tonbridge

From first call to keys, a family home in Tonbridge follows a clear order. Free appraisal and site visit; measured survey and design around the person moving in; a planning application to Tonbridge and Malling Borough Council; approval under the Building Regulations and any CIL exemption claimed before work starts; then the build, with you living next door throughout. You receive a written quote after design and survey, and we keep the household updated at each stage.

  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

  • A separate home needs its own garden, parking, bins and access, so it needs more land than an annexe.
  • Planning is the council’s decision, and an annexe is not a way round the rules that apply to a new house.
  • 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.

Tonbridge: questions to ask

Can I build a separate house in my Tonbridge garden for my son or daughter?

Possibly, if the plot can work as a home in its own right. Tonbridge and Malling Borough 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.

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

Yes, almost always for a detached annexe with its own kitchen, bathroom and bedroom. Tonbridge and Malling Borough 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.

Is CIL payable on a family home in Tonbridge?

Only if Tonbridge and Malling 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.

How long will building work disrupt my home in Tonbridge?

A single garden home usually takes several months on site, with the noisiest work, such as groundworks, drainage and heavy deliveries, concentrated near the start. We agree working hours, access and parking with you up front, and with the people next door where it affects them, so your household knows what each week will look like.

Other options in Tonbridge

Family home in your garden near Tonbridge

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