Backland Development
0800 088 6248Free to call Free plot appraisal

Build a new home in your garden in Tonbridge

If you own a house in Tonbridge with a long or wide garden, you don’t have to sell the land to benefit from it. We can design a separate new home for the plot, apply to Tonbridge and Malling Borough Council for planning permission, and build it while you carry on living next door.

When it’s finished, the house is yours to sell, let or keep for family. As a new name in the S&K Group we don’t trade on past jobs; every project starts the same way: a free, no-obligation appraisal of your garden, then a measured survey and design, then a written quote once the real costs are known.

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Timber-frame house under construction with scaffolding at the bottom of a back garden, seen from the patio
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

The local picture in Tonbridge

Construction on a Tonbridge garden plot runs to a programme agreed once Tonbridge and Malling Borough Council has issued permission and any pre-commencement conditions have been dealt with. Groundworks and foundations come first; the shell and roof follow, then glazing, internal trades and, last of all, the drive and planting.

Weather matters. Around 21 December the sun in Tonbridge climbs to only about 15° at midday, so winter days are short and wet ground slows the work. Where we can, we order the job so the house is weathertight before the worst months arrive.

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.

What happens next in Tonbridge

If your Tonbridge plot already has planning permission, we begin by checking the approved drawings and conditions against the site. Some permissions need detailed design, discharge of conditions or a minor amendment before they can be built. We then prepare the technical drawings, arrange Building Regulations approval and the warranty, apply for utility connections and give you a written quote to build.

  1. Free plot appraisal

    We check the title plan, access, constraints and planning policy from our desk, talk the plot through with you, and visit if it looks viable. There’s no cost and no obligation.

  2. Survey and design

    A measured survey records levels, boundaries, trees and neighbouring windows. We then design a layout and house that suit the plot, the street and your budget, and decide whether pre-application advice is worth seeking.

  3. Written quote and build

    Once design and survey are complete you get a written quote. The build runs in stages — access and groundworks, foundations, frame and roof, fit-out and external works — with inspections at each key point.

  4. Handover

    You receive the completion certificate, warranty documents, Energy Performance Certificate, manuals and utility details, so the new home is ready to move into, let or put on the market.

Worth checking early

  • Planning can be refused, and money spent on surveys, design and the application isn’t recovered if it is — which is why we start with an appraisal.
  • You fund the build and carry the cost risk; ground conditions, sewer diversions or supply upgrades found later can move the price.
  • Your own garden gets smaller and the new home will be visible from your house, so screening and separation matter for both homes.

Your questions, answered for Tonbridge

How close can a new house be to my own in Tonbridge?

There’s no single national distance. Many councils use separation guides of around 21 metres between facing back windows and around 12 to 15 metres between a back window and a blank side wall, but the guidance used by Tonbridge and Malling Borough Council decides. Window positions, ground levels, roof shape and screening all affect what is acceptable, which is why we survey before we design.

Can the new home in my Tonbridge garden connect to the main sewer?

Usually, yes, but the route and depth decide how easily. The new home needs its own foul connection, agreed with the water company, and gravity drainage is simplest where the sewer sits lower than the new floor. If it doesn’t, a pumped connection may be needed. Where a public sewer runs under your garden, a build-over agreement or diversion may also be required.

How long does planning take for a new home in a Tonbridge garden?

The statutory period for deciding a minor application, such as a single new home, is 8 weeks from the date the council receives a valid application, in both England and Wales. In practice many applications take longer, and the council may ask you to agree an extension in writing. Surveys and design before submission add time, and conditions may need approving afterwards.

Do you visit gardens in Tonbridge before giving advice?

We start with a desk review of the title plan, access, constraints and planning policy, then talk the plot through with you. If it looks viable, we arrange a site visit to see the access, levels, trees and neighbouring windows for ourselves. The appraisal is free and carries no obligation.

Other options in Tonbridge

Build 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