Build a new home in your garden in Cobham

For a garden in Cobham to take a new house, three things have to line up: a safe way in, enough space to keep both homes private and light, and services that can reach the plot at sensible cost. Our free appraisal looks at all three before you spend anything.

If they line up, we move on to a measured survey, design and, where useful, pre-application advice from Elmbridge Borough Council. Planning permission is the council’s decision, so the design is shaped around the tests its officers apply rather than the largest house the plot could possibly hold.

Timber-frame house under construction with scaffolding at the bottom of a back garden, seen from the patio
Planning authority
Elmbridge Borough Council
Postcodes
KT11
Noon sun, 21 March
About 39°
Shadow from a 5 m eaves line
About 6.2 m
Planning plan
Local Plan
County
Surrey

How it plays out in Cobham

Wherever your house sits across KT11, a new home behind it needs water, power and two kinds of drainage — one for waste, one for rain. We contact the utility providers early, because a long cable run, a sewer at the wrong depth or a public pipe under the lawn can change both the layout and the cost.

Rain from the new roof and drive has to be dealt with on site, and Elmbridge Borough Council will want to see how. Where a public sewer crosses your garden, the water company may also need a build-over agreement before work starts, so we check sewer records at appraisal stage.

Section showing noon sun and shadows in Cobham: 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 18.4 mExistingNew home
This section is worked out for the latitude of Cobham: around 39° 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 Cobham

If your Cobham 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. Planning and approvals

    We submit the planning application and manage it to a decision, then deal with conditions, Building Regulations approval, the structural warranty, any build-over agreement and the new utility connections.

  4. 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.

Worth checking early

  • A build next door means months of noise, deliveries and contractors near your home; good planning reduces the disruption but doesn’t remove it.
  • Building and selling a new home can change your tax position compared with selling only your house; take advice from a tax adviser first.
  • You fund the build and carry the cost risk; ground conditions, sewer diversions or supply upgrades found later can move the price.

Your questions, answered for Cobham

Can the new home in my Cobham 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.

Will I pay Community Infrastructure Levy on a new home in Cobham?

Only if Elmbridge Borough Council has adopted a Community Infrastructure Levy charging schedule; not every council has. Where it applies, it can be charged on a new home of any size. A self-build exemption exists for people building a home to live in, but it must be claimed before work starts, so we check the position at design stage.

Who decides planning for a garden house in Cobham?

Elmbridge Borough Council decides applications for addresses in Cobham, using the council’s Local Plan, national policy and its own design guidance. Neighbours and consultees such as highways officers can comment, and the decision is made by the council’s planning officers or, where the rules allow, its planning committee. Pre-application advice from the council can help test a scheme before the formal application is submitted.

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

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 Elmbridge Borough Council decides. Window positions, ground levels, roof shape and screening all affect what is acceptable, which is why we survey before we design.

Other options in Cobham

Build in your garden near Cobham

Find out what your garden could become

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