Building a new home in a large garden, or on a small plot between houses, is one of the most common questions we're asked. It can work well, but it's judged carefully, and every site is different.
Is the principle acceptable?
The first question is whether a new home is acceptable in that location at all. That mostly depends on:
- Whether the site is in a town or village. The new national planning rules published in August 2026 give strong support to new homes within settlements, unless the harm would clearly outweigh the benefits. Sites in open countryside are much harder.
- The local plan. Each council has its own policies, such as settlement boundaries in Tendring, Colchester, Braintree, Maldon, Babergh and Ipswich.
- Planning history on the site and close by, including any refusals and appeal decisions.
Will it fit in?
Even where the principle is fine, the scheme has to work in detail. The council will look at:
- Character: does the new house respect the pattern of the street, plot sizes and the spacing between buildings?
- Neighbours: light, privacy and outlook for the existing house and those around it
- Living conditions: a decent garden and good rooms for the new home and for the house it's taken from
- Access and parking: safe access to the road, visibility and parking for both homes
- Trees, wildlife and drainage, including surveys where needed
Other things to plan for
- Coastal wildlife mitigation: new homes across much of Essex and the Suffolk coast pay a contribution towards protecting coastal wildlife sites (the RAMS schemes).
- Community Infrastructure Levy: some councils charge CIL on new homes. Self-builders can often claim an exemption, but it must be claimed before work starts.
- Biodiversity net gain: from 6 August 2026, most sites of 0.2 hectares or less are exempt. See our guide to biodiversity net gain.
- Services: drainage, water and electricity connections.
Outline or full?
If you mainly want to establish whether a house is acceptable, perhaps to sell the plot, an outline application can settle the principle first. If you plan to build it yourself, a full application with a worked-up design is usually better.
How we can help
We start with an honest assessment of the site and its history. Then we design a home that fits the plot, prepare the application and supporting reports, and deal with the council through to a decision. See our pages on self-build homes and small developments.
Book a free home visit
Ben will come and look at the plot with you, check the policies and planning history, and give you a straight answer on whether it's worth pursuing.
Every site is different. This guide is general information, not advice on your project. For a straight answer about your property, book a free home visit: Ben will come and look, with no obligation.
Who'll handle your project: Benjamin Plunkett, our Managing Director and Planning & Heritage Consultant, is your point of contact from the first site visit to the decision. Charlie Plunkett MCIAT produces the drawings.
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