- Planning authority
- London Borough of Hounslow
- Postcodes
- TW3, TW4, TW5, TW7, TW13
- Noon sun, 21 March
- About 39°
- Shadow from a 5 m eaves line
- About 6.3 m
- Planning plan
- Local Plan
- County
- Greater London
Before you decide in Hounslow
We cover gardens in Hounslow and nearby places such as Richmond upon Thames, Ealing and Hillingdon, with the same process wherever you are: a free desktop appraisal, a visit if the plot looks viable, then survey and design.
Some of those places may fall under a different council from the London Borough of Hounslow, and each local planning authority has its own design guidance, validation list and pre-application service. We confirm which authority covers your address at the start, so the application is prepared for the right requirements first time and avoids delays at validation.
The next steps, locally
If your Hounslow 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.
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.
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.
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.
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
- A build next door means months of noise, deliveries and contractors near your home; good planning reduces the disruption but doesn’t remove it.
- 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.
- Building and selling a new home can change your tax position compared with selling only your house; take advice from a tax adviser first.
Hounslow: questions to ask
Do new homes in Hounslow need a structural warranty?
If the house will ever be sold or mortgaged, in practice yes. Mortgage lenders usually expect a 10-year structural warranty on a new home, though some accept an architect’s or surveyor’s certificate, and a warranty provider inspects the work at stages during the build, so it has to be in place before construction starts. Building control approval is separate and also required; a buyer’s solicitor will ask for both.
How close can a new house be to my own in Hounslow?
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 the London Borough of Hounslow decides. Window positions, ground levels, roof shape and screening all affect what is acceptable, which is why we survey before we design.
How long does planning take for a new home in a Hounslow 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.
Can the new home in my Hounslow 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.
Other options in Hounslow
- Plot feasibility and design
- Build a home for family in your garden
- Sell part of your garden
- Planning permission for a garden plot
- Tandem and landlocked plots
- Garage courts and yards