Hayling Island, Hampshire
Rear extension planning drawings in Hayling Island
Measured survey, design options, planning drawings and the application, handled for you. We design, get the approvals for and build rear extensions in Hayling Island and the surrounding area, with one contract from the first survey to building control sign-off.
Hayling Island and its postcode districts PO11 are part of our Hampshire coverage. Rear extension applications in Hampshire are householder applications, which councils aim to decide within about eight weeks.
Book a free site visit
Tell us about the house and we'll call to arrange a free, no-obligation visit.
What do rear extension planning drawings cost in Hayling Island?
As a guide, £1,000–£2,500 including VAT for a single-storey rear extension, or £2,000–£3,500 for a two-storey scheme. A householder planning application in England costs £548 (£575 for applications made from 8 December 2026), and a lawful development certificate for proposed work costs half the householder fee. We put a fixed price in writing once the design is agreed, and explain any provisional sums such as foundations.
Do you need planning permission for a rear extension in Hayling Island?
Here is how the rules in England apply to a rear extension in Hayling Island.
England's rules allow a rear extension of more than one storey without an application only when it is no deeper than 3 metres and at least 7 metres from the boundary opposite the rear wall, and never on designated land. Most two-storey schemes need householder planning permission.
Councils aim to decide householder applications within 8 weeks of validation, and prior approval within 42 days.
Conservation areas, National Parks, National Landscapes and the Broads restrict permitted development, and listed buildings always need listed building consent. Before any drawing we look up the property's history with the council, because earlier extensions and removed rights change the answer.
What are homes in Hayling Island like to extend?
Commuter semis and detached houses make up much of Hayling Island, and longer gardens make England's prior approval route for deeper rear extensions worth considering.
How a rear extension in Hayling Island comes together
Free site visit
We measure the house and garden, look at the back wall, drainage and boundaries, and talk through what you want from the space.
Drawings and budget
Floor plans and elevations for the options, each with a guide price.
Paperwork handled
Planning, prior approval or permitted development, Building Regulations approval, structural design and party wall notices are all handled by us.
Fixed price and build
A written price for the agreed design, a start date and a named contact through the build, ending with the building control completion certificate.
Rear extension planning drawings near Hayling Island
Neighbouring places we cover include South Hayling (0.5 miles) and Emsworth (4.6 miles).
- Rear extension planning drawings in South Hayling
- Rear extension planning drawings in Emsworth
- Rear extension planning drawings in Havant
- Rear extension planning drawings in Southsea
- Rear extension planning drawings in Portsmouth
Other work in Hayling Island:
FAQ
Rear extension planning drawings questions in Hayling Island
Do I need planning permission for a rear extension in Hayling Island?
Often not for a single-storey rear extension of up to 3 metres (4 metres on a detached house) under permitted development, or up to 6 or 8 metres with prior approval, unless the house is in a conservation area or its rights have been removed.
Will I need a structural engineer?
Yes for the beam over the new opening and usually the foundations; we arrange them and their calculations go to building control.
Can planning conditions affect the build?
Yes, for example matching materials or obscure glazing. We plan for them.
Do I need a party wall agreement?
In England, usually yes if the extension is on or near a shared boundary or the foundations are close to a neighbour's building. We serve the notices.
Can I live at home while the extension is built?
Usually yes. Most of the work is outside until the back wall is opened near the end, and that stage is screened off.
Can you match the brick or stone on my Hayling Island house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.