Henley-on-Thames, Oxfordshire
Terraced house rear extension in Henley-on-Thames
Terraced house rear extension in Henley-on-Thames: rear and side return extensions for terraces, with access through the house and two neighbours. We measure the house, show you what the rules allow, price it in writing and build it.
Henley-on-Thames is covered from our Oxfordshire round, including RG9. Terraced streets make up much of the housing in parts of Oxfordshire, and most rear extensions here go in without side access.
Book a free site visit
Tell us about the house and we'll call to arrange a free, no-obligation visit.
How much does a terraced house rear extension cost in Henley-on-Thames?
A terraced house rear extension in Henley-on-Thames is priced at £2,300–£3,700 per square metre including VAT as a guide, before kitchen fit-out and fees. South East prices run above our West Midlands baseline, mainly on labour rates and clay-soil foundations.
| Size | Guide price inc VAT |
|---|---|
| 3 m wide × 4.5 m deep (13.5 m²) | £31,000–£50,000 |
| 3 m wide × 6 m deep (18 m²) | £41,500–£66,500 |
Ground conditions, glazing, the roof and how far the house is opened up move the final figure within the range.
Do you need planning permission for a terraced house rear extension in Henley-on-Thames?
Here is how the rules in England apply to a terraced house rear extension in Henley-on-Thames.
In England a single-storey rear extension can often be built under permitted development: up to 3 metres beyond the original rear wall of an attached house, or 4 metres on a detached house, no higher than 4 metres, with eaves no higher than 3 metres if any part is within 2 metres of a boundary.
Because rear extensions often sit on or near the boundary, the Party Wall etc. Act 1996 usually applies in England. Notices go out one or two months before work depending on the type of work, and a surveyor's award is only needed if a neighbour does not consent.
Conservation areas, National Parks, National Landscapes and the Broads restrict permitted development, and listed buildings always need listed building consent. At the first visit we measure what is there now and tell you which route fits: permitted development, prior approval or a planning application.
What are homes in Henley-on-Thames like to extend?
Around Henley-on-Thames the housing ranges from inter-war semis to 1960s and 1970s estates with good-sized gardens. Many of the newer estates had permitted development rights removed by condition, so we check the planning history before anything is drawn.
How a terraced house rear extension in Henley-on-Thames comes together
Look round and measure
A free visit to see the back of the house, measure it, check the drains and boundaries and hear what you need.
Design and guide price
Two or three layout options with a guide price for each, so you choose the design knowing what it costs.
Paperwork handled
Planning, prior approval or permitted development, Building Regulations approval, structural design and party wall notices are all handled by us.
Build and sign-off
We build to the approved drawings with regular updates, then hand over the building control completion certificate and any guarantees from suppliers.
Terraced house rear extensions near Henley-on-Thames
Neighbouring places we cover include Marlow (6.0 miles) and Reading (6.1 miles).
- Terraced house rear extension in Marlow
- Terraced house rear extension in Reading
- Terraced house rear extension in Lower Earley
- Terraced house rear extension in Maidenhead
- Terraced house rear extension in Wokingham
Other work in Henley-on-Thames:
FAQ
Terraced house rear extension questions in Henley-on-Thames
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.
Is the site visit in Henley-on-Thames free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
Will my terrace be in a conservation area?
Many Victorian terraces are. Your council's map shows it; we check at the survey.
How long does a rear extension take to build in Henley-on-Thames?
Most single-storey rear extensions take 10 to 16 weeks on site and two-storey extensions 16 to 26 weeks, after design and approvals.
Do you handle building control in Henley-on-Thames?
Yes. We apply to the council or a registered building control approver and hand over the completion certificate.
Do I need planning permission for a rear extension in Henley-on-Thames?
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.