Newtown, Mid Wales
Terraced house rear extension in Newtown
Terraced house rear extension in Newtown: 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.
We cover Newtown (SY16) as part of our Mid Wales work. On a Newtown terrace both neighbours usually need party wall notices or agreement, so we talk to them early.
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 Newtown?
In Newtown, our guide for a terraced house rear extension is £1,910–£3,070 per square metre including VAT for a standard specification. Prices in Wales sit below our West Midlands baseline; sloping sites are the main variable.
| Size | Guide price inc VAT |
|---|---|
| 3 m wide × 4.5 m deep (13.5 m²) | £25,500–£41,500 |
| 3 m wide × 6 m deep (18 m²) | £34,500–£55,000 |
These are guide ranges; the written quote after the survey is the figure that counts.
Do you need planning permission for a terraced house rear extension in Newtown?
Whether your terraced house rear extension in Newtown needs a planning application depends on its size, your house and any local restrictions.
The Welsh Government's householder rules let many homes add a single-storey rear extension up to 4 metres deep and 4 metres high without a planning application. Deeper projects go through a householder application, because Wales has no prior approval route.
In Wales, as in England, the Party Wall etc. Act 1996 requires notice to neighbours before work to a shared wall or excavation near their foundations.
Conservation areas, National Parks and National Landscapes restrict permitted development in Wales, and listed buildings 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 Newtown like to extend?
Older terraces near the centre and post-war semis further out are typical of Newtown. Sloping sites are common in Wales, so floor levels and retaining walls are designed at the start.
How a terraced house rear extension in Newtown 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 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 Newtown
We also build rear extensions for terraced houses in nearby Welshpool (11.8 miles) and Llandrindod Wells (19.3 miles).
- Terraced house rear extension in Welshpool
- Terraced house rear extension in Llandrindod Wells
- Terraced house rear extension in Oswestry
- Terraced house rear extension in Shrewsbury
- Terraced house rear extension in Ludlow
Other work in Newtown:
FAQ
Terraced house rear extension questions in Newtown
How much does a terraced house rear extension cost in Newtown?
As a guide, £1,910–£3,070 per square metre including VAT for a standard specification. For example, 3 m wide × 4.5 m deep (13.5 m²): about £25,500–£41,500 at that rate. Your written price follows the survey.
Can I get a price without a visit?
Our online guide-price tool gives a range in a couple of minutes. A written price needs a survey.
Do both neighbours need party wall notices?
Usually yes in England and Wales, because the extension often sits on or near both boundaries.
Do I need planning permission for a rear extension in Newtown?
Often not for a single-storey rear extension of up to 4 metres under Welsh permitted development. Wales has no prior approval route for deeper extensions.
Can you match the brick or stone on my Newtown house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.
What postcode areas do you cover around Newtown?
Including SY16, and the surrounding Mid Wales area.