Neath, Swansea Bay
Terraced house rear extension in Neath
Rear and side return extensions for terraces, with access through the house and two neighbours. If you live in Neath and want to know what a terraced house rear extension would cost and whether it needs planning, start with the online guide price or a free site visit.
Neath is covered from our Swansea Bay round, including SA10, SA11 and SA12. On a Neath 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 Neath?
A terraced house rear extension in Neath is priced at £1,910–£3,070 per square metre including VAT as a guide, before kitchen fit-out and fees. 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 Neath?
Whether your terraced house rear extension in Neath needs a planning application depends on its size, your house and any local restrictions.
Welsh permitted development allows a single-storey rear extension of up to 4 metres in depth and 4 metres in height, subject to boundary and garden-coverage limits. There is no larger-extension prior approval scheme in Wales.
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. We check your house's planning history and any conservation area before drawing, so the route is clear before you spend on plans.
What are homes in Neath like to extend?
Neath has Victorian terraces near the centre and semis further out. Welsh permitted development allows up to 4 metres at the rear for many houses.
How a terraced house rear extension in Neath 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.
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.
Written price, then build
Once the design and approvals are in place, you get a fixed written price and programme, and we build through to sign-off.
Terraced house rear extensions near Neath
Close by, we work in Briton Ferry, about 2.3 miles away, and Clydach, about 4.3 miles away.
- Terraced house rear extension in Briton Ferry
- Terraced house rear extension in Clydach
- Terraced house rear extension in Swansea
- Terraced house rear extension in Ystalyfera
- Terraced house rear extension in Maesteg
Other work in Neath:
FAQ
Terraced house rear extension questions in Neath
Do you handle building control in Neath?
Yes. We apply to the council or a registered approver under the Welsh regulations and hand over the completion certificate.
Do I need planning permission for a rear extension in Neath?
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.
Do both neighbours need party wall notices?
Usually yes in England and Wales, because the extension often sits on or near both boundaries.
Who will build my extension?
Vetted building teams working under contract to us. Your contract is with S&K Property Investments and Improvement Ltd for the design and the build.
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.
How much does a terraced house rear extension cost in Neath?
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.