Newport, Newport and Monmouthshire
Terraced house rear extension in Newport
Rear and side return extensions for terraces, with access through the house and two neighbours. If you live in Newport 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.
We cover Newport (NP10, NP18, NP19 and NP20) as part of our Newport and Monmouthshire work. Terraced streets make up much of the housing in parts of Newport and Monmouthshire, 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 Newport?
In Newport, 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 |
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 terraced house rear extension in Newport?
Whether your terraced house rear extension in Newport 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.
The Party Wall etc. Act 1996 also applies in Wales: two months' notice for work to a shared wall and one month for foundations dug close to a neighbour's building.
Conservation areas, National Parks and National Landscapes restrict permitted development in Wales, and listed buildings need listed building consent. At the first visit we measure what is there now and tell you which route fits: permitted development or a householder planning application.
What are homes in Newport like to extend?
Older terraces near the centre and post-war semis further out are typical of Newport. Sloping sites are common in Wales, so floor levels and retaining walls are designed at the start.
How a terraced house rear extension in Newport comes together
Survey visit
We visit free of charge, measure up, check access, drainage and neighbours' extensions, and note what you want the room to do.
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 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 Newport
Neighbouring places we cover include Caerleon (2.4 miles) and Risca (4.6 miles).
- Terraced house rear extension in Caerleon
- Terraced house rear extension in Risca
- Terraced house rear extension in Cwmbran
- Terraced house rear extension in Abercarn
- Terraced house rear extension in Pontypool
Other work in Newport:
FAQ
Terraced house rear extension questions in Newport
How much does a terraced house rear extension cost in Newport?
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.
Do I need planning permission for a rear extension in Newport?
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.
Will my terrace be in a conservation area?
Many Victorian terraces are. Your council's map shows it; we check at the survey.
What postcode areas do you cover around Newport?
Including NP10, NP18, NP19 and NP20, and the surrounding Newport and Monmouthshire area.
Is the site visit in Newport free?
Yes. We visit, measure up and talk through the options with no cost and no obligation.
Do you handle building control in Newport?
Yes. We apply to the council or a registered approver under the Welsh regulations and hand over the completion certificate.