Llanelli, West Wales
Rear extension planning drawings in Llanelli
Measured survey, design options, planning drawings and the application, handled for you. If you live in Llanelli and want to know what a rear extension would cost and whether it needs planning, start with the online guide price or a free site visit.
Llanelli is covered from our West Wales round, including SA15. For Llanelli homes we start with a measured survey, then draw options before anything is submitted.
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 Llanelli?
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. Planning fees in Wales are set by the Welsh Government; we confirm the current householder fee when we prepare the application. Your written price follows a measured survey and an agreed design, so it reflects your house, not an average.
Do you need planning permission for a rear extension in Llanelli?
Planning for a rear extension in Llanelli follows the Welsh householder rules.
In Wales a rear extension of more than one storey can be permitted development if the ground floor projects no more than 4 metres and the upper floor no more than 3 metres, with at least 10.5 metres to the rear boundary. It is not permitted development in conservation areas, National Parks or National Landscapes, so many double-storey schemes need a householder application.
Welsh councils aim to decide householder applications within 8 weeks.
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 Llanelli like to extend?
Llanelli 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 rear extension in Llanelli 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.
Options and costs
We draw layout options and price each one, so the budget shapes the design rather than surprising you later.
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.
Rear extension planning drawings near Llanelli
Close by, we work in Gorseinon, about 5.2 miles away, and Swansea, about 10.3 miles away.
- Rear extension planning drawings in Gorseinon
- Rear extension planning drawings in Swansea
- Rear extension planning drawings in Ammanford
- Rear extension planning drawings in Clydach
- Rear extension planning drawings in Carmarthen
Other work in Llanelli:
FAQ
Rear extension planning drawings questions in Llanelli
What postcode areas do you cover around Llanelli?
Including SA15, and the surrounding West Wales area.
Do I need planning permission for a rear extension in Llanelli?
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 planning conditions affect the build?
Yes, for example matching materials or obscure glazing. We plan for them.
Can you match the brick or stone on my Llanelli house?
We source the closest match and show you samples before ordering; reclaimed materials are often the best match on older houses.
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.
Do you handle building control in Llanelli?
Yes. We apply to the council or a registered approver under the Welsh regulations and hand over the completion certificate.