- Nation
- Wales
- National planning policy
- Planning Policy Wales
- Planning authorities
- 2
- County town
- Llandrindod Wells
How councils in Powys look at it
Drainage and wildlife often shape garden plots in Powys more than owners expect. A new home needs somewhere for rainwater and foul water to go, and you will need approval from the SuDS Approval Body (SAB) before building starts. Mature gardens can matter for wildlife, so expect the Welsh requirement to deliver a net benefit for biodiversity to come into the design, along with tree surveys where large trees stand near the proposed home or drive. Public sewers crossing the garden may need a build-over agreement with the water company. None of this is a reason to give up, but it is a reason to survey before designing.
Planning authorities covering Powys include Powys County Council, Bannau Brycheiniog National Park Authority.
How it works
Free plot appraisal
We look at your garden using maps, the title plan and the planning history around you, then talk it through with you. If it looks workable we arrange a site visit. There’s no cost and no obligation.
Measure and test the layout
We check depth, the width of the way in, levels, trees, drains and what lies behind, then sketch what could realistically fit: one home, two, or nothing worth pursuing, before anyone pays for an application.
Choose your route
You decide whether to sell the plot outright, sell subject to planning, grant an option, team up with neighbours, or keep the land and have us design, get planning for and build a home on it.
Planning application
We prepare the drawings and reports, usually take pre-application advice, and submit. The council consults neighbours and decides. Small schemes often take a few months from submission, longer if surveys or amendments are needed.
Sale or build
If you sell, your solicitor handles the transfer of part and your lender’s release of the plot. If you build, we give a written quote after design and survey, then build and hand over the new home.
Large rear gardens in towns across Powys
Questions about large rear gardens in Powys
Do you look at large rear gardens in Powys?
Yes. We cover the whole of Powys, as part of our coverage across England and Wales. Send us your address and a few details about your garden, and we’ll carry out a free desktop appraisal before suggesting a site visit.
Can neighbours combine their gardens in Powys?
Yes. Several adjoining back gardens can be put together for one scheme with a shared access, which can give a better layout than separate plots. Each owner keeps their own house, and an agreement shares the value fairly even when only one garden provides the way in.
What fire and drainage rules apply to garden homes in Powys?
Every new home must allow for sprinklers, which every new home in Wales must have. On drainage, expect approval from the SuDS Approval Body (SAB) before building starts. Both can affect where a home sits in a long garden and how the drive is laid out, so we check them early rather than after the design is drawn.
Can you build a new home in my garden in Powys for me to keep?
Yes. Through our design and build route we survey your plot, design a new home with you, apply for planning and, once permission is granted, build it. You keep the land and the new home, to sell, let or use for family. You get a written quote after design and survey, and any earlier guide price is a guide only.

