Infill plots wanted in Mountain Ash
Development Land Wanted buys infill plots in Mountain Ash and right across England and Wales. Owners and agents are both welcome.
If you own a gap between buildings on a road, it may be an infill plot. We look at how new homes would sit alongside the neighbours, how they would be reached, and whether trees or drainage affect the space.
- Size
- 1 to 9 homes typically
- Planning
- With or without
- Areas
- England & Wales
- Ways we buy
- Outright or conditional
The infill plots that interests us around Mountain Ash
We look for infill plots across Mountain Ash and the surrounding villages, particularly where there is room for parking off the road. Sitting about 15 miles north-east of Bridgend, Mountain Ash is within Mid Glamorgan, with Ferndale and Treharris close by.
- Gaps in a street frontage between houses or other buildings
- Side gardens with their own road frontage
- Plots large enough for one or more homes with parking
- Land with or without an earlier planning history
Mid Glamorgan covers the South Wales valleys of the Rhondda, Cynon, Taff and Merthyr, along with Bridgend, Pontypridd, Maesteg and Porthcawl. There is no green belt, but green wedges are used locally and the northern uplands fall within Bannau Brycheiniog National Park. Former colliery and industrial land, terraced-street infill and edge-of-settlement fields are typical sources of housing sites, with coal mining legacy and steep slopes common checks.
What usually makes or breaks it
Character of the street
New homes need to suit the building line, height and spacing of the street.
Neighbours' amenity
Overlooking, loss of light and outlook are the issues planners weigh most often.
Parking and access
A safe access and enough parking can decide small schemes.
In Wales, planning decisions are guided by Planning Policy Wales and Future Wales: the National Plan 2040, with land for housing identified through each council's Local Development Plan, including candidate site stages when plans are reviewed.
We are based in Great Barr, Birmingham, around 86 miles from Mountain Ash, and we travel to see sites across England and Wales.
Ways to sell infill plots in Mountain Ash
Subject-to-planning contract
We agree a price now and complete once a satisfactory planning permission is granted.
Subject-to-planning contractThe next steps
Tell us about the land
Use the form or call us with the location and a rough outline of the site.
Free appraisal
We review title, planning and constraints and tell you honestly what we think.
Written offer
If the site suits us, we set out an offer and the way we propose to buy.
Solicitors take over
Your solicitor and ours agree the contract; we keep you informed throughout.
Your questions answered
How wide does an infill plot need to be?
There is no fixed figure; it depends on the street. A plot that allows a home similar in width to its neighbours, with space to the sides, is a good start.
Do small infill sites need biodiversity net gain?
In England, from 6 August 2026 most non-major sites of 0.2 hectares or less are exempt from mandatory BNG, unless priority habitat is affected. Wales uses a different approach.
Which planning rules apply to land in Mountain Ash?
As Mountain Ash is in Wales, national policy comes from Planning Policy Wales and Future Wales: the National Plan 2040. Local policies in the council's development plan also apply.
Do I need to pay anything to have land in Mountain Ash assessed?
No. Our appraisal is free and there is no obligation to sell to us.