- Planning authority
- Rhondda Cynon Taf County Borough Council
- Postcodes
- CF45
- Noon sun, 21 March
- About 38°
- Shadow from a 5 m eaves line
- About 6.3 m
- Planning plan
- LDP
- County
- Mid Glamorgan
Mountain Ash: light, access and policy
Back gardens in CF45, as anywhere, tend to be divided by fences, hedges and the odd tree, and a combined scheme has to work with all of them. Old boundary hedges may be habitat worth keeping, and mature trees may need an assessment before anything is designed.
We map these features across all the gardens at once, so the layout keeps what matters and the application to Rhondda Cynon Taf County Borough Council shows how trees and wildlife have been considered. Doing it across the whole site is simpler and cheaper than doing it garden by garden.
What happens next in Mountain Ash
Nothing happens without every owner’s agreement. If you’re in Mountain Ash and think the gardens on your side of the street could work together, call us or use the form. We’ll look at the land first, tell you plainly whether it’s worth pursuing, and only then discuss approaching the other owners, with your say-so and in the way you prefer.
Free appraisal of the combined land
We look at all the titles together, the possible access points, the surrounding homes and the planning policies that apply, then explain whether a combined scheme looks realistic and roughly what it might allow.
Agree how value is shared
Heads of terms set out the route, each owner’s share, any extra for the garden providing the access, what happens if someone drops out, and the cap on each owner’s reasonable legal fees where it applies.
Collaboration agreement
Each owner’s own solicitor reviews the documents, and everyone signs a collaboration agreement alongside the sale, option or promotion agreement. Mortgage lenders are asked to consent early, and the agreements are usually protected on each title.
One planning application
We prepare and submit a single application for the whole site, with one shared access and a layout designed around all the existing homes. The council decides it, and nobody can promise the result.
Worth checking early
- Planning is still the council’s decision; a combined scheme is often stronger, but it can still be refused.
- If the garden providing the access drops out before signing, the whole scheme may not work.
- Every owner’s mortgage lender, title and covenants have to be dealt with, and one problem can hold up everyone.
Mountain Ash: questions to ask
Who pays for planning on combined gardens in Mountain Ash?
It depends on the route. On a sale subject to planning, we normally fund the application. On planning promotion, nothing is paid upfront and costs are recovered from the proceeds only if a sale with planning happens. On an outright sale, we buy the land as it stands.
Can neighbours in Mountain Ash combine their back gardens for new homes?
Yes, where the gardens adjoin and there’s a workable access. Each owner keeps their house, the land behind is planned as one site, and a collaboration agreement sets out how the value is shared. Rhondda Cynon Taf County Borough Council decides any planning application on its merits.
Does each Mountain Ash owner keep their own house and garden?
Yes. Each owner keeps their house and an agreed garden for it. Only the land behind is transferred, as a transfer of part at HM Land Registry. New boundaries and fencing for each house are agreed as part of the design.
How many neighbours in Mountain Ash need to take part?
As few as two can be enough. What matters is that the gardens taking part make a workable site and that one of them provides access to the road. We tell you which gardens are essential and which would simply improve the scheme.
Other options in Mountain Ash
- Corner and side plots
- Build a home for family in your garden
- Tandem and landlocked plots
- Sell part of your garden
- Planning promotion for your garden plot
- Plot feasibility and design

