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What we do
Land and housing development across South Wales, from the first site walk to handover, delivered by one team.
A developer that does its own groundworks.
Most developments pass through several hands before anyone moves in: a groundworker to get it out of the ground, a builder to put the homes up, and someone in the middle trying to keep them talking. Every handover is a place for time and money to leak.
C&M Developments does it with one team. We are the development side of C&M Jones Groundworks, so the people who price and prepare the ground are the same people who build and hand over the homes.
How a scheme runs with us
Every stage is carried out by the same people, so nothing gets lost between contractors.
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First things first
Get in touch and walk the site
Tell us where the land is and what you have in mind, even if that is only a rough idea. We will talk it through, then meet you on site. Walking the ground together is where the important questions get answered: access, levels, drainage, what is next door and what the site could realistically take.
Get in touch -
Prepare the site
Before a home goes up, the site has to be ready for it. We clear the land, set out the levels and dig in the drainage and sewer connections the homes will rely on. On a sloping Valleys plot this is also when retaining walls are built or stabilised, so it is done properly, first.
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Lay the foundations
With the site prepared, the foundations go in: reinforced concrete designed for the ground it sits on, together with the services and access roads the homes need. It is the work C&M Jones has done for more than 50 years combined.
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Build
The homes go up on foundations we laid, so there is no handover between contractors for problems to fall through. We take the build from the frame to the roof and the finishes.
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Hand over
Finished, signed off and handed over. From the first site walk to the keys, you deal with the same people the whole way through.
Who we work with
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Landowners
You have a plot or a field that is doing nothing. We look at what it can take and can deliver it as finished homes, without you managing a single contractor.
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Housing associations and councils
An accredited partner already trusted on social housing estates in the Valleys, from retaining walls to new homes.
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Investors and partners
A delivery team that prices the ground because it digs the ground, so the biggest unknown on a Valleys site is handled first.
Valleys sites are won or lost in the ground.
Steep plots, old retaining walls and wet ground are where schemes in the Valleys tend to run over time and budget. It is also where our team has spent its working life. As approved Platipus installers we can often stabilise a failing wall instead of rebuilding it, an approach Tai Calon says saved them tens of thousands of pounds.
- More than 50 years combined experience below ground
- Approved Platipus earth anchoring installers
- CHAS accredited and fully insured, with CSCS, CPCS and Street Works certification
Principal contractor working with Equans and Tai Calon Community Housing
“C&M Jones has consistently demonstrated professionalism, reliability, and a diligent approach to all aspects of their work.”
Questions about working with us
Yes. We are principal contractor working with Equans and Tai Calon Community Housing, and we welcome enquiries from other housing providers and local authorities.
Yes. Send us the address or a plan and we will talk it through, then walk the site with you and give you a straight answer on what it can take and how we would deliver it.
Yes. Our schemes are built on groundworks carried out by our own team at C&M Jones Groundworks, from drainage and foundations to retaining walls and roads.
Yes. We are fully insured and CHAS accredited, with CSCS, CPCS and Street Works certification, Confined Space training and approved installer status for Platipus earth anchoring systems.
C&M Developments is a trading name of C&M Jones Groundworks Limited, company number 12493193. Same company, same team, same accreditations.
Yes. Steep plots, retaining walls and awkward ground are where our team has spent its working life. As approved Platipus installers we can often stabilise an existing wall rather than rebuild it.
South Wales, from our base in Mountain Ash. Our work so far has been in Rhondda Cynon Taf, Caerphilly and Blaenau Gwent, and we take on sites further afield including Cardiff, Newport and Swansea.
Not through C&M Developments. For groundworks on a single property, our sister business C&M Jones Groundworks can help: visit cmjones.co.uk.
Get in touch
Got land, or a scheme that needs delivering? Tell us about the site and we will arrange a call, then meet you there to walk it together.
“C&M Jones has consistently demonstrated professionalism, reliability, and a diligent approach to all aspects of their work.”
CHAS accredited · Fully insured · Approved Platipus installer
Your details go to C&M Developments only. We never pass them on.