Cardiff — CF14
Builders in Whitchurch, Cardiff
Bespoke residential, Extensions — delivered by one accountable team from our Blackwood base. Bespoke, from the ground up.
Building in Whitchurch
Bespoke residential in Whitchurch and the surrounding CF14 area
Whitchurch's mix of period property, post-war family homes and generous plots makes it fertile ground for bespoke residential work — from substantial extensions to complete replacement homes. Jac Jones Construction serves Whitchurch and the surrounding CF14 areas with building work carried out to the same standard as our from-scratch bespoke homes.
Extensions in Whitchurch succeed or fail on the invisible work: foundations that respect the existing house, drainage alterations done properly, steels designed and installed without drama. Our in-house groundworks and structural experience keep that half of the job as controlled as the finish.
- Area served
- Whitchurch and surrounding CF14
- Region
- Cardiff
- Focus
- Bespoke residential, Extensions
- Based
- Blackwood, Caerphilly — on site daily
Bespoke homes
From a plot and an idea, or drawings ready to build.
The difference between a bespoke home and an expensive one is usually the ground and the detail. Around Whitchurch, we handle both in-house: our groundworks division prepares the site, our build team delivers the structure and envelope, and the internal finishes are completed by trades we have worked with for years. You deal with one company, one programme and one person who answers the phone.
Groundworks & civils
In-house, on our own plant.
Groundworks are not a subcontract for us — they are half the business. Our own operators and plant handle excavation, foundations, reinforced concrete, retaining structures, drainage and external works across Whitchurch and the surrounding CF14 area, both beneath our own builds and as standalone packages. Sites that other builders price as problems are the sites we are set up for.
Project evidence
Relevant projects near Whitchurch
Real projects in their true locations — where work is in a neighbouring area, we say so.
One line of responsibility
From an idea to the keys.
Concept, design, planning, engineering, groundworks, structure, build, internals, external works, handover — one accountable company throughout.
01
Idea or plot
A site, a sketch, or nothing more than an intention.
02
Design
Architects who work the way you want to live.
03
Planning & consultants
Applications, SAB, drainage, energy assessment.
04
Engineering
Structural design resolved before anyone breaks ground.
05
Groundworks
Our own team, our own plant, in the ground.
06
Construction
Trades we have worked with for years.
07
Completion
Snagged, handed over, and stood behind.
Why Jac Jones Construction
Built like a business we still own.
Established 2013
A decade-plus building homes, pools and groundworks across South Wales — still founder-led, still family-run.
Contractor and developer
We have funded, built and sold our own developments. We understand cost, risk and finish from the client's side of the table.
In-house groundworks
Our own operators and plant, from small excavators for tight gardens to 8-tonne machines. The ground is never someone else's problem.
Trusted network
Architects, structural engineers, planning consultants and trades we have worked with for years — introduced where your project needs them.
Nearby
We also work around Whitchurch
Common questions
Questions about building in Whitchurch
- Do you build bespoke new homes in Whitchurch?
- Yes. We serve Whitchurch and the surrounding CF14 area from our base in Blackwood, delivering complete bespoke homes from an idea and a plot, or from a finished drawing package. Groundworks, structure, internals and external works are all handled by one accountable team.
- Can Jac Jones Construction manage a project from design through to completion?
- Yes — design and build is a core part of how we work. We can introduce trusted architects, structural engineers, planning consultants, SAP assessors and drainage specialists, then manage the project through planning, engineering and construction to handover. If you already have a design team, we work alongside them.
- Can you undertake the groundworks as well as the house build?
- Groundworks are delivered in-house on our own plant — excavation, foundations, reinforced concrete, retaining structures, drainage and external works. On constrained or sloping sites around Whitchurch this is often the difference between a smooth build and an expensive one.
- What information do you need to price a bespoke new build?
- Ideally a drawing package, but a plot and a clear idea are enough to start a sensible conversation. We will tell you honestly what stage the project is really at, what it is likely to involve and what we would need to give you a properly itemised price.
- Do you undertake SAB and drainage works as part of a new build?
- Yes. Surface-water drainage for new builds in Wales requires SAB approval, and SuDS features are designed into our schemes from the start. Our groundworks division builds the drainage and attenuation infrastructure as part of the normal package.
- Which surrounding areas do you cover?
- Alongside Whitchurch, we regularly work across Rhiwbina, Llandaff, Llanishen, Radyr and Lisvane and the wider South Wales region. Exceptional projects further afield — including Bristol and West Wales — are considered on their merits.
- How early should I contact you before I want construction to begin?
- Earlier than most people think. A conversation at plot-or-idea stage lets us flag ground, access, drainage and budget realities while they are still cheap to solve — but we are equally happy to be brought in with completed drawings ready to price.
Start here
Planning a project in Whitchurch?
Tell us what you are planning in Whitchurch or the surrounding CF14 area — it takes about two minutes and there is no budget interrogation.
Would rather talk it through? Call 07446 832296