Backland Development
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Build a new home in your garden in Ystalyfera

Building a second home behind your own in Ystalyfera is a construction project with one unusual feature: you live beside the site from the first spade to the last coat of paint. That shapes how we plan it, from the fence that separates your garden on day one to where deliveries park.

The route covers everything between an idea and a finished house. We survey and design, prepare and submit the planning application, arrange Building Regulations approval and the structural warranty, organise new water, drainage and electricity connections, and then build. You keep ownership of the land throughout.

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Timber-frame house under construction with scaffolding at the bottom of a back garden, seen from the patio
Planning authority
Neath Port Talbot County Borough Council
Postcodes
SA9
Noon sun, 21 March
About 38°
Shadow from a 5 m eaves line
About 6.3 m
Planning plan
LDP
County
West Glamorgan

Ystalyfera: light, access and policy

We cover gardens in Ystalyfera and nearby places such as Ystradgynlais, Neath and Clydach, with the same process wherever you are: a free desktop appraisal, a visit if the plot looks viable, then survey and design.

Some of those places may fall under a different council from Neath Port Talbot County Borough Council, and each local planning authority has its own design guidance, validation list and pre-application service. We confirm which authority covers your address at the start, so the application is prepared for the right requirements first time and avoids delays at validation.

Section showing noon sun and shadows in Ystalyfera: about 38 degrees on 21 March and 15 degrees on 21 December21 m21 Mar, noon: sun 38°, shadow 6.3 m21 Dec, noon: sun 15°, shadow 18.9 mExistingNew home
Noon sun in Ystalyfera on 21 March sits about 38° above the horizon, so a typical two-storey eaves line (about 5 m) throws a shadow of roughly 6.3 m. In December the sun is only about 15° up and shadows stretch much further. Drawn for a garden facing north, where it matters most.

What happens next in Ystalyfera

Getting started in Ystalyfera takes one step from you: send your address and a few photos of the garden, or call us. We check the title plan, access and planning constraints from our desk, then talk the plot through. If it looks viable we arrange a visit, discuss whether you want to sell, let or keep the new home, and set out the survey and design stage in writing before you commit.

  1. Free plot appraisal

    We check the title plan, access, constraints and planning policy from our desk, talk the plot through with you, and visit if it looks viable. There’s no cost and no obligation.

  2. Planning and approvals

    We submit the planning application and manage it to a decision, then deal with conditions, Building Regulations approval, the structural warranty, any build-over agreement and the new utility connections.

  3. Written quote and build

    Once design and survey are complete you get a written quote. The build runs in stages — access and groundworks, foundations, frame and roof, fit-out and external works — with inspections at each key point.

  4. Handover

    You receive the completion certificate, warranty documents, Energy Performance Certificate, manuals and utility details, so the new home is ready to move into, let or put on the market.

Worth checking early

  • Building and selling a new home can change your tax position compared with selling only your house; take advice from a tax adviser first.
  • Your own garden gets smaller and the new home will be visible from your house, so screening and separation matter for both homes.
  • A build next door means months of noise, deliveries and contractors near your home; good planning reduces the disruption but doesn’t remove it.

Ystalyfera: questions to ask

Can I build a house in my Ystalyfera garden and then sell it?

Yes. You keep the land while the home is built, then sell the finished house. Before building starts, the plot should be given its own title through a transfer of part at HM Land Registry, and if your house is mortgaged your lender must agree to release the plot. Selling a home you’ve built can change your tax position, so take advice from a tax adviser first.

Can I build a house in my garden in Ystalyfera and keep the land?

Yes. On our design and build route you remain the owner while we design the home, apply to Neath Port Talbot County Borough Council for planning, deal with Building Regulations and build it. The finished house can be sold, let or kept for family. Whether your plot can take a house depends on access, space, neighbours and local policy, and the decision rests with the council.

Can the new home in my Ystalyfera garden connect to the main sewer?

Usually, yes, but the route and depth decide how easily. The new home needs its own foul connection, agreed with the water company, and gravity drainage is simplest where the sewer sits lower than the new floor. If it doesn’t, a pumped connection may be needed. Where a public sewer runs under your garden, a build-over agreement or diversion may also be required.

Will I pay Community Infrastructure Levy on a new home in Ystalyfera?

Only if Neath Port Talbot County Borough Council has adopted a Community Infrastructure Levy charging schedule; not every council has. Where it applies, it can be charged on a new home of any size. A self-build exemption exists for people building a home to live in, but it must be claimed before work starts, so we check the position at design stage.

Other options in Ystalyfera

Build in your garden near Ystalyfera

Find out what your garden could become

Free garden plot appraisal. No cost, no obligation, and a straight answer if it won’t work.

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