Covering Rhondda
Our coverage around Rhondda (CF42) also includes Tonypandy, Aberdare and Pontypridd.
Homes in Mid Glamorgan
Welsh homes include long terraces built into hillsides, stone cottages and modern estates, and sloping sites often shape how and where an extension can go.
What is included in a garden annexe in Rhondda?
We design annexes as permanent buildings with proper foundations, insulation and services, and we prepare the planning case showing how the annexe will be used as part of the main home. Connections for water, drainage and power are planned from the start.
- Planning and building regulations checks under Welsh rules
- Design and planning application
- Heating, hot water and electrics
What will a garden annexe cost?
Guide prices for garden annexes, including VAT where it applies. Your fixed price is confirmed in writing after the survey.
| Garden annexes | Guide price incl. VAT |
|---|---|
| Standard specification | £2,400 to £2,900 per m² |
| Good specification | £2,900 to £3,400 per m² |
| High specification | £3,400 to £3,900 per m² |
Planning and building rules in Rhondda
Planning decisions in Wales are made by the local council, using permitted development rules set by the Welsh Government rather than England’s. Building regulations in Wales have their own approved documents, and the Party Wall etc. Act 1996 applies to work on shared walls and boundaries.
In Wales an annexe with sleeping accommodation needs planning permission, usually with a condition tying it to the main house.
What should Rhondda homeowners check first?
- Drainage may need a pump if the garden falls away from the sewer.
- A level threshold and wider doors make the annexe suitable for later life.
What are the steps?
- Send us the details. Give us a postcode, a rough idea of size and some photos, by phone, form or the guide price tool.
- We visit and measure. A surveyor checks the house, the boundaries and the ground, and discusses what is realistic.
- Drawings, approvals, written quote. We prepare the design, apply for the approvals it needs, and give you a fixed price in writing.
- We build it. Work follows an agreed programme, with inspections at each stage and a final sign-off.
Questions about a garden annexe in Rhondda
How much does a garden annexe cost?
Around £2,400 to £3,900 per square metre including VAT, depending on finish and services.
How long does an annexe take to build?
About 14 to 24 weeks on site after approvals.
Who deals with the council for a project in Rhondda?
We do. We prepare the drawings, submit planning or permitted development paperwork if needed, and arrange building control inspections.
Garden annexes in nearby towns
- Garden annexes in Tonypandy
- Garden annexes in Aberdare
- Garden annexes in Pontypridd
- Garden annexes in Merthyr Tydfil
Learn more about garden annexes, or see every project we cover in Rhondda.