Demolition plans in Caerphilly

56 demolition applications were submitted in Caerphilly in the last 12 months, from garages and outbuildings to whole buildings. Of the 33 decided so far, 22 were approved. Demolish-and-rebuild schemes also appear under planned new homes.

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Showing 14 of 14 applications
Yesterday Awaiting decision 26/0690/FULL

Acorn Cottage Pennar Lane Pentwyn-mawr Newport NP11 4GY

Demolish existing residential outbuilding (pool house) and construct detached dwelling, detached garage and associated works

Full Application Caerphilly
15 Oct 2026 Awaiting decision 26/0677/HH

17 Bryn-rhedyn Caerphilly CF83 3BT

Demolish existing garage and erect a two storey rear and single storey wrap around extension

Householder Application Caerphilly
8 Oct 2026 Awaiting decision 26/0682/HH

Pen-y-cwm 22 Merthyr Road Princetown Tredegar NP22 3AE

Convert existing integral garage into Granny flat, demolish existing car port and replace with new single garage

Householder Application Caerphilly
7 Oct 2026 Awaiting decision 26/0666/HH

1 Rhos Street Caerphilly CF83 3HP

Demolish existing conservatory and erect a single storey flat roof rear extension

Householder Application Caerphilly
7 Oct 2026 Awaiting decision 26/0413/RET

4 Tai Fforest Cottages Caerphilly Road Nelson Treharris CF46 6PP

Retain and complete replacement dwelling, new retaining walls and associated works

Retain Development Already Carried Out Caerphilly
24 Sept 2026 Awaiting decision 26/0643/OUT

Fairview Bungalow Commin Road Markham Blackwood NP12 0RY

Replace dwelling with 2-bed bungalow

Outline Application Caerphilly
8 Sept 2026 Awaiting decision 26/0599/FULL

Land To Rear Of 2 High Street Nelson Treharris CF46 6EU

Demolish masonry wall and erect 4 No apartments and associated works

Full Application Caerphilly
25 Aug 2026 Awaiting decision 26/0565/HH

19 Cae Collen Blackwood NP12 1FF

Demolish existing attached side garage, erect two-storey side extension, enlarge existing single-storey rear extension, provide integrated single gara...

Householder Application Caerphilly
20 Aug 2026 Awaiting decision 26/0557/FULL

Caerphilly Castle Castle Street Caerphilly CF83 1JD

Refurbish existing timber bridge to include demolition and replacement of parapet and deck with addition of new lighting

Full Application Caerphilly
14 Aug 2026 Awaiting decision 26/0526/FULL

Land At Gelligaer Court Hospital Road Penpedairheol

Demolish industrial shed building, convert and extend former hospital building to form two no. semi-detached dwellings and erection of cluster of 3 no...

Full Application Caerphilly
13 Aug 2026 Approved 8 Oct 26/0539/HH

33 Heol Tasker Nelson Treharris CF46 6JB

Part demolish existing garage and erect a single storey extension

Householder Application Caerphilly
11 Aug 2026 Approved 21 Oct 26/0536/HH

11 Marsh Court Aberbargoed Bargoed CF81 9BF

Extend existing garage

Householder Application Caerphilly
5 Aug 2026 Approved 29 Sep 26/0528/HH

Bryncanol Ty Canol Lane Machen Caerphilly CF83 8QE

Demolish existing lean-to rear extension, raise ridge height, erect first-floor front extension, convert loft to include two dormers to the front and ...

Householder Application Caerphilly
29 Jul 2026 Awaiting decision 26/0498/HH

85 High Street Nelson Treharris CF46 6HA

Demolish existing single storey rear extension and erect a two storey side extension and single storey rear extension

Householder Application Caerphilly
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Frequently asked questions

Do you need planning permission to demolish a building?
Most demolition outside conservation areas is permitted development under Part 11 of the GPDO, but you must submit a prior-approval application covering method and restoration. Demolition of dwellinghouses always needs prior approval, even where permitted development applies.
What is a 'replacement dwelling' application?
Planning permission to demolish an existing dwelling and replace it with a new one. The principle is not automatic: councils assess the replacement against local policy on impact, scale, design and any heritage or rural-character considerations.
Can I get email alerts for new demolition applications in Caerphilly?
Yes. Click "Set up alerts" on this page and you'll get a daily or weekly email listing every new demolition application published by Caerphilly. You can also narrow the alert to a postcode, street, or drawn area.

We check Caerphilly's planning portal daily. New demolition applications appear here within a day of being published.