Single-storey extension and outbuilding at Tintagel, Cadnam, Southampton

What was proposed

The application sought a single-storey rear extension, demolition of an existing element, an outbuilding and an open-sided porch.

“This application seeks permission for a single storey rear extension, demolition of an existing single storey element; and an outbuilding. The extension would include two rear gables and bifold doors and five solar panels on each of the south western facing roof slopes. The materials would comprise brickwork to the lower 0.8 metres with smooth cream render proposed to the upper 1.6 metres; natural oak cladding on the apex of the rear gables and slate tiles.”

“The outbuilding would comprise a single car garage and lean to, located to the south of the dwelling. The materials proposed are…”

Officer report

The site

The dwelling lies in a conservation area, is a non-designated heritage asset, and is within Flood Zones 2 and 3.

“The application site is located on the eastern side of Newbridge Road in Cadnam within the Forest Central (North) Conservation Area. The dwelling has been identified as a Non-Designated Heritage Asset (NDHA) and is therefore afforded a degree of protection proportionate to its status through both national and local planning policy. Residential properties lie to the north and south. The site lies within Environment Agency Flood Zones 2 and 3.”

Officer report

Earlier planning history

A previous lawful development certificate allowed a single-storey rear extension and roof alterations under permitted development.

“Single storey rear extension; roof alteration to existing extension (25/01169LDCP)- certificate issued (permitted development) on 04 February 2026.”

Officer report

Consultation and representations

The parish council recommended permission, the conservation team supported the proposal subject to a condition, and no representations were received.

“Copythorne Parish Council: Recommend permission. Whilst we recognise policy, we find the aesthetic of the proposed works perfectly acceptable as they make the property more functional.”

“Building Design and Conservation Area Team: Support subject to condition.”

Officer report

Who spoke

The agent, applicant and a parish councillor spoke for the proposal.

Vote and decision

The committee unanimously refused planning consent, citing the excessive floor-space increase and insufficient flood-risk information.

“In order to help safeguard the long term future of the countryside and the intrinsic character of the National Park, the Local Planning Authority considers it important to resist the cumulative effect of enlargements being made to rural dwellings.”

“The proposed development comprises a minor extension in Environment Agency Flood Zones 2 and 3. Insufficient information has been provided to ascertain the flood risk impacts of the proposal and whether it would be appropriately flood resistant and resilient contrary to standing advice. The proposed development is therefore contrary to Policy DP12 of the adopted New Forest National Park Local Plan (August 2019) and Section 14 of the National Planning Policy Framework.”

Minutes