Planning permission in Test Valley
Most single-storey rear extensions within the national permitted development limits don't need planning permission in Test Valley. The rules are stricter in its 36 conservation areas, where side extensions, two-storey extensions and loft dormers need permission. Check your address to see which rules apply.
Test Valley at a glance
- Conservation areas
- 36
- Article 4 areas
- Not published
- Protected landscapes
- New Forest, North Wessex Downs
- Planning decisions
- Test Valley Borough Council
How many conservation areas are there in Test Valley?
Test Valley has 36 conservation areas. In a conservation area, permitted development rights are reduced: side extensions, two-storey extensions, loft dormers and cladding all need planning permission, and many councils add Article 4 directions on top.
- Abbotts Ann
- Ampfield
- Amport and Monxton
- Andover
- Appleshaw
- Barton Stacey
- Braishfield
- Broughton
- Chilbolton
- Chilworth Old Village
- East Cholderton
- Fyfield
- Goodworth Clatford
- Grateley
- Houghton and Bossington
- Hurstbourne Tarrant and Ibthorpe
- Kimpton
- Kings Somborne
- Leckford
- Linkenholt
- Longparish
- Longstock
- Michelmersh
- Monxton
- Mottisfont
- Nether, Over and Middle Wallop
- Quarley
- Romsey
- Stockbridge
- The Pentons
- Thruxton
- Upper Clatford
- Upton
- Vernham Dean
- West Tytherley
- Wherwell
Read more: extensions, loft dormers, garden rooms and solar panels in a conservation area.
Does Test Valley have Article 4 directions?
Test Valley hasn't published any Article 4 boundaries on planning.data.gov.uk. Most councils have at least one Article 4 direction, often in conservation areas, so check the council's website or ask its planning team before relying on permitted development.
What is an Article 4 direction?
Is any of Test Valley in a national park, National Landscape or green belt?
- National park in or bordering Test Valley: New Forest.
- National Landscape (Areas of Outstanding Natural Beauty) in or bordering Test Valley: North Wessex Downs.
National parks and National Landscapes restrict permitted development in similar ways to conservation areas. Read more: extensions, loft dormers and garden rooms.
Listed buildings and protected trees in Test Valley
Listed buildings everywhere in England are recorded by Historic England, and the checker looks for them at every address. Test Valley doesn't publish listed building outlines, so where a listed building is recorded near an address, we ask the homeowner to check whether it's theirs.
Test Valley doesn't publish its tree preservation orders as data. If there are mature trees near your project, ask the council whether any are protected before you start.
What planning data does Test Valley publish?
| Data | Status | Records |
|---|---|---|
| Conservation area boundaries | Published | 36 |
| Article 4 direction boundaries | Not published | 0 |
| Listed building outlines | Not published | 0 |
| Tree preservation order areas | Not published | 0 |
| Protected trees | Not published | 0 |
Planning work on a home in Test Valley? Put a pin on your house and we'll check it against all of this.
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Data from planning.data.gov.uk, published by Test Valley Borough Council and national bodies under the Open Government Licence, last updated here on 30 October 2026. Test Valley Borough Council website.