Thornhill, Hampshire Planning Applications
Recent planning applications near Thornhill, Hampshire.
Hampshire · England · settlement
Planning applications in Thornhill are administered by Southampton City Council. View the full Southampton City Council planning applications page for approval rates and decision timelines.
About Thornhill
Thornhill is a suburban area located on the eastern edge of Southampton, England, bordered by three major roads. As per the 2001 census, it has a population of 11,460, with a notable demographic of 23.4% of residents under 16 years old, surpassing the city average, while 17.4% are aged 65 and over, also higher than the Southampton average. This demographic information may be relevant for those researching planning applications and community services in the area.
Enter a postcode to search for planning applications near Thornhill.
Town Insights
Property Prices
Average property sale price: £985,000 (based on 1 recent transactions from HM Land Registry).
Area Information
- Admin district: Southampton
- Parliamentary constituency: Southampton Itchen
- LSOA: Southampton 028D
Crime Statistics
0 crimes reported in 2026-05.
Flood Risk
No active flood warnings near Thornhill.
Keyword Scorecard
Planning constraint analysis based on the last 24 months of applications near Thornhill.
- Ecology & Wildlife Constraints (keywords: bats, bat survey, bat roost, great crested newt, GCN...)
- Trees & Landscape (keywords: tree preservation order, TPO, arboricultural, tree survey, root protection area...)
- Flood & Drainage (keywords: flood zone 2, flood zone 3, flood risk assessment, FRA, surface water...)
- Heritage & Conservation (keywords: listed building, grade II, grade II*, grade I, conservation area...)
- Green Belt (keywords: green belt, inappropriate development, very special circumstances, openness)
- Highways & Access (keywords: visibility splays, highway authority objection, access arrangement, parking provision, transport statement...)
- Refusal & Risk Indicators (keywords: refusal, delegated refusal, appeal dismissed, overdevelopment, character and appearance...)
- Planning Process & Appeals (keywords: appeal lodged, appeal allowed, appeal dismissed, public inquiry, inspector)
Planning Activity Summary
Approval rates, average decision times, and application type distribution for Thornhill based on the last 24 months of planning data.
Nearby Applications
11 planning applications found near Thornhill.
- 26/00683/FUL - 44 Eynham Avenue Southampton SO19 5LB
Roof extension including front-facing dormer window and formation of gable-end to provide accommodation within roof.
Status: Undecided | Council: Southampton | Date: 2026-06-09 - 26/00141/TPO - 682 Bitterne Road East Southampton SO18 5QY
Sycamore Maple - Fully remove diseased/dead tree
Status: Undecided | Council: Southampton | Date: 2026-05-21 - 26/00502/BNGDIS - 29 Farringford Road Southampton SO19 6PN
Application for approval of details reserved by the 10% Biodiversity Net Gain condition associated with permission 25/00734/FUL for dwellings providing details of a 'Biodiversity Gain Plan'.
Status: Undecided | Council: Southampton | Date: 2026-05-11 - - 29 Farringford Road Southampton SO19 6PN
Application for approval of details reserved by the 10% Biodiversity Net Gain condition associated with permission 25/00734/FUL for dwellings providing details of a 'Biodiversity Gain Plan'.
Status: Undecided | Type: Conditions | Council: Southampton | Date: 2026-05-11
View full details - - Antelope Park Bursledon Road Southampton
Notification for prior approval for the installation of solar photovoltaic equipment to the roof
Status: Undecided | Type: Outline | Council: Southampton | Date: 2026-02-25
View full details - - Land Adj to 41 Thornhill Avenue Southampton SO19 6PS
Minor material amendment sought to planning permission ref 23/00696/FUL Erection of 2x 3-bed detached houses and formation of new access together with associated parking and cycle/refuse storage to in
Status: Undecided | Type: Amendment | Council: Southampton | Date: 2026-01-28
View full details - - 40 Caerleon Drive Southampton SO19 5LF
Erection of part single/part two storey rear extension with stepped access to garden.
Status: Conditions | Type: Full | Council: Southampton | Date: 2026-01-05
View full details - - 27 Eynham Avenue Southampton SO19 5JY
Application for a lawful development certificate for a proposed single storey rear extension and detached garage.
Status: Permitted | Type: Outline | Council: Southampton | Date: 2025-09-29
View full details - - 4 High Firs Road Southampton SO19 8HA
Non-material amendment sought to planning permission ref 22/01332/FUL for changes to approved plans for installation of 2 velux windows on rear single storey extension.
Status: Permitted | Type: Amendment | Council: Southampton | Date: 2024-10-11
View full details - - 7A Browning Avenue Southampton SO19 6PW
Erection of rear timber pergola and decking (Retrospective)
Status: Conditions | Type: Full | Council: Southampton | Date: 2024-10-03
View full details - - 33 Sylvan Avenue Southampton SO19 5JW
Crown lift chestnut tree in rear garden to give a clearance of 5 metres from ground level. Reducing and removing lower limbs with cuts not exceeding 75mm.
Status: Conditions | Type: Trees | Council: Southampton | Date: 2023-10-14
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A brief summary of Thornhill in Hampshire
Thornhill is a suburban area located on the eastern edge of Southampton, England, bordered by three major roads. As per the 2001 census, it has a population of 11,460, with a notable demographic of 23.4% of residents under 16 years old, surpassing the city average, while 17.4% are aged 65 and over, also higher than the Southampton average. This demographic information may be relevant for those researching planning applications and community services in the area.
Property prices in Thornhill show an average sale price of £985,000, based on 1 recent transactions recorded by HM Land Registry.
There were no crimes reported in the immediate area during the most recent reporting period. This makes Thornhill a particularly low-crime area.
For anyone interested in property development or monitoring local planning decisions, Thornhill planning applications can be searched by entering a local postcode above. Results include full application details, decision status, and the ability to track applications over time and set planning alerts to help you monitor and review pending planning applications.
Planning Activity in Thornhill
In the last 24 months, 30 planning applications were submitted near Thornhill. Of these, 75% were approved, with an average decision time of 51 days.
This is below the national average of approximately 87%, which may reflect stricter local policies, sensitivity of the area, or higher levels of speculative applications. Pre-application advice is particularly worthwhile near Thornhill.
The average decision time of 51 days is within the government's 8-week statutory target for minor applications, indicating an efficient planning department.
The most common application types near Thornhill were outline applications (7), full planning applications (3), amendments (3).
In terms of development scale, 2 medium-scale applications, 14 smaller schemes were submitted.
1 planning appeal was lodged, of which 0 were allowed and 1 was dismissed (0% success rate). This low success rate indicates that the council's refusal decisions are generally upheld by the Planning Inspectorate.
Nearby Towns
Explore planning applications in nearby areas:
- Sholing Common planning applications
- Weston Common planning applications
- Harefield planning applications
- Hightown planning applications
- Netley Hill planning applications
- Sholing planning applications
- Thornhill Park planning applications
- Bitterne planning applications
Related Planning Guides
- What Is Planning Permission in the UK? — Planning permission is the formal approval you need from your local council before making certain changes to a building or piece of land.
- What Is Permitted Development? — Permitted development rights allow certain building works and changes of use without the need to apply for planning permission.
- How Long Does Planning Permission Take? — Typical timelines for planning permission decisions in the UK, from submission to approval, and what can cause delays.