121 Thornhill Park Road Southampton SO18 5TT

This site has had 2 applications since 2021: 2 approved, 0 refused.

• 21/00392/PAH Granted

  121 Thornhill Park Road Southampton SO18 5TT

  Erection of a single storey rear extension (Max Depth 4 m, Max Height 3.5 m, Eaves Height 2.35m)

  Decided 7 Apr 2021 Prior approval

1. 18 Mar 2026

   Received by Southampton

2. 12 May 2026

   Decision issued: Approve with Conditions

3. 25 Jul 2026

   Added to PlanIndex

Southampton granted permission on 12 May 2026, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.

Applications for works to trees cover protected trees: consent under a tree preservation order, or six weeks notice for trees in a conservation area. More in our guide to planning application types.

• 123 Thornhill Park Road Southampton SO18 5TT

  26/00557/PAH Submitted 8 Jun 2026 50 yards away

  90% historically approved · decision due ~3 Aug

  Erection of a single storey rear extension (Max Depth 6 m, Max Height 4 m, Eaves Height 3 m)

  Decided Extension
  Small domestic

• 121 Thornhill Park Road Southampton SO18 5TT

  21/00392/PAH Submitted 9 Mar 2021 50 yards away

  Erection of a single storey rear extension (Max Depth 4 m, Max Height 3.5 m, Eaves Height 2.35m)

  Granted Prior approval Extension 5 docs
  Small domestic

• 116 Thornhill Park Road Southampton SO18 5TS

  23/00285/TPO Submitted 26 Oct 2023 100 yards away

  T1 Beech - Fell

  Granted Trees 3 docs

• 92 Thornhill Park Road Southampton SO18 5TS

  24/00334/FUL Submitted 27 Mar 2024 100 yards away

  Redevelopment of site for erection of a two-storey building comprising 4 x flats (1 x 3-bedroom, 2 x 1-bedroom, 1 x 2-bedroom) with associated amenities following demolition of existing dwelling house (resubmission of: 23/01228/FUL).

  Granted Full applications New dwelling Demolition 16 docs
  Domestic

• 3 Hinkler Road Southampton SO19 6FR

  20/00597/FUL Submitted 11 May 2020 100 yards away

  Erection of a first floor side and rear extensions.

  Refused Full applications Extension 7 docs

• 14 Kootenay Avenue Southampton SO18 5RE

  21/00218/TPO Submitted 23 Jul 2021 100 yards away

  Tree Works

  Granted Trees 3 docs

• 26/00300/TPO Awaiting decision

  Glen Eyre Hall Main Building Glen Eyre Road Southampton SO16 3UF

  T491 Lime (Common) Remove root crown epicormic growth annually. T494 Oak (English) Remove epicormic growth to 6m. T495 Pear (Chanticleer) Remove epicormic growth. Mulch tree circle. T513 Oak (English) Reduce low extended over path by 2-3m T514 Pine (Corsican) Remove major dead wood. Crown reduce extended limbs over car parking by 2-3m T517 Western Red Cedar Trim back overhanging branch ends overhanging access road as previously undertaken. Remove major deadwood on all stems. Re-Mulch in winter. T518 Tulip Tree Remove major dead wood. Re-Mulch planting circle in winter after ground saturated. Monitor fungal decay at root crown. T519 Bay Laurel Crown reduce to the south by 2-3m and reshape. T522 Cypress (Lawson) Remove major dead wood. Weed tree circle. Mulch in winter. T528 Apple (Sweet Crab) Cut back branches from building to give clearance of 1m. T529 Oak (English) Reduce extended heavy limb to west over car park and bike store by 2-3m. Remove major dead wood. Clear vegetation around root crown. Reinspect. T530 Oak (English) Remove major dead wood. Remove epicormic regrowth and lift to 4m. Cut back branches from building to give clearance of 2m. Treat ivy. T532 Oak (English) Remove major deadwood. De-compact rootzone feed and mulch.

  Trees
• 26/00299/TPO Awaiting decision

  Glen Eyre Hall Main Building Glen Eyre Road Southampton SO16 3UF

  T457 Oak (English) Adjust slack flexible brace between co-dominant stems. T462 Sycamore Remove major dead wood. Sever Ivy at ground level and strip to 2m and remove section. Re-inspect. T472 Oak (English) Remove major dead wood. Gain access to inspect. Cut back branches from building to give clearance of 2m. T473 Oak (English) Gain access to reinspect. Remove major dead wood. T474 Pine (Scots) Remove major dead wood. Sever Ivy at ground level and strip to 2m and remove section. Clear vegetation laurel around tree. Re-inspect. T476 Maple (Norway) Remove major dead wood. Sever Ivy at ground level and strip to 2m and remove section. Clear laurel and Holly around tree. Re-inspect. T477 False Acacia Remove major deadwood. Crown lift to 4m. Clear basal vegetation to enable inspection. T483 Red Chestnut Remove major deadwood. Sever Ivy at ground level and strip to 2m and remove section. Remove epicormic growth to 4m. Clear basal vegetation. Re-inspect. T485 Sweet Chestnut Remove major dead wood. Remove epicormic regrowth to 4m. T489 Oak (English) Crown reduce extended limbs over path by 2-3m. Remove major dead wood. T490 Oak (English) Crown reduce extended limbs to North over path by 2-3m. Remove major dead wood.

  Trees
• 26/00284/TPO Awaiting decision

  House C Hartley Grove 40 Glen Eyre Road Southampton SO16 3FY

  T201 Sweet Chestnut - Remove major dead wood. Insert flexible brace between co-dominant stems. T204 Oak (English) - Sever Ivy at ground level and strip to 2m and remove section. Clear vegetation. Reinspect. T208 Sycamore - Crown lift to 6m remove major dead wood. Prune lowest branches overhanging shed. Clear vegetation. T210 Elm - Crown reduce leading arching stem by 4m. Remove major dead wood. T212 Pine (Scots) - Crown reduce to standing monolith at 10m T213 Pine (Scots) - Crown reduce to Standing monolith at 10m. T214 Pine (Scots) - Clear trunk timber arisings T216 Beech - Fully clear vegetation around root crown to fully inspect. Remove major dead wood.

  Trees
• 26/00292/TPO Awaiting decision

  Glen Eyre Hall Main Building Glen Eyre Road Southampton SO16 3UF

  T344 Oak (English) - Remove major dead wood. Remove epicormic growth to 6m. T345 Scots Pine - Remove major deadwood. Sever Ivy at ground level and strip to 2m and remove section. Clear vegetation. Re-inspect T351 Oak (English) - Remove epicormic growth to 4m. T361 Tree of Heaven - Fell close to ground level (approx 50mm). T363 Yew (Common) - Cut back branches from adjacent all buildings to give clearance of 1-2m. T364 Oak (English) - Remove epicormic growth to 6m. Remove upper crown dead trunk ivy and deadwood. T380 Oak (Holm) - Insert flexible brace between co-dominant stems. Remove major dead wood. T384 Oak (English) - Remove major dead wood. Clear vegetation around tree. Reinspect. T388 Oak (English) - Remove major dead wood. Remove epicormic growth to 6m. T390 Oak (English) - Remove epicormic growth to 6m. Clear vegetation around tree. Reinspect. T403 Oak (Holm) - Insert flexible Max tonnage brace between co-dominant stems. Crown reduce and reshape extended leaning stem over car park by 3-4m to previous reduction points. Fully recorded Aerial inspection cavity inspection. AS PER TREE SURVEY

  Trees
• 26/00280/TPO Awaiting decision

  Bassett House Glen Eyre Road Southampton SO16 3TU

  T1 Cedar of Lebanon Remove major dead wood. Full recorded Ariel inspection of all major branch unions. Monitor root crown for fungal fruiting bodies in autumn. To increase tree vigour - lift tarmac under crown spread and install permeable no-dig 3D webbing surface. T3 Lime (Common) Remove epicormic growth to 6m. Remove major dead wood. T5 Lime (Common) Remove epicormic growth to 6m. Remove major dead wood. T6 Holly (Common) Remove all deadwood. Sever Ivy at ground level and strip to 2m and remove section. Re-inspect T28 Holly Remove major deadwood. T31 Sycamore Fell and treat stump. T32 Holm Oak Cut back branches from building to give clearance of 2m. Crown lift to 6m. T33 Pear Remove major dead wood. Sever Ivy at ground level and strip to 2m and remove section. Crown lift to 3m T35 Sycamore Crown lift and Prune basal suckers and epicormic growth to 4m. Remove major deadwood. Sever Ivy at ground level and strip to 2m and remove section. Re-inspect T36 Beech Crown lift 3m. Sever Ivy at ground level and strip to 2m and remove section, Re-inspect T37 Holm Oak Clear surrounding vegetation. Sever Ivy at ground level and strip to 2m and remove section. Re-inspect

  Trees