THE HORNIMAN MUSEUM & GARDENS, 100 LONDON ROAD, LONDON, SE23 3PQ

1. 22 Jun 2026

   Received by Lewisham

2. 29 Jul 2026

   Validated

   Checked as complete and ready for consideration.

3. 10 Aug 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 23 September 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Lewisham took a median of 53 days over the applications it decided in the last year.

This application is with Lewisham for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.

The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.

This page mirrors an entry on the statutory planning register that Lewisham is required to keep. The published feed for this record does not state which type of application it is, which is common for older entries and for some council systems; the register entry on the council portal will say, alongside the case officer and any consultation dates.

Every planning application follows the same broad path: submission, validation, publicity, then a decision by officers or committee. Our guide to planning application types explains the common types and what each can approve.

• THE HORNIMAN MUSEUM & GARDENS, 100 LONDON ROAD, LONDON, SE23 3PQ

  DC/26/143238 Submitted 6 Mar 2026 0m away

  Internal and external upgrade improvement works of the existing CUE building, replacement of gas boiler with air-to-water source heat pumps, installation of a new mechanical ventilation heat recovery (MVHR), together with new floor insulation, draught proofing, sealing windows, air and box beams vents on the roof, new electrical cables and repairs to external timbers at Horniman Museum, 100 London Road SE23.

  Granted Full applications Windows or glazing 21 docs

• THE HORNIMAN MUSEUM & GARDENS, 100 LONDON ROAD, LONDON, SE23 3PQ

  DC/26/143242 Submitted 6 Mar 2026 0m away

  Replacement of the existing gas cabinet air heater with air-to-air source heat pump (ASHPs) and air handling unit, located on the west side of the building, together with the replacement of acrylic triple layer polycarbonate, installation of new greenhouse thermal screens, new extract fan in the north elevation, together with draught proofing works and the electrical cables in the Butterfly House at Horniman Museum, 100 London Road SE23.

  Granted Full applications 25 docs

• THE HORNIMAN MUSEUM & GARDENS, 100 LONDON ROAD, LONDON, SE23 3PQ

  DC/26/143750 Submitted 21 Apr 2026 0m away

  Details submitted pursuant to Condition 10-Digital Display of Listed Building Consent DC/23/130988 dated 30th August 2023 at The Horniman Museum & Gardens, 100 London Road SE23.

  Granted Full applications 5 docs

• HORNIMAN GARDENS, 100 LONDON ROAD, LONDON, SE23 3PQ

  DC/25/142249 Submitted 25 Nov 2025 0m away

  REAR (nature trail): ONE Lime (T1)(approx ht.12m) LATERAL REDUCE SPREAD by 2m from 11m to 9m on E compass point, no height reduction. Reason: to give 2m clearance from the lamp column, pruning to suitable points to maintain natural aesthetic. REAR (nature trail): ONE Sycamore (T237)(approx.ht.12m) LATERAL REDUCE by removing dead stem. Reason: the stem has died, remove for health & safety reasons, the tree will remain. REAR (nature trail): ONE Sycamore (T264)(approx.ht.14m) LATERAL REDUCE by removing south stem which has died. Reason: the stem has died, remove for health & safety reasons, the tree will remain. REAR (nature trail): ONE Prunus (T3)(approx.ht.8m) FELL. Reason: strong eastward lean over the footpath that runs through the nature trail, poor physiological condition noted previously, lean appears to be worsening, replant with another prunus - see informative A below for alternative species. REAR (nature trail): Sycamore (T2) remove deadwood and stub ? exempt works. Informative A: the proposed replacement for Prunus T3 is greatly appreciated to maintain the woodland habitat for wildlife and visitors wellbeing, suggested alternative species to Prunus: alder buckthorn, grey or goat willow, hazel, purging buckthorn, elder. Informative B: to thank for retaining the treed character of the disused rail line for amenity, wildlife habitat and shade to reduce increasingly high summer temperatures due to climate change. Informative C: please continue creating habitat log piles with arisings for wildlife and biodiversity.

  Granted Trees 9 docs

• HORNIMAN MUSEUM AND GARDENS, 100 LONDON ROAD, LONDON, SE23 3PQ

  DC/23/130056 Submitted 24 Jan 2023 0m away

  REAR (near mini golf): ONE London Plane (T174)(ht:approx.20m) FELL and replace. Reason: basal fungal brackets, declining physiological condition (loss of fine twigs, large areas of bark loss on upper branches seen from disabled parking area), resistograph results show very low resistance in the low stem holding wood hugely increasing the likelihood of failure; given the size of the tree, the proximity to the mini golf course, on higher ground than adjacent disabled parking area, the combination of the compromised strength and high footfall mean the tree must be removed to prevent health & safety issues in the future; a native species tree is proposed to be planted as a replacement. Informative A: the proposed replacement tree planting is hugely appreciated to maintain the treed setting and amenity of the Horniman Gardens. In view of the specimen trees and arboretum character of the gardens, a large canopy replacement tree is suggested with species such as: hornbeam, oak, wild service tree, London plane, cut leaved beech, Indian horse chestnut, wingnut, Japanese pagoda tree, golden rain tree. Informative B: where possible please continue to retain safe standing dead timber or create habitat wood piles on site and lay cut branches between stakes as a linear 'dead hedge' for wildlife and biodiversity.

  Granted Trees 7 docs

• THE HORNIMAN MUSEUM & GARDENS, 100 LONDON ROAD, LONDON, SE23 3PQ

  DC/26/143344 Submitted 12 Mar 2026 0m away

  FRONT (London Rd): ONE Bay (T1)(ht.7m) FELL. Reason: it is located approximately 1m from the main foundations of the building so removal will mitigate future issues. A mediterranean garden will be planted up as a replacement as an example of a drought resistant form of urban planting. REAR (by nursery): ONE Beech (T2)(ht.8m) FELL. Reason: it is dominated by the larger beech & yew trees growing nearby leading to phototropic lateral growth towards the nursery that will cause problems for the gutters & roof. Another beech tree will be planted a little further away in the south downs. REAR (by nursery): ONE Yew (T3)(ht.10m) CROWN REDUCE HEIGHT by 1m from 10m to ht.9m, LATERAL REDUCE by 2m from 8m to 6m Southern laterals. Reason: to rebalance the tree keeping a natural aesthetic. Informative A: the replacement tree for beech (T2) is hugely appreciated to maintain the treed character of the gardens, for amenity, wildlife and shade to reduce increasingly high summer temperatures due to climate change. Informative B: please create habitat log piles with arisings for wildlife and biodiversity.

  Granted Trees 8 docs