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Planning application

DC/26/143238

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

Granted Lewisham Full Planning Permission

Proposal

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.

As published by the council, reference DC/26/143238

Timeline

Dates from the published record

  1. 6 Mar 2026

    Received by Lewisham

  2. 31 Mar 2026

    Validated

    Checked as complete and ready for consideration.

  3. 23 May 2026

    Decision issued: Granted

  4. 25 Jul 2026

    Added to PlanIndex

What a grant of permission means

The process from here

Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.

Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.

About full applications applications

How this application type works

A full application seeks permission for a complete, detailed proposal in one go: siting, design, access and landscaping are all fixed at this stage. It is the standard route for new buildings, conversions and changes of use. The statutory target is eight weeks for smaller schemes and thirteen weeks for major development, though complex cases often take longer by agreement.

More on full applications applications in our guide

Nearby applications

Within 500 metres

  • DC/26/143242 Granted

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

    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.

    6 Mar 2026 0m away Full applications
  • DC/26/143750 Granted

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

    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.

    21 Apr 2026 0m away Full applications
  • DC/26/143344 Granted

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

    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.

    12 Mar 2026 0m away Trees
  • DC/26/143667 Granted

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

    FRONT: ONE Catalpa / Indian Bean tree (approx HEIGHT 8m ) (T1) - REMOVAL of TWO dangerous Branches. REASON: The first has snapped and is hanging in the canopy. The second is a hazard beam that has horizontal splits. Both should be removed to mitigate health & safety issues as the gardens are a high volume area. Informative A: to thank for retaining the tree 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.

    13 Apr 2026 0m away Trees
  • DC/26/143935 Granted

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

    REAR (by pitch & putt): ONE Cedar (T1)(approx.ht.16m) remove one snapped limb. Reason: it has snapped and hanging in the canopy, to be removed to mitigate health & safety issues as the gardens are a high volume area. REAR (by rail line nature trail): ONE Ash (T2)(approx.ht.12m) remove snapped and fallen canopy. Reason: canopy has snapped out due to a large cavity causing structural failure and the canopy is now lying on the ground, the stem to be left as it stands as monolith. Informative A: thank you for careful management to retain trees and monoliths for amenity, wildlife and landscape character. Informative B: successional planting is encouraged with another cedar planted nearby for future feature tree in this part of the garden near the top entrance off Horniman Drive. Informative C: please create habitat log piles with some arisings for wildlife and biodiversity.

    5 May 2026 0m away Trees
  • DC/26/142620 Granted

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

    REAR (Nature Trail/new café & play, boating lake area): TWELVE Lombardy Poplar (1xT002, 11xTG001 approx.ht.20m) FELL. Duty to replace applies. Reason: co-dominant stem 14m long cracked out from T002, one-sided crowns of TG001 over high target risk of new café and play area, all 12 x trees in poor condition, health & safety, urgent works required to fell identified in Haydens tree survey 21.11.25. Felling proposed weekend 17 &18 Jan 2026. Informative A: duty to replace applies - the landowner has a duty to plant another tree of an appropriate size and species when a tree is removed in a conservation area because it is dead or presents an immediate risk of serious harm. Ref. Tree Preservation Orders and trees in conservation areas, guidance, para 121. Informative B: proposed replacement planting details to be submitted to the council after felling when the replanting locations have been be clarified, suggested locations: near the nature trail with native tree species eg hornbeam, aspen, field maple, wild cherry, goat/grey willow; on boundary beside the café and play area between the poplar stumps eg mixed native species hedge; within the Gardens near the café and play area eg several native or non-native trees. Informative C: wildlife habitat and biodiversity - encourage stumps of the poplar trees to be retained in situ, create additional habitat log piles with arisings within the Gardens and use shredded timber to spread 50mm mulch over RPAs of other trees in the Gardens such as the Cedar by the new communal garden near the Butterfly house (ref T213, Nature+Love project DC/23/130987). Informative E: Roosting bats possibility - suggest soft fell with timber left on site overnight for any roosting bats to emerge.

    9 Jan 2026 0m away Trees

In Lewisham

  • DC/26/144236 Refused

    FLAT ABOVE, 236 STANSTEAD ROAD, LONDON, SE23 1DD

    The subdivision of the existing duplex into two self-contained residential units at 236 Stanstead Road, SE23, with associated cycle and waste storage and installation of four photovoltaic panels on the western roof slope.

    3 Jun 2026 Full applications
  • DC/26/143441 Refused

    58A MANOR PARK, LONDON, SE13 5RL

    The formation of a vehicular crossover at 58A Manor Park SE13.

    23 Mar 2026 Full applications
  • DC/26/144261 Granted

    20, 21, 22, 23, GRANVILLE GROVE, LONDON, SE13 5AS

    Installation of replacement timber sash windows to the front elevation and timber windows and doors on the rear elevation at 20 (A & B), 21 (A & B), 22 (A & B) & 23, Granville Grove, LONDON, SE13.

    8 Jun 2026 Full applications
  • DC/26/144265 Granted

    61-63 CRESSINGHAM ROAD, LONDON, SE13 5AQ

    Installation of replacement timber sash windows to the front elevation and uPVC windows and doors on the rear elevation at 61 & 63 Cressingham Road, SE13.

    8 Jun 2026 Full applications
  • DC/26/144246 Granted

    34-40 EASTDOWN PARK, LONDON, SE13 5HS

    Details submitted pursuant to Conditions 9(a) (Refuse and Recycling Facilities), 11(a) (Hard Landscaping) and 14(a) (Soft Landscaping) of planning permission DC/20/119744 dated 16th November 2022 (amended by DC/24/138431 dated 28th July 2025) at 34-40 Eastdown Park SE13.

    5 Jun 2026 Full applications