The Horniman Museum & Gardens, 100 London Road, London, SE23 3PQ
Proposal
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.
- Received
- 6 March 2026
- Decided
- 11 May 2026 · Granted
- Decision level
- Delegated (officer decision)
- Council
- London Borough of Lewisham
- Ward
- Forest Hill
Boundary © HM Land Registry, © Ordnance Survey · details
This information is subject to Crown copyright and database rights 2026 and is reproduced with the permission of HM Land Registry. The polygons (including the associated geometry, namely x, y co-ordinates) are subject to Crown copyright and database rights 2026 Ordnance Survey AC0000851063. Conditions of use.
- ReceivedSubmitted6 Mar
- ValidatedValidated9 Mar
- Consult.Consultation4 May
- TargetTarget Date4 May
- DecidedDecided11 May
Decided in 63 days (council typically 56)
This is a full planning application at THE HORNIMAN MUSEUM & GARDENS, 100 LONDON ROAD, LONDON, SE23 3PQ. Lewisham has handled 2,816 applications of this type and approves 81% of them, typically deciding them in 66 days. This one was decided in 66 days. The site is in a conservation area, with 4 listed buildings nearby. There have been 11 other applications at this address. In the past year there have been 196 applications across Forest Hill. We hold 2,595 applications in total for the SE23 postcode area.
Application Details
Applicant & Agent
Planning Application Dates
Planning Decision
Publicity
Appeal
Additional Information
Source: Lewisham
Contains public sector information from the Planning London Datahub, licensed under the Open Government Licence v3.0.
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Associated applications
- 202612 Mar
FRONT (London Rd): ONE Bay (T1)(ht.7m) FELL. Reason: it is located approximately 1m from the main foundations…
ApprovedTrees in Conservation AreasFiled alongsideDC/26/143344 - 20266 Mar
Internal and external upgrade improvement works of the existing CUE building, replacement of gas boiler with…
ApprovedFull Planning PermissionFiled alongsideDC/26/143238 - 20266 Mar
Replacement of the existing gas cabinet air heater with air-to-air source heat pump (ASHPs) and air handling…
This applicationApprovedFullDC/26/143242
Planning history at this site
13 other applications at this property, newest first.
- 202623 Jun
Details submitted pursuant to Condition 13-External Lighting of planning permission DC/23/130987
ApprovedDischarge of conditionsDC/26/144469 - 202622 Jun
An application submitted under Section 96a of the Town and Country Planning Act 1990 for Minor Material…
PendingVariation of conditions (s73)DC/26/144466 - 202618 Jun
Details submitted pursuant to Condition 3-Mechanical Services/Noise Control of Listed Building Co...
ApprovedDischarge of conditionsDC/26/144379 - 202626 May
REAR: ONE Willow tree (T1) - Ht approx 12m FELL to 4m. REASON: Fell to leave a monolith for habit...
ApprovedDead & Hazardous TreesDC/26/144126 - 20265 May
REAR (by pitch & putt): ONE Cedar (T1)(approx.ht.16m) remove one snapped limb. Reason: it has snapped and…
ApprovedDead & Hazardous TreesDC/26/143935 - 202624 Apr
Details submitted pursuant to Condition 14 (Delivery and Servicing Plan-Cafe) and Condition 18 (Heritage…
ApprovedDischarge of conditionsDC/26/143805 - 202621 Apr
Details submitted pursuant to Condition 10-Digital Display of Listed Building Consent DC/23/130988
ApprovedListed building consentDC/26/143750 - 202613 Apr
FRONT: ONE Catalpa / Indian Bean tree (approx HEIGHT 8m ) (T1) - REMOVAL of TWO dangerous Branches. REASON…
ApprovedDead & Hazardous TreesDC/26/143667 - 202627 Mar
Details submitted pursuant to Condition 13-External Lighting and Condition 20-PV Panels (Community Space…
RefusedDischarge of conditionsDC/26/143522 - 202523 Oct
Details submitted pursuant to Condition 6 (Surface Water) of planning permission DC/23/130987
ApprovedVariation of conditions (s73)DC/25/141908 - 20257 Aug
Details submitted pursuant to Condition 8-Handrail of Listed Building Consent DC/23/130988
ApprovedListed building consentDC/25/141056 - 202514 Jul
Details submitted pursuant to Condition 13-New Plant Enclosure on West Elevation of Listed Building Consent…
ApprovedListed building consentDC/25/140810 - 202428 Feb
Installation of 3, four metre high wifi posts along the western boundary of the Horniman Gardens, 100 London…
RefusedFull Planning PermissionDC/24/135045
Planning constraints
Designations that overlap or adjoin the site outline.
- Conservation area: Forest Hill
- Article 4 direction: Small HMO Northern Extension+2 more
- Flood zone 1: Low probability (rivers and sea)
Possibly incomplete for this council: tree preservation orders.
Also checked, none recorded (19)
flood storage areas, green belt, scheduled monuments, World Heritage Sites, World Heritage Site buffer zones, registered battlefields, Heritage at Risk entries, nutrient neutrality catchments, national parks, National Landscapes, SSSIs, Special Areas of Conservation, Special Protection Areas, Ramsar sites, ancient woodland, national nature reserves, local nature reserves, heritage coasts and brownfield registers.
A guide only, from official open data; it is not a planning search. Flood zones cover rivers and sea, not surface water.
Data © Crown copyright and others · sources and licences
Contains public sector information from planning.data.gov.uk (MHCLG and local planning authorities), licensed under the Open Government Licence v3.0. © Crown copyright and database right 2026.
© Historic England 2026. Contains Ordnance Survey data © Crown copyright and database right 2026. The Historic England GIS Data contained in this material was obtained on 2026-10-09. The most publicly available up to date Historic England GIS Data can be obtained from HistoricEngland.org.uk.
© Natural England copyright. Contains Ordnance Survey data © Crown copyright and database right 2026.
© Environment Agency copyright and/or database right 2026. All rights reserved. Flood Map for Planning, Open Government Licence v3.0.
Contains Ordnance Survey data © Crown copyright and database right 2026.
Source: Office for National Statistics licensed under the Open Government Licence v.3.0. Contains OS data © Crown copyright and database right 2026.
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