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Get started55 Calton Avenue is a semi-detached house in Southwark, London, London (SE21 7DF). It has a recorded floor area of 228 m² (around 2454 sq ft), construction records dating it to 1900-1929 and council tax band G. The latest certificate (July 2020) shows an E (score 40), well below the UK norm with real room to improve. The recommended improvements would lift it to C (score 71), a 2-band jump.
6 planning records sit against the property, 3 approved, 0 refused. Past consents include an extension and a conservatory, meaningful when judging how the property has evolved. The record references conservation-area consent, which constrain future alterations. Today's modelled estimate of £3,463,000 is 28.3% above the 2020 sale price. On a £-per-square-foot basis, the last sale (£1,100/sq ft) was about 42.1% above the typical sold price in the postcode. Most recent transfer: October 2020 at £2,700,000.
55 Calton Avenue's carbon output runs well above what efficient homes in the postcode produce.
55 Calton Avenue sits within a conservation area — exterior works face additional planning controls.
Works to tree in a conservation area: Lime (T1) - crown reduce Reduce height by 3m from 11m to 8m. Reduce lateral spread by 3m from 10m to 7m. Reduction to shape canopy, pruning to suitable points and maintaining natural aesthetic. There are a number of dead limbs and die back in the canopy. The general physiological condition appears to be declining. It is hoped that the reduction will promote healthier growth. The tree will tolerate the pruning as specified above.
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£3,463,000
Modelled from EPC, postcode comparables.
£2,700,000
Recorded with HM Land Registry.
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Detailed AI analysis
Habitable Rooms for 55 Calton Avenue runs comfortably ahead of the street norm.
Price per m²
£11,842
Street avg £10,047
Floor Area
228 m²
Street avg 243 m²
Habitable Rooms
9 rooms
Rail-style transport is unusually close for this postcode.
Crime
6/mo
Rising year-on-year across the wider district.
Nearest stop
0.2 km
Dulwich Village (SE21) — bus stop.

Daytime· 07:00 – 23:00
53.1dB

Details of condition 3 (External Materials) as required by planning permission ref. 24/AP/2749 which is a variation of planning permission ref: 23/AP/2601 for 'Proposed works to replace the existing conservatory with a new single storey side infill extension; increase the height of the rear outrigger roof to create a new bedroom within the attic space, with associated roof lights. The reconfiguration of the outrigger's first floor window and door to the terrace, and the replacement of the second floor rear dormer with a wider dormer window. Window replacements to front, rear and side elevations.'
4 more applications for this property
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28 October 2020Most recent
£2,700,000
Median price across the last 5 sales in SE21 7DF: £3,400,001 (2024–2021).
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Street avg 8 rooms
CO₂ Emissions
14.0 t/year
Street avg 12.8 t/year
SE21 7EY
Closest school
0.2 km
Dulwich Village Church of England Infants' School. 68 schools nearby.
Night-time· 23:00 – 07:00
42.7dB