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Get started23 Klea Avenue is a semi-detached house in Lambeth, London, London (SW4 9HG). It has a recorded floor area of 246 m² (around 2648 sq ft), construction records dating it to 1900-1929 and council tax band G. The latest certificate (July 2020) shows a D (score 64), on the cusp of jumping into the C band. When first surveyed in July 2010 the rating was E, the property has climbed 1 band since. Between certificates, lighting went from Very Poor to Very Good; while hot-water efficiency dropped from Very Good to Good and main heating dropped from Very Good to Good. The recommended improvements would push it to C (score 76).
Sale prices here have outpaced London HPI: 7.7% per year against 0% for the wider region. Today's modelled estimate of £2,034,000 is 12.3% below the 2025 sale of £2,320,000, an unusual pattern given regional price growth and worth checking against the EPC condition. On a £-per-square-foot basis, the last sale (£876/sq ft) was about 98.1% above the typical sold price in the postcode. At 246 m² the property is well over the postcode median (130 m² across 21 EPCs), placing it in the larger end of the local stock. A recent sale: £2,320,000 in May 2025. 2 planning records sit against the property, 2 approved, 0 refused. Past consents include an extension, meaningful when judging how the property has evolved.
23 Klea Avenue's carbon output runs well above what efficient homes in the postcode produce.
Installation of an external spiral staircase from ground to first floor level for means of escape purposes with associated railings, and the replacement of first floor window with door.
Latest sale on 23 Klea Avenue was the highest on Land Registry record across the postcode.
£2,034,000
Modelled from EPC, postcode comparables and a sale-price growth of 7.7% per year over 30 years.
£2,320,000
Growth on file: 7.7% per year over 30 years.
Floor Area for 23 Klea Avenue runs comfortably ahead of the street norm.
Price per m²
£9,431
Street avg £9,395
Floor Area
246 m²
Street avg 151 m²
Habitable Rooms
8 rooms
Rail-style transport is unusually close for this postcode.
Crime
9/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Abbeville Road — bus stop.

Daytime· 07:00 – 23:00
54.9dB

Changes detected from historical EPC data
Hot water efficiency decreased
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
Extension: Rear of property
Removal of part of existing rear extension and replacement with new larger flat roofed extension with glazed elevations and installation of rooflights, replacement of second floor bathroom extension with new larger extension, and associated alterations.
1 May 2025Most recent
£2,320,000
-7.2%over 3 years11 November 2021
£2,500,000
+1.0%over 9 months3 February 2021
£2,475,000
+7.6%over 4 years1 July 2016
£2,300,000
+64.3%over 5 years19 October 2010
£1,400,000
+60.9%over 7 years4 July 2003
£870,000
+241.2%over 7 years7 September 1995
£255,000
Median price across the last 5 sales in SW4 9HG: £1,430,000 (2025–2021).
Street avg 6 rooms
CO₂ Emissions
7.0 t/year
Street avg 6.4 t/year
SW4 9LY
Closest school
0.2 km
Bonneville Primary School. 69 schools nearby.
Night-time· 23:00 – 07:00
45.6dB
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