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Get started21a is a three-bedroom mid-terrace house in Lambeth, London, London (SW4 9LA). It has a recorded floor area of 142 m² (around 1528 sq ft), construction records dating it to 1900-1929 and council tax band E. The latest certificate (November 2019) shows a C (score 70). When first surveyed in January 2009 the rating was D, the property has climbed 1 band since. Between certificates, roof efficiency went from Poor to Average and lighting went from Very Poor to Very Good.
Sale prices here have outpaced London HPI: 3.5% per year against 0% for the wider region. Today's modelled estimate of £1,290,000 is 17.3% above the 2020 sale price. At 142 m² the property is well over the postcode median (64 m² across 47 EPCs), placing it in the larger end of the local stock. 2 planning records sit against the property, 2 approved, 0 refused. Past consents include a loft conversion, meaningful when judging how the property has evolved. Most recent transfer: February 2020 at £1,100,000.
Installation of five rooflights to roof slope of rear addition, and associated internal alterations.
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£1,290,000
Modelled from EPC, postcode comparables and a sale-price growth of 3.5% per year over 5 years.
£1,100,000
Growth on file: 3.5% per year over 5 years.
21a outperforms the street on habitable rooms by a wide margin.
Price per m²
£7,746
Street avg £9,874
Floor Area
142 m²
Street avg 61 m²
Habitable Rooms
5 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
54.8dB

Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Roof insulation improved
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
Erection of a loft conversion with full width rear mansard roof incorporating a window and door and installation of 2 rooflights to the front elevation with associated alterations including raising party wall.
14 February 2020Most recent
£1,100,000
+18.9%over 4 years17 February 2015
£925,000
Median price across the last 5 sales in SW4 9LA: £628,000 (2025–2025).
Street avg 3 rooms
CO₂ Emissions
4.3 t/year
Street avg 2.8 t/year
SW4 9HG
Closest school
0.1 km
Bonneville Primary School. 69 schools nearby.
Night-time· 23:00 – 07:00
45.3dB
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