40a is a semi-detached house in Lambeth, London, London (SE19 1NL). It has a recorded floor area of 37 m² (around 398 sq ft) and construction records dating it to 1900-1929. At 37 m² this is the smallest unit on EPC record across the building (37–250 m²). The building's EPC ratings span E to B across 38 units on file. The latest certificate (September 2025) shows a D (score 61), on the cusp of jumping into the C band. When first surveyed in November 2010 the rating was E, the property has climbed 1 band since. Between certificates, lighting went from Very Poor to Good; while window efficiency dropped from Good to Poor. The recommended improvements would push it to C (score 74).
Held since May 2001 — that's 25 years off the open market, well above the local norm. Only one transfer is on record with HM Land Registry, suggesting it has stayed in the same hands for a long time. Today's modelled estimate of £296,000 sits 228.9% above the 2001 sale of £90,000. On a £-per-square-foot basis, the last sale (£226/sq ft) was about 42.9% below the postcode norm. At 37 m² it sits well below the postcode median (74 m² across 39 EPCs), making it one of the more compact homes locally.
No planning applications are recorded against 40a, Gipsy Hill, Lambeth, London, SE19 1NL. The full report also covers planning activity across the surrounding area.
Full planning data for 40a, Gipsy Hill, Lambeth, London, SE19 1NL
Every application and decision on this property and nearby, in full, in the report.
40a's estimated value is more than triple its earliest registered sale price (2001).
£296,000
Modelled from EPC, postcode comparables.
£90,000
Recorded with HM Land Registry.
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On floor area, 40a runs well behind the street norm.
Price per m²
£2,432
Street avg £5,481
Floor Area
37 m²
Street avg 76 m²
Habitable Rooms
2 rooms
Street avg 3 rooms
Rail-style transport is unusually close for this postcode.
Crime
5/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Central Hill — bus stop.

Daytime· 07:00 – 23:00
54.5dB

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Changes detected from historical EPC data
Windows upgraded, improving insulation
More low energy lighting installed
18 May 2001Most recent
£90,000
Median price across the last 5 sales in SE19 1NL: £365,000 (2025–2022).
Detailed EPC data
Full energy ratings, history and recommendations
Full planning history
Every application and decision on record
Comparable sales data
Plus transport, crime, schools and air quality
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CO₂ Emissions
2.0 t/year
Street avg 2.7 t/year
SE19 1TN
Closest school
0.2 km
Paxton Primary School. 57 schools nearby.
Night-time· 23:00 – 07:00
44.3dB