4b is a one-bedroom semi-detached house in Southwark, London, London (SE19 1HA). It has a recorded floor area of 45 m² (around 484 sq ft), construction records dating it to 1930-1949 and council tax band B. At 45 m² this is the 6th smallest of 37 units on EPC record in the building, where floor areas span 33–164 m². The building's EPC ratings span E to C, with this unit at the top. The latest certificate (May 2025) shows a C (score 77), near the top of the C band. When first surveyed in September 2013 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Poor, window efficiency went from Average to Good and lighting went from Very Poor to Very Good. The recommended improvements would push it to B (score 81).
Sale prices here have outpaced London HPI: 10.2% per year against 0% for the wider region. Today's modelled estimate of £300,000 sits 57.9% above the 2013 sale of £189,950. On a £-per-square-foot basis, the last sale (£392/sq ft) was about 55.7% above the typical sold price in the postcode. At 45 m² it sits well below the postcode median (84 m² across 36 EPCs), making it one of the more compact homes locally. 1 bedrooms is on the smaller side for this postcode, where 3 is the typical count. Last changed hands 13 years ago, in October 2013.
4b's carbon output is low for the local stock.
No planning applications are recorded against 4b, Colby Road, Southwark, London, SE19 1HA. The full report also covers planning activity across the surrounding area.
Full planning data for 4b, Colby Road, Southwark, London, SE19 1HA
Every application and decision on this property and nearby, in full, in the report.
Sale price has grown by over 3x since 1999.
£300,000
Modelled from EPC, postcode comparables and a sale-price growth of 10.2% per year over 14 years.
£189,950
Growth on file: 10.2% per year over 14 years.
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4b outperforms the street on epc rating by a wide margin.
Price per m²
£4,221
Street avg £4,454
Floor Area
45 m²
Street avg 67 m²
Habitable Rooms
3 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
Gipsy Hill Station — bus stop.

Daytime· 07:00 – 23:00
56.4dB

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Changes detected from historical EPC data
Heating controls changed
Window efficiency improved
Wall insulation improved
More low energy lighting installed
Heating controls upgraded for better temperature management
31 October 2013Most recent
£189,950
+287.7%over 13 years3 December 1999
£49,000
Median price across the last 5 sales in SE19 1HA: £765,000 (2025–2024).
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
1.2 t/year
Street avg 3.1 t/year
SE19 1JP
Closest school
0.3 km
Paxton Primary School. 62 schools nearby.
Night-time· 23:00 – 07:00
46.1dB