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Get started9 Brook Street is a semi-detached house in Erith (DA8 1JJ). It has a recorded floor area of 50 m² (around 538 sq ft), construction records dating it to 1930-1949 and council tax band D. The latest certificate (February 2018) shows a D (score 60), on the cusp of jumping into the C band. When first surveyed in March 2015 the rating was F, the property has climbed 2 bands since. Between certificates, wall efficiency went from Very Poor to Very Good, roof efficiency went from Very Poor to Very Good and window efficiency went from Poor to Very Good; while hot-water efficiency dropped from Average to Very Poor and main heating dropped from Good to Very Poor. The recommended improvements would lift it to A (score 109), a 3-band jump. Main heating runs on electricity: electricity, unspecified tariff.
Today's modelled estimate of £272,000 is 21.8% below the 2015 sale of £348,000, below the original sale price, which typically signals condition or completion-status changes worth verifying. On a £-per-square-foot basis, the last sale (£647/sq ft) was about 256.2% above the typical sold price in the postcode. At 50 m² it sits well below the postcode median (81 m² across 27 EPCs), making it one of the more compact homes locally. 4 planning records sit against the property, 3 approved, 1 refused. Past consents include HMO conversion and an extension, meaningful when judging how the property has evolved. Last sold in September 2015, so it's been off the market for around 11 years.
Recommended upgrades on file would lift this property by multiple EPC bands.
Lawful Development Certificate (Existing) for the continued use of the property as a six bedroom, six person House of Multiple Occupation (HMO)
9 Brook Street valuation sits well clear of the typical sold price in this postcode.
£272,000
Modelled from EPC, postcode comparables.
£348,000
Recorded with HM Land Registry.
Floor Area for 9 Brook Street lags the street by a wide margin.
Price per m²
£6,960
Street avg £5,198
Floor Area
50 m²
Street avg 82 m²
CO₂ Emissions
2.3 t/year
Rail-style transport is unusually close for this postcode.
Crime
9/mo
Steady year-on-year across the wider district.
Nearest stop
0.1 km
Barnehurst Avenue — bus stop.

Daytime· 07:00 – 23:00
51.8dB

Changes detected from historical EPC data
Heating system changed
Changed to a more efficient fuel source
Hot water system changed
Windows upgraded, improving insulation
Cavity wall insulation installed
Loft insulation installed or upgraded to 250mm+
Floor insulation added or improved
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
Details of conditions 6 (vehicle parking) and 8 (refuse storage) pursuant to planning permission 16/01182/FUL for the single storey side extension to form a one bed self contained unit of accommodation and associated parking
2 more applications for this property
Join to see all planning history.
30 September 2015Most recent
£348,000
Median price across the last 5 sales in DA8 1JJ: £325,000 (2025–2020).
Street avg 3.3 t/year
Years Held
11 years
Street avg 10 years
Closest school
0.3 km
Northumberland Heath Primary School. 42 schools nearby.
Night-time· 23:00 – 07:00
42.1dB
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