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Get started12 Ashwater Road is a three-bedroom semi-detached house in Lewisham, London, London (SE12 0LB). It has a recorded floor area of 90 m² (around 969 sq ft), construction records dating it to 1900-1929 and council tax band D. The latest certificate (September 2020) shows a D (score 63), on the cusp of jumping into the C band. When first surveyed in January 2014 the rating was E, the property has climbed 1 band since. Between certificates, lighting went from Very Poor to Very Good; while window efficiency dropped from Good to Average. The recommended improvements would lift it to B (score 85), a 2-band jump.
Sale prices here have outpaced London HPI: 6.5% per year against 0% for the wider region. Today's modelled estimate of £661,000 is 16.8% above the 2021 sale price. On a £-per-square-foot basis, the last sale (£584/sq ft) was about 35.9% above the typical sold price in the postcode. One planning record on file: a loft conversion approved in 2024. Past consents include a loft conversion, meaningful when judging how the property has evolved. Sold January 2021 for £566,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Recommended upgrades on file would lift this property by multiple EPC bands.
Application for a Lawful Development Certificate (proposed) submitted under Section 192 of the Town & Country Planning Act 1990 (as amended) and Class B and C of Schedule 2, Part 1, of the Town and Country Planning (General Permitted Development) (England) Order 2015 (as amended) for the hip-to-gable loft conversion incorporating the construction of a rear dormer, three rooflights to front roofslope and removal of outrigger chimney stack at 12 Ashwater Road, SE12.
Sale price has at least doubled since 2003.
£661,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.5% per year over 17 years.
£566,000
Growth on file: 6.5% per year over 17 years.
EPC Rating for 12 Ashwater Road runs comfortably ahead of the street norm.
Price per m²
£6,289
Street avg £5,247
Floor Area
90 m²
Street avg 96 m²
Habitable Rooms
5 rooms
Rail-style transport is unusually close for this postcode.
Crime
8/mo
Rising year-on-year across the wider district.
Nearest stop
0.2 km
Heather Road (SE12) — bus stop.

Daytime· 07:00 – 23:00
50.2dB

Changes detected from historical EPC data
Heating controls upgraded for better temperature management
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
29 January 2021Most recent
£566,000
+126.4%over 17 years16 January 2004
£250,000
+31.6%11 September 2003
£190,000
Median price across the last 5 sales in SE12 0LB: £565,000 (2025–2021).
Street avg 5 rooms
CO₂ Emissions
3.8 t/year
Street avg 5.2 t/year
SE12 0NT
Closest school
0.3 km
Cooper's Lane Primary School. 41 schools nearby.
Night-time· 23:00 – 07:00
40.4dB
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