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Get started178a is a mid-terrace house in Harrow (HA3 8BL). It has a recorded floor area of 46 m² (around 495 sq ft), construction records dating it to 1930-1949 and council tax band C. At 46 m² this is the 3rd smallest of 21 units on EPC record in the building, where floor areas span 35–88 m². The building's EPC ratings span E to C, with this unit at the top. The latest certificate (September 2025) shows a C (score 71). When first surveyed in August 2010 the rating was D, the property has climbed 1 band since. Between certificates, hot-water efficiency went from Poor to Good and main heating went from Poor to Good. Main heating runs on electricity.
Today's modelled estimate of £219,000 sits 4280% above the 2022 sale of £5,000. On a £-per-square-foot basis, the last sale (£10/sq ft) was about 97.2% below the postcode norm. Last sale on file: £5,000 in June 2022. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend. One historical planning record sits against the property in 2019.
178a's carbon output is low for the local stock.
Prior Approval for Installation of 20m high telecommunications pole supporting six antennas; Equipment cabinets and associated works
Latest sale on 178a was the lowest on Land Registry record across the postcode.
£219,000
Modelled from EPC, postcode comparables.
£5,000
Recorded with HM Land Registry.
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Detailed AI analysis
178a is notably below the street on price per m².
Price per m²
£109
Street avg £4,106
Floor Area
46 m²
Street avg 57 m²
Habitable Rooms
1 rooms
Street avg 2 rooms
Rail-style transport is unusually close for this postcode.
Crime
5/mo
Steady year-on-year across the wider district.
Nearest stop
0.0 km
Upton Gardens — bus stop.

Daytime· 07:00 – 23:00
50.4dB

Changes detected from historical EPC data
Hot water efficiency improved
Low energy lighting percentage decreased
Heating system changed
Window efficiency improved
More low energy lighting installed
Heating system upgraded to a more efficient system
High performance glazing installed
Hot water efficiency improved
Are we missing something? Tell us about home improvements to help adjust your valuation.
24 June 2022Most recent
£5,000
Median price across the last 5 sales in HA3 8BL: £330,000 (2023–2008).
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Detailed EPC data
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Related properties
Comparable homes and street-level pricing
Full planning history
Every application and decision on record
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CO₂ Emissions
0.8 t/year
Street avg 2.7 t/year
Closest school
0.7 km
St Gregory's Catholic Science College. 46 schools nearby.
Night-time· 23:00 – 07:00
40.3dB