Are you a property professional?Get qualified leads from motivated homeowners.
Get started12a, Derby Avenue, Harrow, HA3 5JU
About 12a
A plain-English summary derived from public records, EPC certificates, sold prices and local data.
12a is a semi-detached house in Harrow (HA3 5JU). It has a recorded floor area of 43 m² (around 463 sq ft), construction records dating it to 1930-1949 and council tax band C. The latest certificate (March 2024) shows a D (score 58), a step below the typical UK home. The rating has held steady at D across 2 certificates since April 2012. Between certificates, wall efficiency dropped from Poor to Very Poor and roof efficiency dropped from Average to Very Poor.
It hasn't traded since June 1997, a hold of 29 years that's notably long for the area. 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 £235,000 sits 487.5% above the 1997 sale of £40,000. On a £-per-square-foot basis, the last sale (£86/sq ft) was about 69.2% below the postcode norm. At 43 m² it's 25.9% smaller than the typical home in the postcode (58 m² median across 20 EPCs).
Energy performance
Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.
Current Certificate(1 of 2)
Mar 2024
EPC Rating
A
B
C
D
D58
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Average
CO2 Emissions
2.8 t/year
Occupancy
Rented
Sales history & valuation
Recorded transactions, our model's current estimate, and a quick read on what neighbouring properties have sold for.
Latest sale on 12a was the lowest on Land Registry record across the postcode.
Current estimate
See how we calculated this£235,000
Modelled from EPC, postcode comparables.
Last sold (1997)
£40,000
Recorded with HM Land Registry.
Sales timeline
Full property reportLaunch offer · 33% off
The complete analysis of 12a, Derby Avenue, Harrow, HA3 5JU
Everything we know about this property, compiled into one in-depth, downloadable report.
Detailed AI analysis
Versus other Derby Avenue homes
Four headline reads against 11 similar flats on this street, drawn from the latest EPC and Land Registry data.
On price per m², 12a runs well behind the street norm.
Price per m²
£930
Street avg £4,428
Floor Area
43 m²
Street avg 47 m²
Habitable Rooms
2 rooms
Street avg 2 rooms
Similar properties nearby
A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
The neighbourhood at a glance
A condensed read of the local area. Each tile links through to the full breakdown on the Harrow district page.
Rail-style transport is unusually close for this postcode.
Crime
5/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Stanhope Avenue — bus stop.
Road noise across the postcode
Modelled day and night-time noise levels around HA3 5JU from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime· 07:00 – 23:00
52.3dB
Everything within walking distance
Schools, transport stops and scenic spots near this property — 60 points of interest in total.
Common questions
The questions buyers, sellers and homeowners most often ask about 12a, Derby Avenue, Harrow, HA3 5JU. Each answer is also embedded as structured data for search engines.