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Get started9 Derby Avenue, Harrow, HA3 5JU
2 planning records
About 9 Derby Avenue
A plain-English summary derived from public records, EPC certificates, sold prices and local data.
9 Derby Avenue is a three-bedroom semi-detached house in Harrow (HA3 5JU). It has a recorded floor area of 134 m² (around 1442 sq ft), construction records dating it to 1900-1929 and council tax band D. Tenure is freehold. The latest certificate (October 2025) shows a C (score 70). When first surveyed in December 2013 the rating was D, the property has climbed 1 band since. Between certificates, lighting went from Very Poor to Good; while roof efficiency dropped from Good to Average and window efficiency dropped from Good to Average. The recommended improvements would push it to B (score 81).
At 134 m² the property is well over the postcode median (56 m² across 20 EPCs), placing it in the larger end of the local stock. Its energy rating outperforms most of the postcode (better than 75% of similar EPCs). Today's modelled estimate of £668,000 sits 64.9% above the 2015 sale of £405,000. 2 planning records sit against the property, 1 approved, 0 refused. Past consents include an extension, meaningful when judging how the property has evolved. Last changed hands 11 years ago, in September 2015.
What this property has
Pulled from EPC certificates, claim submissions and our property model. Empty categories are hidden — we only show what's known.
Inside
- Bedrooms3
- Bathrooms1
- Dining roomYes
- CloakroomYes
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 5)
Oct 2025
EPC Rating
A
B
C
C70
D
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Average
CO2 Emissions
4.0 t/year
Occupancy
Owner Occupied
Planning history
Applications and permits filed against 9 Derby Avenue, Harrow, HA3 5JU, sourced from the PlanIt planning register.
- Apr 2016ExtensionOutlineGrant
Extension: Single storey · Rear of property
Certificate of lawful development (proposed): single storey rear extension; insertion of window in existing side elevation; alterations to roof to form end gable and rear dormer insertion of two rooflights in front roofslope and window in side. (Demolitio
Sales history & valuation
Recorded transactions, our model's current estimate, and a quick read on what neighbouring properties have sold for.
9 Derby Avenue valuation sits well clear of the typical sold price in this postcode.
Current estimate
See how we calculated this£668,000
Modelled from EPC, postcode comparables.
Last sold (2015)
£405,000
Recorded with HM Land Registry.
Sales timeline
Full property reportLaunch offer · 33% off
The complete analysis of 9 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 8 similar houses on this street, drawn from the latest EPC and Land Registry data.
EPC Rating for 9 Derby Avenue runs comfortably ahead of the street norm.
Price per m²
£3,022
Street avg £4,869
Floor Area
134 m²
Street avg 85 m²
Habitable Rooms
6 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 9 Derby Avenue, Harrow, HA3 5JU. Each answer is also embedded as structured data for search engines.