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3 planning records
About 20 Northwick Avenue
A plain-English summary derived from public records, EPC certificates, sold prices and local data.
20 Northwick Avenue is a four-bedroom semi-detached house in Harrow (HA3 0AB). It has a recorded floor area of 210 m² (around 2260 sq ft), construction records dating it to 1930-1949 and council tax band F. The latest certificate (March 2019) shows a C (score 76), near the top of the C band. When first surveyed in November 2016 the rating was E, the property has climbed 2 bands since. Between certificates, wall efficiency went from Very Poor to Good, roof efficiency went from Average to Good and window efficiency went from Poor to Good. The recommended improvements would push it to B (score 85).
At 210 m² the property is well over the postcode median (117 m² across 27 EPCs), placing it in the larger end of the local stock. 3 planning records sit against the property, 2 approved, 1 refused. Past consents include an extension and a loft conversion, meaningful when judging how the property has evolved. On the market in December 2016 and unlisted since — roughly 9 years. Today's modelled estimate of £892,000 is 48.7% above the 2016 sale price.
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
- Bedrooms4
- Bathrooms2
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 2019
EPC Rating
A
B
C
C76
D
E
F
G
Main Heating
Electric & Gas
Main Fuel
Gas
Hot Water
Good
Windows
Good
CO2 Emissions
5.0 t/year
Occupancy
Rented
Planning history
Applications and permits filed against 20 Northwick Avenue, Harrow, HA3 0AB, sourced from the PlanIt planning register.
Planning history includes both a loft conversion and an extension — the classic family-home expansion.
- Aug 2018RenovationFullRefused
Proposed widening of existing dropped kerb to vehicle crossover
Sales history & valuation
Recorded transactions, our model's current estimate, and a quick read on what neighbouring properties have sold for.
20 Northwick Avenue valuation sits well clear of the typical sold price in this postcode.
Current estimate
See how we calculated this£892,000
Modelled from EPC, postcode comparables.
Last sold (2016)
£600,000
Recorded with HM Land Registry.
Sales timeline
Full property reportLaunch offer · 33% off
The complete analysis of 20 Northwick Avenue, Harrow, HA3 0AB
Everything we know about this property, compiled into one in-depth, downloadable report.
Detailed AI analysis
Versus other Northwick Avenue homes
Four headline reads against 24 similar houses on this street, drawn from the latest EPC and Land Registry data.
On floor area, 20 Northwick Avenue stands well clear of the street.
Price per m²
£2,857
Street avg £3,503
Floor Area
210 m²
Street avg 148 m²
Habitable Rooms
7 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
0.1 km
Northwick Avenue — bus stop.
Road noise across the postcode
Modelled day and night-time noise levels around HA3 0AB from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime· 07:00 – 23:00
52.0dB
Everything within walking distance
Schools, transport stops and scenic spots near this property — 69 points of interest in total.
Common questions
The questions buyers, sellers and homeowners most often ask about 20 Northwick Avenue, Harrow, HA3 0AB. Each answer is also embedded as structured data for search engines.