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11 planning records
About 57 Northwick Avenue
A plain-English summary derived from public records, EPC certificates, sold prices and local data.
57 Northwick Avenue is a detached house in Harrow (HA3 0AU). It has a recorded floor area of 135 m² (around 1453 sq ft), construction records dating it to 1950-1966 and council tax band F. The latest certificate (February 2020) shows a D (score 67), on the cusp of jumping into the C band. The recommended improvements would push it to C (score 80).
11 planning records sit against the property, 8 approved, 3 refused. Past consents include an extension and a garage conversion, meaningful when judging how the property has evolved. Today's modelled estimate of £852,000 is 12.8% above the 2020 sale price. Sold November 2020 for £755,000.
Energy performance
Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.
EPC Rating
A
B
C
D
D67
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Average
CO2 Emissions
4.8 t/year
Occupancy
Owner Occupied
Planning history
Applications and permits filed against 57 Northwick Avenue, Harrow, HA3 0AU, sourced from the PlanIt planning register.
A a loft conversion application was refused at 57 Northwick Avenue in 2023.
- Mar 2024ExtensionFullGranted
Extension: Single storey · Rear of property
Proposed conversion of garage into habitable room and replacement of garage door with window, single storey rear extension with 3x new windows to the ground floor side elevation, rear dormer window with Juliet balcony and 2x front rooflights, replacement of front door to accommodate the conversion of a single dwelling into 4x self-contained flats with divided amenity space and associated refuse and bike storage .
Sales history & valuation
Recorded transactions, our model's current estimate, and a quick read on what neighbouring properties have sold for.
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
Current estimate
See how we calculated this£852,000
Modelled from EPC, postcode comparables.
Last sold (2020)
£755,000
Recorded with HM Land Registry.
Sales timeline
Full property reportLaunch offer · 33% off
The complete analysis of 57 Northwick Avenue, Harrow, HA3 0AU
Everything we know about this property, compiled into one in-depth, downloadable report.
Detailed AI analysis
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 Park Station — tram stop.
Road noise across the postcode
Modelled day and night-time noise levels around HA3 0AU from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime· 07:00 – 23:00
49.8dB
Everything within walking distance
Schools, transport stops and scenic spots near this property — 70 points of interest in total.
Common questions
The questions buyers, sellers and homeowners most often ask about 57 Northwick Avenue, Harrow, HA3 0AU. Each answer is also embedded as structured data for search engines.