Thornlea, Flat 2, Mount Park Avenue, Harrow, HA1 3JW
About Thornlea
Thornlea is a semi-detached house in Harrow (HA1 3JW). It has a recorded floor area of 163 m² (around 1755 sq ft), construction records dating it to before 1900 and council tax band G. The latest certificate (September 2019) shows a D (score 67), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since October 2013. Between certificates, window efficiency went from Poor to Average and lighting went from Very Poor to Very Good. The recommended improvements would lift it to B (score 82), a 2-band jump.
At 163 m² the property is well over the postcode median (115 m² across 11 EPCs), placing it in the larger end of the local stock. 5 planning records sit against the property, 3 approved, 0 refused. Past consents include tree works, meaningful when judging how the property has evolved.
Know exactly what you're buying at Thornlea
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Already flagged here
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
Energy performance
Recommended upgrades on file would lift this property by multiple EPC bands.
EPC Rating
Property Improvements
Changes detected from historical EPC data
Windows upgraded, improving insulation
More low energy lighting installed
Planning history
- Dec 2020Tree WorksTreesIn report
A1 Hornbeam (rear garden, flat 1): Raise lower crown to approximately 5m above ground level A1 Oak (flat 2 rear boundary): Remove major deadwood more than 50mm diameter and greater than 0.5m length A1 Judas tree (rear garden flat 2): Crown Reduce by removing approximately 0.5m all over A1 Holm Oak (rear garden flat 2): Trim back side growing towards adjacent elm to provide 1.5m clearance A1 Corsican pine (rear garden flat 2, rear bdry): Remove major deadwood more than 50mm diameter and greater than 0.5m length. Tip reduce back lowest 2 x overextended limbs growing over lawn area by removing approx 3-4m to being in line with previously pruned limb below A1 Corsican Pine (front garden of flat 2, behind garages): Remove majoe deadwood more than 50mm diameter and greater than 0.5m length
- Council
- 04
- Documents
- 7 docs on file
- Reference
- P/3222/20
- Aug 2014Tree WorksTreesIn report
5 X lime 1 x sycamore (rear of property): crown lift & thin as required holly: fell. Tree restricting growth of neigbouring trees. Magnolia (side): prune / thin as required
- Documents
- 3 docs on file
- Reference
- P/2227/14
We flagged 1 thing worth checking at Thornlea
Independent checks surfaced things a buyer would want to understand before offering. The report explains each one in full, with the underlying data and what to ask.
- Larger development activity nearby
30-day money-back guarantee
Sales history & valuation
Thornlea has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£1,049,000
Modelled from EPC, postcode comparables.
No sales recorded with HM Land Registry
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
Median price across the last 5 sales in HA1 3JW: £1,380,000 (2024–2011).
Nearby sales in HA1 3JW
Brooksfield, Mount Park Avenue, Harrow, HA1 3JW
Sold Mar 2024
£1,380,0002 Mount Lodge, Mount Park Avenue, Harrow, HA1 3JW
Sold Nov 2021
£1,250,000Belmont, Mount Park Avenue, Harrow, HA1 3JW
Sold Aug 2020
£1,800,000Thornlea, Flat 3, Mount Park Avenue, Harrow, HA1 3JW
Sold Nov 2012
£570,000Kelburn House, Mount Park Avenue, Harrow, HA1 3JW
Sold Feb 2011
£1,390,000
Everything we know about Thornlea, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
- Larger development activity nearby
Versus other Mount Park Avenue homes
On epc rating, Thornlea stands well clear of the street.
EPC Rating
67 (D)
Street avg 58 (D)
Floor Area
163 m²
Street avg 236 m²
CO₂ Emissions
5.6 t/year
Street avg 10.6 t/year
Habitable Rooms
7 rooms
Street avg 10 rooms
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
28/mo
Steady year-on-year across the wider district.
Nearest stop
0.2 km
Roxeth Hill — bus stop.
Closest school
0.1 km
St Dominic's Sixth Form College. 28 schools nearby.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.
Road noise across the postcode
Daytime· 07:00 – 23:00
48.7dB
Night-time· 23:00 – 07:00
40.5dB