454a, High Road, Wembley, HA9 7AY
About 454a
454a is a detached house in Wembley (HA9 7AY). It has a recorded floor area of 75 m² (around 807 sq ft), construction records dating it to 2007 onwards and council tax band C. At 75 m² this is the largest unit on EPC record across 454a (13–75 m²). The building's EPC ratings span C to B, with this unit at the bottom. On EPC score it ranks last in the building (74 versus a best of 85). The latest certificate (September 2018) shows a C (score 74). When first surveyed in September 2013 the rating was G, the property has climbed 4 bands since. Between certificates, wall efficiency went from Very Poor to Very Good, roof efficiency went from Very Poor to Good and window efficiency went from Very Poor to Very Good. Main heating runs on electricity: electricity, unspecified tariff.
Today's modelled estimate of £325,000 is 72.9% below the 2015 sale of £1,200,000, running counter to the wider postcode trend, which makes the EPC and condition history especially worth a look. On a £-per-square-foot basis, the last sale (£1,486/sq ft) was about 214.7% above the typical sold price in the postcode. At 75 m² the property is well over the postcode median (55 m² across 26 EPCs), placing it in the larger end of the local stock. One planning record on file: an extension approved in 2017. Past consents include an extension, a conservatory and subdivision, meaningful when judging how the property has evolved. 11 years since the last transfer (May 2015).
Know exactly what you're buying at 454a
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
EPC Rating
Property Improvements
Changes detected from historical EPC data
Hot water system changed
Single glazing replaced with double or better glazing
External or internal wall insulation added
Roof insulation improved
More low energy lighting installed
Heating controls upgraded for better temperature management
Hot water system changed
High performance glazing installed
Wall insulation upgraded
Planning history
Council records show a subdivision application — the property's legal arrangement has been altered.
- Jan 2017ConservatoryFullIn report
Extension: Side and rear of property
First floor rear and side extension, second floor rear extension to provide a conservatory with associated roof terraces and conversion of existing HMO's occupying first and second floor into 2 self-contained flats (1 x 3bed and 1 x 2bed) to also include cycle parking and bin stores to the rear
- Agent
- GA&A Design
ExtensionSubdivision- Documents
- 10 docs on file
- Reference
- 16/4693
We flagged 2 things worth checking at 454a
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.
- Signs of HMO activity in the area
- Larger development activity nearby
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Sales history & valuation
£325,000
Modelled from EPC, postcode comparables.
£1,200,000
Recorded with HM Land Registry.
Sales timeline
11 May 2015Most recent
£1,200,000
Median price across the last 3 sales in HA9 7AY: £310,000 (2020–2008).
Everything we know about 454a, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
- Signs of HMO activity in the area
- Larger development activity nearby

Versus other High Road homes
On floor area, 454a stands well clear of the street.
Price per m²
£16,000
Street avg £8,141
Floor Area
75 m²
Street avg 54 m²
CO₂ Emissions
1.8 t/year
Street avg 2.6 t/year
Years Held
11 years
Street avg 10 years
Similar properties nearby
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
15/mo
Rising year-on-year across the wider district.
Nearest stop
0.0 km
Park Lane Wembley — bus stop.
Closest school
0.2 km
Park Lane Primary School. 36 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
52.8dB

Night-time· 23:00 – 07:00
44.4dB