1 Carlyon Avenue, Harrow, HA2 8SU
About 1 Carlyon Avenue
1 Carlyon Avenue is a semi-detached house in Harrow (HA2 8SU). It has a recorded floor area of 65 m² (around 700 sq ft), construction records dating it to 1900-1929 and council tax band D. The latest certificate (June 2021) shows a D (score 61), on the cusp of jumping into the C band. The rating has held steady at D across 2 certificates since February 2009. Between certificates, lighting went from Average to Good; while window efficiency dropped from Good to Average. The recommended improvements would lift it to B (score 86), a 2-band jump.
One planning record on file: an extension approved in 2010. Past consents include an extension, meaningful when judging how the property has evolved. Across 2009–2021, sale prices on this property compounded at 5.5% per year. On a £-per-square-foot basis, the last sale (£679/sq ft) was about 127.7% above the typical sold price in the postcode. At 65 m² it's 19.8% smaller than the typical home in the postcode (81 m² median across 5 EPCs). Last sale on file: £475,000 in September 2021. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Know exactly what you're buying at 1 Carlyon Avenue
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
Planning history
- May 2010ExtensionOutlineIn report
Extension: Rear of property
Certificate of lawful proposed development: demolition of part of existing rear extension; new single storey rear infill extension
- Documents
- 11 docs on file
- Reference
- P/2896/09
We flagged 2 things worth checking at 1 Carlyon Avenue
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
1 Carlyon Avenue changed hands twice within eighteen months — unusual for the area.
£477,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.5% per year over 12 years.
£475,000
Growth on file: 5.5% per year over 12 years.
Sales timeline
2 September 2021Most recent
£475,000
29 June 2021
£475,000
+90.0%over 11 years29 September 2009
£250,000
Median price across the last 5 sales in HA2 8SU: £340,000 (2021–2003).
Everything we know about 1 Carlyon Avenue, 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 Carlyon Avenue homes
1 Carlyon Avenue outperforms the street on price per m² by a wide margin.
Price per m²
£7,308
Street avg £3,739
Floor Area
65 m²
Street avg 97 m²
Habitable Rooms
3 rooms
Street avg 5 rooms
CO₂ Emissions
3.3 t/year
Street avg 3.7 t/year
Similar properties nearby
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
6/mo
Rising year-on-year across the wider district.
Nearest stop
0.5 km
Danemead Grove — bus stop.
Closest school
0.4 km
Earlsmead Primary School. 40 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
52.1dB

Night-time· 23:00 – 07:00
42.4dB