3 Blake House, Cottage Close, Harrow, HA2 0HG
About 3 Blake House
3 Blake House is an end-of-terrace house in Harrow (HA2 0HG). It has a recorded floor area of 47 m² (around 506 sq ft), construction records dating it to 2003-2006 and council tax band D. The latest certificate (June 2020) shows a C (score 77), near the top of the C band. Earlier certificates rated it B (March 2010); the latest reading is one band lower. Between certificates, hot-water efficiency dropped from Very Good to Good and main heating dropped from Very Good to Good.
At 47 m² it sits well below the postcode median (74 m² across 40 EPCs), making it one of the more compact homes locally. Across 2005–2023, sale prices on this property compounded at 1.5% per year. On a £-per-square-foot basis, the last sale (£550/sq ft) was about 38% above the typical sold price in the postcode. Sold January 2023 for £278,000.
Know exactly what you're buying at 3 Blake House
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
3 Blake House's carbon output is low for the local stock.
EPC Rating
Planning history
3 Blake House has no planning applications on record.
Notable planning nearby
5applications of note in the surrounding area
We flagged 3 things worth checking at 3 Blake House
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
- Recent ownership pattern worth a look
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Sales history & valuation
3 Blake House changed hands twice within eighteen months — unusual for the area.
£289,000
Modelled from EPC, postcode comparables and a sale-price growth of 1.5% per year over 17 years.
£278,000
Growth on file: 1.5% per year over 17 years.
Sales timeline
12 January 2023Most recent
£278,000
+26.4%31 July 2022
£220,000
+2.3%over 16 years25 November 2005
£215,000
Median price across the last 5 sales in HA2 0HG: £360,000 (2025–2022).
Nearby sales in HA2 0HG
2 Siddons House, Cottage Close, Harrow, HA2 0HG
Sold Feb 2025
£435,0007 Blake House, Cottage Close, Harrow, HA2 0HG
Sold Feb 2023
£360,0005 Siddons House, Cottage Close, Harrow, HA2 0HG
Sold Sept 2022
£275,0004 Siddons House, Cottage Close, Harrow, HA2 0HG
Sold Jul 2022
£305,00014 Langton House, Cottage Close, Harrow, HA2 0HG
Sold Mar 2022
£415,000
Everything we know about 3 Blake House, 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
- Recent ownership pattern worth a look

Versus other Cottage Close homes
Years Held for 3 Blake House lags the street by a wide margin.
Price per m²
£5,915
Street avg £4,638
Floor Area
47 m²
Street avg 72 m²
Habitable Rooms
2 rooms
Street avg 3 rooms
CO₂ Emissions
1.2 t/year
Street avg 1.9 t/year
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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
0.1 km
Roxeth Hill — bus stop.
Closest school
0.1 km
St Dominic's Sixth Form College. 29 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
48.8dB

Night-time· 23:00 – 07:00
40.7dB