12 Langton House, Cottage Close, Harrow, HA2 0HG
About 12 Langton House
12 Langton House is a one-bedroom detached house in Harrow (HA2 0HG). It has a recorded floor area of 72 m² (around 777 sq ft), construction records dating it to 2003-2006 and council tax band F. There is a swimming pool on the plot, uncommon for the area. The property has an EV charger on record, all of which lower running costs and tend to lift resale appeal. At 72 m² this is the 3rd smallest of 15 units on EPC record in the building, where floor areas span 55–116 m². The building's EPC ratings span D to B across 15 units on file. The latest certificate (August 2009) shows a C (score 80), near the top of the C band. The rating has held steady at C across 2 certificates since May 2009. Between certificates, lighting dropped from Good to Very Poor. The recommended improvements would push it to B (score 82). The latest certificate is from August 2009, so improvements made since then won't be reflected.
Held since December 2009 — that's 16 years off the open market, well above the local norm. That sale fell during the post-crash dip, which often skews comparisons against later neighbouring sales. Across 2005–2009, sale prices on this property compounded at -6.7% per year. Today's modelled estimate of £353,000 is 33.2% above the 2009 sale price.
Know exactly what you're buying at 12 Langton 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
What this property has
Inside
- Bedrooms1
- Bathrooms1
Outside
- Communal gardenYes
- ParkingUnderground
- Swimming poolYes
Building
- EV chargerYes
- ConciergeYes
Energy performance
12 Langton House's EPC is over a decade old — improvements since won't be reflected.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 29 Aug 2019
EPC Rating
Property Improvements
Changes detected from historical EPC data
Glazing upgraded to newer, more efficient type
External or internal wall insulation added
Floor insulation added or improved
Low energy lighting percentage decreased
Planning history
12 Langton House has no planning applications on record.
Notable planning nearby
5applications of note in the surrounding area
We flagged 2 things worth checking at 12 Langton 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
30-day money-back guarantee
Sales history & valuation
12 Langton House saw 3 transfers in just over a decade — high turnover for the postcode.
£353,000
Modelled from EPC, postcode comparables and a sale-price growth of -6.7% per year over 4 years.
£265,000
Growth on file: -6.7% per year over 4 years.
Sales timeline
15 December 2009Most recent
£265,000
-8.8%over 3 years22 August 2006
£290,500
-18.6%over 12 months1 September 2005
£357,000
Median price across the last 5 sales in HA2 0HG: £278,000 (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
£360,0003 Blake House, Cottage Close, Harrow, HA2 0HG
Sold Jan 2023
£278,0005 Siddons House, Cottage Close, Harrow, HA2 0HG
Sold Sept 2022
£275,0004 Siddons House, Cottage Close, Harrow, HA2 0HG
Sold Jul 2022
£305,000
Everything we know about 12 Langton 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

Versus other Cottage Close homes
On price per m², 12 Langton House runs well behind the street norm.
Price per m²
£3,670
Street avg £4,696
Floor Area
72 m²
Street avg 72 m²
Habitable Rooms
3 rooms
Street avg 3 rooms
CO₂ Emissions
1.9 t/year
Street avg 1.9 t/year
Similar properties nearby
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1 Athena Close, Byron Hill Road
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1 Abbots Drive
HA2 0RE
1 Crown Street
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1 Blake House, Cottage Close
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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