Flat B, 11 Winchester Street, Westminster, London, SW1V 4PA
About Flat B
Flat B is a mid-terrace house in Westminster, London, London (SW1V 4PA). It has a recorded floor area of 51 m² (around 549 sq ft) and construction records dating it to before 1900. The latest certificate (January 2016) shows a C (score 76), near the top of the C band. When first surveyed in May 2009 the rating was D, the property has climbed 1 band since. Between certificates, wall efficiency went from Very Poor to Good, window efficiency went from Very Poor to Average and lighting went from Average to Very Good. The latest certificate is from January 2016, so improvements made since then won't be reflected.
Across 2017–2018, sale prices on this property compounded at -96.1% per year. Today's modelled estimate of £583,000 sits 2199.8% above the 2018 sale of £25,350. On a £-per-square-foot basis, the last sale (£46/sq ft) was about 93% below the postcode norm. 8 years since the last transfer (May 2018).
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Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
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Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
Energy performance
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 18 Jan 2026
EPC Rating
Property Improvements
Changes detected from historical EPC data
Single glazing replaced with double or better glazing
Wall insulation improved
More low energy lighting installed
Planning history
Flat B has no planning applications on record.
The full report still covers planning activity across the surrounding area.
Sales history & valuation
Latest sale on Flat B was the lowest on Land Registry record across the postcode.
£583,000
Modelled from EPC, postcode comparables and a sale-price growth of -96.1% per year over 1 year.
£25,350
Growth on file: -96.1% per year over 1 year.
Sales timeline
21 May 2018Most recent
£25,350
-96.1%over 11 months6 June 2017
£650,000
Median price across the last 5 sales in SW1V 4PA: £565,000 (2025–2017).
Nearby sales in SW1V 4PA
Flat 3, 7 Winchester Street, London, SW1V 4PA
Sold May 2025
£565,000Flat E, 9 Winchester Street, London, SW1V 4PA
Sold Oct 2024
£440,000Flat B, 9 Winchester Street, London, SW1V 4PA
Sold Oct 2022
£530,000Flat 1, 7 Winchester Street, London, SW1V 4PA
Sold Mar 2022
£680,000Flat D, 11 Winchester Street, Westminster, London, SW1V 4PA
Sold Nov 2017
£997,500
Everything we know about Flat B, in one report
What it's really worth, what could be wrong, and the planning, sales and area data in full.
- Am I paying too much?
- Is something wrong with it?
- Is the agent's story true?
- Will it hold its value?
Versus other Winchester Street homes
On price per m², Flat B runs well behind the street norm.
Price per m²
£497
Street avg £10,681
Floor Area
51 m²
Street avg 49 m²
Habitable Rooms
3 rooms
Street avg 3 rooms
CO₂ Emissions
1.6 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
12/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Winchester Street — bus stop.
Closest school
0.2 km
St Gabriel's CofE Primary School. 70 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
59.3dB
Night-time· 23:00 – 07:00
49.2dB