Flat 1 is a mid-terrace house in London (SW3 5TX). It has a recorded floor area of 106 m² (around 1141 sq ft) and construction records dating it to before 1900. The latest certificate (September 2022) shows a C (score 69), just inside the C band. When first surveyed in March 2011 the rating was D, the property has climbed 1 band since. Between certificates, window efficiency went from Poor to Good and lighting went from Average to Very Good; while roof efficiency dropped from Poor to Very Poor. The recommended improvements would push it to B (score 82).
Untraded for 26 years, with the last transfer in June 2000. Sale prices here have outpaced London HPI: 25.2% per year against 0% for the wider region. Today's modelled estimate of £1,386,000 sits 180% above the 2000 sale of £495,000. On a £-per-square-foot basis, the last sale (£434/sq ft) was about 34% below the postcode norm. At 106 m² the property is well over the postcode median (51 m² across 12 EPCs), placing it in the larger end of the local stock. One historical planning record sits against the property in 2024.
Before you offer, see what the listing won't tell you, the true value, the red flags and the full history.
Already flagged here
Launch offer · save £5
Alterations to existing entrance door and to marginally widen existing fire escape staircase to rear of unit.
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.
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Flat 1's modelled value sits at over four times its earliest registered sale price (1997).
£1,386,000
Modelled from EPC, postcode comparables and a sale-price growth of 25.2% per year over 2 years.
£495,000
Growth on file: 25.2% per year over 2 years.
What it's really worth, what could be wrong, and the planning, sales and area data in full.
What we flagged
Flat 1 outperforms the street on floor area by a wide margin.
Price per m²
£4,670
Street avg £9,750
Floor Area
106 m²
Street avg 69 m²
Habitable Rooms
4 rooms
Reported crime in the wider district is trending notably upward year-on-year.
Crime
9/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Chelsea Old Town Hall — bus stop.

Daytime· 07:00 – 23:00
57.3dB

Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
More low energy lighting installed
2 June 2000Most recent
£495,000
+73.7%over 2 years19 December 1997
£285,000
Median price across the last 5 sales in SW3 5TX: £490,000 (2017–2010).

Street avg 3 rooms
CO₂ Emissions
3.4 t/year
Street avg 2.5 t/year
SW3 5DQ
Closest school
0.3 km
Christ Church CofE Primary School. 59 schools nearby.
Go deeper on the local area
The full report breaks down crime, transport links, schools and air quality in depth.
Night-time· 23:00 – 07:00
47.8dB