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Get startedFirst Floor Flat is a mid-terrace house in London (SW3 5NR). It has a recorded floor area of 35 m² (around 377 sq ft) and construction records dating it to before 1900. The latest certificate (July 2019) shows a D (score 64), on the cusp of jumping into the C band. The rating has held steady at D across 4 certificates since June 2010. Between certificates, lighting went from Very Poor to Good; while window efficiency dropped from Good to Average. The recommended improvements would push it to C (score 71).
Sale prices here have lagged London HPI: -3.5% per year against 0% for the wider region. On a £-per-square-foot basis, the last sale (£1,699/sq ft) was about 91.8% above the typical sold price in the postcode. At 35 m² it sits well below the postcode median (74 m² across 30 EPCs), making it one of the more compact homes locally. Last sale on file: £640,000 in October 2020.
The latest sale landed in the post-pandemic price surge — useful context when reading the figure.
£643,000
Modelled from EPC, postcode comparables and a sale-price growth of -3.5% per year over 7 years.
£640,000
Growth on file: -3.5% per year over 7 years.
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On floor area, First Floor Flat runs well behind the street norm.
Price per m²
£18,286
Street avg £13,700
Floor Area
35 m²
Street avg 75 m²
Habitable Rooms
2 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
Carlyle Square /Chelsea — bus stop.

Daytime· 07:00 – 23:00
58.4dB

Changes detected from historical EPC data
Hot water efficiency improved
Heating controls changed
Hot water efficiency decreased
Changed to a more efficient fuel source
Single glazing replaced with double or better glazing
More low energy lighting installed
Are we missing something? Tell us about home improvements to help adjust your valuation.
2 October 2020Most recent
£640,000
-21.0%over 6 years6 March 2014
£810,000
Median price across the last 5 sales in SW3 5NR: £442,540 (2025–2023).
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Street avg 3 rooms
CO₂ Emissions
2.1 t/year
Street avg 3.3 t/year
SW3 5NR
Closest school
0.4 km
Christ Church CofE Primary School. 59 schools nearby.
Night-time· 23:00 – 07:00
49.3dB