Cathay House, Flat 23, Cathay Street, Southwark, London, SE16 4TS
About Cathay House
Cathay House is a detached house in Southwark, London, London (SE16 4TS). It has a recorded floor area of 63 m² (around 679 sq ft), construction records dating it to 1950-1966 and council tax band B. At 63 m² this is the 6th smallest of 15 units on EPC record in Cathay House, where floor areas span 61–142 m². The building's EPC ratings span E to B, with this unit at the bottom. On EPC score it ranks last in the building (52 versus a best of 84). The latest certificate (February 2010) shows an E (score 52), well below the UK norm with real room to improve. The recommended improvements would push it to D (score 67). The latest certificate is from February 2010, so improvements made since then won't be reflected.
On energy efficiency it sits in the bottom 10% of properties in this postcode — significant headroom for improvement.
Know exactly what you're buying at Cathay 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
Launch offer · save £5
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
Energy performance
Cathay House sits at the bottom of the postcode for energy efficiency — meaningful headroom to improve.
EPC Expired
This certificate is over 10 years old and is no longer valid.Expired 08 Feb 2020
EPC Rating
Planning history
Cathay House has no planning applications on record.
Notable planning nearby
2applications of note in the surrounding area
We flagged 1 thing worth checking at Cathay 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.
- Larger development activity nearby
30-day money-back guarantee
Sales history & valuation
Cathay House has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£425,000
Modelled from EPC, postcode comparables.
No sales recorded with HM Land Registry
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
Median price across the last 5 sales in SE16 4TS: £502,500 (2025–2021).
Nearby sales in SE16 4TS
Cathay House, Flat 13, Cathay Street, Southwark, London, SE16 4TS
Sold Aug 2025
£502,5003 Cathay Street, Southwark, London, SE16 4TS
Sold Mar 2023
£1,400,000Cathay House, Flat 15, Cathay Street, Southwark, London, SE16 4TS
Sold Dec 2022
£485,000Cathay House, Flat 6, Cathay Street, Southwark, London, SE16 4TS
Sold Oct 2022
£499,950Cathay House, Flat 1, Cathay Street, Southwark, London, SE16 4TS
Sold Jun 2021
£515,000
Everything we know about Cathay 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
- Larger development activity nearby

Versus other Cathay Street homes
On epc rating, Cathay House runs well behind the street norm.
EPC Rating
52 (E)
Street avg 69 (D)
Floor Area
63 m²
Street avg 65 m²
CO₂ Emissions
4.6 t/year
Street avg 2.4 t/year
Habitable Rooms
3 rooms
Street avg 3 rooms
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The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
5/mo
Rising year-on-year across the wider district.
Nearest stop
0.2 km
Southwark Park — bus stop.
Closest school
0.4 km
Riverside Primary School. 98 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
53.8dB

Night-time· 23:00 – 07:00
43.2dB