Cathay House, Flat 21, Cathay Street, Southwark, London, SE16 4TS
About Cathay House
Cathay House is a two-bedroom mid-terrace house in Southwark, London, London (SE16 4TS). It has a recorded floor area of 64 m² (around 689 sq ft), construction records dating it to 1991-1995 and council tax band B. The latest certificate (November 2024) shows a C (score 75), near the top of the C band. The rating has held steady at C across 2 certificates since May 2013. Between certificates, window efficiency went from Average to Good, hot-water efficiency went from Very Poor to Poor and lighting went from Good to Very Good. The recommended improvements would push it to B (score 82). Main heating runs on electricity. At 64 m² this is the 7th 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 across 15 units on file. Other recorded features include a balcony.
Untraded for 22 years, with the last transfer in June 2004. Today's modelled estimate of £417,000 sits 138.3% above the 2004 sale of £175,000. On a £-per-square-foot basis, the last sale (£254/sq ft) was about 63.9% below the postcode norm.
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
What this property has
Inside
- Bedrooms2
- Bathrooms1
Outside
- BalconyYes
Building
- RefurbishedYes
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Heating controls upgraded for better temperature management
Hot water system upgraded
Window efficiency improved
More low energy lighting installed
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
£417,000
Modelled from EPC, postcode comparables.
£175,000
Recorded with HM Land Registry.
Sales timeline
8 June 2004Most recent
£175,000
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 stands well clear of the street.
Price per m²
£2,734
Street avg £5,998
Floor Area
64 m²
Street avg 65 m²
Habitable Rooms
3 rooms
Street avg 3 rooms
CO₂ Emissions
2.0 t/year
Street avg 2.6 t/year
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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