Osbourne House, Flat 4, 10 St Martins Lane, Beckenham, BR3 3XS
About Osbourne House
Osbourne House is a three-bedroom end-of-terrace house in Beckenham (BR3 3XS). It has a recorded floor area of 149 m² (around 1604 sq ft), construction records dating it to 1996-2002 and council tax band G. The latest certificate (June 2024) returns a B (score 81), comfortably above the UK average. The rating has held steady at B across 2 certificates since April 2011. Between certificates, window efficiency dropped from Good to Average and hot-water efficiency dropped from Very Good to Good. At 149 m² this is the 4th smallest of 8 units on EPC record in Osbourne House, where floor areas span 86–180 m². The building's EPC ratings span C to B, with this unit at the top. Other recorded features include a balcony.
Across 2001–2012, sale prices on this property compounded at 2.5% per year. Today's modelled estimate of £875,000 sits 75% above the 2012 sale of £500,000. Its energy rating outperforms most of the postcode (better than 73% of similar EPCs). 14 years since the last transfer (March 2012).
Know exactly what you're buying at Osbourne 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
Valuation
against the asking price
Risks
planning & flood
Sold prices
similar homes nearby
Trends
the local market
What this property has
Inside
- Bedrooms3
- Bathrooms2
- Open-plan layoutYes
- Dining roomYes
- Utility roomYes
- EnsuiteYes
Outside
- ParkingUnderground
- BalconyYes
Building
- RefurbishedYes
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Hot water efficiency decreased
More low energy lighting installed
Planning history
Osbourne House has no planning applications on record.
Notable planning nearby
8applications of note in the surrounding area
We flagged 3 things worth checking at Osbourne 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.
- Signs of HMO activity in the area
- Larger development activity nearby
- Environmental risk flagged
30-day money-back guarantee
Sales history & valuation
Osbourne House valuation sits well clear of the typical sold price in this postcode.
£875,000
Modelled from EPC, postcode comparables and a sale-price growth of 2.5% per year over 10 years.
£500,000
Growth on file: 2.5% per year over 10 years.
Sales timeline
29 March 2012Most recent
£500,000
+29.9%over 10 years6 November 2001
£385,000
Median price across the last 5 sales in BR3 3XS: £818,000 (2024–2020).
Nearby sales in BR3 3XS
Anderson House, Flat 1, 12 St Martins Lane, Beckenham, BR3 3XS
Sold May 2024
£950,000Anderson House, Flat 9, 12 St Martins Lane, Beckenham, BR3 3XS
Sold Feb 2023
£725,000Anderson House, Flat 3, 12 St Martins Lane, Beckenham, BR3 3XS
Sold Mar 2022
£590,000Osbourne House, Flat 2, 10 St Martins Lane, Beckenham, BR3 3XS
Sold Nov 2021
£900,00016 St Martins Lane, Beckenham, BR3 3XS
Sold Apr 2019
£727,500
Everything we know about Osbourne 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
- Signs of HMO activity in the area
- Larger development activity nearby
- Environmental risk flagged

Versus other St Martins Lane homes
Osbourne House is notably below the street on price per m².
Price per m²
£3,356
Street avg £4,468
Floor Area
149 m²
Street avg 142 m²
Habitable Rooms
4 rooms
Street avg 4 rooms
CO₂ Emissions
2.6 t/year
Street avg 2.9 t/year
Similar properties nearby
Anderson House, Flat 7, 12 St Martins Lane
BR3 3XS
Anderson House, Flat 1, 12 St Martins Lane
BR3 3XS
Anderson House, Flat 11, 12 St Martins Lane
BR3 3XS
Anderson House, Flat 10, 12 St Martins Lane
BR3 3XS
Anderson House, Flat 5, 12 St Martins Lane
BR3 3XS
Anderson House, Flat 2, 12 St Martins Lane
BR3 3XS
Anderson House, Flat 8, 12 St Martins Lane
BR3 3XS
Anderson House, Flat 9, 12 St Martins Lane
BR3 3XS
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
9/mo
Rising year-on-year across the wider district.
Nearest stop
0.3 km
Langley Court / West Gate — bus stop.
Closest school
0.2 km
Unicorn Primary School. 31 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
50.5dB

Night-time· 23:00 – 07:00
41.7dB