6 Castle Mews, St Thomas Street, Oxford, OX1 1JR
About 6 Castle Mews
6 Castle Mews is a two-bedroom semi-detached house in Oxford (OX1 1JR). It has a recorded floor area of 47 m² (around 506 sq ft) and construction records dating it to 1991-1995. At 47 m² this is the smallest unit on EPC record across 6 Castle Mews (47–70 m²). The building's EPC ratings span D to C, with this unit at the top. On EPC score it ranks first in the building (77 versus a worst of 64). The latest certificate (March 2022) shows a C (score 77), near the top of the C band. The rating has held steady at C across 3 certificates since September 2009. Between certificates, lighting went from Poor to Very Good and main heating went from Poor to Average. Main heating runs on electricity.
It hasn't traded since November 2010, a hold of 16 years that's notably long for the area. At 47 m² it's 22.3% smaller than the typical home in the postcode (61 m² median across 26 EPCs). Across 1997–2010, sale prices on this property compounded at 6.9% per year. Today's modelled estimate of £350,000 is 48.9% above the 2010 sale price.
What this property has
Inside
- Bedrooms2
- Bathrooms1
- Dining roomYes
- EnsuiteYes
Outside
- ParkingAllocated
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
More low energy lighting installed
More low energy lighting installed
Planning history
6 Castle Mews has no planning applications on record.
Notable planning nearby
10applications of note in the surrounding area
We flagged 2 things worth checking at 6 Castle Mews
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
30-day money-back guarantee
Sales history & valuation
Sale price has at least doubled since 1997.
£350,000
Modelled from EPC, postcode comparables and a sale-price growth of 6.9% per year over 14 years.
£235,000
Growth on file: 6.9% per year over 14 years.
Sales timeline
12 November 2010Most recent
£235,000
+39.9%over 8 years14 December 2001
£168,000
+79.7%over 4 years17 January 1997
£93,500
Median price across the last 5 sales in OX1 1JR: £385,000 (2025–2022).
Nearby sales in OX1 1JR
9 Castle Mews, St Thomas Street, Oxford, OX1 1JR
Sold Aug 2025
£380,00018 Castle Mews, St Thomas Street, Oxford, OX1 1JR
Sold Mar 2025
£391,00016 Castle Mews, St Thomas Street, Oxford, OX1 1JR
Sold Sept 2023
£440,00021 Castle Mews, St Thomas Street, Oxford, OX1 1JR
Sold Jul 2023
£375,00020 Castle Mews, St Thomas Street, Oxford, OX1 1JR
Sold Sept 2022
£385,000
Versus other St Thomas Street homes
6 Castle Mews is notably below the street on floor area.
Price per m²
£5,000
Street avg £6,296
Floor Area
47 m²
Street avg 61 m²
Habitable Rooms
3 rooms
Street avg 3 rooms
CO₂ Emissions
2.3 t/year
Street avg 2.9 t/year
Similar properties nearby
1 Castle Mews, St Thomas Street
OX1 1JR
1 Rowland Hill Court, Osney Lane
OX1 1LE
1 Tidmarsh Lane
OX1 1AZ
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OX1 1HZ
1 Abbey Walk, Osney Lane
OX1 1NN
1 Dale Close
OX1 1TU
1 Preachers Lane
OX1 1RS
1 Swan Court, Paradise Street
OX1 1JB
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
6/mo
Rising year-on-year across the wider district.
Nearest stop
0.1 km
Park End Street — bus stop.
Closest school
0.3 km
Activate Learning. 17 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
52.5dB

Night-time· 23:00 – 07:00
43.5dB







