5 Castle Mews, St Thomas Street, Oxford, OX1 1JR
About 5 Castle Mews
5 Castle Mews is a mid-terrace house in Oxford (OX1 1JR). It has a recorded floor area of 49 m² (around 527 sq ft) and construction records dating it to 1996-2002. At 49 m² this is the smallest unit on EPC record across 5 Castle Mews (49–64 m²). The building's EPC ratings span D to C, with this unit at the top. The latest certificate (October 2022) shows a C (score 70). The rating has held steady at C across 2 certificates since September 2018. Between certificates, lighting went from Average to Very Good; while hot-water efficiency dropped from Poor to Very Poor. The recommended improvements would push it to B (score 83). Main heating runs on electricity.
Held since October 2003 — that's 23 years off the open market, well above the local norm. Across 1997–2003, sale prices on this property compounded at 12.2% per year. Today's modelled estimate of £363,000 sits 79.3% above the 2003 sale of £202,500. At 49 m² it's 19% smaller than the typical home in the postcode (61 m² median across 26 EPCs).
Energy performance
EPC Rating
Property Improvements
Changes detected from historical EPC data
Hot water system changed
More low energy lighting installed
Planning history
5 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 5 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
5 Castle Mews has more than doubled in price since the earliest registered sale in 1997.
£363,000
Modelled from EPC, postcode comparables and a sale-price growth of 12.2% per year over 7 years.
£202,500
Growth on file: 12.2% per year over 7 years.
Sales timeline
2 October 2003Most recent
£202,500
+41.6%over 2 years26 January 2001
£143,000
+52.9%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
5 Castle Mews outperforms the street on years held by a wide margin.
Price per m²
£4,133
Street avg £6,333
Floor Area
49 m²
Street avg 61 m²
Habitable Rooms
3 rooms
Street avg 3 rooms
CO₂ Emissions
1.8 t/year
Street avg 2.9 t/year
Similar properties nearby
1 Venneit Close
OX1 1HZ
1 Swan Court, Paradise Street
OX1 1JB
1 Castle Mews, St Thomas Street
OX1 1JR
1 Preachers Lane
OX1 1RS
10 Bridges Cross, Speedwell Street
OX1 1EZ
1 Brooks Taylor Court, Albion Place
OX1 1UB
1 Faulkner Street
OX1 1UA
1 The Hamel
OX1 1JU
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







