26 Castle Mews, St Thomas Street, Oxford, OX1 1JR
About 26 Castle Mews
26 Castle Mews is a semi-detached house in Oxford (OX1 1JR). It has a recorded floor area of 55 m² (around 592 sq ft) and construction records dating it to 1991-1995. The latest certificate (September 2020) shows a D (score 64), on the cusp of jumping into the C band. The rating has held steady at D across 3 certificates since March 2009. Between certificates, lighting went from Average to Very Good; while main heating dropped from Average to Poor. The recommended improvements would push it to C (score 70). Main heating runs on electricity. At 55 m² this is the 9th smallest of 27 units on EPC record in the building, where floor areas span 45–86 m². The building's EPC ratings span E to B across 27 units on file.
Across 1997–2022, sale prices on this property compounded at 5.4% per year. On a £-per-square-foot basis, the last sale (£642/sq ft) was about 49.9% above the typical sold price in the postcode. Most recent transfer: January 2022 at £380,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.
Everything you need to know about 26 Castle Mews
The true value, the hidden risks and the full sale history, in one report.
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Energy performance
EPC Rating
Certificate validity
Valid until 21 September 2030
Property Improvements
Changes detected from historical EPC data
More low energy lighting installed
Ventilation system changed
Get a survey for this property
Level 3 Building Survey
Because the property has no mains gas supply, we believe a Level 3 building survey should be considered.
From £955 · Includes VAT
Planning history
26 Castle Mews has no planning applications on record.
But the area is active
10 notable applications nearby — larger schemes and conversions that could reshape the street. The report maps them all.
Sales history & valuation
Sale price has grown by over 3x since 1997.
£368,000
Modelled from EPC, postcode comparables and a sale-price growth of 5.4% per year over 25 years.
£380,000
Growth on file: 5.4% per year over 25 years.
Sales timeline
26 January 2022Most recent
£380,000
+270.7%over 24 years21 February 1997
£102,500
Median price across the last 5 sales in OX1 1JR: £391,000 (2025–2023).
Nearby sales in OX1 1JR
3 Castle Mews, St Thomas Street, Oxford, OX1 1JR
Sold Nov 2025
£400,0009 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
£375,000
Versus other St Thomas Street homes
26 Castle Mews is notably below the street on co₂ emissions.
Price per m²
£6,909
Street avg £6,251
Floor Area
55 m²
Street avg 60 m²
Habitable Rooms
3 rooms
Street avg 3 rooms
CO₂ Emissions
3.5 t/year
Street avg 2.9 t/year
Everything you need to know about 26 Castle Mews
The true value, the hidden risks and the full sale history, in one report.
Pick your report · from £14.99
One time fee only - money back guarantee

Similar properties nearby
The neighbourhood at a glance
Rail-style transport is unusually close for this postcode.
Crime
286/mo
Steady 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
A Local Area 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






