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23 Castle Mews, St Thomas Street, Oxford, OX1 1JR

EPC B3 sales on record1 planning record
Property type
Semi-detached
Floor 1st
Bedrooms
2
Floor area
58 m²
624 sq ft
Energy rating
B
Score 81
Tenure
Owner Occupied
Overview

About 23 Castle Mews

A plain-English summary derived from public records, EPC certificates, sold prices and local data.

23 Castle Mews is a two-bedroom semi-detached house in Oxford (OX1 1JR). It has a recorded floor area of 58 m² (around 624 sq ft) and construction records dating it to 1996-2002. The latest certificate (April 2014) returns a B (score 81), comfortably above the UK average. Main heating runs on electricity. The latest certificate is from April 2014, so improvements made since then won't be reflected. At 58 m² this is the 13th 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, with this unit at the top. On EPC score it ranks first in the building (81 versus a worst of 48).

On energy efficiency it sits in the top 10% of properties in this postcode. Across 1997–2014, sale prices on this property compounded at 8% per year. On a £-per-square-foot basis, the last sale (£633/sq ft) was about 53.2% above the typical sold price in the postcode. On the market in July 2014 and unlisted since — roughly 12 years. One historical planning record sits against the property in 2022.

Specifications

What this property has

Pulled from EPC certificates, claim submissions and our property model. Empty categories are hidden — we only show what's known.

Inside

  • Bedrooms2

Outside

  • ParkingOff street

Building

  • Central heatingYes
  • RefurbishedYes
Before you decide

Everything you need to know about 23 Castle Mews

The true value, the hidden risks and the full sale history, in one report.

Signs of HMO activity in the areaLarger development activity nearby
£14.99one-off

30-day money-back guarantee

Preview of the full property report

The data behind every report

  • HM Land Registry, source of sold price history
  • Department for Education, source of schools data
  • Police.uk, source of crime statistics
  • Department for Transport, source of stations and transport links
  • Environment Agency, source of flood risk data
  • Department for Environment, Food & Rural Affairs, source of road noise data
  • PlanIt, source of planning application records
Energy

Energy performance

Every EPC certificate filed against this property — current rating, recorded improvements, and where there's headroom to reach a higher band.

23 Castle Mews ranks among the most efficient homes in the postcode for energy use.

EPC Expired

This certificate is over 10 years old and is no longer valid.Expired 07 Apr 2024

EPC Rating

A
B
B81
C
D
E
F
G
Main Heating
Electric
Main Fuel
Electric
Hot Water
Average
Windows
Good
CO2 Emissions
2.2 t/year
Occupancy
Owner Occupied
Planning

Planning history

Applications and permits filed against 23 Castle Mews, St Thomas Street, Oxford, OX1 1JR, sourced from the PlanIt planning register.
  1. Nov 2022
    Outline
    In report

    Application to certify that the proposed alteration to fenestration is lawful development.

    Documents
    7 docs on file
    Reference
    22/02214/CPU
    View planning record
Before you offer

We flagged 2 things worth checking at 23 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
£14.99

30-day money-back guarantee

Price

Sales history & valuation

Recorded transactions, our model's current estimate, and a quick read on what neighbouring properties have sold for.

23 Castle Mews has more than tripled in price since its earliest registered sale in 1997.

Current estimate

£432,000

Modelled from EPC, postcode comparables and a sale-price growth of 8.0% per year over 17 years.

See how we calculated this
Last sold (2014)

£395,000

Growth on file: 8.0% per year over 17 years.

Sales timeline

  1. 30 July 2014Most recent

    £395,000

    +46.3%over 6 years

  2. 10 April 2008

    £270,000

    +163.4%over 11 years

  3. 13 February 1997

    £102,500

Median price across the last 5 sales in OX1 1JR: £385,000 (2025–2022).

On the street

Versus other St Thomas Street homes

Four headline reads against 26 similar flats on this street, drawn from the latest EPC and Land Registry data.

On epc rating, 23 Castle Mews stands well clear of the street.

Price per m²

£6,810

Street avg £6,217

Above

Floor Area

58 m²

Street avg 60 m²

On par

Habitable Rooms

3 rooms

Street avg 3 rooms

On par

CO₂ Emissions

2.2 t/year

Street avg 2.9 t/year

Strongly above
Before you decide

Everything you need to know about 23 Castle Mews

The true value, the hidden risks and the full sale history, in one report.

Signs of HMO activity in the areaLarger development activity nearby
£14.99one-off

30-day money-back guarantee

Preview of the full property report

The data behind every report

  • HM Land Registry, source of sold price history
  • Department for Education, source of schools data
  • Police.uk, source of crime statistics
  • Department for Transport, source of stations and transport links
  • Environment Agency, source of flood risk data
  • Department for Environment, Food & Rural Affairs, source of road noise data
  • PlanIt, source of planning application records
Comparables

Similar properties nearby

A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
£450k

1 Rowland Hill Court, Osney Lane

OX1 1LE

2 bed2 bath
£460k

1 Tidmarsh Lane

OX1 1AZ

2 bed2 bath
£404k

1 Castle Mews, St Thomas Street

OX1 1JR

2 bed1 bath
£374k

1 Venneit Close

OX1 1HZ

3 bed2 bath
£256k

1 Abbey Walk, Osney Lane

OX1 1NN

1 bed1 bath
£781k

1 Dale Close

OX1 1TU

3 bed2 bath
£724k

1 Shirelake Close

OX1 1SN

4 bed
£430k

1 Faulkner Street

OX1 1UA

Area

The neighbourhood at a glance

A condensed read of the local area. Each tile links through to the full breakdown on the Oxford district page.
Full Oxford report

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.

Noise

Road noise across the postcode

Modelled day and night-time noise levels around OX1 1JR from Defra's strategic mapping. The pin marks this postcode's centroid.
Daytime road noise heatmap for OX1 1JR

Daytime· 07:00 – 23:00

52.5dB

Low
Night-time road noise heatmap for OX1 1JR

Night-time· 23:00 – 07:00

43.5dB

Low
55 dB
60 dB
65 dB
70 dB
75 dB
80 dB
Defra Road Noise Strategic Mapping, Round 4
FAQ

Common questions

The questions buyers, sellers and homeowners most often ask about 23 Castle Mews, St Thomas Street, Oxford, OX1 1JR. Each answer is also embedded as structured data for search engines.