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

1 planning record

Estimated value

£410,000

  • Since the 2025 sale (£391,000)+5%
  • Against OX1 1JR's recent median (£385,000)+6%

Newest record on this page: November 2025. Land Registry and EPC registers update monthly, so this page can trail them by 2–3 months.

Learn about this valuation
Property type
Semi-detached
Floor 02
Bedrooms
2
Bathroom
1
Floor area
52 m²
560 sq ft
Energy rating
C
Score 71
Tenure
Owner Occupied
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Valuation

About this valuation

How the figure is worked out and what it's based on. If you know this home, you can tell other visitors what you think it's worth.

Our estimate

£410,000

  • Against its 2025 sale (£391,000)+5%
  • Against OX1 1JR's recent median (£385,000)+6%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for 18 Castle Mews is modelled from its 52 m² EPC floor area, its 2 recorded sales and recent sales of comparable homes in OX1 1JR. It is an automated estimate, not a survey or mortgage valuation: condition, layout and improvements that aren't on record can move the real figure either way.

What it's based on

  • Floor area

    52 m² from the EPC lodged in February 2025

  • Sales of this home

    2 sales recorded, the latest in 2025

  • Recent sales in OX1 1JR

    5 sales, median £385,000 (2025–2022)

This page or the full report?

DataThis pageFull report
SalesLatest sale shown: November 2025Latest available records, read when you order
ValuationEstimate from the last refreshAnalysed against comparable sales
Planning1 applicationFull history, plus nearby schemes
Flood riskNot shownIncluded
Price

Sales history & valuation

Every recorded sale of this home, how its price has moved, and what neighbouring properties have sold for.

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

Sales timeline

  1. 26 March 2025Most recent

    £391,000

    +200.8%over 27 years

  2. 2 October 1997

    £130,000

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

Risks

What this page doesn't show

2 potential issues have already been flagged for 18 Castle Mews, St Thomas Street, Oxford, OX1 1JR. The detail, evidence and what to ask about it are in the Risks Report.
  • Signs of HMO activity in the areaIn report
  • Larger development activity nearbyIn report
  • Flood risk from rivers, sea and surface waterIn report
  • Subsidence and ground-stability signalsIn report
  • Refusals, enforcement and big schemes nearbyIn report

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Overview

About 18 Castle Mews

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

18 Castle Mews is a two-bedroom semi-detached house in Oxford (OX1 1JR). It has a recorded floor area of 52 m² (around 560 sq ft) and construction records dating it to 2007-2011. At 52 m² this is the 7th 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. The latest certificate (February 2025) shows a C (score 71). The recommended improvements would push it to B (score 84). Main heating runs on electricity.

Most recent transfer was March 2025 at £391,000 — fresh data. One planning record on file: new windows approved in 2022. Past consents include new windows, meaningful when judging how the property has evolved. Across 1997–2025, sale prices on this property compounded at 4.1% per year. On a £-per-square-foot basis, the last sale (£699/sq ft) was about 63.1% above the typical sold price in the postcode.

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
  • Bathrooms1

Outside

  • GarageDouble
Before you decide

Everything you need to know about 18 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

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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.
Current Certificate
Feb 2025

EPC Rating

A
B
C
C71
D
E
F
G
Main Heating
Electric
Main Fuel
Electric
Hot Water
Very Poor
Windows
Good
CO2 Emissions
1.8 t/year
Occupancy
Owner Occupied

Certificate validity

Valid until 5 February 2035

8 years remaining
Planning

Planning history

Applications and permits filed against 18 Castle Mews, St Thomas Street, Oxford, OX1 1JR, sourced from the PlanIt planning register.

1 application on record at 18 Castle Mews, St Thomas Street, Oxford, OX1 1JR

1decisions7documents10nearby
  1. Oct 2022
    Outline
    Outcome in report

    Application to certify that the proposed replacement of second floor windows is lawful development

    New Windows
    Documents
    7 docs on file
    Reference
    22/01924/CPU
    Full record in report

Unlock 18 Castle Mews, St Thomas Street, Oxford, OX1 1JR's full planning history

You're seeing the shape of it. The report has the substance.

  • Every decision — granted, refused or withdrawn (1 on record)
  • All 1 application on this property in full, plus 10 notable nearby
  • The 7 documents, officer reports & conditions
  • What the pattern means for extending or converting here
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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 co₂ emissions, 18 Castle Mews stands well clear of the street.

Price per m²

£7,519

Street avg £6,225

Strongly above

Floor Area

52 m²

Street avg 60 m²

Below

Habitable Rooms

3 rooms

Street avg 3 rooms

On par

CO₂ Emissions

1.8 t/year

Street avg 2.9 t/year

Strongly above
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

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.

Nearest schools

  • Activate Learning16 plus297m
  • West Oxford Community Primary SchoolPrimary645m
  • St Barnabas' Church of England Aided Primary SchoolPrimary822m
  • St Ebbe's Church of England Aided Primary SchoolPrimary874m

Nearest stops

  • Park End StreetBus stop123m
  • Frideswide SquareBus stop158m
  • New RoadBus stop253m
  • Oxford Rail StationRailway station276m

Most reported crime locally

  • Violence & Sexual Offences1,485 reports31%
  • Shoplifting727 reports15%
  • Other Theft483 reports10%
  • Public Order459 reports9%

Go deeper on the local area

A Local Area 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
SDL Surveying

Get a survey for this property

Level 3 Building Survey

21st century2nd Floor FlatEPC CNo mains gas

Because the property has no mains gas supply, we believe a Level 3 building survey should be considered.

From £1,020 · Includes VAT

Comparables

Similar properties nearby

A handful of close matches in the same postcode area, ranked by likeness on bedrooms, type and floor area.
£394k

1 Castle Mews, St Thomas Street

OX1 1JR

2 bed1 bath
£428k

1 Tidmarsh Lane

OX1 1AZ

2 bed2 bath
£450k

1 Rowland Hill Court, Osney Lane

OX1 1LE

2 bed2 bath
£375k

1 Venneit Close

OX1 1HZ

3 bed2 bath
£240k

1 Abbey Walk, Osney Lane

OX1 1NN

1 bed1 bath
£715k

1 Dale Close

OX1 1TU

3 bed2 bath
£422k

1 Swan Court, Paradise Street

OX1 1JB

£729k

1 Shirelake Close

OX1 1SN

4 bed

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Method

How to read this page

Where every figure above comes from, how current it is and what it can't tell you.
Valuation method in detail
How the estimate is made
The estimate for 18 Castle Mews is modelled from its 52 m² EPC floor area, its 2 recorded sales and recent sales of comparable homes in OX1 1JR. It is an automated estimate, not a survey or mortgage valuation: condition, layout and improvements that aren't on record can move the real figure either way.
Where sold prices come from
Sold prices are HM Land Registry Price Paid Data, which covers residential sales in England and Wales since 1995. 2 sales are recorded for 18 Castle Mews. Sales normally appear two to three months after completion, so the most recent ones take time to show up anywhere.
Reading the EPC
Energy Performance Certificates rate homes from A (most efficient) to G and last 10 years. The latest one for 18 Castle Mews was lodged in February 2025 at band C and is valid until February 2035. Floor area, heating and insulation details on this page come from it.
Planning records
Planning applications are collected from local authority registers through PlanIt. 1 application is matched to 18 Castle Mews. Councils sometimes file applications under a different address format, and applications on neighbouring land aren't listed here; the report covers both.
Area figures
Crime is police-recorded street-level data over the last 17 months, which places each incident at an approximate point. The 17 schools and 30 stops listed are measured in a straight line from OX1 1JR, not by walking route. Road noise is Defra's strategic noise modelling, averaged across the postcode.
FAQ

Common questions

The questions buyers, sellers and homeowners most often ask about 18 Castle Mews, St Thomas Street, Oxford, OX1 1JR. Each answer is also embedded as structured data for search engines.

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