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Mill House, Mill Lane, Castleton, Cardiff, CF3 2UT

1 planning record

Estimated value

£522,000

  • Since the 2025 sale (£490,000)+7%
  • Against CF3 2UT's recent median (£775,000)-33%

Newest record on this page: April 2026. Land Registry and EPC registers update monthly, so this page can trail them by 2–3 months.

Learn about this valuation
Property type
Detached
Habitable rooms
8
From EPC
Floor area
158 m²
1701 sq ft
Energy rating
D
Score 60
Council tax
Band G
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

£522,000

  • Against its 2025 sale (£490,000)+7%
  • Against CF3 2UT's recent median (£775,000)-33%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for Mill House is modelled from its 158 m² EPC floor area, its 1 recorded sale and recent sales of comparable homes in CF3 2UT. 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

    158 m² from the EPC lodged in January 2024

  • Sales of this home

    1 sale recorded, the latest in 2025

  • Recent sales in CF3 2UT

    5 sales, median £775,000 (2022–2016)

This page or the full report?

DataThis pageFull report
SalesLatest sale shown: December 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.

Sales timeline

  1. 2 December 2025Most recent

    £490,000

Median price across the last 5 sales in CF3 2UT: £775,000 (2022–2016).

Risks

What this page doesn't show

1 potential issue has already been flagged for Mill House, Mill Lane, Castleton, Cardiff, CF3 2UT. The detail, evidence and what to ask about it are in the Risks 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 Mill House

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

Mill House is a detached house in Castleton, Cardiff, Cardiff (CF3 2UT). It has a recorded floor area of 158 m² (around 1701 sq ft), construction records dating it to before 1900 and council tax band G. The latest certificate (January 2024) shows a D (score 60), on the cusp of jumping into the C band. When first surveyed in August 2013 the rating was F, the property has climbed 2 bands since. Between certificates, hot-water efficiency went from Very Poor to Good and main heating went from Average to Good. The recommended improvements would lift it to B (score 83), a 2-band jump.

A recent sale: £490,000 in December 2025. At 158 m² it sits well below the postcode median (323 m² across 10 EPCs), making it one of the more compact homes locally. On a £-per-square-foot basis, the last sale (£288/sq ft) was about 69.3% above the typical sold price in the postcode. One historical planning record sits against the property in 2026.

Before you decide

Everything you need to know about Mill House

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

Larger 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.

Mill House's carbon output runs well above what efficient homes in the postcode produce.

Current Certificate(1 of 2)
Jan 2024

EPC Rating

A
B
C
D
D60
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Very Poor
CO2 Emissions
6.7 t/year
Occupancy
Owner Occupied

Certificate validity

Valid until 4 January 2034

7 years remaining

Property Improvements

Changes detected from historical EPC data

Jan 2024from Aug 2013
EPC improved fromF31toD60
Main Fuel
OilGas

Switched from oil to mains gas, reducing emissions and costs

Heating Controls
Prog + TRVsFull

Heating controls upgraded for better temperature management

Hot Water
Main (No Stat)Main System

Hot water system upgraded

Planning

Planning history

Applications and permits filed against Mill House, Mill Lane, Castleton, Cardiff, CF3 2UT, sourced from the PlanIt planning register.

1 application on record at Mill House, Mill Lane, Castleton, Cardiff, CF3 2UT

1 live now
0decisions19documents1nearby
  1. Apr 2026
    New BuildFull
    Outcome in report

    PROPOSED DETACHED DWELLING WITH DETACHED GARAGE AND ASSOCIATED WORKS

    Documents
    19 docs on file
    Reference
    26/0264
    Full record in report

Unlock Mill House, Mill Lane, Castleton, Cardiff, CF3 2UT's full planning history

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

  • Every decision — granted, refused or withdrawn
  • All 1 application on this property in full, plus 1 notable nearby
  • The 19 documents, officer reports & conditions
  • What the pattern means for extending or converting here
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On the street

Versus other Mill Lane homes

Four headline reads against 10 similar houses on this street, drawn from the latest EPC and Land Registry data.

Mill House is notably below the street on years held.

Price per m²

£3,101

Street avg £2,306

Strongly above

Floor Area

158 m²

Street avg 293 m²

Strongly below

Habitable Rooms

8 rooms

Street avg 8 rooms

Below

CO₂ Emissions

6.7 t/year

Street avg 9.2 t/year

Above
Area

The neighbourhood at a glance

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

Crime

242/mo

Falling year-on-year across the wider district.

Nearest stop

0.1 km

Coach & Horses — bus stop.

Nearest stops

  • Coach & HorsesBus stop117m
  • Castleton Old Post OfficeBus stop157m
  • Castleton RiseBus stop178m
  • Marshfield Primary SchoolBus stop548m

Most reported crime locally

  • Violence & Sexual Offences1,550 reports36%
  • Anti-social Behaviour627 reports14%
  • Public Order468 reports11%
  • Criminal Damage & Arson424 reports10%

Go deeper on the local area

A Local Area report breaks down crime, transport links, schools and air quality in depth.

SDL Surveying

Get a survey for this property

Level 3 Building Survey

Victorian-eraDetached HouseEPC DPre-1919 buildExtended multiple times (2+ extensions)

Because the property was built before 1919 and has been extended more than once, we believe a Level 3 building survey should be considered.

From £1,085 · 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.
£520k

1 Blacktown Gardens, Marshfield

CF3 2SF

4 bed
£512k

1 Herbert Close, Marshfield

CF3 2UD

£511k

1 Cypress Crescent, St Mellons

CF3 2WL

4 bed2 bath
£552k

1 Mallards Reach, Marshfield

CF3 2NN

4 bed2 bath
£557k

1 Bayview Cottage, Wellfield Road, Marshfield

CF3 2UB

£489k

1 Cambrian Grove, Marshfield

CF3 2US

4 bed2 bath
£486k

1 Acorn Place, Castleton

CF3 2WE

£482k

1 Groes Fawr Close, Marshfield

CF3 2AH

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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 Mill House is modelled from its 158 m² EPC floor area, its 1 recorded sale and recent sales of comparable homes in CF3 2UT. 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. 1 sale is recorded for Mill House. 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 Mill House was lodged in January 2024 at band D and is valid until January 2034. 2 certificates are on record, which shows how the home has changed.
Planning records
Planning applications are collected from local authority registers through PlanIt. 1 application is matched to Mill House. 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 18 months, which places each incident at an approximate point. Schools and stops are measured in a straight line from CF3 2UT.
Council tax band
Mill House is in council tax band G. Bands are set by the Valuation Office Agency from historic values (1 April 1991 in England, 1 April 2003 in Wales), not today's price; the amount you pay depends on the council's rate for the band.
FAQ

Common questions

The questions buyers, sellers and homeowners most often ask about Mill House, Mill Lane, Castleton, Cardiff, CF3 2UT. Each answer is also embedded as structured data for search engines.

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