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

3 sales on record2 planning records

Estimated value

£1,002,000

  • Since the 2022 sale (£985,000)+2%
  • Against CF3 2UT's recent median (£650,000)+54%

Newest record on this page: December 2025. 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
10
From EPC
Floor area
369 m²
3972 sq ft
Energy rating
C
Score 78
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

£1,002,000

  • Against its 2022 sale (£985,000)+2%
  • Against CF3 2UT's recent median (£650,000)+54%

Your note and figure are shown publicly on this page.

How the estimate is made

The estimate for Millfield House is modelled from its 369 m² EPC floor area, its 3 recorded sales 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

    369 m² from the EPC lodged in February 2022

  • Sales of this home

    3 sales recorded, the latest in 2022

  • Recent sales in CF3 2UT

    5 sales, median £650,000 (2025–2016)

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 of 2 applicationsFull 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.

Latest sale on Millfield House was the highest on Land Registry record across the postcode.

Sales timeline

  1. 7 July 2022Most recent

    £985,000

    +31.3%over 10 years

  2. 7 November 2011

    £750,000

    +201.2%over 3 years

  3. 11 September 2008

    £249,000

Median price across the last 5 sales in CF3 2UT: £650,000 (2025–2016).

Risks

What this page doesn't show

1 potential issue has already been flagged for Millfield 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

One time fee only - money back guarantee

Overview

About Millfield House

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

Millfield House is a detached house in Castleton, Cardiff, Cardiff (CF3 2UT). It has a recorded floor area of 369 m² (around 3972 sq ft) and construction records dating it to 2007-2011. The latest certificate (February 2022) shows a C (score 78), near the top of the C band. Earlier certificates rated it B (April 2010); the latest reading is one band lower. Between certificates, wall efficiency dropped from Very Good to Good and hot-water efficiency dropped from Very Good to Good. The recommended improvements would push it to B (score 81).

At 369 m² the property is well over the postcode median (283 m² across 10 EPCs), placing it in the larger end of the local stock. Its energy rating outperforms most of the postcode (better than 70% of similar EPCs). Across 2008–2022, sale prices on this property compounded at 10.5% per year. On a £-per-square-foot basis, the last sale (£248/sq ft) was about 45.7% above the typical sold price in the postcode. 2 planning records sit against the property, 2 approved, 0 refused. Most recent transfer: July 2022 at £985,000. That sale was during the post-pandemic price surge, when transactions cleared materially above pre-2020 trend.

Before you decide

Everything you need to know about Millfield 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.

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

Current Certificate(1 of 3)
Feb 2022

EPC Rating

A
B
C
C78
D
E
F
G
Main Heating
Gas
Main Fuel
Gas
Hot Water
Good
Windows
Good
CO2 Emissions
6.8 t/year
Occupancy
Owner Occupied

Certificate validity

Valid until 8 February 2032

5 years remaining

Property Improvements

Changes detected from historical EPC data

Apr 2011from Apr 2010
EPC improved fromB82toC79
Heating Controls
Full ControlFull

Heating controls changed

Roof Insulation
InsulatedWell Insulated

Loft insulation upgraded to recommended levels

Feb 2022from Apr 2011
Hot Water
Very GoodGood

Hot water efficiency decreased

Low Energy Lighting
22%100%

More low energy lighting installed

Planning

Planning history

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

2 applications on record at Millfield House, Mill Lane, Castleton, Cardiff, CF3 2UT

2decisions23documents1nearby
  1. Oct 2008
    New BuildFull
    Outcome in report

    ERECTION OF A NEW DWELLING HOUSE

    Documents
    21 docs on file
    Reference
    08/0982
    Full record in report
  2. More recent applications — locked
  3. ConditionsDecision

Unlock Millfield 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 (2 on record)
  • All 2 applications on this property in full, plus 1 notable nearby
  • The 23 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.

On floor area, Millfield House stands well clear of the street.

Price per m²

£2,669

Street avg £2,368

Above

Floor Area

369 m²

Street avg 272 m²

Strongly above

Habitable Rooms

10 rooms

Street avg 8 rooms

Strongly above

CO₂ Emissions

6.8 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

21st centuryDetached HouseEPC CDetached over 300m²Extended multiple times (2+ extensions)

Because the property is a large detached home over 300m² and has been extended more than once, we believe a Level 3 building survey should be considered.

From £1,645 · 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.
£933k

1 Castleton Gardens, Castleton

CF3 2WD

4 bed2 bath
£793k

1 Catherine Drive, Marshfield

CF3 2XB

4 bed2 bath
£658k

1 Clos Padrig, St Mellons

CF3 2AF

5 bed3 bath
£650k

1 Church Close, Peterstone Wentlooge

CF3 2TP

£649k

1 Clos Medwy, St Mellons

CF3 2AD

4 bed3 bath
£645k

1 Marshfield Road, Castleton

CF3 2UU

£640k

1 Clos Elphan, St Mellons

CF3 2AE

4 bed
£610k

1 Cambrian Crescent, Marshfield

CF3 2TD

5 bed4 bath

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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 Millfield House is modelled from its 369 m² EPC floor area, its 3 recorded sales 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. 3 sales are recorded for Millfield 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 Millfield House was lodged in February 2022 at band C and is valid until February 2032. 3 certificates are on record, which shows how the home has changed.
Planning records
Planning applications are collected from local authority registers through PlanIt. 2 applications are matched to Millfield 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.
FAQ

Common questions

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

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