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MILLBROOK HOUSE, MILL LANE, CASTLETON, CARDIFF, CF3 2UT - £830,000

The information on this page is based on a number of underlying datasets, most of which are updated monthly. We maintain an update schedule which explains which version of each dataset we are currently relying on.

MILLBROOK HOUSE is a very large extended detached house of 320m², built sometime between 1996 and 2002, which could now be worth an estimated £1,345,935. It was last sold for £830,000 in August 2016, which was around 233% above the average August 2016 detached price in the Newport local authority area. The most recent EPC inspection was September 2014, where the current energy rating was D, and the potential energy rating was C.

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MILLBROOK HOUSE Sold Prices

Land registry data shows one sale for MILLBROOK HOUSE since 1st January 1995. The below table shows the price paid for the one sale, along with the average detached price in the Newport local authority area for the corresponding sale date. The average price is sourced from the Office for National Statistics' House Price Index (HPI).

DatePriceHPI PriceVariation from HPI
2016
12 AUG
£830,000£248,880
up arrow
233% above HPI

What might MILLBROOK HOUSE be worth now?

MILLBROOK HOUSE might now be worth an estimated £1,345,935.

This is based on house price inflation of 62.2%, between August 2016 and April 2026, for detached houses, in the Newport local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).

The 62.2% inflationary increase is applied to the most recent sale price for MILLBROOK HOUSE of £830,000 on 12th August 2016. For the value to have increased from £830,000 to £1,345,935 over the ten years and four months to April 2026, the following assumptions must hold true:

  • The value of MILLBROOK HOUSE has moved in line with the HPI for detached houses in the Newport local authority area.
  • The August 2016 sale price of £830,000 represented a fair market value for the property.
  • The size, condition, and specification of MILLBROOK HOUSE has not materially changed since August 2016.
Disclaimer: Please note that this is a theoretical estimate based on assumptions which may or may not be correct. It should not be relied on for any purpose.

How Large is MILLBROOK HOUSE?

MILLBROOK HOUSE is 320m², which includes one extension, according to the EPC inspection conducted in September 2014. This puts it in the largest 20% of detached houses in Castleton, based on EPC data. The below chart shows the distribution of detached houses by size in Castleton, and where MILLBROOK HOUSE lies on this distribution: 89% of detached houses are smaller than MILLBROOK HOUSE, and 11% of detached houses are larger. Note that EPC data is not available for all properties in Castleton.

MILLBROOK HOUSE, MILL LANE, CASTLETON, CARDIFF, CF3 2UT: Size of property relative to detached houses in Castleton

MILLBROOK HOUSE: Plot

MILLBROOK HOUSE sits on a plot of roughly 0.379 of an acre, or 1,533m².

Where is MILLBROOK HOUSE?

MILLBROOK HOUSE is located on MILL LANE in CASTLETON, in the CF3 postcode district.

All property sales on MILL LANE

Most recent sales first:

Limited data available
2025
2 DEC
£490,000
Full data available
2022
8 JUL
£985,000
Full data available
2021
5 FEB
£650,000
Full data available
2020
28 MAY
£604,000
Limited data available
2020
31 MAR
£775,000
Limited data available
2016
12 AUG
£830,000
Full data available
2016
30 MAR
£432,000
Full data available
2014
15 AUG
£650,000
Full data available
2014
11 APR
£370,000
Full data available
2011
7 NOV
£750,000
Limited data available
2009
1 OCT
£499,995
Full data available
2009
6 JAN
£220,000
Full data available
2008
12 SEP
£249,000
Full data available
2000
20 APR
£249,950
Full data available
1999
24 MAR
£86,000
Limited data available
1998
4 DEC
£249,400
Full data available
1997
10 JAN
£139,000
Source: HM Land Registry Price Paid Data
Licence: Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.
Source: HM Land Registry UK House Price Index
Licence: Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.
Source: Energy Performance of Buildings Data: England and Wales
Licence: Ordnance Survey and Royal Mail Copyright and Database Right Notice.
Licence: Open Government Licence v3.0.
Source: INSPIRE Polygons
Copyright statement: This information is subject to Crown copyright and database rights 2026 and is reproduced with the permission of HM Land Registry. The polygons (including the associated geometry, namely x, y co-ordinates) are subject to Crown copyright and database rights 2026 Ordnance Survey 100026316. Conditions of use.
Licence: Open Government Licence v3.0.