21, SIXTH AVENUE, FLINT, CH6 5ND - £167,500

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.

21 SIXTH AVENUE is a small semi-detached house of 88m², built sometime between 1950 and 1966, which could now be worth an estimated £169,629. It was last sold for £167,500 in January 2026, which was around 11% below the average January 2026 semi-detached price in the Flintshire local authority area. The most recent EPC inspection was October 2018, where the current energy rating was C, and the potential energy rating was B.

21 SIXTH AVENUE Sold Prices

Land registry data shows two sales for 21 SIXTH AVENUE since 1^st January 1995. The below table shows the price paid for the two sales, along with the average semi-detached price in the Flintshire local authority area for the corresponding sale date. Both of the two 21 SIXTH AVENUE sales were for below the average price. The average price is sourced from the Office for National Statistics' House Price Index (HPI).

Date	Price	HPI Price	Variation from HPI
2026 5 JAN	£167,500	£188,496	11% below HPI
2019 14 MAR	£120,000	£137,765	13% below HPI

21 SIXTH AVENUE Price Paid vs. HPI Average

The below graph shows the average semi-detached house price in the Flintshire local authority area over time, sourced from the HPI. The two 21 SIXTH AVENUE sales from March 2019 and January 2026 have been plotted on the graph. A line has been extrapolated to show what the value of the property might have been over time, following each sale, had it maintained the same margin above or below the HPI (as a percentage). For example, the March 2019 sale was for 13% below the HPI. So the extrapolation line tracks at 13% below the HPI over time, until the January 2026 sale, where it rises to 11% below the HPI. The line then continues to track at 11% below the HPI.

What might 21 SIXTH AVENUE be worth now?

21 SIXTH AVENUE might now be worth an estimated £169,629.

This is based on house price inflation of 1.3%, between January 2026 and May 2026, for semi-detached houses, in the Flintshire local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).

The 1.3% inflationary increase is applied to the most recent sale price for 21 SIXTH AVENUE of £167,500 on 5th January 2026. For the value to have increased from £167,500 to £169,629 over the eight months to May 2026, the following assumptions must hold true:

• The value of 21 SIXTH AVENUE has moved in line with the HPI for semi-detached houses in the Flintshire local authority area.
• The January 2026 sale price of £167,500 represented a fair market value for the property.
• The size, condition, and specification of 21 SIXTH AVENUE has not materially changed since January 2026.

How Large is 21 SIXTH AVENUE?

21 SIXTH AVENUE is 88m² according to the EPC inspection conducted in October 2018. This puts it in the smallest 30% of semi-detached houses houses in Flint, based on EPC data. The below chart shows the distribution of semi-detached houses houses by size in Flint, and where 21 SIXTH AVENUE lies on this distribution: 26% of semi-detached houses houses are smaller than 21 SIXTH AVENUE, and 71% of houses are larger. Note that EPC data is not available for all properties in Flint.

21 SIXTH AVENUE: Plot and Title Map

21 SIXTH AVENUE sits on a plot of roughly 0.083 of an acre, or 337m². The below map shows the location of 21 SIXTH AVENUE, an approximate outline of the building(s), and the indicative extent of the property. The plot extent is a Land Registry INSPIRE Index Polygon, and it is important to note that a title may include more than one polygon, whereas only one polygon is shown on the map (the polygon which intersects with the position of 21 SIXTH AVENUE). The full extent of the land contained in any registered title can only be identified from the individual title plan. The maps on this page should not be relied upon to establish the extent of a title.

Where is 21 SIXTH AVENUE?

21 SIXTH AVENUE is located in FLINT, in the CH6 postcode district. The below map shows the position of No. 21 on SIXTH AVENUE.