Adding an annexe to a home can increase its value by an average of £129,300, according to research from estate agency eXp UK.
The study analysed property listings across England to compare the value of homes with and without this highly sought-after feature.
Why annexes are so appealing
An annexe is a self-contained space, typically with its own entrance, providing additional accommodation without intruding on the main property. This feature is especially popular for hosting family or guests, offering privacy and comfort during extended stays.
Regional price premiums
The report highlights that annexes significantly boost property values across England, with regional variations in percentage and absolute price increases:
- Yorkshire and the Humber: Annexed homes command the highest percentage increase at 24.3%, equating to an additional £110,500.
- West Midlands and North East: Both regions see a 23.9% premium, equating to £135,095 and £101,252, respectively.
- South East: Annexed properties achieve the highest absolute premium of £167,500, representing a 21.4% value increase.
- London: While the percentage premium is lower at 10.3%, this still equates to an additional £107,550, reflecting the capital’s high property prices.
The annexe effect
Adam Day, Head of eXp UK, explains:
“An annexe provides the perfect compromise, allowing family to stay in their own private space. It’s a desirable feature that can attract a premium of around 21%, making annexed properties especially lucrative for sellers.”