Gera Rent Index — methodology

The Gera Rent Index is a transparent measure of how expensive an area is to rent for a specific bedroom count or property type, relative to the UK as a whole.

Formula

For a given dimension (e.g. a 2-bedroom home, or a detached property):

Gera Rent Index = round( area_rent / uk_average_rent × 100 )

Both inputs are the official ONS average monthly private rent for the same dimension. A value of 100 means the area matches the UK average exactly; 150 means 50% above the UK average; 70 means 30% below.

Worked example

The UK average rent for a 2-bedroom home is £1,266 (May 2026). Kensington and Chelsea has the highest 2-bedroom rent in the UK at £3,335, so its Gera Rent Index is round(£3,335 / £1,266 × 100) = 263.

Data source & cadence

Every figure comes from the Office for National Statistics — Price Index of Private Rents, UK: monthly price statistics (17 June 2026 edition, reference month May 2026), published by the Office for National Statistics under the Open Government Licence v3.0. The index is recomputed each month when ONS releases a new edition — no figure is estimated, smoothed or hand-entered.

Back to UK rent by bedroom count or UK rent by property type.