Rental Indices are very few and far between, and notoriously inaccurate. I have collected several together in one location so that you can see an overall picture. They are always uptodate & refreshed for each viewing so bookmark this page for reference.
This graph plots the Rent Index in red which is taken as a 90 day average of rents. The graph also sets the Rent Index against a Trend Line in blue which is calculated through the longer 12 month period of averages rents
A survey of how Landlords feel.

Upad Landlord Confidence Index
| Houses | Ave. Price | % Change |
|---|---|---|
| Flats | Ave. Price | % Change |
Data Definition
This widget uses average rental price data from all homes to rent in London SW1 listed by letting agents advertising on FindaProperty.com in the last 90 days.
Data is presented for houses to rent in London SW1 & flats to rent in London SW1.
Property search tools by FindaProperty.com
Data from the Rentright Website to provide average prices for rental property throughout the UK. The charts are updated in real time when a rental property has been uploaded to the website. On the site you can sse the buttons to view the average price for different property types and different areas that are of interest.







[...] Rental Index [...]
One might say an index inaccurate. Another viewpoint would say any index records history with little predictive value.
With housing very, very few people consult an index before they figure out what they should pay. Some might be scared off buying when an index is down. Most of the time the decision to sell is tied to a family event. When there was no real Private Rental Sector (PRS) in the UK, sellers were more or less forced to re-enter the market as buyers.
Indexes make for fun discussions. Given that no two properties are exactly the same, using an index to predict what a specific property will sell for seems naive to me.
House prices rise because of demographic changes, the level of employment in an area (total jobs, levels of income) and inflation. While house prices might drop at various points the longer term trends will easily swallow the losses if the demographics, total income and inflation are all positive.
[...] Rental Indices [...]
Wouldn’t a Landlord or Letting Agent find that an Index supplemented their market knowledge?
I guess that rentals are going up as people from other European countries in trouble run away, but the crisis seems to be aiming to the banking industry again, in this case, what will happen with London?
UK has been doing well as having the pound and being able to devalue it to gain competitiveness, but UK can devalue more the pound? Won’t this be very inflationary?