Zoopla
Zoopla aims to be the Zillow of the UK. Search for sold house prices and estimates for any UK property (note: lookups seem to work better using the postal code instead of the street address). The site also features a heatmap of UK property values and other stats by home type and area.
Mouseprice
Mouseprice purports itself to be the leading source of UK property market information online. Its parent company, Landmark Analytics, is a statistical consultancy to banks and financial institutions specializing in the field of automated valuation models (AVMs). Search for sold house prices and valuations for properties in the UK.
192.com
Offers data on UK people, businesses, and places. Free registered users get up to 20 searches per day and can see limited results. Many of the site’s databases require paid credits to use, including electoral rolls; birth, marriage, and death records; company reports; director reports; and county court judgments.
Companies House
Companies House is the agency responsible for incorporating and dissolving limited companies in the UK. It also registers, examines, and stores company information and makes it available to the public. Search by company name or number, or by officer name.
The Lawyer
What American Lawyer does for American law firms, The Lawyer does for British law firms. A table of trainee and newly qualified (NQ) solicitor salaries as of summer 2019 is available for free, but access to The Lawyer Salary Survey requires a subscription.
Navy CyberSpace
British military pay tables through 2016 are available.
The Phone Book from BT
Another useful phone directory for the UK. Includes both white and yellow page searches.
The Sunday Times Rich List
The 1,000 wealthiest people in Britain. Requires a subscription to view the list in its entirety.