Guide to using our API

Below you'll find information about how to fully integrate into your website

The end point is located at

followed by postcode XX1-XX1

Each request must come with your assigned token. This token must be set within the header of your request.

The header must be set as follows: Header name: "token" with the value being your key

In C# you could use something like this
WebRequest request = WebRequest.Create("");

request.Headers.Add("token", "XXXXXXX-XXXXX-XXXXXXX-XXXXXXX-XXXX");

JSON class reference
Frequently Asked Questions
Data is provided "as is" and is for informational purposes only. Please read our Terms and Conditions
No personal information is collected, only statistical information about searches (time, browser type, url, IP address (due to abuse)) is collected.

Only essential cookies are set

This usually happens with queries to Land Registry, not always is there sufficient data do display and therefore you might sometimes see no information at all for certain postcode

Incidentally the same applies to Broadband, there occasionally might be no data at all

All of the above tends to apply to areas of low population

This is quite difficult to answer. But we aim to respond to (pre-saved postcodes) within 1s and for new postcodes within 3s

Any response will take longer to complete if the area experiences high number of crime activity, or unusually high number of sales (densely populous areas).

We recommend downloading data in the background on a separate thread than main page/application. Using asynchronous method is usually the best way to do it.

Version 2 has reduces foot print in terms of (repeating) JSON as is by default requested (internally) using async calls which is the recommended method to consume this API