This website is operated by Keystone Group, a team of Gather Properties (E (1) 1536). The calculators run entirely in your browser — the numbers you enter are not sent to us. When you tap a WhatsApp button we record an anonymous click (page, language, listing reference, browser type) so we know which pages are useful; we do not record your phone number unless you message us. Messages you send us on WhatsApp or by email are used only to reply to you and to arrange viewings, and are not sold or shared except with the lawyers and bankers you ask us to introduce. To ask what we hold about you or to have it deleted, email ken.propertyagent@gmail.com.