Guide · vendor lead capture · updated September 2026
The property valuation tool on your agency website
A property valuation tool on an estate agent’s website gives homeowners an instant estimate in return for their details, turning an anonymous visitor into a vendor lead.
This guide explains how online valuation tools work, how to choose and set one up, and what happens next. To be clear, Lettings Quest does not provide the estimate; our AI receptionist answers the call that follows and books the market appraisal.
01 · How it works
What a property valuation tool actually does
Six steps from a homeowner’s curiosity to a valuer at the door.
The homeowner enters an address and a few details. The tool looks up comparable sales and returns an estimated price or range.
In exchange, it asks for contact details, and the lead lands in your inbox or CRM.
The estimate usually comes from an automated valuation model. We explain those in our guide to AI property valuation.
02 · Three routes
Instant tool, form or portal leads?
Agencies capture valuation leads in three main ways. Most use more than one.
An instant valuation tool for estate agents gives the homeowner a number straight away, which draws more people in but can set expectations you then have to manage.
A simple “request a valuation” form gives nothing back instantly, so fewer people complete it, but those who do are often further along.
Portal valuation products, such as Rightmove’s Online Agent Valuation, bring leads from people already searching on the portal.
03 · Why it matters now
Vendors are asking for valuations online
The portals have noticed, and they are building valuation products of their own.
Rightmove reported valuation leads to agents up 50% year on year in January 2026, using its own data.
It launched Online Agent Valuation, with generative-AI tooling for agents, in October 2025.
With 16,385 agency branches advertising on Rightmove at the end of 2025, a vendor who asks online has plenty of agents to choose from.
04 · Managing expectations
What an instant estimate cannot see
An online valuation tool works from data. The things that change a price most are often not in the data.
That is why the estimate is a lead magnet, not a valuation. Say so clearly on the results page.
Show a range rather than a single figure, and invite the homeowner to book a free market appraisal for an accurate price.
05 · Setting one up
Online valuation tool setup checklist
Tick what your current tool already does. Nothing is stored.
The tool itself is the easy part. The value comes from what happens in the hour after someone presses submit.
Most of these points cost nothing to fix.
06 · The next step
The call that follows the online estimate
An illustrative call from a homeowner who has just used an agency’s online valuation tool.
Many homeowners who get an online estimate then pick up the phone to ask a person. That call is the moment the instruction is won or lost.
This is where Lettings Quest works: it answers, asks what the valuer needs to know and books the market appraisal into the live diary.
07 · Out of hours
Your tool works all night; does your phone?
Set your office hours. The strip shows the part of the week a vendor who calls back reaches voicemail.
An online valuation tool never closes. A branch phone line usually does.
How fast you answer after the estimate matters, which is why we wrote a separate guide to speed to lead.
08 · Where Lettings Quest fits
From online estimate to booked appraisal
Your valuation tool captures the lead. Lettings Quest is designed to handle the conversation after it.
We do not sell valuation tools or automated valuations. We answer the phone, qualify the vendor and book the valuer.
Every call is summarised and written to your estate agent CRM, next to the lead your tool created.
09 · Do you need one?
Is an instant valuation tool right for your agency?
Three questions. The result suggests where to put your effort first.
An online valuation tool is not always the answer. If you cannot follow up fast, more leads just means more leads lost.
Letting agents should look at an online rental valuation tool and landlord lead generation instead.
10 · Where to get one
Online valuation tools agents use
Examples of where UK agencies source valuation lead tools. Not a ranking or endorsement.
Many agency website platforms and CRMs offer valuation lead capture, so ask your current suppliers first.
Whichever you choose, check who owns the lead data and whether leads flow into your CRM automatically.
Check current features and terms with each provider.
FAQ · property valuation tool
Questions, answered
The things agents ask us first, in plain English.
Sources · every figure on this page