01
Start with the home.
Share the property you’re considering. Its age, construction, and energy performance are part of the picture.
A clearer picture, before you move
Beautiful homes.
Hidden costs.
Fall for the home.
Know what it could cost to run.
We’re building a better way to understand a home’s energy costs — before you sign on the dotted line.
Get early accessIn development · Built with future renters & buyers in mind
LOOK A LITTLE CLOSER ↘
01 / The catch
The rent is only
part of the story.
You can picture the sofa. You know the commute.
But the energy bill? That often comes later.
A beautiful facade doesn’t tell you how a home holds heat, or how your everyday habits could affect its running costs. We think you should know more before you move.
THE COST OF CALLING IT HOME
Monthly rent In the listing
Deposit In the listing
Energy costsThe missing piece
Let’s make the hidden part clearer.
02 / What we’re building
A home’s energy story.
With you in it.
A planned approach that brings the property and your everyday life into the same picture.
02
Add the way you live.
Working from home? Like it warm? Your routines matter just as much as the building around you.
03
See beyond the listing.
Get an estimated view of energy costs, with the assumptions explained, to help you weigh up your next move.
This is the direction we’re developing. Join early access to help shape it.
03 / Get in early
Your next home.
Fewer unknowns.
Be among the first to try Watt’s the Catch.
Join the list for early-access invitations and occasional updates as we build.
A first look when we’re ready A chance to shape the product Leave the list whenever you like
Good questions make better homes.
A LITTLE CLARITY STARTS HERE.
A few good questions
So, what’s
the catch?
We’re at the beginning.
Here’s what you should know.
What is Watt’s the Catch?
We’re developing a tool to help renters and buyers understand a home’s potential energy costs before moving in. The idea is to look at the property alongside the way you live, so you can make a more informed decision.
Can I use the estimator now?
Not yet. We’re in development and inviting people to join our early-access list. Sign up and we’ll let you know when there’s something ready to try. We don’t have a confirmed launch date yet.
Who is early access for?
We’re starting with people looking for a home in London and the wider UK. Whether you’re renting, buying, or simply curious about your home’s running costs, you’re welcome to join.
Is it free to sign up?
Yes. Joining the early-access list is free and doesn’t commit you to buying anything. We’ll share details of the product and any pricing before you decide to use it.
Will it predict my exact energy bill?
The planned tool will provide estimates, not guaranteed bills. Actual costs depend on things like energy tariffs, weather, the building, and your usage. We want to make those assumptions clear.