Reply faster.
Host smarter.
Source bigger.
YieldKey builds AI agents that handle the speed-sensitive and judgment-heavy work in property — instant lead replies for agencies, guest messaging for hosts, and deal flow for investors. Built and tested in our own UK property business before we offered it to anyone else.
Three products. One mission: yield more.
Reply first. Win the instruction.
The average UK agency takes 15 hours to respond to a new property enquiry. YieldKey Reply replies in under 60 seconds, qualifies the lead, and books the viewing — without adding a single person to your team.
An AI co-host that actually replies at 11pm.
Guest messaging, calendar handling, listing optimisation, and clean owner reporting — for hosts and STR managers who don't want to choose between sleep and 5-star reviews.
Better deals. Faster. Before the listing goes live.
YieldKey Source scans the market, surfaces off-market opportunities matched to your investment criteria, scores deals on yield and condition, and runs first-contact outreach — so your time goes into closing, not searching.
Speed isn't a nice-to-have. It's the whole game.
We built this in our own property business first.
YieldKey started as an internal tool inside Infinity Stays, our own UK property operation. We built it because we were losing leads to faster competitors and getting woken up by guest messages at 2am. The first version replied to our enquiries while we slept. Now we're rolling it out to a small number of UK agencies and STR operators who want the same advantage.
From mapping to live in under a week.
- 01 · Days 1–2 · Mapping
We learn how you actually work.
We capture your scripts, qualification process, CRM, calendar, and tools — exactly as your team uses them today.
- 02 · Days 2–3 · Training
The AI learns your tone.
We train YieldKey on your brand, decision rules, and edge cases. You sign off on every reply pattern before launch.
- 03 · 48 hrs from sign-off · Go live
Connected to your stack.
Plugged into your portals, CRM, and calendar. Replies start within minutes, monitored by your team.
See it working on a real enquiry.
15 minutes. We'll run it live against an enquiry from your inbox or a property URL. No slide deck.