When Daft.ie has this much market share in a vertical, the product question is less "how do we beat them" and more "where are the gaps they can't or won't fill." This is what I learned building into that market.
The incumbent's structural advantages
Daft has a network effect problem for any competitor: landlords list where renters search, renters search where landlords list. Daft has had 20+ years to build that flywheel. The listing density is the moat, not the product.
Trying to compete on listing volume as a new entrant is a losing game. You can't persuade landlords to post on your platform when you have no renters, and you can't attract renters when you have no listings. This is the classic marketplace cold-start problem with an unusually entrenched incumbent.
The product decision I made early: don't try to be a competing listing marketplace. Be a better search and discovery layer on top of the existing market. That means aggregating sources rather than becoming one.
What aggregation unlocks
If you're the aggregation layer, you don't need landlords to list with you. You pull from existing sources, including Daft, and show renters a more complete picture. The value proposition to renters doesn't depend on convincing landlords to change behavior.
The technical challenge is that no portal exposes a public API for listing data. Everything is scraped. That means maintaining extractors for each source, handling anti-scraping measures, normalizing inconsistent data formats, and keeping everything fresh. It's more engineering than a single portal requires, but it removes the cold-start problem entirely.
It also means the incumbent is complementary rather than an adversary. Daft has listings. I surface those listings with better search tools alongside listings from sources Daft doesn't aggregate. I'm adding value on top of Daft's data, not competing for their listing volume.
The product layer on top of data
Raw aggregation is a commodity play. It's useful but easy to copy. The defensible layer is what you build on top of the data.
For HomeScout the differentiating features are:
Natural language search. Daft has dropdown filters. If you want "2-bed near the DART, under 1800, pet-friendly" you have to translate that into Daft's filter vocabulary yourself, and some of it (transport proximity, pet policy across all listings) isn't filterable at all. Parsing intent from freetext and executing it as a structured query is a real improvement for search quality.
Cross-source comparison. When listings are normalized to the same format, side-by-side comparison is possible across sources. On Daft you can only compare within Daft.
Alerts with full-market coverage. Setting up alerts on Daft gives you Daft's inventory. Setting up alerts that cover 90+ sources gives you the full visible market. That coverage difference matters in a fast-moving market.
Application tracking and AI tools. Once someone finds a listing and wants to apply, the process is still manual. AI-assisted lease review and email drafting are add-ons that help at the next stage of the funnel.
What I got wrong early on
My first instinct was to compete on data volume: as many listings as possible, fresh as possible. That led me to over-invest in scraping infrastructure before I understood what users actually wanted.
Users didn't want more listings. They wanted less noise and faster paths to listings that actually matched their criteria. The search and alerting quality mattered more than marginal improvements in source coverage beyond a certain threshold.
I also underestimated how much of the market moves through channels I can't reach: word of mouth, agency email lists, existing tenant networks. No aggregator touches those. Setting user expectations appropriately matters.
The honest competitive picture
Daft will always have advantages I don't: direct landlord relationships, a recognized brand, the listing density flywheel. Competing directly on those dimensions doesn't make sense.
The space for a different product is on the search and tooling side for renters. Better search, better alerts, better comparison, better tools for the application process. None of those require being the listing source. They require being useful on top of the listing sources that exist.
That's a narrower position than being a full marketplace, but it's defensible and it's genuinely useful in a way that the existing tools aren't.
I wrote a user-facing comparison of the apps in this market at https://homescout.io/guide/best-rental-apps-ireland with less of the founder perspective and more of the practical breakdown.
Caspar Bannink. Founder of HomeScout.io. Building AI-powered rental search for Dublin.