The challenge
Map-based property search is performance-hostile: hundreds of markers, images loading as the user pans, and a list view that must stay in sync with the map without stuttering.
What we built
- Marker clustering so the map stays responsive at any zoom level rather than rendering every listing.
- Image loading tied to viewport, cancelling requests for listings the user has panned away from.
- Saved searches evaluated server-side, with push notification when a new listing matches.
- List and map sharing one state source, so filtering either updates both without a round trip.
Outcome
Panning and filtering stay smooth at listing densities where naive map implementations stall.
Built with
React NativeFirebaseMapBox
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