1 June 2025
How estate layout shows up in leak and drainage requests
Leak tickets scatter across a city when you plot them by postcode. They tighten when you plot them by block and floor, if the extract holds those fields. A deck-access scheme will often show a vertical stripe of jobs under a failed walkway membrane; a street of houses will show a line along a shared rear gulley.
We do not survey roofs. We bring a density page to an Estate Walk Session and let the officer say whether the cluster sits under a known weak bay, a hopper that blocks with leaves, or a bin store whose roof sheet was patched twice. The walk notes go back into the briefing as captions, not as engineering certificates.
Drainage jobs rise after leaf fall and after a summer thunderstorm, but not in the same schemes. Tree-lined walks clog gullies; flat roofs pond. If the log only says ‘drainage’, both stories collapse into one bar. Splitting ‘internal leak’ from ‘external gulley’ — even roughly, from the landlord’s own codes — is worth an afternoon at intake.
Sheltered schemes add a further wrinkle: staff raise jobs on behalf of residents, so one scheme can look ‘noisy’ because the warden is diligent. We note staff-raised versus tenant-raised where the field exists, and we warn against ranking schemes by raw ticket count without homes and staffing in the denominator.
If floor and block are missing, a walk still helps, but the printed map will be coarser. Better a honest scheme-level page than a pretty drawing that invents flats we cannot see in the extract.