Bytero Rent Grid

One row is one square and one flat: the square (CELL_ID with its centre), the flat (ROOMS, AREA_M2, CONDITION), and the modelled rent per month without utilities (RENT_NET_EUR) and with utilities (RENT_GROSS_EUR), with a range around the rent without utilities.

The rent model learns from the asking rents of rental adverts. Adverts state a rent in two ways, with or without utilities; the model is trained on the rent without utilities and adds the utilities for the second figure.

For each square the model is run at one point where flats are offered, for five flat sizes and three conditions. Squares with fewer than 10 rental adverts in the last 365 days are left out.

The squares carry the same ids as the Bytero Engine value grid, so the rent and the value of a flat join on CELL_ID.

The range is measured. Adverts whose text states the rent without utilities are split into two halves: one half gives the band that holds 80 % of the differences between an advert and its row of the grid, and RANGE_COVER_PCT is the share of the other half that fell inside that band.

The values are modelled asking rents, not agreed rents. A row is one point per square and a rounded flat, so a single flat can differ from its row. Flats in original condition are not in the grid: too few are offered for rent for the model to price them.