[Assessed 90.3%] Land in Adachi, Tokyo — 9 min from Gotanno Sta.

The listing gives the lot number (Kodo 1-36-13), so we geocoded it with the Geospatial Information Authority's address search and matched it against the block numbers 33, 34, 35, 36 and 38 drawn on road price map sheet 50062. The roads around block 36 are all marked 330D on every side, so we used JPY 330,000 per sqm.

The frontage is a designated private road that carries no price of its own on the map, so we took the value of the adjoining public road. Streets in Kodo 1-chome range from 295D to 350D. Even the lowest, 295D, gives 80.8%, and 310D gives 84.9%, so a reading error does not take this below the 80% line.

Because this is a flag-shaped plot, we deducted the access strip from the area. The site plan is not a surveyed drawing, and reading it off the scale gave two answers, 3.1 sqm and 5.7 sqm. We took the larger deduction, 5.7 sqm, for an effective area of 54.2 sqm. Where figures disagree we take the smaller area.

We looked at three site photographs of the land and the site plan. The plot and the road in front are flat, with no retaining wall, no step at the frontage, no stepped access and no cut slope; the boundaries with neighbouring plots are level. Twenty-five readings from the 1 m mesh elevation data over a 100 m square gave a maximum difference of 0.8 m, and under 0.3 m near the plot.

The same property appears on SUUMO under two listing numbers, nc_78140278 and nc_20767448. The contents are identical; we use nc_78140278 as our source.