Unable to answer "What’s the house number of this building?" – Detached House – https://osm.org/way/445490075 via StreetComplete 56.1:

House number

Beacon 15A - A masonry pillar similar to No. 15 standing on the summit of Tukani HIll. 13d 41m 54.90s South, 35d 06m 10.93s East.

Doreen Mashika clothing shop

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Unable to answer "What is the house number of this building?" for https://osm.org/way/466687517 via StreetComplete 19.2:

The whole block is one High School. All the buildings are school buildings.

Beacon 14 - Situated to the west of Lisyete Hill on the right bank of the Mlindi stream near its junction with the Namaunya stream. Built in a similar manner to Beacon No. 13. 14d 10m 13.16s South; 35d 30m 00.79s East.

Beacon 15A - A masonry pillar similar to No. 15 standing on the summit of Tukani HIll. 13d 41m 54.90s South, 35d 06m 10.93s East.

Beacon 17. Situated on the shore of Lake Nyasa immediately to the south of the mouth of the Lipuchi Stream, and built on a rocky point at a height of 22 feet 6 inches above the lake. The beacon consists of a block of masonry seven feet by seven feet and 4 feet high, surmounted by a masonry pillar two foot three inches by two foot three inches and four feet high. Latitude 13 28 57.99 (by triangulation) or -13.28 57.30 by astronomical observations.

The local regional boundary (4km northeast) and the corner of the international boundary should both coincide with the peak of the little mountain. Given that the photo registration is not 100% accurate should we move the boundaries to match the photo?