Hi, thanks for mapping.

The buildings you mapped are well done as to their location. There are a few issue though.
1. Buildings sharing nodes with neighboring buildings. Please avoid this, if buildings need to be adjusted or improved later on, it is much harder to do if they share nodes with nearby features. 2. Unsquared buildings: most buildings do have right angled corners and we need our mapping to reflect that. Accurate building footprints are important because building sizes are often used to estimate population sizes for an area to conduct humanitarian activities. 3. Including courtyard in the building outline: use alternative imagery, eg Mapbox, to get a better view of the outlines.

Please check out these sources for more info: 
- Buildings--> https://www.youtube.com/watch?v=Xs5wX592E1o
- Roads--> https://www.youtube.com/watch?v=ZBLwb2nisJQ 
- https://docs.google.com/document/d/1Swwz-ZwM3_YOstqstsmCg1-lNAPbnMLpi1Al-h-2UOQ/edit

Thanks so much for your contribution, Martien, HOT global validator.