Material planning considerations can include (but are not limited to): Overlooking/loss of privacy. Loss of daylight/sunlight or overshadowing.

Is loss of privacy a valid planning objection?

There are lots of valid objections to planning applications, called “material planning considerations”. These include: Loss of light or overshadowing (this isn't just a high wall – it means loss of light to the extent that you don't get enough natural daylight to see by). Overlooking/loss of privacy.

What are the planning considerations?

Among the characteristics that should be analyzed during planning, design, and construction are functional considerations, appropriate image and design, site selection, special access needs of the physically impaired, security, flexibility, and the effect of technology.