If you are thinking about objecting to a Planning Application it is important to stick to these Material Considerations. You should back up your objection with reliable studies and/or data.
Anyway, this is what you need to focus on. (Taken from the UK Planning Portal).
A material consideration is a matter that should be taken into account in deciding a planning application or on an appeal against a planning decision.
Material considerations can include (but are not limited to):
- Overlooking/loss of privacy
- Loss of light or overshadowing
- Highway safety
- Effect on listed building and conservation area
- Layout and density of building
- Design, appearance and materials
- Government policy
- Disabled persons’ access
- Proposals in the Development Plan
- Previous planning decisions (including appeal decisions)
- Nature conservation
However, issues such as loss of view, or negative effect on the value of properties are not material considerations.