Someone listed the criteria when this all came up, I couldn't see any reasons that applied.
Yes, the what can/can't be considered are -
Reasons that would be considered:
Loss of light or overshadowing
Overlooking/loss of privacy
Visual amenity (but not loss of private view)
Adequacy of parking/loading/turning
Highway safety
Traffic generation
Noise and disturbance resulting from use
Hazardous materials
Smells
Loss of trees
Effect on listed building and conservation area
Layout and density of building
Design, appearance and materials
Landscaping
Road access
Local, strategic, regional and national planning policies
Government circulars, orders and statutory instruments
Disabled persons' access
Compensation and awards of costs against the Council at public enquiries
Proposals in the Development Plan
Previous planning decisions (including appeal decisions)
Nature conservation
Archaeology
Solar panels
Those that won't be considered:
The perceived loss of property value
Private disputes between neighbours
The loss of a view
The impact of construction work or competition between firms
Restrictive covenants
Ownerships disputes over rights of way
Fence lines etc
Personal morals or views about the applicant.