Outside Trello Tower.

Player not in control yet.

Fog.

Almost looks like it is snowing and Winter.

Graffiti.

Damaged sign that flashes a little.

Vincent Bliss's car (A Hearse)

Jay's car which he walks from, a sort of retro Government Sedan type vehicle.

Entrance Hallway -

Player is now given control.

only visited once.

disheveled.

stained.

Similar to silent hill 2 flats.

population sign.

rusted stairs, ascending up into darkness.

Rusty, slow elevator.

cramped other than when going up into the darkness.

Elevator 1 - 

Entered from the Entrance Hallway.

Graphite.

Rust.

Missing buttons.

Only entered once.

Level 8 Hallway- 

Entered upon exiting the lift.

Very similar to the entrance.

Dark.

Blocked off areas (especially later when the stairs collapse).

More ominous graffiti.

Level 8 connective corridor - 

Glass with brown stains.

Cracks.

A little bit like the tunnels connecting parts of Rapture in Bioshock.

Level 8 balcony walk way -

Long.

Distorted view of the city.

different belongings outside the various flats (plants, work boots maybe a bike)

use references images of council estates.

Flat 88 - 

dingey,

retro.

sort of early 2000s hacker/conspiracy guy vibes.

use silent hill ref image for size.

Level 9 Hallway - 

similar to before with different world building graffiti and details.

Level 10 Hallway -

similar to before with different world building graffiti and details.

Level 10 connective corridor - 

similar to before but with different crack shapes.

Perhaps a slight broken bit of window. 

Dead bird maybe.

Store Room.

Rusted and disused looking.

Three steel shelfs in a small cubic space.

Messy tool boxes etc.

Flat 106 - 

clean compared to 42.

Journalistic stuff around.

Plants.

Framed photos.

Notebooks. 

Framed news article on the wall (used for puzzle)

same shape as 88.

Flat 98 - 

Disgusting.

Rotting.

Looks like a serial killer lives there.

Mouldy food.

look at RE7 Baker house, Silent Hill 4 and also se7en.

Secret Room - 

Only access as an easter egg if a wall is knocked down by the hunter or player.

A ladder up to a small vent.

Bloody corpse of the maintenance officer.

Think the vents in Aliens.

Flat 97 - 

Couples home.

Nice vibes turned dark by violence.

eerily abandoned pet stuff.

Family pictures that appear intentionally damaged.

Level 9 Balcony Walkway - 

Same as the others with variations on outside items.

Level 9 Connective Corridor.

Same as others with variations in wear and tear and graffiti etc.

Level 11 Hallway - 

Similar to before but with a damaged maintenance sign.

Level 11 connective corridor - 

Same as before but by far the most unsettling and disheveled.

Level 11 Balcony Walk way - 

Similar to before but clearly designed with no public access in mind.

Maintenance room - 

Similar to the store room but with a metal desk and PC.

Dirty files.

Rust. 

Strange damaged trap door.

Trickle Down Room - 

Eldritch.

Mechanical.

Cyberpunk.

Look at Resident Evil 3 (original) final boss room for reference.

Hidden Elevator - 

Similar as before but more metallic and wirey.

Clearly not for public use.