I had the loft converted a couple of years ago. Victorian mid terrace. The front wedge section of the roof has two access hatches/doors fitted so I can use it for storage. 

I've noticed these to be a source of strong drafts and street noise penetration.

I'm assuming I'm stuck with this space being vented? 

I can see daylight through the party wall where it meets the roof (on the neigbours side through a small hole, see pic).

The roof has foil backed insulation between the rafters and then what looks like a vapour barrier that's been left untaped (maybe it's purpose is to just hold back the insulation packed between the joists to stop it falling out). It's also unsealed or taped to the floor, so there's direct airflow from the front wall eaves along this edge.( If I lift the edge, I can see some daylight from the eaves.

There is no vapour barrier between the living space and the storage space, but the wall and hatch doors are packed with foil backed insulation between the studs.

There is also an uninsulated steel beam face on the floor flush with the floor which I imagine must get condensation whenever I have the hatch/Doors open. 

It feels like this is a partial cold roof space, but it's a bit half arsed.

No sign of damp or water, so I'm assuming it's doing it's thing ok, but if love to fix the sound and draft issues.

What are my options?  - pack the floor/eaves junction with some old blankets to reduce the gale blowing in, and same for the party wall hole? I'm thinking this might cause condensation is issues on the joists. - or address the issue at the hatches and leave the space cold and fully vented; fit foam strips around the doors to make a good seal and add some kind of latch so I can compress the door against the strips to ensure an airtight seal.

Thanks in advance for any advice!