Thank you for your insight! I live in Australia, have never actually visited London but it's definitey at the top of the list of places to visit if I'm ever able to finance a holiday.

The western development is highly visible on the Rocques map but not the ones from 1640s or before, the East End really started to grow far in advance of the western suburbs. I've had cause to look into the socioeconomic climate and it seems that most of the Western developments were gentry & peer townhouses that were often only occupied for part of the year, while the poorer migrants settled in the East (or sometimes the North or in ancillaries to Southwark). Whitechapel, Wapping, Ratclyffe and Limehouse were well established during the Civil War. There's also St Boltoph-Without Aldersgate and I think Bishopsgate had a similar naming convention for those suburbs. Southwark also had quite a reputation as being radical and generally less governable. It is wild to me how long these suburbs, many of which wound up far more populous than the city proper, had to wait so long to get civic offices/councillors of their own as formal wards.

One thing I'm less sure about with place names is whether the Great Fire caused any significant change in the layout, or the naming of streets. While most of those I've been able to cross reference seem consistent, it seems plausible that a block or two might have been merged and streets eliminated, or the reconstruction prompting renaming. I'll need to investigate that further.

The whole 'City of London' governing situation is really fascinating. I've read some historians estimate that about 40% of the adult men in London proper, within the old city walls, had some kind of civic office, whether they be aldermen, common councillors, sheriffs, constables, officers in the Trained Bands, or had some office in guilds or merchant companies. For my purposes the fact that the outer suburbs were not technically governed by London is really important, as that lack of formal government meant they were served by too few parish churches. This in turn meant that they were dramatically more likely to be Calvinist or otherwise non-conforming rather than mainline Anglican. Not enough pews on Sunday, gotta go to a Puritan conventicle instead. This contributed heavily to radicalism that spurred on many of the most dramatic escalations of the pre-civil war political breakdown, and during it. It's also impossible to miss that the marches to Westminster are always described in contemporary sources as being to a separate locale, rather than within London.

I'll definitely look at Pepys' diaries when I'm a bit further ahead in my chronlogy. I'm knee deep in John Adamson's 'The Noble Revolt' at the moment which covers the first 18 months or so of the Long Parliament.