From 2011, some creator sets include a minifig and also more variety than just standard houses, including lighthouses, log cabins, tree houses and shops. This turns it into one of the most exciting and collectible lines, with minifigs, multiple instructions and relatively sophisticated builds.
Over the years this has expanded to include various vehicles alongside the buildings, and a subtheme of buildings with matching footpaths that appear to be a cheaper alternative to the expensive Modular Building range. The latest development is a series of 'modular' buildings made up of smaller components that can be interchanged between sets. (while these might offer a new play experience, this writer prefers the older style of more cohesive buildings)
NOTE: Does not include Modular Buildings or other special sets that have been included into the Creator theme, specifically those with only one build.
This list is actively being updated and was last updated Nov 2017. Please email me if I've missed something, or to remind me to maintain the list if there are new sets that match this criteria! Dave

This is the offical list of all the Modular buildings, to date. This will be updated to contain future modular buildings.

Lego started its line of Modular Buildings in 2007, and has kept them coming since. The buildings all can be connected together to create a very nice and active street.

These building would be great for your LEGO town or city and if you want all of them, this list might help you!

List of all the Lego Expert Modular Buildings.

Mini modular from creator 3 in 1 and released in 2017 and 2018

Compare the modular buildings to each other.

Sets in the "3 in 1" line. More satisfying than the city sets, cheaper than the Modular Buildings, more range than the Winter Village, less eye jarring color than Friends.

This list contains micro-scale modular buildings sets from 2012 and 2014 (TRU exclusive) and one set which is related with these.

Small and inexpensive Creator sets that can be connected together similar to the modular buildings.

LEGO Designer Morten calls these smaller LEGO Creator sets as the "little brothers" of the LEGO Modular Buildings. They can be used with their big brothers either as they are, or with some modification.

2007-now

This list includes the official Modular buildings from the Advanced Models, Creator Expert and Icons Sub-themes, as well as other modular-type LEGO sets

Only "City" sets (2005-). Sets like Modular Buildings, Town Plan or licensed like 4999 aren't included on this list. The list was too long, so I split it into two.

A collection of all the modular type Ninjago buildings.