Dave Graffam Models have released a 28mm/30mm Widow’s House paper terrain kit.
From their announcement:
This is my latest release, the Widow’s House 28mm/30mm paper model. It’s my first fantasy/medieval model with fully-textured interiors (not counting my ruins). This model includes tons of texture layers, so this one download will set you well on your way to creating an entire town or village — with no two buildings looking exactly alike.