Houston has used incremental infill with townhouses (in the Eugene code, rowhouses) to help add housing that is comparatively affordable without sprawling as much
Fixing the mistakes of the past
Must read about the history of Zoning
For anyone wondering how we got to where we are, this Strong Towns article is a must-read.
Saving Affordable Housing
Zoning as discrimination
The arguments used support restrictive zoning, such as the impact of new development on traffic, wouldn't hold up to scrutiny.
Living and Working differently
Giving breaks to those with the most for housing
How much does it cost to build affordable housing?
This pretty impressive web tool from the Urban Institute shows how difficult it is to make larger affordable housing projects pencil out.