Increased development of high density housing in Plumstead Township is the result of the 2001 zoning change. Plumstead rezoned dozens of properties, representing hundreds of acres, for townhouses, apartment buildings, condominiums and single house subdivisions. Although they were presented as a "Step toward our Preservation Goals" by Plumstead... 

The changes were “inconsistent with a preservation oriented township”.
         The Governors Center for Local Government, Harrisburg, PA 

"Plumstead has provided enough land and opportunity for multifamily housing to meet its fair share”. 
          Bucks County Planning Commission Chairwoman Lynn Bush 
         testifying in a 1998 Bucks County Court lawsuit won by Plumstead

Plumstead has already "approved more than the projected number of multi-family units 
needed through the year 2015 according to forecasts and population projections". 
         The Delaware Valley Regional Planning Commission  
         (in a report prior to the 2001 zoning change) 
                                    
No land owner, resident, or developer asked or sued for these changes.
       Plumstead Township responding to a request for this public information 

Increasing zoning potential created both an un-proportionately high real estate value on these properties and higher taxes. The majority of the properties were under contact for development within months.

Development density was lowered on other properties. However, except for one exception, the properties lowered in density could not be sub-divided into housing developments or had little potentional for development.  Representing no preservation benefits, they represented the loss of ‘credit’ for the higher density zoning, when it was lowered.
 
Zoning was lowered on preserved farmland, properties already subdivided, properties under contract for development, and on land which can not be subdivided; flag lots, narrow lots, and properties with power lines or gas lines running through them.

The zoning change also increased the building envelope on land in the Resource Protected (RP) area of the township by 250%. And the maximum square foot restriction for building foot prints was eliminated  allowing for bigger houses and more development of the site.