Duplex Units on Individual Lots
These are duplex developments for 2-acre sites. Each unit is solar oriented and has a sizable back yard.
Common driveways are not practical for these sites because they would not allow enough units. They would be practical for sites that are unusually wide.
East or west entry
The hammerhead cul-de-sac development has a common area, which might be required by the zoning ordinance. The goosehead and bulbhead cul-de-sac developments have no common, and use the space to substitute detached houses for some of the duplex units.
Goosehead cul-de-sac, twelve units
Hammerhead cul-de-sac, twelve units
Bulbhead cul-de-sac, twelve units
North or south entry
Narrow sites with a north or south entry cannot be efficiently solar oriented because too much space is required for setbacks. For sites that receive little sun, solar orientation is unimportant and the site plans with east or west entry can be used for north or south entry.
The plan shown has no private driveways from the abutting street. If the zoning ordinance allows such driveways, units with front-entry attached garages can be used on the front lots.
A hammerhead cul-de-sac works better than a goosehead or bulbhead cul-de-sac because it can be stretched to conform to the site.
Hammerhead cul-de-sac, twelve units
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Leonard Azar, 309 Oxford Street, Brookings, OR 97415, (541) 469-2429, e-mail.