There are 180 or so early 50's Eichlers are located on Alvin St, Victory Ave, Richard Ct, Benjamin Dr, Emmons Dr, Quincy Dr, Nedson Ct, Thaddeus Dr and Thompson Ave.  These are not large homes, they are all 3 BR/2 BA 1116 sq ft homes and the floorplans don't vary much in the whole tract.  All have 3 bedrooms in a row on one side of the house.  I have heard people say that this isn't really an Eichler tract because it wasn't built by Eichler Archetects. I have to disagree based not on documented proof but on some of the attributes of these houses.  These houses have back walls of glass, radiant heat, phillipine mahogany panelling, and a wall between the kitchen and living room that doesn't go all the way to the ceiling, four of the definining characteristics of Eichler homes.  Since there is a street called "Emmons Drive" in this tract, I have a feeling these houses were designed by the Jones and Emmons Archetect firm.

This neighborhood is called "Monta Loma" and is a nice area of Mountain View close to the Palo Alto-Mountain View border.  The neighborhood is almost all one-story flat-top single family houses.  The neighborhood also has homes built by Mackay Homes and Mardell Homes which are very similar to the Eichler homes in the area.  Monta Loma is bordered by Central Expressway to the west, San Antonio Road to the north, Middlefield Road to the east and Rengstorff Ave to the south.  The map of this area is below.
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There are 2 groups of Eichler homes in Mountain View.  One tract from the early 50s and one tract from the early 70s.
On the west side of El Camino in Mountain View there are 52 late Claude Oakland-designed Eichlers on Eichler Drive, Eichler Court, Trophy Drive and Miramonte Avenue.  These houses have a variety of layouts.  Some are the "double peaked atriums", some have an interesting roof that goes up away from the front door, some are flat roofed, and some have sloped "shed" roof.  These houses are bigger and more expensive than the Monta Loma Eichlers and their neighborhood is very well kept.  Below is a photo of that tract:
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