These designs are from a Northcrest booklet offered to potential purchasers in the late 50's early 60's by P&H Realty.
The intitial offering provided at least six designs (two traditional and four MCM) on 300 wooded lots. The available designs expanded to include additional styles such as A-Frames and unique houses through three additional phases.
This design is one of four multi-level Modern concepts provided by the builder during the first Northcrest building phase. As with most of the MCM floor plans, the house is divided into left-right halves, with stacked rooms on either the left or right and living/dining/kitchen on the opposite half. This design features a split gable, low elevation roof - a few have sliding glass doors open from one or both upstairs bedrooms to open onto a deck, which forms the carport roof. This style may have clerestory windows or at least windows that extend to the roofline above the sliding glass doors. Interior features are similar to those covered in Phase 1 Style 1. The main feature is the shape of the roof - One or both sides have a shed-roof as opposed to the gable-style roof in Phase 1 Style 1. It's my opinion that this style is an "in between" style, providing the roof features of Phase 1 Style 3, but with a full carport as in Phase 1 Style 1. This style also allows for better placement on sloping elevations with the carport extending off the bottom floor (Style 3 extends a single-car carport from the side of the building).
Examining the illustration, one can see that the upper floor has an exterior sliding glass door from the end bedroom, and railing to use the carport roof as a deck. I believe that this design was unpopular and ultimately abandoned for a more functional design as there are only a couple in the neighborhood that have this feature. A better design features two sliding glass doors opening from bedrooms to the carport roof/deck (I'm calling that style Phase 1 Style 7 - this was a style P&H had used in prior construction in various locations around Chamblee and is frequently seen in Northcrest East construction).
This style is on the low end according to the booklet with an unadjusted sales price of $21,850 ((the high-end was a Mid Century Modern listed for $24,600 - style 6 - and the low-end a contemporary at $19,750 - style 3).