If you are searching for Eichler floor plans, you are looking for something most real estate databases do not carry: the original architectural drawings produced by the firms that designed California's Eichler homes in the 1950s, 1960s, and early 1970s.

This guide covers what original Eichler floor plans are, which architects produced them, how the Eichler Vault Archive is organized, and how to find the plan that corresponds to your specific home.

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What an Original Eichler Floor Plan Actually Is

A modern real estate floor plan shows what a house looks like today. An original Eichler floor plan shows what was designed and built in the first place.

That distinction matters more than it might seem. Eichler homes have been remodeled, reconfigured, and altered over the past sixty years. Walls have been moved. Atriums have been enclosed. Kitchens have been opened. Glazing has been replaced. In many cases, the current interior no longer reflects the original design intent.

The original floor plan is the authoritative record of what the architect specified. It shows the room arrangement, dimensions, atrium or courtyard configuration, entry sequence, glazing locations, indoor-outdoor relationships, and structural logic of the house as it was conceived. For homeowners researching a restoration, buyers evaluating a property's integrity, or researchers documenting architectural history, the original plan is the primary reference.

Eichler homes were built from a relatively small number of recurring plan types, each assigned a model number by the architect. The same plan — or close variations of it — was built across multiple tracts and sometimes across multiple regions of California. Identifying the model number of a specific home connects it to the full body of documentation associated with that design.

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The Architects Behind the Plans

Joseph Eichler did not design the homes himself. He commissioned a series of architectural firms to develop the plans for his developments. Three firms produced the majority of the Eichler residential record.

Jones & Emmons

A. Quincy Jones and Frederick Emmons designed some of the most widely recognized Eichler plans. Their work spans the full range of Eichler residential architecture, from the early post-and-beam configurations to the mature atrium plans of the 1960s.

The Jones & Emmons archive includes plan numbers such as the E-31, OJ-1184, JE-84, JE-85, SM-100, SM-104, SM-114, SM-124, SM-223, Plan 943, Plan 1184, Plan 1224, and others. Each plan number corresponds to a specific design with defined room counts, square footage, and spatial arrangement.

Jones & Emmons Plan E-31. The court configuration, two-car garage, and multi-purpose room arrangement are characteristic of the Jones & Emmons mid-period Eichler design vocabulary.

The OJ-1184 is one of the most complete surviving Jones & Emmons plan sets in the Eichler Vault Archive. Drawn by A. Quincy Jones, FAIA, and Frederick E. Emmons, AIA, it documents a four-bedroom, two-bath home with a multipurpose room and a total of 2,556 square feet including garage and carport. The plan includes both the floor plan and an exterior elevation rendering — a rare combination that shows both the interior arrangement and the architectural character of the facade.

Plan OJ-1184 by A. Quincy Jones and Frederick E. Emmons. Living area: 2,060 sq ft. Garage: 285 sq ft. Carport: 213 sq ft. Total: 2,556 sq ft. The atrium, sliding doors, and bedroom wing arrangement are defining features of this plan.

Claude Oakland

Claude Oakland and Associates designed the later period of Eichler construction, including many of the Marin County developments and the Sunnyvale tracts built in the 1960s. Oakland's plans are known for their atrium configurations, gallery arrangements, and the double A-frame roof forms that became associated with the Fairpark and related Sunnyvale neighborhoods.

The Claude Oakland archive in the Eichler Vault includes plans such as the MS-134, Plan 554, Plan 574, Plan 584, Plan 1004, Plan 1605, Plan 1VC34, OC-584, S404A, S404C, CC-174, LA-174, FC-13, HPO-15, and others.

Anshen & Allen

Anshen & Allen produced the earliest Eichler plans, including the foundational designs that established the post-and-beam residential vocabulary that would define the Eichler program. Their work includes Plan 37, Plan 304, Plan 423, Plan 433, Plan 443, Plan 1544, and the E-11 series.

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Neighborhood Tract Plans: A Different Kind of Document

Individual floor plans show the design of the house. Neighborhood tract plans show how the houses were placed within the original development.

A tract plan — also called a plot plan or plat — documents the lots, streets, setbacks, orientations, and house placement within the neighborhood as it was originally laid out. For homeowners trying to understand the original configuration of a specific property, or researchers documenting the planning logic of an Eichler development, the tract plan is an essential companion to the individual floor plan.

The Eichler Vault Archive includes original tract plans for neighborhoods throughout California.

Marinwood Unit 5-H, Marin County

The Marinwood Unit 5-H tract plan, reproduced by the Marin County Abstract Company, documents the lot layout along Huckleberry Road, Appleberry Drive, and Greenberry Lane in San Rafael. The plan shows individual parcel numbers, lot dimensions, and the relationship between the residential lots and the surrounding county lands.

Marinwood Unit 5-H, County of Marin, California. Reproduced by Marin County Abstract Company. The handwritten annotations — including a Public Works Department contact and setback notes — are characteristic of working copies used during construction and permitting.

Lucas Valley Unit 8, Marin County