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2026

Preliminary design for a single-family home in the Zurich Oberland region of Zurich

Preliminary design

"A plot of land is just a promise. What makes it a home is the house."
Preliminary design for a single-family house in the Zurich Oberland region with a comparison of variants and a massing study

PHASE

Preliminary design

SERVICE

Architektur

DURATION

10 weeks

READING TIME

4-minute read

The concern

I own a plot of land, but I don't have a picture of the house.

What we did

Site analysis, three variants, preliminary design for the chosen one.

What was the goal?

Preliminary design that the owner understood.

What was the initial situation?

A plot of land is initially just a promise. What transforms it into a home is the house built on it, one that suits the people who will live in it. The owners knew their building site well but didn't yet have a concrete vision of what the house should look like and how it should function.

Three variants, three main focuses. For the first time, we were able to truly compare them.

Owner: Zurich Oberland region

What have we accomplished?

I proceeded in three stages. First, the site analysis with a view to building regulations, topography, development, views and privacy; then a massing study with three comparable variants that took into account different living preferences and orientations; and finally the preliminary design as a clear basis for the next step.

What was the result?

In the end, the owner not only had plans, but a decision they understood, and a plan that would allow them to confidently move into the next phase.

Own the land, but don't yet know where to buy a house?

I will create three comparable options and a preliminary design based on your wishes.

eigenheimwissen.ch, the companion knowledge platform by raumwert plus

Free initial consultation, approx. 30 minutes. Identify risks associated with authorities early on.

Simon Käslin, SIA-certified architect and owner's construction advisor in Uster
This is how the collaboration went
01

Get to know

Discuss the property, wishes and general conditions together.

02

Site and zoning analysis

Record and classify building regulations, topography and development.

03

Massing study

Develop and compare three variants with clear focus areas.

04

Preliminary design

Prepare floor plans, sections and views for the chosen variant.

05

Diploma

Complete preliminary design handed over, next phase initiated.

Plain text from the project
The preliminary design is the most cost-effective phase for reconciling wishes with building regulations.
What was the added value for the customer?

clarity

They know what the property is truly capable of.

Variant comparison

Three variants with clear focuses.

Reliable preliminary design

Basis for the next phase.

From wish to planning

A smooth transition into the planning phase.

Own the land, but don't yet know where to buy a house?

I will create three comparable options and a preliminary design based on your wishes.

eigenheimwissen.ch, the companion knowledge platform by raumwert plus

Free initial consultation, approx. 30 minutes. Identify risks associated with authorities early on.

Simon Käslin, SIA-certified architect and owner's construction advisor in Uster
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