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Second Opinion


Objection to a building permit in Switzerland: deadlines, costs, appeals
Objection to a building permit in Switzerland: deadlines of 14 to 30 days by canton, costs and appeal stages. And why Zurich has no objection procedure.

Simon Käslin
2 days ago12 min read


Construction cost control in Switzerland: avoiding variations and additional costs
Construction cost control in Switzerland: how private clients avoid variations during the build, with a sound contract, a reserve and ongoing cost tracking.

Simon Käslin
Jul 186 min read


Client representation general contractor: your interests on the construction site
Client representation general contractor: what it delivers, what it costs and how it differs from owner's advisory. For private clients in Switzerland.

Simon Käslin
Jul 186 min read


Architect contract in Switzerland: SIA 102 fees explained
How the architect's fee is calculated under SIA 102, what the architect contract in Switzerland covers and what clients should check. With benchmarks.

Simon Käslin
Jul 17 min read


Architect cost estimate in Switzerland: accuracy, tolerance and liability
How binding is an architect cost estimate in Switzerland? Tolerances under SIA 102, when the architect is liable for cost overruns and what exceptions apply.

Simon Käslin
Jul 18 min read


Construction contract review in Switzerland: what to check
Construction contract and building specifications reviewed before signing: what private clients in Switzerland should look out for, typical pitfalls, and what SIA 118 regulates.

Simon Käslin
Jul 17 min read


Second opinion in architecture: when it makes sense, what it delivers and what it costs in Switzerland
Second opinion in architecture in Switzerland: when it makes sense, how it works and what it costs. An objective guide for private clients.

Simon Käslin
Jan 126 min read


Floor plan second opinion: why an independent view is decisive
Floor plan second opinion: independent analysis for better use, clear routines and more living quality. Review it early, before the plan is fixed.

Simon Käslin
Jan 126 min read


Feasibility and volume study in Switzerland: what private building owners need to know
Feasibility and volume study in Switzerland: content, costs, process, risks and quality criteria. For single and multi-family houses, clearly explained.

Simon Käslin
Jan 414 min read


What does it cost to build a house in Switzerland? (Calculating the full budget)
Cost to build a house in Switzerland: the full budget with construction costs, ancillary costs, m³ logic, reserve and a traceable example calculation.

Simon Käslin
Jan 28 min read


Building permit duration in Switzerland: 140 to 230 days
Building permit duration in Switzerland: 140 to 230 days on average. Current figures for ZH, AG, SZ and SG and what speeds up the procedure.

Simon Käslin
Aug 3, 20258 min read
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