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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureArchitecture FirmsThalwilkopetschny birchler architekten gmbh
kopetschny birchler architekten gmbh Logo
Verified· 2 sourcesTrust Score
Summary

About the company

kopetschny birchler architekten gmbh is an architectural firm offering planning services such as feasibility studies, design, building-permit documentation and execution planning. The practice works on new-build and renovation projects and coordinates with specialist planners during project realization.

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Products & services

Industry:Architecture Firms
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kopetschny birchler architekten gmbh

✓ Offered8
Feasibility studies
Technical, legal and economic clarifications prior to the project start; analysis of the site, building regulations and cost range, including an assessment of opportunities and risks as well as alternatives.
Design and construction project
Development of floor plans, room functions and building concepts; architectural planning using sustainable materials and aligned with client wishes and budget.
Building permit and detailed studies
Preparation of documents, plans and submissions for the building permit; coordination with authorities and specialist planners as well as technical detailed studies.
Implementation and construction planning
Construction drawings, detailed documents and technical specifications for implementation on the construction site; collaboration with specialised partners for construction management.
New multi-family house construction
New-build projects for multi-family houses, including in Thalwil; references show several corresponding residential construction projects.
New single-family house construction
New-build single-family houses at various locations; references confirm several new residential buildings.
Conversion and renovation of residential buildings
Conversion and full renovation of residential houses and multi-family houses; includes apartment conversions, kitchen renovations and residential upgrades.
Conversion of office and public buildings
Conversion projects for offices as well as public or social buildings, including office, assisted-living and nursing-home conversions.
Trust & reputation

ranQ Trust Score of kopetschny birchler architekten gmbh: 3.7 out of 5.0

Trust Score3.7/ 5.0

Solid

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Data basis 54% · As of October 2026

kopetschny birchler architekten gmbh has no value in the Reputation area of the ranQ Trust Score because no data is available. The area carries 42% of the weighting and drops out of the calculation for this profile; it does not lower the score, only the reported data basis.
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CriterionValueWeight
  • Review quality: No data point — the criterion is taken out of the weighting and does not lower the score.—24%
  • Review volume: No data point — the criterion is taken out of the weighting and does not lower the score.—10%
  • Review recency: No data point — the criterion is taken out of the weighting and does not lower the score.—8%
kopetschny birchler architekten gmbh scores 57.1 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
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CriterionValueWeight
  • Establishment: Years since founding or brand launch, logarithmic. The maximum is reached at 15 years.39.612%
  • Company size: The headcount band, researched by ranQ or stated by the company. It is scored in steps rather than by head count, because the data only provides bands.55.07%
kopetschny birchler architekten gmbh scores 83.3 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
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CriterionValueWeight
  • Verification: Official register entry (commercial register with UID or professional-body record, 55 points), confirmed domain (20 points) and confirmed ranQ profile (up to 25 points, depending on completeness).83.322%
kopetschny birchler architekten gmbh scores 2.9 out of 100 points in the Visibility area of the ranQ Trust Score. This area carries 8% of the weighting.
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CriterionValueWeight
  • Website authority: Ahrefs' Domain Rating measures, on a scale of 0 to 100, how strongly a website is linked from other websites. For Swiss SMEs the range up to 40 is typical; the maximum is reached at 35.2.94%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

kopetschny birchler architekten gmbh reaches a ranQ Trust Score of 3.7 out of 5.0 — rated «Solid». No public customer reviews are available for this provider; the rating is based on the remaining criteria. The data basis is 54%, so the score is backed by part of the criteria. As of October 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

Knowledge

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Location

Seestrasse 97
8800 Thalwil

At a glance

Legal form
Limited Liability Company
UID
CHE-258.560.599
Founded
2024 · 2 years
Last commercial register change
July 12, 2024
Employees
1 to 10
Legal form: Graded by liability and disclosure. The weight is kept small: a sole proprietorship is not a dubious company, it is just liable differently.88.06%
  • Branch offices: Branch offices linked in the commercial register. Having none is normal and costs no points.70.03%
    • Full methodology

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