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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureConstruction & Project ManagementWinterthurDahinden Heim Partner Architekten AG
Dahinden Heim Partner Architekten AG Logo
Verified· 4 sourcesTrust Score
Summary

About the company

The core activity of Dahinden Heim Partner Architekten AG (DHPA) is the planning and execution of architectural projects, including area developments, renovations, new constructions, monument preservation and general planning. The company also provides consulting services for building owners and is active in various fields, such as residential, service/industry, public buildings and area developments.

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Products & services

Industry:Construction & Project Management
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4.2/5

Dahinden Heim Partner Architekten AG

✓ Offered9
Design / Execution
All partial services from the initial design idea through all planning phases, including site supervision up to handover of keys; preliminary project, construction project, approval procedure, tendering, detailed design, execution and commissioning.
General Planning
Planning responsibility for larger or more complex construction projects; coordination of architects, civil engineers, specialist engineers and specialists as well as contract management with sub-designers according to SIA 112/2014.
Site Supervision / Cost Management
Site supervision to coordinate the work trades, ensure compliance with costs and schedules, and ongoing cost management including forecasts, cost reports and target-versus-actual comparisons.
Advising Clients
Advice regarding functional requirements, economic feasibility calculations, contract agreements, scheduling and financial planning, as well as project leadership on the client’s side and representation of the client.
Overall Service
Overall service model with builder responsibility for design and delivery, including cost and schedule guarantees; working in the team of an overall service provider with architectural services according to SIA 102/2014 or SIA 112/2014.
Architecture Competition
Participation in architecture competitions and study assignments for new builds, extensions and conversions; development of concepts and project developments with a focus on architecture and research.
Land Development
Development of building concepts for plots of land and sites, including project studies, consideration of building and zoning regulations, as well as district or design plan procedures.
Heritage Conservation
Analysis, condition reports and rehabilitation concepts for listed historic building fabric; inventory survey, structural and building services analysis, renovation concepts and protective measures.
Expert Reports / Appraisals
Expert and appraisal services for disputes, construction defects and unclear contractual issues in the construction sector; support as a specialist service also for third parties.
Trust & reputation

ranQ Trust Score of Dahinden Heim Partner Architekten AG: 4.2 out of 5.0

Trust Score4.2/ 5.0

Very high

x

Data basis 100% · As of October 2026

Dahinden Heim Partner Architekten AG scores 71.3 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
x
CriterionValueWeight
  • Review quality: The average rating across all connected sources, smoothed against the industry mean. So 5.0 stars from three reviews do not outrank 4.7 from three hundred.79.424%
  • Review volume: The number of reviews across all sources. The scale is logarithmic: the first reviews count the most, and the maximum is reached at 50 reviews.52.910%
  • Review recency: The age of the most recent review. Two-year-old reviews deliberately sit in the middle, because that is normal for Swiss SMEs. Only after three years without a new voice does the value drop markedly.70.08%
Dahinden Heim Partner Architekten AG scores 92.3 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
x
CriterionValueWeight
  • Establishment: Years since founding or brand launch, logarithmic. The maximum is reached at 15 years.100.012%
  • 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.82.07%
Dahinden Heim Partner Architekten AG scores 86.7 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).86.722%
Dahinden Heim Partner Architekten AG scores 25.7 out of 100 points in the Visibility area of the ranQ Trust Score. This area carries 8% of the weighting.
x
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 35.51.44%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.0.04%
Qualifications+0.00

Dahinden Heim Partner Architekten AG reaches a ranQ Trust Score of 4.2 out of 5.0 — rated «Very high». The rating draws, among other things, on 5.0 out of 5 stars from 7 customer reviews. As of October 2026.

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

Reviews

Aggregated rating

Aggregated rating
5
of 5

Aggregated from 7 reviews across all connected sources

Sources
GGoogle57
★TrustpilotSoon
PProvenExpertSoon

Further sources are added continuously and factored into the ranQ Rating.

Press

Media

July 9, 2026Media
Geschäftshaus Vitodata AG Dahinden Heim Partner Architekten AG (DHPA)
swiss-architects.com
May 17, 2026Media
Patiohäuser Goldenberg Dahinden Heim Partner Architekten AG (DHPA)
swiss-architects.com
July 12, 2012Media
Wohnüberbauung MAX
swiss-architects.com

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Location

St. Gallerstrasse 45
8400 Winterthur

At a glance

Legal form
Corporation
UID
CHE-100.086.410
Founded
1996 · 30 years
Last commercial register change
July 5, 2024
Employees
21 to 50
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.100.06%
  • Branch offices: Branch offices linked in the commercial register. Having none is normal and costs no points.70.03%
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