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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,952 companies indexed · Last updated: today
DirectoryReal EstateReal estate agentSiebnenHoldener Bauplanung GmbH
Holdener Bauplanung GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Holdener Bauplanung GmbH plans and manages construction projects, providing architectural services, construction and project management, and timber construction planning. Its projects include single- and multi-family homes, agricultural and commercial buildings, extensions, conversions and renovations.

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Service area

Offering

Products & services

Industry:Real estate agent
✓ Offered5
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Holdener Bauplanung GmbH

Architecture
Planning and execution of single- and multi-family homes, agricultural buildings, commercial buildings as well as extensions and conversions, renovations and refurbishments; consulting and support from the idea through to handover.
Construction and project management
Management of construction and execution planning for small to large construction projects; coordination and control up to acceptance, client advisory services as well as schedule and cost monitoring.
Timber construction planning
Planning of timber construction projects from project planning through to workshop/detail planning, including cost estimation, contract award, construction contract, site inspections, and review of measurements and final invoicing.
3D visualization
Representation of building projects as three-dimensional design models with CAD from different interior and exterior perspectives; usable for planning, decision-making, sales materials and construction documentation.
Real estate brokerage
Buying and renting of properties on request; interested parties should contact the company directly if they are interested in buying or renting.
Trust & reputation

ranQ Trust Score of Holdener Bauplanung GmbH: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

x

Data basis 96% · As of November 2026

Holdener Bauplanung GmbH scores 52.5 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.54.224%
  • 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.27.910%
  • 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.78.08%
Holdener Bauplanung GmbH scores 83.0 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.55.07%
Holdener Bauplanung GmbH scores 86.7 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
x
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%
Holdener Bauplanung GmbH scores 3.4 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 35.3.44%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Holdener Bauplanung GmbH reaches a ranQ Trust Score of 3.9 out of 5.0 — rated «High». The rating draws, among other things, on 3.0 out of 5 stars from 2 customer reviews. The data basis is 96%, so the score is backed by part of the criteria. As of November 2026.

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

Reviews

Aggregated rating

Aggregated rating
3
of 5

Aggregated from 2 reviews across all connected sources

Sources
GGoogle32
★TrustpilotSoon
PProvenExpertSoon

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

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Comparisons

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Location

Mühlestrasse 31a
8854 Siebnen
Opening hours
Mon
08:00 - 11:45, 13:30 - 17:00
Tue
08:00 - 11:45, 13:30 - 17:00
Wed
08:00 - 11:45, 13:30 - 17:00
Thu
08:00 - 11:45, 13:30 - 17:00
Fri
08:00 - 11:45, 13:30 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-114.400.961
Founded
2008 · 18 years
Last commercial register change
September 30, 2015
Employees
1 to 10

Active in 1 of 26 cantons · 1 municipality

  • SZSchübelbach
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.
88.0
6%
  • 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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