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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureArchitecture FirmsZurichDENKMALWERKSTATT - Büro für Denkmalpflege und Baugeschichte GmbH
DENKMALWERKSTATT - Büro für Denkmalpflege und Baugeschichte GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of DENKMALWERKSTATT is monument preservation and building history, particularly in the planning, analysis, documentation, research and implementation of high-quality, sustainable architecture and historic buildings. The company is dedicated to preserving cultural heritage in the form of buildings, gardens and other historic sites, and offers services such as creating inventories and expert opinions, developing room books and building documentation.

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Products & services

Industry:Architecture Firms
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3.8/5

DENKMALWERKSTATT - Büro für Denkmalpflege und Baugeschichte GmbH

✓ Offered12
Architecture and heritage preservation
Renovations, conversions, refurbishments and restorations of properties in a historical context; planning and implementation in dialogue with clients and authorities, including feasibility studies, advice and damage mapping.
Building history
Inventories, expert reports on heritage value, condition assessments, building research, building documentation and room books for historic buildings, townscapes, garden facilities and urban structures.
Client advisory and client representation
Support for construction projects from planning through completion; representation of interests vis-à-vis architects, authorities and other stakeholders.
Heritage construction advisory
Advisory services for authorities on listed and protected properties as well as historic gardens; from individual consultations to extensive mandates, including assuming the duties of a heritage preservation specialist office.
Feasibility studies
Clarification of heritage-related and building-regulatory conditions for reuse or conversion of historic buildings; analyses as a basis for the decision on whether and how to proceed.
Damage mapping
Identification, localisation and graphic-photographic representation of damage as a basis for restoration work, cost estimation and proposed solutions; in four investigation stages.
Inventories
Identification and scientific evaluation of source holdings as a basis for protective measures for individual objects, ensembles, townscapes and garden facilities.
Expert reports on heritage value
Clarifications of heritage value for individual buildings, urban planning ensembles and historic gardens; including source research, site visits, photo documentation and scope of protection.
Garden heritage conservation
Expert reports on the heritage value of historic garden facilities for municipalities, cantons or private clients; including scientific assessment, recommendations and graphic representation of the scope of protection.
Condition assessments
Assessment of the state of preservation of buildings, building components, historic surfaces and timber structures; proposed measures derived from this for the next steps.
Building research
Source research on the construction history of historic buildings, including construction phase plans and additional concepts such as feasibility studies.
Building documentation
Documentation of buildings before, during and after renovations with photos, reports, plans, material lists and documents relating to completed work.
Trust & reputation

ranQ Trust Score of DENKMALWERKSTATT - Büro für Denkmalpflege und Baugeschichte GmbH: 3.8 out of 5.0

Trust Score3.8/ 5.0

High

x

Data basis 96% · As of October 2026

DENKMALWERKSTATT - Büro für Denkmalpflege und Baugeschichte GmbH scores 54.9 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
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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.58.124%
  • 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.35.310%
  • 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%
DENKMALWERKSTATT - Büro für Denkmalpflege und Baugeschichte GmbH scores 74.1 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.79.212%
  • 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%
DENKMALWERKSTATT - Büro für Denkmalpflege und Baugeschichte GmbH scores 85.0 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).85.022%
DENKMALWERKSTATT - Büro für Denkmalpflege und Baugeschichte GmbH scores 17.1 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 35.17.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

DENKMALWERKSTATT - Büro für Denkmalpflege und Baugeschichte GmbH reaches a ranQ Trust Score of 3.8 out of 5.0 — rated «High». The rating draws, among other things, on 3.7 out of 5 stars from 3 customer reviews. The data basis is 96%, 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.

Reviews

Aggregated rating

Aggregated rating
3.7
of 5

Aggregated from 3 reviews across all connected sources

Sources
GGoogle3.73
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Rennweg 23
8001 Zurich
Opening hours
Mon
08:00 - 17:00
Tue
08:00 - 17:00
Wed
08:00 - 17:00
Thu
08:00 - 17:00
Fri
08:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-356.181.524
Founded
2018 · 8 years
Last commercial register change
March 10, 2025
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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