ONN Architects
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CZEN
03 · Cultural and historic buildings

History
with a future

We bring historic buildings back to life, providing local architectural expertise for international practices, knowledge of grant programmes and a considered approach to heritage liaison.

Specialisation

Local
knowledge,
global inspiration

We collaborate with Czech and international studios. Our work on heritage buildings combines international inspiration with an understanding of the Czech context, from liaison with the National Heritage Institute (NPÚ) and grant documentation to coordination with local craftspeople.

We take a structured approach to project preparation, engaging with the relevant authorities early to eliminate delays. When a French practice designs a chateau project, we manage every step between its concept design and the building permit.

CZK 610 million

Construction costs of projects in our portfolio

February 2024

Building permit for KKC Žďár – co-author of the design with the French studio INCA

NPÚ · grants · international practices

Our areas of expertise

What we do

Sensitive intervention,
clear process

01

Heritage liaison

Proactive liaison with the National Heritage Institute and local conservation officers from the concept stage, well before the building permit application.

02

Local architect

We manage design documentation, technical studies and building permit applications for Czech and international practices.

03

Grant support

Experience in delivering grant-funded projects, from the initial application to final financial reporting.

04

Surveys & subcontractors

Historic building and technical surveys carried out by trusted specialists.

Selected projects

Project portfolio

Three projects: the conversion of the convent at Žďár Chateau in collaboration with French practice INCA architectes; the restoration of the chateau and fortress in Kestřany, South Bohemia; and the transformation of the Circular Hall at the Czech University of Life Sciences.

Žďár Cultural and Creative Centre – the convent with its copper roof, aerial view

Cultural and Creative Centre
Žďár nad Sázavou Chateau

Conversion of a Baroque convent into a cultural and creative centre.

Investor
Kinský Žďár z.s.
Cost
CZK 190 million
Size
~3,500 m² GFA
Architectural design
INCA architectes (France) in collaboration with ONN Architects
ONN’s role
Co-author of the design, local architect, lead design consultant, approvals management, design supervision
Permit
Building permit obtained February 2024
Stage
Combined zoning and building permit, construction documentation, approvals management, design supervision
Completion
December 2025
Kestřany chateau and fortress

Kestřany
chateau & fortress

Documentation of project amendments and design supervision for the restoration of a chateau complex in South Bohemia, in collaboration with Talaša Kutěj architekti.

Cost
Estimated CZK 200 million
In collaboration with
Talaša Kutěj architekti s.r.o.
ONN’s role
Documentation of project amendments, design supervision
Kruháč ČZU – exterior

Kruháč ČZU

Transformation of the Circular Hall on the Czech University of Life Sciences campus into a modern multifunctional building.

Investor
Czech University of Life Sciences
Cost
~CZK 220 million excl. VAT
Timeline
2025
Role
Architecture
Gallery

More projects

Žďár Cultural and Creative Centre – the convent and garden Žďár Cultural and Creative Centre – vaulted corridor Žďár Cultural and Creative Centre – vaulted hall with fragments of murals Žďár Cultural and Creative Centre – exhibition hall Žďár Cultural and Creative Centre – attic hall Žďár Cultural and Creative Centre – ramp Conversion of a historic building – courtyard Conversion of a historic building – arcade in the courtyard Žďár Cultural and Creative Centre – convent façade Žďár Cultural and Creative Centre – hall Žďár Cultural and Creative Centre – vaulted hall Žďár Cultural and Creative Centre – exhibition hall Žďár Cultural and Creative Centre – exhibition hall with a circular desk Žďár Cultural and Creative Centre – staircase Žďár Cultural and Creative Centre – terrace by the copper roof Kestřany chateau & fortress – visualisation Kestřany chateau & fortress – visualisation Conversion of a historic building – garden Kruháč ČZU – interior Kruháč ČZU – exterior Conversion of a historic building – street view

Planning to restore
a historic building?

We can help with heritage liaison, grant documentation and the entire approvals process, bringing experience gained from one chateau project to the next.

Get in touch