Architecture and development management
in one integrated team.
Connecting good people and good ideas. We manage projects from the initial feasibility review through to completion – with full control of risk, cost, and time.
Explore how we workOur DNA
ONN Group is built on five core principles. They define how we think about projects, how we manage them, and what long-term value we create for investors and partners. These are the principles by which we actually run every project.
We create projects that make sense for both the location and the market. Every project begins with a thorough analysis of the site, its economic context, and long-term investment potential. We go beyond architectural form. We design solutions that are functional, economically defensible, and sustainable over time.
We manage the project from due diligence through to final approval. Every step has a clear structure, defined responsibilities, and control points. We run projects systematically and predictably. We actively manage risks and monitor schedule and budget. Transparent reporting gives investors ongoing visibility and confidence at every stage.
Documentation and coordination with no surprises on site. Detail matters. Precise project preparation and thorough coordination across all disciplines minimises cost overruns, delays, and interpretation gaps during construction. The result is smooth execution and control over budget and schedule.
We do not act as a single-phase contractor, but as a long-term partner. We take responsibility for the whole – from the first decision to the final outcome. Communication is direct, open, and built on trust. One point of contact. Clear accountability. Transparent reporting.
We treat sustainability as part of project economics, not as a marketing term. We use innovation as an efficiency tool. Materials, technologies, and processes are evaluated by their return, impact on operating costs, and long-term project value. Sustainability makes sense when it follows economic logic.
Two specialisations. One team.
Architecture and project management within a single coordinated framework – with no gaps between disciplines.
ONN
Development
The core division focused on comprehensive development management – from acquisition and feasibility review through the permitting process to contractor selection and construction.
ONN
Architects
Architecture with economic and process logic built in. We design buildings that hold up in the reality of permitting, budgeting, and construction – with respect for context and detail.
Visit the studio
Selected
Projects
References where we delivered process certainty, architecture, and measurable results.
Our Team
Experts in their fields, united by a shared vision. Meet the faces of ONN Group.
Petr Strakoš
Petr has over 10 years of experience in the preparation of residential and civic building projects. His specialisation is the legislative process and design optimisation.
David Poláček
David has over 15 years of experience preparing projects for major private investors. His focus spans the preparation phase from acquisition through to general contractor selection.
Petr Roupec
Petr has over 15 years of experience in development project management and real estate asset management. He brings an investor's perspective to ONN: decision-making based on data, returns, and long-term value.
Jiří Bonk
Jiří is responsible for investor relations and business development. He builds and maintains long-term relationships with investors and partners who seek stable projects, clear structure, and a professional approach.
