Anything worth doing is worth doing well.

Good work begins with the right state of mind.
A calm mind absorbs and observes.
Observation leads to understanding.
Understanding builds knowledge.
Knowledge gives us the freedom to choose.
The freedom to choose builds confidence.
Confidence gives rise to personal taste.
Style is fleeting.
Taste is timeless.

Original work emerges when you trust your own taste.

Media & publications

01 Grazia Magazin

02 Journal

03 Bauštela.hr

04 After 5

05 Ideja doma

06 Telegram.hr

Our Team

Founder & Creative Director Dora Tomulić mag.ing.arch. Dora leads client relationships and sets the creative and business direction of each project. She finds inspiration everywhere, particularly in contrasts, and develops ideas intuitively, quickly and in motion. She connects concepts with everyday life, patterns of use and investment logic.

Architect & Project Manager Adrianna Prekpalaj mag.ing.arch. Adrianna simultaneously designs and manages multiple projects, maintaining their pace, schedules and coordination. She combines strong technical knowledge, material expertise and precision in detailing with experience across architecture, interiors and hospitality projects.

Architect Lana Josipović mag.ing.arch. Lana works across architecture and interior design, refining concepts into their final form. Her particular focus is on formal details, sculptural qualities and aesthetic precision, through which she transforms the initial idea into a clear and distinctive spatial whole.

Architect Helena Čačić mag.ing.arch. Helena works across architecture and interior design, with a particular focus on the early stages of development. Through strategic thinking, zoning and clear functional principles, she establishes the project’s structure and connects the client’s needs with the logic of the space.

Dora Tomulić

mag.ing.arch.

Founder & Creative Director

Dora leads client relationships and sets the creative and business direction of each project. She finds inspiration everywhere, particularly in contrasts, and develops ideas intuitively, quickly and in motion. She connects concepts with everyday life, patterns of use and investment logic.
Adrianna Prekpalaj

mag.ing.arch.

Architect & Project Manager

Adrianna simultaneously designs and manages multiple projects, maintaining their pace, schedules and coordination. She combines strong technical knowledge, material expertise and precision in detailing with experience across architecture, interiors and hospitality projects.
Lana Josipović

mag.ing.arch.

Architect

Lana works across architecture and interior design, refining concepts into their final form. Her particular focus is on formal details, sculptural qualities and aesthetic precision, through which she transforms the initial idea into a clear and distinctive spatial whole.
Helena Čačić

mag.ing.arch.

Architect

Helena works across architecture and interior design, with a particular focus on the early stages of development. Through strategic thinking, zoning and clear functional principles, she establishes the project’s structure and connects the client’s needs with the logic of the space.

Our network

Alongside its core team, NineHertz brings together a network of specialist collaborators from different fields, to give clients a complete and coordinated process.

01

Design and Technical Disciplines

Structural engineers
Mechanical and electrical engineers
Plumbing and drainage consultants
Fire safety specialists
Land surveyors
Geotechnical engineers
Conservation specialists
Landscape architects
Acoustic consultants and lighting designers

02

Identity and Experience

Service design and hospitality specialists
Brand strategists
Graphic and wayfinding designers
Photographers
Stylists
PR specialists
Artists
Curators and galleries

03

Property and Delivery

Real estate agents
Legal and investment advisers
Cost consultants
Developers
Contractors
Specialist trades
Manufacturers and suppliers of furniture, lighting, equipment and artworks

Structural engineers
Mechanical and electrical engineers
Plumbing and drainage consultants
Fire safety specialists
Land surveyors
Geotechnical engineers
Conservation specialists
Landscape architects
Acoustic consultants and lighting designers

Service design and hospitality specialists
Brand strategists
Graphic and wayfinding designers
Photographers
Stylists
PR specialists
Artists
Curators and galleries

Real estate agents
Legal and investment advisers
Cost consultants
Developers
Contractors
Specialist trades
Manufacturers and suppliers of furniture, lighting, equipment and artworks

Our approach

Stories are how people remember, understand and pass on the world around them. That is why every project has a life of its own. Sometimes it begins with form, sometimes with a way of life, a cultural reference, an association, a dream or a fascination.

We see architecture as the scenography for what is yet to unfold within a space. From a technical requirement to a poetic idea, we find each project’s own logic and use it to shape the space. Individuality is not a finishing layer—it is the starting point.

Our aim is to provide an exceptional, comprehensive design service under one roof—from concept development and alignment with the business narrative to technical development, regulatory matters, final art curation and photography of the completed space. We want design to feel like a guided exploration: a professional and transparent yet fun process through which we discover possibilities together and create distinctive, individual spaces.