Skip to main content

The interior designer plays a key role in the conception and execution of interior decoration projects. They are responsible for creating functional and aesthetically pleasing spaces that reflect clients’ needs and preferences. To do this, the designer must master design principles, market trends and specialized tools.

In this article we will examine in detail the work of the interior designer, from their main roles and skills, to the creative process and areas of practice. Current trends and ethical considerations in this profession will also be addressed.

Definition of Interior Designer

The interior designer is the professional responsible for designing and coordinating the decoration of interior spaces. They work closely with clients to create functional, comfortable and aesthetically pleasing environments that reflect the client’s style and needs.

The importance of interior designers in creating functional and aesthetically pleasing spaces

A skilled interior designer can transform any space, making it more comfortable, efficient and visually appealing. Through the right choice of layout, furniture, colors, textures and lighting, the designer solves functional problems and adds aesthetic value.

The interior designer’s role in the design and execution of projects

The designer plays a central role in the conceptualization and realization of interior design projects, from the conceptual phase to coordinating the execution team. Their job is to transform the client’s needs and desires into viable and creative design solutions.

Interior Designer Responsibilities and Roles

The main responsibilities of an interior designer include:

Gathering information and analyzing client needs and preferences

The designer should conduct a comprehensive client evaluation, from lifestyle to personal tastes, to determine goals and requirements for the project.

Concept development and creation of design proposals

Based on the information gathered, the designer develops an overall concept and prepares design proposals, including sketches, mood boards and floor plans.

Selection of materials, colors, furniture and accessories

The designer then specifies all the elements that will make up the project, from finishes to furniture. Everything should reflect the intended style.

Preparation of technical drawings and spatial layouts

The designer uses specific software to create accurate floor plans, sections and elevations, which will allow the project to be executed faithfully.

Coordination with other professionals such as architects and contractors

The designer must collaborate closely with architects, engineers and contractors to ensure feasibility and compliance with budgets and deadlines.

Overseeing project implementation and quality assurance

During implementation, the designer oversees the work to ensure that the project reflects their original vision and meets quality standards.

interior designer

Interior Designer Skills and Abilities

To successfully perform their various roles, the interior designer must possess certain key skills:

Knowledge of design principles and decorative styles

Mastery of elements such as color, shape, texture and composition is essential. The designer should also be familiar with historical influences and decorative styles.

Ability to create functional and aesthetically pleasing spaces

In addition to aesthetic sense, it is crucial that the designer creates practical and intuitive environments for users.

Mastery of interior design software and tools

The designer must be well-versed in CAD software and 3D visualization to produce project presentations and technical drawings.

Communication and teamwork skills

Given the collaborative nature of this profession, the designer must be an effective communicator and manager.

Knowledge of materials, finishes and market trends

Familiarity with new trends and material options is vital to create relevant and feasible projects.

Ability to manage budgets and project timelines

Meeting budgetary and time constraints requires strong project management capabilities.

interior designer workflow

Interior Designer’s Work Process

The typical process of developing an interior design project includes the following steps:

Gathering information and client briefing

Collecting information about the client’s needs, preferences and budgets.

Research and inspiration for concept development

Analysis of visual references, trends and creative solutions aligned with the briefing.

Creation of preliminary sketches and selection of materials

Preparation of sketches and specification of materials and finishes to define the design direction.

Development of technical drawings and visual presentation of the project

Creation of floor plans, sections and detailed renderings to communicate the final design to the client.

Coordination with suppliers and professionals involved in project execution

Collaborating on the ordering of materials, furniture and services required.

Oversight and project completion

Overseeing the implementation of the project and ensuring the end result reflects the original vision.

Interior Designer Areas of Practice

Interior designers work on various types of projects including:


Houses, apartments and other living spaces.


Offices, stores, restaurants, among others.


Hotels, resorts, spas and common areas.


Schools, hospitals, museums and public buildings.

Entertainment venues

Cinemas, theaters, concert halls and more.

Trends and Innovations in Interior Design

Some current trends in this field include:

Use of smart technology in interior spaces

Automated lighting, sound and climate control for added comfort and efficiency.

Sustainable and environmentally conscious design

Use of natural and recycled materials with reduced ecological footprint.

Integration of natural elements and biophilic design

Plants, natural light and materials that promote wellbeing and connection with nature.

Multifunctional and flexible spaces

Movable furniture and partitions for adaptable layouts as needed.

Customization and co-creation with clients

Client involvement at all stages to create unique and personalized spaces.

Interior Designer Ethics and Professional Responsibility

Designers should abide by ethical principles including:

Respect for copyright and intellectual property

No plagiarizing other designers’ work.

Accessibility and inclusion considerations in designs

Creating spaces that can be used by people with disabilities or other special needs.

Promoting sustainable and responsible practices

Specifying low-impact materials and processes.

Transparency and ethical communication with clients

Providing clients clear information about processes, costs and options.

Case Studies

Analysis of reference projects helps illustrate best practices in interior design, such as:

Presentation of outstanding interior design projects

Like the award-winning One Park Taipei project, recognized for its innovative integration of green spaces.

Analysis of stylistic approaches and creative solutions in different spaces

From minimalist industrial lofts to luxurious art deco designs in historic residences.


Recap of the interior designer’s importance

Creates functional and captivating spaces that enhance occupants’ lives.

Acknowledging the collaborative work with other professionals

Architects, engineers and builders are vital partners in this multidisciplinary profession.

Encouraging the pursuit of qualified and creative interior design professionals

Hiring talented designers with solid training will add value to any project.

The skilled interior designer is a visionary, able to transform spaces through the creative application of design principles and understanding of human needs. This multidisciplinary profession continues to evolve and benefit from contemporary technology and environmental awareness, to create functional, sustainable and enchanting interiors.

Desde pequena, sempre fui apaixonada por arte e design. Após formar-me em Artes Decorativas Portuguesas em 1999, diversifiquei a minha carreira, explorando o design de interiores e adquirindo experiência no comércio e no setor imobiliário. Em 2017, fundei o ALMA Interiores, concretizando a minha visão de unir todas essas habilidades.