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The Interior Designer Licensure Examination (IDLE) in the Philippines is a professional board exam administered by the Professional Regulation Commission (PRC) to assess the competencies of aspiring licensed interior designers. The exam ensures that candidates have the appropriate knowledge, design proficiency, and technical understanding of interior environments, materials, construction, and professional practice. Passing the IDLE is required to legally practice as a Registered Interior Designer in the country.
Becoming a licensed interior designer opens doors to numerous career opportunities across residential, commercial, hospitality, retail, institutional, and public space design. This guide provides a comprehensive breakdown of the exam structure, eligibility, requirements, application process, recommended study strategies, and post-exam steps.
To qualify for the Interior Designer Licensure Examination, applicants must meet the following primary requirements:
A Bachelor’s Degree in Interior Design, or
A Bachelor’s Degree in Interior Architecture, or
A Bachelor’s Degree in Fine Arts (Major in Interior Design)
from a CHED-recognized institution.
The program must include the required number of units in design, construction, architectural theory, materials, and professional practice.
Applicants must also present the following documents when applying through PRC online:
PSA Birth Certificate
Transcript of Records with scanned photo and remark “For Board Examination Purposes”
Valid ID (government-issued)
Passport-sized photos (recent, white background, proper attire)
Evidence of completion of required practicum hours if applicable
Marriage certificate (for married female applicants)
The Interior Designer Licensure Examination consists of three main subjects. Each part assesses different aspects of interior design practice, ensuring well-rounded professional competence.
This subject covers:
Design principles and application
Space planning and conceptualization
Interior environments and styles
Furniture layout
Color theory, lighting concepts, and human factors
Design development and presentation
This section tests the candidate’s understanding of:
Building construction systems and structural coordination
Interior finishes, materials, specifications, and applications
Mechanical, electrical, plumbing (MEP) systems
Acoustics, HVAC, fire safety, and sustainability principles
Detailing and working drawings
The last part revolves around:
Interior design contracts and documentation
Cost estimates, budgeting, and project management
Professional responsibility and ethical standards
Philippine laws relevant to the practice
Code of ethics and standards of practice
To pass the examination, a candidate must:
Obtain a general weighted average of at least 70%, and
Not get a score below 50% in any subject.
The passing rate varies per year, typically ranging between 40% to 60%, depending on the overall performance of examinees.
The PRC uses an online system for exam applications.
Visit the PRC LERIS (Licensure Examination and Registration Information System) website and create an account. Upload your photo following PRC guidelines.
Choose your preferred testing center and schedule. Slots are often limited, so early application is recommended.
Ensure that all required documents are complete and properly scanned before your appointment date.
Payment can be done through:
PRC Cashier
Partner payment centers
Online payment options
Attend your appointment to submit your physical documents and receive your Notice of Admission (NOA).
Studying for the Interior Designer Licensure Examination requires a combination of design creativity, technical mastery, and extensive review. Here are effective strategies:
Allocate sufficient time for each subject area, balancing design theory, construction knowledge, and professional practice.
Recommended resources include:
Standard drafting and design references
Philippine Interior Design Act (RA 10350)
Building code references
Lighting and material specification guides
The IDLE may require conceptual drawings, space planning, and problem-solving graphics. Regular practice enhances speed and accuracy.
Many applicants find review centers helpful for structured learning and mock exams.
Be well-versed in:
Lighting standards
Building codes
Fire protection guidelines
MEP system integration
Studying previous exam patterns provides insight into commonly tested topics.
Notice of Admission
Valid ID
Black ballpen
Pencil, eraser, and drawing tools (if required)
Clear folder
Snacks and water (if allowed)
Gadgets, calculators, and digital devices (unless explicitly allowed)
Notes or cheat materials
Bags (depending on testing site rules)
Read instructions carefully
Manage time wisely
Answer easier questions first
Use diagrams or sketches if required
After taking the exam, the following steps are important:
Results are usually released after several working days. These can be found on the PRC official website.
Successful examinees must attend the PRC oath-taking ceremony (virtual or in-person) to formalize their professional status.
New passers must register with PRC to obtain their:
Professional ID
Professional Registration Certificate
After earning your license, you can pursue various career paths including:
Residential interior designer
Commercial/office designer
Retail and visual merchandising designer
Hospitality and resort designer
Furniture designer
Lighting designer
CAD or 3D visualization specialist
Design consultant
Project manager
Licensed interior designers can also establish their own design studios or collaborate with architectural firms, real estate developers, and construction companies.
To renew your interior designer license, you must comply with CPD requirements set by PRC. This includes participating in accredited seminars, workshops, and training programs.
The Interior Designer Licensure Examination is a rigorous but rewarding process that leads to a fulfilling and creative profession. With the right preparation, discipline, and understanding of both design and technical concepts, aspiring interior designers can perform well and build an impactful career in the design industry.
This guide aims to help you navigate the journey from exam preparation to obtaining your professional license. Whether you’re a student, a fresh graduate, or a career shifter, mastering the essentials of the IDLE is the first step toward becoming a licensed interior designer in the Philippines.
You are generally eligible to take the Interior Designer Licensure Examination if you have completed a Bachelor’s Degree in Interior Design, Interior Architecture, or Fine Arts major in Interior Design from a recognized institution. Your program should include sufficient units in design, construction, materials, and professional practice. In addition, you must be able to submit standard documentary requirements such as your transcript of records, birth certificate, valid ID, photos, and other documents required by the Professional Regulation Commission (PRC).
In many cases, programs in interior design already integrate practicum or on-the-job training into the curriculum. Some schools or regulations may require proof of completed practicum hours, but a long period of post-graduation experience is usually not required to sit for the exam. It is important to check the latest PRC guidelines and your school’s certification regarding practicum or internship requirements.
The exam typically covers three main subject areas: (1) Interior Design Planning and Interior Design, which focus on design principles, space planning, and presentation; (2) Interior Construction, Utilities, and Materials, which cover building systems, finishes, and technical coordination with mechanical, electrical, and plumbing services; and (3) Professional Practice and Ethics, which deal with contracts, project management, relevant laws, and the code of ethics for the profession.
The exam is graded per subject and then combined into a general weighted average. To pass, you must obtain at least a 70% general weighted average, with no rating below 50% in any of the subjects. If you fall below the required minimum in one or more subjects, you may need to retake those portions or the entire exam, depending on current PRC policies.
The exam is usually administered once a year or according to the schedule set by PRC. The exact dates, application periods, and venues can change from year to year, so you should always refer to the official PRC examination calendar and announcements for the most accurate and updated schedule.
Applications are done through the PRC’s online system, commonly referred to as LERIS (Licensure Examination and Registration Information System). You need to create an account, upload your photo following PRC standards, fill out personal and educational details, choose your preferred exam center and schedule, and then set an online appointment. After completing the online process and paying the required fees, you must appear at the PRC office on your chosen date to submit your documents and receive your Notice of Admission.
Typical documentary requirements include your birth certificate, transcript of records with a remark indicating it is for board examination purposes, recent passport-sized photos with white background and proper attire, a valid government-issued ID, and, if applicable, a marriage certificate for married female applicants. Some cases may require additional certifications such as proof of practicum hours or course description copies. Always verify the updated list on the official PRC website before submission.
The exam fee is set by PRC and may be updated from time to time. Payment is usually made either directly at PRC cashiers, through accredited payment centers, or via online payment channels integrated with the LERIS system. You should check the current fee structure and payment options in the latest PRC issuance or on their official online portal.
You should balance your review across design theory, technical construction knowledge, and professional practice. This includes reinforcing your understanding of design principles, space planning, interior styles, building systems, materials, lighting, and environmental considerations. At the same time, study contracts, professional ethics, laws governing interior design practice, and basic cost estimating. It is highly recommended to practice drawing, conceptual development, and problem-solving under time pressure, as well as to review past exam questions and case examples.
Review centers are not mandatory, but many examinees find them helpful for structured review, mock exams, and guidance from experienced instructors. Whether you attend a review center or self-study, the most important factors are consistency, systematic coverage of all subjects, and practice with exam-style questions and design problems. Some graduates succeed through disciplined self-study, while others prefer the support and accountability that a review center provides.
On exam day, you must bring your Notice of Admission, valid ID, and the permitted writing and drawing tools. You will be required to follow strict testing rules, such as being on time, wearing appropriate attire, and not bringing prohibited items like gadgets, notes, or unauthorized calculators. Instructions will be given before the exam starts, and you will have a set number of hours to finish each subject. Time management, calmness, and careful reading of questions are essential for good performance.
If you pass, your name will appear on the official list of successful examinees released by PRC. You will then be scheduled for an oath-taking ceremony, which may be held onsite or online, depending on current arrangements. After the oath-taking, you can proceed with the initial registration to obtain your Professional Identification Card and Certificate of Registration. Only after completing these steps are you officially recognized as a licensed interior designer and legally allowed to practice.
Licensed interior designers can work in a broad range of sectors, including residential, commercial, corporate, retail, hospitality, and institutional projects. You may be employed by design and architectural firms, real estate developers, construction companies, furniture manufacturers, or retail brands. Many professionals also choose to open their own design studios or work as independent consultants. There are also roles in teaching, styling, furniture design, lighting design, and computer-aided visualization.
Yes, licensed professionals are generally required to comply with Continuing Professional Development (CPD) regulations to renew their license. This involves earning CPD credit units by attending accredited seminars, workshops, conferences, or training programs related to interior design and allied fields. CPD helps ensure that you stay updated with new technologies, materials, sustainability standards, and design practices throughout your career.
Foreign-educated applicants may be allowed to sit for the exam, provided their degree is evaluated as equivalent to the required Philippine program and they comply with all documentary and legal requirements set by PRC. This may include recognition or validation of credentials and, in some cases, additional documentation from their foreign institution. Because policies and procedures can change, it is important for foreign graduates to coordinate directly with PRC for the latest guidelines before applying.
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