The interior design process is fundamental to delivering functional, aesthetic, and client-centred environments. In Kenya’s evolving built environment, interior designers must navigate diverse client needs, cultural contexts, and practical constraints to solve spatial challenges effectively. This chapter introduces the initial and critical stage of the design process: identifying the design problem. Mastery of this phase ensures that subsequent design decisions are well-informed and aligned with client objectives, regulatory requirements, and site conditions.

4.1 Design problem

The design problem defines the core challenge that the interior designer must address. It is the foundation upon which all design solutions are built, and its accurate identification prevents costly revisions and client dissatisfaction. In Kenya, interior designers often work in settings ranging from corporate offices in Nairobi to hospitality venues in Mombasa, making the understanding of the design problem essential to contextual relevance and success.

4.1.1 Identification of Design Problem

The identification of the design problem is a systematic process that involves gathering information, analysing client needs, and defining constraints. This phase requires a comprehensive understanding of the project context, including the physical space, user requirements, and cultural or regulatory factors influencing the design. A clear understanding of the problem guides the entire project, ensuring that design interventions are purposeful and measurable.

4.1.1.1 Client Needs and Goals

Understanding the client’s needs and objectives is the first step in identifying the design problem. It involves direct communication with the client to clarify their expectations, lifestyle, and functional requirements for the space. Interior designers must ask probing questions to uncover implicit needs that the client may not initially articulate.

• Clarifying Functional Requirements: Determining how the space will be used, including activities, number of users, and specific needs such as storage or accessibility. For example, a county government office in Kisumu may require an accessible reception area and private meeting rooms to serve diverse visitors.
• Timeline Expectations: Clarifying project deadlines to plan design phases and procurement effectively. For instance, a university library in Nairobi might require completion before the academic year starts.
• Long-Term Goals: Considering future adaptability or expansion needs to make the design sustainable. A SACCO headquarters might anticipate growth, requiring flexible office layouts.
• Business or institutional goals: Commercial clients may need the design to support sales, branding or productivity.
• Priorities: Separating what the client must have from what would be nice to have.

4.1.1.2 Space Analysis

Space analysis is the study of the available space: its size, shape, layout, openings, fixed features and current use. It shows what the space can hold and often reveals the real problem, such as wasted area or poor circulation. Accurate identification of the design problem necessitates a thorough analysis of the physical site so the design solution responds to its actual conditions.

• Spatial Measurements and Layout: Taking precise measurements and assessing the existing spatial configuration to identify limitations and opportunities. For example, a hospital ward in a county referral hospital may have strict requirements for bed spacing and circulation paths.
• Room relationships: Which rooms connect and which must sit next to each other.
• Circulation: The routes people take and whether they cross or block each other.
• Fixed features: Columns, stairs, windows and doors that cannot easily be moved.
• Current use: How each area is used now, and whether it is under- or over-used.

Worked example: occupancy capacity

Number of occupants = usable floor area ÷ area per person

An office has 120 m² of usable area and allows 10 m² per staff member.

Number of occupants = 120 ÷ 10

Number of occupants = 12 staff

4.1.1.3 Aesthetic Considerations

Aesthetic considerations are the visual and sensory qualities the client wants: style, mood, colours, materials and image. Identifying them early shows whether the current appearance is part of the problem, for example a dated look that no longer suits the client's brand.

• Aesthetic Preferences: Understanding the client’s taste in style, colour schemes, and materials to ensure the design aligns with their vision. A boutique hotel in Naivasha might prefer a rustic aesthetic to complement its natural surroundings.
• Mood: The feeling the space should create, such as calm, lively or luxurious.
• Brand identity: Colours, logos and materials linked to the client's image.
• Features to keep: Existing elements the client values.
• Dislikes: Colours, materials or styles the client wants to avoid.

4.1.1.4 Technical Constraints

Technical constraints are the structural, service and regulatory limits within which the design must work. Identifying them early prevents proposals that cannot be built, cost too much to change or break regulations.

• Building Codes and Regulations: Reviewing relevant Kenyan building standards, fire safety codes, and accessibility laws to ensure compliance. Designers working on a public school in Kisii must adhere to the Kenya Building Code and the Persons with Disabilities Act; a hotel development in Naivasha requires approval from the county planning department.
• Infrastructure and Services: Assessing existing electrical, plumbing, and mechanical systems to integrate design solutions effectively. A bank branch in Nakuru may have constraints due to existing wiring that affect lighting design.
• Structure: Load-bearing walls, slabs and columns that limit alterations.
• Fire safety: Escape routes and the fire rating of materials.
• Buildability: Contractors and suppliers can confirm what is practical to build and source.

4.1.1.5 Cost implications

Cost implications are the financial limits of the project and the likely cost of the changes needed. Identifying them early shows whether the problem must be solved with major works or lighter refurbishment.

• Budget Constraints: Discussing financial limits early to avoid proposing solutions that are not feasible. A retail business in Eldoret may have a strict budget that influences material choices and design complexity.
• Cost per square metre: A quick check of whether the budget matches the scope.
• Contingency: An allowance, often 5% to 10%, for unexpected costs.
• Running costs: Energy, cleaning and maintenance of the finished space.
• Phasing: Splitting work into stages to spread cost.

Worked example: budget per square metre

Budget per m² = (total budget − contingency) ÷ floor area

A Ksh 4,500,000 budget covers 150 m², with a 10% contingency.

Contingency = 4,500,000 × 0.10 = Ksh 450,000

Budget per m² = (4,500,000 − 450,000) ÷ 150

Budget per m² = 4,050,000 ÷ 150

Budget per m² = Ksh 27,000 per m²

4.1.1.6 Environmental Factors

Environmental factors are the natural and surrounding conditions affecting the interior, such as light, ventilation, climate, noise and views. They are often the cause of complaints that the design must solve, such as rooms that are hot, dark or noisy.

• Environmental Conditions: Considering natural light, ventilation, noise, and climate factors that impact interior comfort and material selection. A hotel in Mombasa must address high humidity and heat in its interior finishes.
• Orientation: The direction the space faces decides sun exposure and heat gain.
• Noise sources: Traffic, machinery or neighbouring activities.
• Views: Pleasant views to frame and poor views to screen.
• Sustainability: The client's wish to reduce energy and water use.

4.1.1.7 User Experience

User experience is how the people who use a space feel and function in it: comfort, wayfinding, safety and ease of carrying out tasks. Consulting those who will occupy or use the space reveals practical problems the client may not see.

• End Users: Consulting those who will occupy or use the space to understand practical requirements. A primary school in Kisumu may involve teachers and students in discussions on classroom layouts.
• Cultural and Social Context: Understanding local customs and social behaviours that influence space usage. A community centre in Turkana may require flexible spaces for communal gatherings respecting local traditions.
• Comfort: Seating, temperature, lighting and acoustics.
• Accessibility: Whether people with disabilities, children and older people can use the space.
• Wayfinding: How easily users find their way around.

4.1.1.8 Trends and Innovations

Trends and innovations are current developments in design styles, materials, technology and ways of using space. Awareness of them helps the designer see whether the client's problem comes from an out-of-date approach and what new solutions might be possible, weighed against durability and budget. Example: a company wanting more desks found through discussing co-working trends that flexible hot-desking met its needs without extra floor space.

• Flexible workspaces: Adaptable layouts for changing ways of working.
• Biophilic design: Plants, natural materials and daylight for wellbeing.
• Smart technology: Automated lighting, sensors and connected devices.
• Sustainable materials: Recycled, local and low-impact materials.
• African contemporary design: Modern interiors drawing on local crafts and motifs.

4.1.1.9 Competitive Analysis

Competitive analysis is studying similar spaces run by competitors or comparable organisations to see how they look, function and attract users. It shows where the client's space falls short and the standard the new design must meet or exceed. Example: a hair and beauty salon losing customers compared its interior with three nearby competitors and found its waiting area and lighting were clearly poorer.

• Identifying competitors: Similar businesses or institutions in the same area or market.
• Comparing features: Layout, finishes, lighting, comfort and branding.
• Strengths and gaps: What competitors do well and what they lack.
• Customer feedback: Online reviews and comments on competing spaces.
• Opportunities: Ways the client's space can stand out.

4.1.2 Documenting the Identified Design Problem

Proper documentation of the design problem ensures clarity and provides a reference for the entire design team. Regular review maintains alignment as new information emerges.

• Recording Findings: Creating detailed reports and sketches that summarise client needs, site conditions, and constraints. An interior design firm working on a SACCO office in Meru documents all site measurements and client interviews.
• Visual Documentation: Using photographs, videos, and annotated drawings to capture existing conditions. A hotel refurbishment project in Kisumu may include photo surveys of worn finishes.
• Confirming Findings: Sharing the documented findings with the client to confirm nothing has been missed or misunderstood.
• Updating Documentation: Revising documents as project scope or conditions change to prevent misunderstandings. A bank branch in Nakuru may alter requirements due to security concerns.
• Archiving for Reference: Maintaining records for future projects or post-occupancy evaluations. An interior design consultancy in Nairobi keeps documentation to inform similar projects and improve processes.

Chapter Summary

This chapter explored the interior design process starting with the identification of the design problem, emphasizing the importance of understanding client needs, space analysis, aesthetic preferences, technical constraints, cost considerations, environmental factors, user experience, current trends, and competitive context. The analysis of the interior design problem involved a detailed examination of user needs, cultural and environmental context, functional and technical requirements, and a comprehensive SWOT analysis to frame the challenges and objectives clearly, alongside engaging stakeholders and reviewing relevant precedent studies. The chapter then outlined the phases of an interior design project, including programming, preliminary design, design development, construction documentation, and construction administration, highlighting the systematic progression from concept to completion. Proposed solutions were developed through feasibility analysis, prototyping using various visual and material tools, stakeholder feedback, and formal presentation of ideas before finalizing selections and details for approval. Implementation focused on brainstorming and ideation, freehand drawing, careful material selection, ensuring functionality, and integrating ergonomics, usability, and accessibility, all refined aesthetically with appropriate technological applications. Throughout the process, continuous stakeholder engagement and feedback were essential leading to the final execution of the design solution. This comprehensive approach ensures that interior design projects are both practical and visually appealing while meeting client and user expectations.