Interior Design Costing

Interior Design · Level 6  ·  7 Chapters

Can I download Interior Design Costing notes as a PDF?

Yes. The notes download as a PDF too: every chapter has a Download PDF button above its notes. Sign in and click it. Each download comes from your plan's monthly allowance or from credits. To read before you sign in, the first topic of every chapter opens to anyone, and a Profplanet plan opens the remaining topics.

▣

What Interior Design Costing covers

Measuring a space, valuing the project and pricing the work make up Interior Design Costing in Interior Design Level 6. The seven outcomes cover spatial measurement with units, tools and area calculations; project valuation with its methods, process and reports; bills of quantities with their purposes, types, content and formats; materials specifications and specification writing; unit rates for interior works; taking off quantities from drawings and specifications; and project estimation of material costs and estimation methods.

■

Careers after Interior Design Costing

Interior Design Costing is a skillset that opens doors to many exciting opportunities in Kenya’s vibrant economy. Whether you dream of working in bustling cities, growing counties, or starting your own business, these skills are sought after across multiple sectors. Here’s where you’ll use them:

  • Construction Sites & Real Estate: Developers and contractors need professionals who can accurately measure spaces, estimate material costs, and value projects for residential, commercial, and public works. Your expertise ensures buildings are completed on budget and to specification.
  • County Works & Government Projects: County governments hire interior designers and cost estimators for schools, hospitals, and offices. Understanding legal frameworks and organizational standards is crucial for public procurement and project assessment.
  • Hospitality Industry: Hotels, resorts, and restaurants in places like Nairobi, Mombasa, and Naivasha rely on skilled interior designers to create appealing spaces, manage budgets, and source materials efficiently.
  • Jua Kali Sector: Small workshops and furniture makers in Kenya’s jua kali industry benefit from accurate spatial measurements and material calculations to deliver custom interiors for homes and businesses.
  • Self-Employment & Entrepreneurship: With these skills, you can start your own interior design consultancy, offering services to clients who want to renovate, decorate, or fit out spaces. You’ll earn by charging for project valuation, material estimation, and design services.
  • Corporate Facilities & KTDA: Large organizations and tea factories (KTDA) regularly upgrade offices and facilities, requiring professionals who can assess needs, plan spaces, and manage costs.
  • Emerging Trends: Mastering new measurement techniques and digital tools makes you competitive in a market that is embracing smart buildings and innovative design solutions.

By mastering Interior Design Costing, you become the trusted expert who turns dreams into reality—helping clients, employers, and your own business succeed. Your skills are the foundation for a prosperous, creative future in Kenya!

Chapters

What Interior Design Costing covers: 37 main topics in 7 chapters

1. Perform spatial measurement

  1. 1.1 Introduction to spatial measurement
  2. 1.2 Importance of measurement
  3. 1.3 Units of measurements
  4. 1.4 Measurement tools
  5. 1.5 Standard methods of measurement writing
  6. 1.6 Area calculations
  7. 1.7 Emerging trends on spatial measurements

2. Conduct project valuation

  1. 2.1 Need for project valuation
  2. 2.2 Factors impacting project valuation
  3. 2.3 Rules to ensure cash flow writing
  4. 2.4 Project valuation methods
  5. 2.5 Project valuation process
  6. 2.6 Valuation reports

3. Prepare Bill of quantities

  1. 3.1 Purposes of bill of quantities
  2. 3.2 Types of bills of quantities
  3. 3.3 Advantages of bill of quantities
  4. 3.4 Disadvantages of bill of quantities
  5. 3.5 Content of bill of quantities
  6. 3.6 Formats of bills of quantities
  7. 3.7 Preparation of bills of quantities (methods)
  8. 3.8 Applications bill of quantities
  9. 3.9 Emerging trends in bill of quantities

4. Prepare materials specifications

  1. 4.1 Types of interior materials
  2. 4.2 Material specifications
  3. 4.3 Role of material specification
  4. 4.4 Sources of information on materials
  5. 4.5 Specification writing
  6. 4.6 Performance parameters of materials

5. Prepare unit rates

  1. 5.1 Costs of material in the market
  2. 5.2 Unit rates of interior works in the market
  3. 5.3 Calculation of rates for interior works Perform taking off quantities

6. Perform taking off quantities

  1. 6.1 Material quantities
  2. 6.2 Work procedures
  3. 6.3 Analyse drawings and specification
  4. 6.4 Procedure of taking off quantities Perform project estimation

7. Perform project estimation

  1. 7.1 Material costs in the market
  2. 7.2 Methods of project estimation

Practise this unit

Revise this unit

3 more for this unit

Beyond the syllabus

Other units in Module VI