1. Not enough time: 
A lot of business owners shy away from design because they think it’s too time consuming. Yes, it’s true. You have to invest time. When we design, we spend a lot of time to plan properly. Many see this as unproductive. But, one needs to understand the more planned things are, the execution is faster and more accurate.
—Vimi Rath, Stonehenge Designs 

2. Not enough money:
It is important for a business owner to put into perspective the cost of having an interior architect on-board. Often, the cost of a trained, seasoned architect is less than the cost of tiling or carpeting. Invest in good, ergonomic furniture, sound airconditioning, lighting and services, and then on aesthetic effects. Spending smartly on an office interior can save the owner a lot of money when it comes to maintenance and depreciation. It counts to spend where there would be maximum impact and where quality should not be sacrificed. Moreover, a space can be designed for a few thousand rupees or for several crores, depending on the needs and means of an organisation. 
—Sneha Ostawal, Source Architecture

3.Not enough value:
Renowned American designer Charles Eames famously said ‘Whoever said pleasure wasn’t functional.’ Design is not just related to how things look, but how they work. What many business owners miss is that good design can positively reinforce brand identity for customers as well as promote interaction and innovation within the organisation, help employee retention and productivity, and introduce flexibility and fun into the workplace. Design is mostly perceived as something of an indulgence. In fact, good design is the most creative and efficient solution to real issues such as choosing good chairs over expensive wallpaper and good lighting over expensive finishes. 
—Amritha Ballal, Space Matters