BlogRenovation Resources

How to Estimate Office Renovation Costs

By August 3, 2015April 19th, 2021No Comments

Last updated: September 21, 2018

One of the largest mistake building owners make is underestimating the renovation costs for their home, office, restaurant, or store. How do you estimate office renovation costs? Having a clear budget in mind is crucial, as once you’ve started a renovation project it’s difficult to stop. It can be even more problematic to have decided to buy or rent because you underestimated the renovation costs, only to get an accurate estimate and realize you’re in the hole for thousands of dollars.

If you’re planning on making renovations (or buying a building with the intention of renovating), make sure you can accurately estimate how much those renovations will cost. This includes both materials and labor, as well as intangibles such as not being able to use the room you’re renovating.

If you’re doing renovations yourself, labor doesn’t cost you financially, but it still has the opportunity cost of taking up your time and energy. Additionally, doing renovations is a very physical process, and doing it yourself will make you fatigued and sore. Always have a 10-15% contingency to cover extra materials or additional variation work during the construction.

When estimating the cost of materials, make sure to account for things like missed items and breakage. And don’t just use the least expensive products in your calculations; figure out which materials you will actually use and price accordingly.

When estimating the cost of labor, get multiple quotes and check up on the contractors’ reputations. Some contractors will charge less but have a history of lower quality work, or billing for addition variation changes to cover the initial low cost.

Hiring skilled, experienced contractors is essential to the success of your renovations. It is worth investing a little bit of extra money on reputable and experienced contractor teams, so you don’t need to stress out over the other items.

For example, an office renovation in Hong Kong can cost HK$620 per square feet and up. A 2,000 square feet space can range from HK$1,24M (at $620/sqft) to HK$2.88M (at $1,440/sqft).

Office Renovation Budget*

*The total budget may vary depending on requirements, such as the number of employees, conference rooms, manager rooms, etc.




(in HK$)




(in HK$)




(in HK$)

General Construction
System Furniture
M&E Services
MiscTotal cost per square foot
620 900 1,440+

This article is meant to provide a guide to what to watch out for if you are considering renovations. If you keep this advice in mind, you’re much less likely to run into unexpected costs and much more likely for your renovations to be successful.

We have a more detailed budgeting table to get you started on estimating your office renovation cost.

Sign up below to get your FREE copy below.

Contact us if you’re ready to start your office renovation, or get more information about renovation costs.