There are various things to consider when estimating the cost of building a badminton court. Here are some crucial things to remember:

1. Location: Depending on the location, construction costs can change. The total price can be affected by variables like the availability of land, accessibility, and regional building codes.
2. Size and Dimensions: The badminton court’s dimensions will determine how much construction space is needed. For singles play, a conventional badminton court is 13.4 meters long by 6.1 meters wide, and for doubles play, it is 13.4 meters long by 7.3 meters wide. However, additional room could be needed for facilities like walkways, seating places, and others.
3. Materials: The cost of a building project will be greatly influenced by the materials chosen. Take into account the price of supplies like flooring, lights, fences, nets, and other essential tools. There are several possibilities and quality levels, so pick materials that balance robustness and affordability.
4. Surface: There are different surface alternatives for badminton courts, including PVC, synthetic, or wooden floors. Regarding price, upkeep, and performance, each surface type offers advantages and disadvantages.
5. Lighting: Playing badminton requires adequate lighting. Think about how much it would cost to install fixtures that would sufficiently illuminate the court.
6. Amenities and Facilities: You may need to factor in extra amenities like locker rooms, showers, restrooms, seating places, storage space, and parking facilities depending on the use and size of the badminton court. The price will be affected by these amenities.
7. Labor and Professional Fees: Include the cost of hiring labor, such as skilled laborers, contractors, and architects, in your building budget. For the arrangement of the court, the electrical systems, and other technical concerns, you might also need to speak with experts.
8. Permits and Regulations: Research local building codes and secure any required approvals or permits, as these may be expensive. Additionally, take into account any demands for sustainability or the environment that can affect the construction process.
9. Contingency: It’s a good idea to set aside money in your budget for unforeseen costs or modifications that may arise throughout the construction process. This will aid in defraying any unforeseen expenses that could occur.
10. Upkeep and Continuing Costs: Remember that the first investment is merely the cost of construction. Consider expenditures for continuous maintenance, repairs, and operations, such as facility management, routine surface maintenance, and lighting maintenance.

To achieve a precise estimation of the overall cost of badminton court building, it is necessary to speak with experts who have experience in the field and to take into consideration collecting different quotations or estimates.