The National Environment Agency (NEA) imposes maximum permissible noise levels for different time periods, which get significantly more stringent later into the day and for sites located near hospitals, schools and residential premises.
In addition, construction companies are required to install noise monitoring meters at the nearest affected premises to continuously monitor and record their noise levels. Between 7pm to 10pm, the maximum 1-hour continuous noise level from construction sites is 65 dBA (measured from the nearest affected residential building), which further drops down to 55 dBA from 10pm to 7am – an approximate four-fold reduction in perceived loudness from what is allowed in the day. This noise level is comparable to normal conversation levels. NEA will not hesitate to take enforcement action against contractors who generate noise levels exceeding the permissible limits.
Construction sites which started work on or after 1 Sep 2011 are also prohibited from carrying out work from:
(a) 10.00 pm on Sat till 7.00 am on the following Mon; and (b) 10.00 pm on the eve of public holiday till 7.00 am on the day after the public holiday.
Other than the above restriction, the contractor is allowed to carry out works continuously. However the contractor is required to ensure the noise levels generated do not exceed NEA’s stringent noise limits. Details of NEA’s construction noise regulations can be viewed at www.nea.gov.sg/anti-pollution-radiation-protection/noise-pollution-control.
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