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Management Organisation of Main Construction Companies

Construction Programme (Sept 2011 version)


Environmental Permit


Central Police Station Revitalisation Project Booklet


Restoration of CPS Buildings (Factsheets)


Contemporary Art Vision for the CPS Compound


Conservation Management Plan


Highlights of Conservation Management Plan


Conservation Management Plan Interim Review


Archaeological Investigation Report (English with Chinese summary)


Report on the Public Consultation


Planning Application submitted to Town Planning Board Apr 2011


Extracted from Confirmed Minutes of 441st Meeting of Metro Planning Committee, Town Planning Board


Planning Application submitted to Town Planning Board, Dec 2011 (English with Chinese summary)


Extracted from Confirmed Minutes of 459th Meeting of Metro Planning Committee, Town Planning Board


Environmental Monitoring Information

Last updated: 2 Mar 2018

Noise Monitoring Data
During the construction stage of the Project, mitigation measures have been put in place to control the construction noise levels. Noise monitoring is also conducted to ensure compliance with the relevant noise criteria. The noise monitoring results are available for downloading.

Explanatory note:
Station 1 – Ho Fook Building
Station 2 – Chancery Mansion

*Leq - Equivalent Continuous Sound Level. This is a widely used noise descriptor that is commonly adopted in many developed countries. It is the constant noise level which, under a given situation and time period, contains the same acoustic energy as the actual time-varying noise level.
*L10 - It is the level exceeded for 10% of the time (30 mins). For 10% of the time, the sound or noise has a sound pressure level above L10. For the rest of the time, the sound or noise has a sound pressure level at or below L10. These higher sound pressure levels are probably due to sporadic or intermittent events. 
*L90 - It is the level exceeded for 90% of the time (30 mins). For 90% of the time, the noise level is above this level. It is generally considered to be representing the background or ambient level of a noise environment.

*Source: Environmental Protection Department, The Government of the Hong Kong Special Administrative Region