This Circular supersedes Part B of the Circular: URA/PB/2004/29-CUDD dated 6 Sep 2004 on “Guidelines to encourage more innovative and better design of rooftops”.

1. URA has undertaken a review of the existing screening guidelines for Mechanical and Electrical Services and Car Parks. The review incorporated feedback from the industry and took into account, built examples.
   
   
2. The revised guidelines aim to promote the effectiveness of the screening while ensuring that the ventilation requirements for the proper functioning of Mechanical and Electrical equipment and fire safety requirements are not compromised. The guidelines are intended to provide clarity on what would be considered effective screening. Alternative proposals that achieve effective screening will be considered.
   
   Areas where guidelines will apply
   
3. The screening guidelines will be applicable to all new erections, reconstruction works, major A&A works, cladding and roofing works within the Central Area, Urban Design Areas¹ outside of the Central Area, as well as government land sale sites and strategic redevelopment sites. See detailed guidelines in Annex 1 and built examples in Annex 2.
   
   
4. I would appreciate it if you could convey the contents of this circular to the relevant members of your organisation. You are advised to refer to the Development Control Handbooks and URA’s website for updated guidelines instead of referring to past circulars.
   
   
5. For other information on the master plan, urban design guidelines, private property use and approval, car park locations and availability, private residential property transactions, and conservation areas and buildings, use URA SPACE (Service Portal and Community e-Services). This is an online portal packed with useful data and visualisation to help building professionals, business operators and the general public in their decision-making. It consolidates detailed information on land use and private property into a one-stop platform presented on geospatial maps. For feedback or enquiries on this circular, please email us. 

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¹ A list of Urban Design Areas can be found at https://www.ura.gov.sg/maps/?service=SBUDCM