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Exemption from connecting to the... - Apply for an exemption from connecting to the stormwater sewer
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A property in HSY's stormwater sewerage area must be connected to a stormwater sewer. The obligation to connect does not apply to undeveloped properties.
You can apply for an exemption from connecting to a stormwater sewer if all the conditions in Section 17(c) of the Water Services Act are met. You can only apply for the exemption when the area has been confirmed as the water utility's stormwa ...
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Text edited by: City of Helsinki, Urban Environment Division
Updated: 3/5/2026