General preventive boil water advisory in effect : All Chelsea residents served by the municipal water system must boil their water for at least one minute before consuming it, until the advisory is lifted. Details.

Property assessment

Consult the assessment roll of your
property online


Please note that property assessments are the responsibility of the MRC des Collines-de-l'Outaouais and not the Municipality of Chelsea. If you have any questions concerning your evaluation role,  please contact the MRC des Collines.


Access for general public

Access for professionals (real estate agents, notaries, accredited appraisers, or any other related professions)



MRC des Collines-de-l'Outaouais