Generally, making alterations or additions to your property would require a planning permission if the proposed works involve an increase in Gross Floor Area (GFA).
Depending on the nature of renovation for your terrace, semi-detached or detached house, you may need to apply for a planning permission.
Internal works within your flat, condominium or strata landed unit do not require planning permission when there is no increase in Gross Floor Area (GFA) and the premises continues to function as a self-sufficient residential unit with the essential communal spaces and amenities.