A number of housing market researches reveal that a standard Loft Conversion Stairs boosts your property or house value by more than 15% - 20%. You can also make extra revenue by renting the room out to a tenant. The stressful procedures associated with planning permission are also not essential for a viable conversion technique. Homeowners can make certain types of minor modifications or changes to a house without necessitating applying for planning permission. These are regarded as permitted development rights and most of the popular loft conversion alternatives are classed as permitted development.