Building an extension
An extension rarely starts with the contractor and almost always with the permit. Describe what you have in mind and how large, and you get contractors who know what is achievable in your municipality.
Request quotesWhen do you call a professional?
An extension makes sense when moving costs more than building on: a larger living space, a study, or a ground-floor bedroom so you can stay in your home longer.
What to check in the quote
Ask whether the price includes the permit application, the architect and the energy performance reporting. Those three are often excluded and together they weigh heavily on the final figure.