Convert paved extension into living space

We have a budget of €40,000. That is not much, I know.

Ok, solution-oriented with budget, but young hardworking hands.

A little money to have your ideas professionally implemented by craft businesses.

Ok, solution-oriented with a budget, but young hardworking hands. The roof of the conservatory has rafters. These will be doubled up to about 20cm in own work. Check if there is a foil under the roof tiles. The wood must of course be removed beforehand. After doubling up, insulate. Then a vapor barrier, cross battens attached and clad. There are many different variants, use the U-value calculator to calculate. Then remove the paving and build a floor slab yourself. Pay attention to the different and necessary levels and wall connections. You can find everything through search engines. The windows remain weak points - that’s just how it is. Then you have done a lot with little money. Note - all in own work of course, including reinforcement, concrete and screed. I would then make the door to the "hallway" as a secondary entrance door. Insulate the roof of the house in own work. That brings a lot for little money. About 30% of the energy is lost through the roof if it is not insulated. Then: look for weak points. E.g., leaky windows, shutters, etc. If there is no new heating system, at least optimize it. You can also insulate that, as well as the hot water tank, if present and old. It will all work out!

Ok, solution-oriented with a budget, but young hardworking hands. The roof of the conservatory has rafters. They will be doubled up by ourselves to about 20cm. Check if there is a foil under the roof tiles. The wood must of course be removed beforehand. After doubling up, then insulate. Then a vapor barrier, horizontal battens installed, and clad. There are many different variants, use the U-value calculator to do the calculations. Then remove the paving and build a floor slab yourself. Pay attention to the different and necessary levels and the wall connections. You can find all this via search engines. The windows remain weak points - that’s just how it is. Then you will have done a lot with little money. Note - all of this of course done by yourself including reinforcement, concrete, and screed. I would then make the door to the "hallway" as a secondary entrance door. Insulate the house roof yourself. That brings a lot for little money. About 30% of the energy is lost through the roof if it is not insulated. Then: look for weak spots. That means leaky windows, roller shutters, etc. If there is no new heating system, at least optimize it. You can also insulate it, as well as the hot water storage tank if present and old. It will all work out!

Thank you for the floor plan. What does the upper floor look like? I can already see there are countless ways to sink money here. Since you don't have enough to modernize the house, only a renovation and minor alterations come into question for now.

First, I would separate the entrance and the living room. Ideally with a large fixed glazing and a 36 cm Poroton wall. The large window in the north is double-glazed; that can stay as it is for now. The area below the window might get some additional external insulation. Then insulate the roof area and the floor in the living room as already described.