The self-built garden house - this is how it works

The self-built garden house - this is how it works

It doesn't work without a building permit

A garden shed (7.70 € at Amazon *) that is bricked up requires a building permit in any case. It can often be read that even these houses do not require approval up to a certain volume, but such information is incorrect. For such a house you need a full-surface foundation, so it is always subject to approval.

also read

  • Anchoring the garden shed well: A foundation ensures stability
  • Foundation and flooring for a garden house without a floor
  • Garden shed: the right substructure ensures stability


This must be properly dimensioned and contain all the necessary details. As a rule, proof of the load-bearing capacity is also required. It is therefore advisable to have the construction plan drawn up by an architect.

The foundation

So that the little house is stable, a full-surface foundation is necessary. An old basic bricklayer rule states that this must be about three times as thick as the wall thickness for sufficient stability. It is therefore advisable to use an excavator as an aid in large houses.

How is masonry built?

Material list

In addition to specialist knowledge, you need a little more material for a brick garden house than for a wooden house.

For the foundation:

  • Construction film
  • Formwork material
  • gravel
  • concrete

For the walls

  • Bricks or Ytong stones
  • mortar
  • concrete
  • If you want to additionally insulate the house, suitable materials for this

The tools required:

  • String to mark the outline
  • Shovel and spade or a small excavator to dig the pit
  • Plate compactor
  • trowel
  • Spirit level
  • plummet

Make the foundation

First of all, the construction pit is excavated and supported in it by formwork. Align the boards horizontally with the spirit level and the guide line (€ 4.86 at Amazon *). Then fill in a layer of gravel, lay the building tarpaulin and add reinforcement. The concrete is then poured evenly.

Pull up walls

To make the wall really straight, do the following:

  • The first layer of stones is placed in a thick bed of mortar. Align the bricks very precisely.
  • Tighten the guide line in each row to guarantee the exact position of the stone.
  • Frequent checks with the plumb bob ensure that the wall does not get crooked. A sense of proportion is by no means sufficient here.
  • In order to transfer forces, the wall must be sufficiently tied.
  • In the area of ​​windows and doors, wooden frames are used, which are covered with U-profiles.
  • The top of the wall also consists of U-profiles, which are then reinforced and filled with concrete.


The use of stone blocks and thin-bed mortar makes the work of bricklaying much easier. Nevertheless, as a layperson, you should seek support from a specialist if necessary.