Slope garage - how to build it? Step by step instructions - Tips + Photos and Videos

Slope garage - how to build it? Step by step instructions - Tips + Photos and Videos Garage on the slope: photos, projects, how to build? The construction of private houses and garages on a slope has long passed the construction stage on flat areas in the city and suburbs. Now it has become popular to erect houses and adjacent buildings in places where everything is surrounded by forest, beautiful nature, there is not easy ground for construction work, and there are even no high-grade expensive ones.

Naturally, in addition to the main building, premises for storing a car will certainly be built, and more often than not, it is required first of all to build a garage, and only then a house. What to do if you need to build a garage on a slope?

Construction option

Most of the problems are related to how to tie it up without high costs and at the same time correctly, efficiently foundation to the terrain, if the latter is inclined. The correctness and choice of a technical solution for the arrangement as a whole will depend on how the garage will be connected with the house:

  1. Slope garage - how to build it? Step by step instructions - Tips + Photos and Videos In the form of a base , since this is the most common option for the construction of two buildings in the form of a single complex.

  2. In the form of an extension , that is, it will be an additional building near a residential building or an ordinary building.
  3. In the form of a separate building , which will be located far from the house, have access roads and parking areas.

Please note, that whichever option you choose, you still have to solve one big and main problem - creating a solid and stable foundation, and even if you build a one-story structure , will require tight ground retention measures.

Most often, for the option with a basement and an extension, they use the classics - this is a pile or strip foundation. The base in this case plays the role of a support or anchor, which helps the room for the car to be held on the side of a mountain or hill.

Stages of arrangement

Selection of the foundation

The basis in the form of a foundation on a slope, made on a slope, turns out to be somewhat more complex in design and more expensive in terms of finance, therefore, experts advise using the classic version of the foundation under the foundation, which will be insensitive to the difference in the level of the earth's surface:

  1. At slope angles that are considered small (up to 8 degrees), the foundation for the project A slope garage can be done using standard leveling of the surface, and with additional bedding in the form of a terrace in the adjacent area. In this case, the soil should be well compacted using a mixture of gravel and sand, as well as laying geotextiles and drainage on the top of the slope. If the slope is very shallow, pile slabs can be used instead of tape.
  2. A good option is a foundation, which is in the form of a slab cast from concrete, which will be laid on a strip foundation with different levels, as well as with the use of filling and tamping the earth near the bottom of the garage.This solution is often used if the slope angle reaches up to 10 degrees.

  3. The foundation massif is cast in the form of a slab, which has a pile anchorage to the ground; in such a structure, it is provided for 1/2 deepening in the ground in the horizontal direction. This method is used if the slope angle is up to 20 degrees. If the angle is steeper, the building should be placed on piles in the form of a cascade of terraces of different levels.

Please note, that the arrangement of good waterproofing of the rear and side walls in the garage plays a huge role.

Usually, for the construction of the rear support and side parts that support the earth overhanging from the slope, special masonry is used from foundation blocks, which has a thickness of 0.

3 to 0.4 meters. As the watering of the ground occurs, when snow melts or heavy rain, the waterproofing on the back wall of the garage will not withstand and the garage can simply pour through the joints between the blocks and numerous seams.

In this case, a house with a garage on a slope can be saved only by the creation of an additional drainage system, or by dividing the garage wall at the back using a false bulkhead, which will help to move the slope cut by 0.4-0.

5 meters from the back wall. Thanks to this, the water will not flood the garage, but will go to the storm drain of the blind area at the rear of the building.

Foundation on a hillside - example

For example, let's consider arranging a foundation on a slope angle with a value from 14 to 18 degrees, where the solution to the problem there will be an arrangement of the box and foundation, which will be cut into the hillside, like a photo of a garage on a hillside.

The foundation is made in the form of a monolithic slab, which is equipped on a sand cushion, and the slab is cast according to the usual scheme using double reinforcement with rods and laying contour and bottom drainage. Part of the side and back walls are made in the form of a concrete casting with a steel reinforcement cage.

This part of the building is intended to be completely immersed in the slope, as it was made according to the cast scheme, that is, without seams. The remaining side walls and facade are simply laid out; for this, concrete blocks can be used.

Outside, make and lay a three-layer reinforced waterproofing, as well as a layer of insulation, and then the space between the ground and the walls should be covered with pressed clay. This will give you a fairly strong and water-resistant construction.

Slope garage project

If you take a good look at various architectural solutions, then most of them can be built on any slope, since the most important - this is a correctly implemented binding to a residential building.

Classic binding methods

The most popular option is to equip the garage space in the form of a basement, which is located along the slope and its directrix.The convenience and practicality of such a solution does not give any reason to doubt, but it is worth building a garage in the basement only if the building is massive and near a gentle hill.

If the angle of inclination changes on the surface, then you will have to use a structure with a strong deepening of the garage and basement into the ground, and perhaps even with a small gap in the first floor on the supports - pile columns. The garage box on a covered slope will make it possible to "tear" it away from the main residential building and move it away from the facade, thereby freeing up space to create a flat area for an open terrace or garden in front of the house. If you wish, you can make a garage in such a way that it will be, as it were, hidden in an artificially created tunnel, which will be directly to the house.

If the elephant has a large enough angle of inclination, then the simplest option would be to refuse the basement to create a pile foundation, and in this case, the ideal arrangement would be to place a garage on the first floor of the house.

If you need to "pull out" the garage box, the ideal way would be to create a slab foundation on reinforced concrete piles. Piles with any thickness of the fertile and clay layer of the earth will reach the base, and this will ensure the stability of the position of the structure in any weather and with any wind load on the building.

Practical constructions

For steep slopes, houses are mostly built in the form of a terrace area, which is installed on short piles. When using new materials and solutions, you can take an original approach to this issue of arranging a garage on a hillside.

The designers suggest forgetting about the standard way of hiding a car in the basement or an extension, and making a garage on the second floor of the house, as well as making a drive in the form of a curved serpentine, and this has a number of advantages:

  1. The first is that the garage will be located above the slope, which means that instead of a heavy concrete foundation, you can install a lightweight frame option.
  2. Second, the storage conditions of the vehicle are much better than if the garage was in the basement.
  3. Third - such a garage will cost several times cheaper than the basement version.

In this case, the garage space is made in the form of an extension, which is located on the second floor or even at the level of the building's roof. Under such conditions, the easiest way is to reinforce the piles and load-bearing elements on the upper floor, and make a garage room out of the attic.

Warming up in the sun will keep the extension warm and dry even in winter, and all you need to do is install a solid roof instead of drainage and foundation slabs.


So, after laying the base, the floor should be waterproofed with one or two layers of roofing material, cement mortar with a thickness of 2 cm or roofing tar. The foundation must be leveled. To do this, use a spirit level to attach the horizontal slats on both sides of the base.Between them you need to pour the solution and level the surface well.

When everything is dry, let's start laying the walls. Here you should check the level of the masonry according to the level.

The work is carried out in the following order:

  1. In the corners, orders are placed, which are wooden slats with divisions, and between them a distance of 77 mm ...

  2. The height of a brick laid flat is equal to one division of the order.
  3. Then, between these two elements, pull thin laces from one corner to another, and check the horizontal position.
  4. Without mortar, bricks should be laid with a gap equal to the thickness of the joint, this is approximately 13 mm.
  5. Pull the cord, and at the same time step back from the edge of the wall about a couple of mm, which will allow the cord not to move during laying.
  6. Apply a portion of the mortar with a trowel and start laying the bricks.

  7. Then knock on the brick with the handle of the tool and press it so that the seam becomes 13 mm thick, and the top of the brick is on the line of the cord
  8. Lay the bricks in the same way, and at the same time fill well all gaps.
  9. Remove excess so that the seam from the face is level.

The rest of the work, such as roofing and cladding, is carried out as for a conventional garage.


If there is a steep slope on the site, this does not mean that the construction of a car storage room will not work. On the contrary, with the skillful use of the advantages of the basement floor, you can build a two-story room, and at the same time, according to the legislation, it will be considered one-story, which has an enlarged basement part.