ᐅ Alternative to a flat roof

Created on: 9 Oct 2014 14:12
S
Sheriff
Hello everyone,

We are currently planning our own home. We are making some progress, but the local development plan is limiting us regarding the roof design. It states: "For the main building structures, only gable roofs, shed roofs, hip roofs, and half-hip roofs, as well as combinations of gable and shed roofs, are permitted. Flat roofs are still allowed for covered parking spaces and garages."

Attached are the first 3D views of our design. We believe that only a flat roof would fit, especially since we do not want an additional (half) storey.

Do you have any suggestions on which roof style might be suitable in this case?

Thank you very much

Modern single-family house with a flat roof on a large green property; isometric view.


Modern, flat single-family house architecture on a green plot with driveway and fencing.
W
Wastl
14 Oct 2014 08:37
Which roof style is suitable:
The roof styles that are allowed. For example, gable roof, hip roof, shed roof.
I would start the planning process from scratch. Let go of the previous plans and start fresh. You have fallen in love with a house that you are not allowed to build. So a new plan is needed, a new overall concept, and not "just" a different roof style.
S
Sunnx
15 Oct 2014 13:59
How about the permitted 30° gable roof without eaves and with internal drainage? We originally wanted a flat roof as well, but for various reasons (the building permit / planning permission allowed it) we decided on the proposed option (although with 22°) and actually find it even more attractive, since this type is quite rare here in the region.
S
Sheriff
15 Oct 2014 17:34
Thanks for the tip! We also ran a simulation with a 30° gable roof and internal drainage, see attachment. It doesn’t look that bad, but ideally, we would prefer to make it even flatter since we do not plan to convert the attic. In our opinion, a flatter roof would better suit the style of the house.

3D-Render eines modernen Einfamilienhauses, Außenansicht mit Fronttreppe


Moderne zweistöckige weiße Villa mit großen Glasfronten und Terrasse
S
Sheriff
15 Oct 2014 19:50
The question is, of course, how far the roof can be set back from the exterior wall inwardly—that is, how much space can be allowed for the internal drainage—without it being considered a combination of a pitched roof and a flat roof.
K
Karl.A.
22 May 2015 23:29
I have also considered a similar alternative because flat roofs (except for the garage) are not allowed under our development plan. What I wonder is whether you can classify a flat roof as a large roof terrace by adding a small upper floor with, for example, a hipped roof (see attachment). As far as I know, a flat roof is no longer considered a flat roof once a railing of about 90–100 cm (35–39 inches) is installed around it. Then it qualifies as a roof terrace and would be allowed, provided the roof required by the development plan is also present.

In my attached design, a shallow hipped roof with about 15° (< pitch allowed here) and a small roof overhang (20 cm (8 inches)) is planned over the 65 m² (700 sq ft) upper floor. Above that, there is access to the 60 m² (645 sq ft) L-shaped roof terrace with a masonry “railing.”

These are just initial ideas for us and probably not financially feasible. But maybe it’s a good starting point to still achieve a fairly modern house with cubic elements and some flat roof character. Perhaps it can serve as inspiration.

Moderne weiße Villa mit großen bodentiefen Fenstern, Eingangsbereich, Garage und drei Sträucher


Obenansicht eines Gebäudes mit großem Dach, Terrasse, Garten, Bäumen und Lounge-Stühlen.


Modernes weißes Zweistöckhaus mit Dachterrasse, Pflanzkübeln und Garage.