This PRORETA 12 houseboat is our grand idea a true holiday home on the water, for up to six people. It’s large and luxurious enough for two people to permanently live onboard.

OLYMPUS DIGITAL CAMERAFor travelling between Budapest and Paris, Stockholm and Bordeaux. Or passing through Hamburg, Berlin or Vienna along the way on inland waterways or along the coast.

In addition to the Owner’s Suite at the rear, this PRORETA offers another spacious cabin in the hulk with ample headroom – for two adults or up to four children. A comfortable double sofa bed in the living room makes room to accommodate yet another two people. So with all this space in the bow and at the stern / rear, a family of four lives and sleeps at ease. And they can even welcome yet another family of four to stay over night. This is family living. And this is how it should be.

Tow flights of stairs, one inside and one outside, lead up to the 540 square feet / 50 square meter roof terrace. And the bow platform, accessible through a broad sliding door from the living room, can be turned into yet another terrace. Its height can be altered from floor level to just below the water line. Just perfect for a little splash on a hot summer’s day. And afterwards it simply retracts into the hulk. All walls, ceilings and floors are at least insulated with 2.2’’ / 60 mm RexWall™ hard foam. This keeps the heat out in summer and in winter the heat from the stove inside.



  • Mr. Prof. Dr.-Ing. Stefan Sasse – European Patent Attorney
  • Design © All construction right by Deutsche Composite
  • Animation of the architecture: < Video >
  • Brochure  < P12 >

Maintenance-free hassle:

  • 11,8m x 4,2m building dimensions
  • 11,8m x 4,8m fold-out dimensions with catwalks
  • Staircase and railing made of stainless steel
  • Exterior cover with weather resistant plastic bottom
  • Construction RexWall 70mm insulated FRP high-gloss sandwich
  • Central air heating; optional tele control
  • Ventilation system, automatic draft valves
  • Electrical; CEE Connection, fuse box, lighting
  • Window with dark gray frame
  • roof box optional


  • Epoxy honeycomb
  • Fresh water, black water and fuel tanks
  • Catwalk as a plug-in system
  • Use of HPL or WPC panels
  • Steering column, engine mount
  • Bow thruster, 6 bilge pumps
  • 6 cleats

Usable area 94qm:

  • 44sqm of living space
  • 44sqm sun deck
  • 6qm catwalk

Rooms with 6 beds:

  • Living room with open kitchen
  • Sofa with double bed function
  • Owner`s suite with queen size bedroom
  • Hatch cabin for 2 beds or storage room
  • Bathroom with large window, Shower / WC, washbasin
  • Design real wood floor with rubber
  • Many storage rooms


Feasibility study

This post also available in German

2 Replies to “PRORETA 12”

  1. Dear Sir
    I am interested to buy a houseboat. The project P12 seems very interesting. I live in Sitges on the sea, 20 km south from Barcelona. If possible, send me price information.

    Thank you very much for your attention.

    Best regards,

    1. Up from 250.000 EUR

      Proreta 12:
      * Classification D – inland waters
      * Inboard VOLVO Marine Engine
      * Construction with RexWall high insulated walls
      * Basic construction, turnkey ready without kitchen
      * Classification C – aluminium pontoon ALMG 3 for sea water

      Dimensions 11.80 m x 4.80 m (38.72` feet x 15.75` feet)
      Height 4.00 m (13.12` feet) total
      Drought 0.60 m (1.97` feet) max.
      Freeboard 0.62 m (2.03` feet)

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