Kooijman en de Vries Grundel
Basic data
| Category: | Sailboat |
| Year of construction: | 1973 |
| Length: | 905 cm |
| width: | 300 cm |
| Depth: | 50 cm |
| Material: | Steel |
| Motorization: | Buck |
| Berth: |
Werkendam, Netherlands
|
Specifications
Kooijman en De Vries Grundel (1973) – steel flat-bottom motor sailer 10.50 metres with bow thruster and rigging
Anyone looking for a characterful Grundel flat-bottom with the charm of classic Dutch craftsmanship will find this Kooijman and De Vries Grundel from 1973 an attractive and versatile vessel. With her steel hull, shallow draft and practical layout, this type of motor sailer is ideally suited to relaxed cruising on inland waterways, rivers, canals, lakes and lochs. The boat has been used for day trips, weekends away and holidays, with scenery including nature areas such as the Biesbosch, where quiet anchoring and staying put for longer is often the real pleasure.
Her dimensions make her interesting for those who want space on board without the vessel becoming awkward in marinas or narrow waterways. With a length of approx. 10.50 metres and a beam of 3.00 metres, this Grundel offers stable, confidence-inspiring handling. The draft of around 50 cm is a major plus: shallow creeks, reed beds and sheltered anchorages are within reach, while the flat-bottom shape contributes to a calm, steady position in the water.
Kooijman and De Vries Grundel now in the online auction. Anyone can bid up to and including 20 April 2026.
Cruising experience and performance: comfortable on inland waters and rivers
Propulsion is via a diesel inboard with electric start. The stated cruising speed is around 12 km/h, with a maximum of approx. 18 km/h, making this Grundel suitable for both relaxed cruising and brisk transfers between cruising areas. On board you’ll find the essential gauges, including a fuel gauge, oil pressure gauge and tachometer, so you can keep a clear overview while underway.
Harbour manoeuvring is supported by an electric bow thruster (recently installed), a valuable addition in crosswinds or tight berths. Steering is via a tiller from the outside helm position, which suits the open, direct character of a flat-bottom: you cruise close to the water with good all-round visibility and a classic helming feel.
Rigging and mast: motor sailer with options
This Grundel is supplied including rigging and sails. The sail plan includes a mainsail, jib and storm jib. The current owners have mainly cruised under engine, but the sailing equipment is present for those who want to start sailing or simply like having the option to travel more quietly and economically in favourable winds. A practical detail is that a shorter mast has been fitted to make it easier to pass under bridges; the original wooden mast for sailing of approx. 8 metres is also included. This allows you to tailor the boat to your cruising area: low air draft requirements or, alternatively, more sail area and a classic appearance.
Interior and comfort: cosy “home on the water”
Inside, the boat is set up for comfortable stays on board. You’ll find a dinette, mattresses, a cooker and a refrigerator, making weekend trips and longer cruises perfectly feasible. Headroom inside is approx. 1.70 metres, typical for this type of vessel. There are two fixed berths plus two additional berths, offering flexibility for guests or (grand)children. With a 300-litre water tank and a 300-litre diesel tank, onboard autonomy is pleasant for those who like to cruise and anchor for several days in a row.
The toilet is manually operated and has been renewed recently. Buyers should note that the toilet discharge goes directly to open water; depending on your cruising area and personal preference, this may be a reason to consider modifications.
Electrical system and equipment: shore power and solar energy
The electrical system is designed for practical use during trips and while in the marina. On board you’ll find, among other things, shore power, a battery charger, alternator, voltmeter and an inverter. In addition, a solar panel has been installed (with Victron MPPT controller as stated), which helps keep the batteries topped up when at anchor or staying in a nature area. In total there are three batteries with a combined capacity of around 180 Ah (12V), suitable for running basic onboard consumers.
Maintenance and points of attention: woodwork
The boat was taken out of the water in 2023, and antifouling was applied that year as well. In the recent period, several improvements have been carried out, including work on the water tank (coating treatment), overhaul of the gearbox, hull paintwork, and installation of an hour meter and deck wash pump. The exterior woodwork requires attention; this gives a buyer the opportunity to bring the boat cosmetically to their own taste and further enhance the classic look.
Who is this Grundel suitable for?
This steel Grundel motor sailer is a great choice for watersports enthusiasts who love the traditional flat-bottom feel, enjoy exploring shallow cruising grounds and value a cosy, practical living space. Whether you dream of quiet weekends in nature, trips along rivers and lakes, or you’re looking for a classic vessel with both engine and sailing capabilities: this Kooijman and De Vries Grundel offers a broadly usable platform with character and equipment that invites you to head straight out onto the water.
ADDITIONAL INFORMATION
- We advise making use of the viewing day.
- The boat is in the water.
- This boat is sold without a trailer.
- This boat is sold under general auction conditions.
- This concerns a public auction, which means that the purchase cannot be returned based on the legal right of withdrawal.
| Brand | Kooijman en de Vries |
| Type | Grundel |
| Length | 905 |
| Width | 300 |
| Depth | 50 |
| Clearance height | 250 |
| Year of construction | 1973 |
| Material | Steel |
| Number of sleeping places (fixed) | 2 |
| Number of sleeping places (extra) | 2 |
| Standing height indoors | 170 |
| Last antifouling treatment | 2023 |
| Control | Tiller |
| Location control | Outside |
| Rudder | Single |
| Separate dining area | |
| Fridge | |
| Cooker | |
| Curtains | |
| Water tank capacity in liters | 300 |
| Toilet | Manual |
| Does the toilet drain directly into the open water | Yes |
| Heating | N/A |
| Dinghy | No |
| Self-draining cockpit | |
| Is a trailer included? | No |
| Weight (kg) | 6000 |
| Anchor(s) | 1 |
| Anchor attachment | Chain Line |
| Windlass | Hand |
| Fenders and lines |
| Number of engines | 1 |
| Is the engine operational | The engine is operational |
| Start typing | Electric |
| Maximum speed | kilometers per hour | 18 |
| Engine type | Inboard |
| Brand motor | Buck |
| Model engine | DV36 |
| Power (hp) | 36 |
| Number of cylinders | 3 |
| Fuel | Diesel |
| Tank capacity in liters | 300 |
| Fuel Tank Gauge | |
| Oil Pressure Gauge | |
| Tachometer | |
| Bow thruster | Electric |
| Number of batteries present | 3 |
| Total battery capacity | 180 |
| Battery charger | |
| Alternator | |
| Inverter | |
| Voltmeter | |
| Shore power | |
| Solar panel | |
| 12V |
| Number of masts | 1 |
| Mast material | Wood |
| Number of sails | 2 |
| State of the sails | Good |
| Jib | |
| Main sail | |
| Storm jib |
Kooijman en De Vries Grundel (1973) – steel flat-bottom motor sailer 10.50 metres with bow thruster and rigging
Anyone looking for a characterful Grundel flat-bottom with the charm of classic Dutch craftsmanship will find this Kooijman and De Vries Grundel from 1973 an attractive and versatile vessel. With her steel hull, shallow draft and practical layout, this type of motor sailer is ideally suited to relaxed cruising on inland waterways, rivers, canals, lakes and lochs. The boat has been used for day trips, weekends away and holidays, with scenery including nature areas such as the Biesbosch, where quiet anchoring and staying put for longer is often the real pleasure.
Her dimensions make her interesting for those who want space on board without the vessel becoming awkward in marinas or narrow waterways. With a length of approx. 10.50 metres and a beam of 3.00 metres, this Grundel offers stable, confidence-inspiring handling. The draft of around 50 cm is a major plus: shallow creeks, reed beds and sheltered anchorages are within reach, while the flat-bottom shape contributes to a calm, steady position in the water.
Kooijman and De Vries Grundel now in the online auction. Anyone can bid up to and including 20 April 2026.
Cruising experience and performance: comfortable on inland waters and rivers
Propulsion is via a diesel inboard with electric start. The stated cruising speed is around 12 km/h, with a maximum of approx. 18 km/h, making this Grundel suitable for both relaxed cruising and brisk transfers between cruising areas. On board you’ll find the essential gauges, including a fuel gauge, oil pressure gauge and tachometer, so you can keep a clear overview while underway.
Harbour manoeuvring is supported by an electric bow thruster (recently installed), a valuable addition in crosswinds or tight berths. Steering is via a tiller from the outside helm position, which suits the open, direct character of a flat-bottom: you cruise close to the water with good all-round visibility and a classic helming feel.
Rigging and mast: motor sailer with options
This Grundel is supplied including rigging and sails. The sail plan includes a mainsail, jib and storm jib. The current owners have mainly cruised under engine, but the sailing equipment is present for those who want to start sailing or simply like having the option to travel more quietly and economically in favourable winds. A practical detail is that a shorter mast has been fitted to make it easier to pass under bridges; the original wooden mast for sailing of approx. 8 metres is also included. This allows you to tailor the boat to your cruising area: low air draft requirements or, alternatively, more sail area and a classic appearance.
Interior and comfort: cosy “home on the water”
Inside, the boat is set up for comfortable stays on board. You’ll find a dinette, mattresses, a cooker and a refrigerator, making weekend trips and longer cruises perfectly feasible. Headroom inside is approx. 1.70 metres, typical for this type of vessel. There are two fixed berths plus two additional berths, offering flexibility for guests or (grand)children. With a 300-litre water tank and a 300-litre diesel tank, onboard autonomy is pleasant for those who like to cruise and anchor for several days in a row.
The toilet is manually operated and has been renewed recently. Buyers should note that the toilet discharge goes directly to open water; depending on your cruising area and personal preference, this may be a reason to consider modifications.
Electrical system and equipment: shore power and solar energy
The electrical system is designed for practical use during trips and while in the marina. On board you’ll find, among other things, shore power, a battery charger, alternator, voltmeter and an inverter. In addition, a solar panel has been installed (with Victron MPPT controller as stated), which helps keep the batteries topped up when at anchor or staying in a nature area. In total there are three batteries with a combined capacity of around 180 Ah (12V), suitable for running basic onboard consumers.
Maintenance and points of attention: woodwork
The boat was taken out of the water in 2023, and antifouling was applied that year as well. In the recent period, several improvements have been carried out, including work on the water tank (coating treatment), overhaul of the gearbox, hull paintwork, and installation of an hour meter and deck wash pump. The exterior woodwork requires attention; this gives a buyer the opportunity to bring the boat cosmetically to their own taste and further enhance the classic look.
Who is this Grundel suitable for?
This steel Grundel motor sailer is a great choice for watersports enthusiasts who love the traditional flat-bottom feel, enjoy exploring shallow cruising grounds and value a cosy, practical living space. Whether you dream of quiet weekends in nature, trips along rivers and lakes, or you’re looking for a classic vessel with both engine and sailing capabilities: this Kooijman and De Vries Grundel offers a broadly usable platform with character and equipment that invites you to head straight out onto the water.
VIEWING DAY INFORMATION
- The viewing day of this Kooijman en de Vries Grundel is on Saturday 18 April 2026 van 10:00 until 12:00 in Werkendam (NL).
ADDITIONAL INFORMATION
- We advise making use of the viewing day.
- The boat is in the water.
- This boat is sold without a trailer.
- This boat is sold under general auction conditions.
- This concerns a public auction, which means that the purchase cannot be returned based on the legal right of withdrawal.
| Brand | Kooijman en de Vries |
| Type | Grundel |
| Length | 905 |
| Width | 300 |
| Depth | 50 |
| Clearance height | 250 |
| Year of construction | 1973 |
| Material | Steel |
| Number of sleeping places (fixed) | 2 |
| Number of sleeping places (extra) | 2 |
| Standing height indoors | 170 |
| Last antifouling treatment | 2023 |
| Control | Tiller |
| Location control | Outside |
| Rudder | Single |
| Separate dining area | |
| Fridge | |
| Cooker | |
| Curtains | |
| Water tank capacity in liters | 300 |
| Toilet | Manual |
| Does the toilet drain directly into the open water | Yes |
| Heating | N/A |
| Dinghy | No |
| Self-draining cockpit | |
| Is a trailer included? | No |
| Weight (kg) | 6000 |
| Anchor(s) | 1 |
| Anchor attachment | Chain Line |
| Windlass | Hand |
| Fenders and lines |
| Number of engines | 1 |
| Is the engine operational | The engine is operational |
| Start typing | Electric |
| Maximum speed | kilometers per hour | 18 |
| Engine type | Inboard |
| Brand motor | Buck |
| Model engine | DV36 |
| Power (hp) | 36 |
| Number of cylinders | 3 |
| Fuel | Diesel |
| Tank capacity in liters | 300 |
| Fuel Tank Gauge | |
| Oil Pressure Gauge | |
| Tachometer | |
| Bow thruster | Electric |
| Number of batteries present | 3 |
| Total battery capacity | 180 |
| Battery charger | |
| Alternator | |
| Inverter | |
| Voltmeter | |
| Shore power | |
| Solar panel | |
| 12V |
| Number of masts | 1 |
| Mast material | Wood |
| Number of sails | 2 |
| State of the sails | Good |
| Jib | |
| Main sail | |
| Storm jib |
