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Current Price: £45,000 (Tax Paid)

Boat Details Print this page

27.89ft / 8.5m
10.83ft / 3.3m
Yanmar 30YGM Inboard diesel 30 horsepower x2
Ref #:
Located In:
Sunbury-on-Thames, United Kingdom
Hull Material:
Cat Nap

2010 North Quay 28 Catamaran for sale. Viewing by appointment only, this boat is not at Shepperton Marina!

Owners Description.

Cat Nap is an 8.5metre catamaran motorboat with “standard” 3.3metre beam.  She is much admired as a beautiful boat, yet is thoroughly practical as a coastal/river cruiser.  She is unique, a one-off designed as a “Land Rover” - go anywhere/do anything with big safety margins (2 engines/2 fuel tanks/4 batteries) but with comforts to make prolonged cruising a pleasure – our longest was 6 weeks from the non-tidal Thames in west London to Cornwall, via Cherbourg.  She has been up the Thames as far as Abingdon; around the east coast to Wells Next the Sea and the Norfolk Broads; and into most south coast harbours/anchorages from the Medway to Fowey in Cornwall.  She is in excellent condition and fully equipped for cruising.


She was built by North Quay Marine on the River Swale and completed in 2010 – constructed of strip cedar sheathed in epoxy inside and out; marine ply deck topped with Sea-Dek (2nd generation teak effect) January 2019; wooden wheelhouse with trawler style windows for excellent visibility in dry/shelter.  Seating for 4 at a table in the wheelhouse.  Removable helm seat.  Hob, oven, sink and fridge in easy reach.  With seat backs removed, she has 2 full sized berths in the wheelhouse but it would be possible to add 2 bunks in the starboard hull if you wish to share your space.  There is a great deal of locker and storage space throughout.


The hulls are deep (draws 0.5metre) and narrow, to be easily driven.  She is quite happy using one engine on the river.  The bridge deck between the hulls is high so she doesn't slam even into the largest waves.  At sea she cruises at 7 to 7.5 knots and this is very economical as the engines are modern 30hp units.  With an engine in each hull she can be turned in her own length (one in reverse, one ahead) and manoeuvring is easy in locks and marinas.  When the tide goes out she can take the ground or go shallow creek-hopping..

Technical Details

Type:  North Quay 28

Registered SSR140365 (renewed June 2019)

Recreational Craft Directive – Category D (coastal)

Radio Licence 1-132335184; call sign 2CVM6;  MMSI 235076122

Boat Safety Cert 2/11/2022

Full detailed invoices with all VAT paid.


2 Yanmar 30YGM diesel engines – approximately 1,100 hours.  Fuel filters, engine and gearbox oil, water pump impellers changed September 2022.  Spare impeller kits and fan belts available. Straight propeller shafts with water lubrication.  Shaft anodes (Vetus) spares available.

Hempel Tiger Xtra antifoul – September 2020.

2 100 litre Tek Tank fuel tanks, sited midships.  Filler caps on the foredeck with anti-splash fittings.

2 215 litre water tanks forward in each hull.  Filler cap on foredeck.  Pressurised hot and cold water system to basin/shower in port hull and sink in wheelhouse.  22 litre calorifier (with immersion heater) linked to port engine.

2 electric/automatic sump pumps and 3 manual pumps.

Electric fresh water flushing (Vetus) toilet in port hull.  100 litre holding tank in cockpit locker with smell filter, electric pump to empty at sea and cap on side deck for pump out.

Diesel fuelled Wallas 22DT heater midships under foredeck with 1 outlet by toilet and 1 in wheelhouse.

Diesel fuelled Wallas 85DU hob and 86D oven in wheelhouse (no gas on board!!).

Full 12volt power system (Merlin S200TE) with convenient switchboard.  Small Abso Sinewave 1000watt/40A inverter/charger (for phones/computers).  Victron Bluesmart IP22 battery 12v charger and 2 double 240v power sockets that are connected directly to shore power when plugged in.  Numax 12V batteries (July 2020).  Radio/CD player and speakers – car model.  Lopolight LED port/starboard navigation lights.  LED steaming light.


Modern Manson 25 anchor and 30 metres of 10mm (heavy) chain housed in central drained locker.  Simpson Laurence vertical electric anchor windlass with control switch on flexible cable for use on foredeck or inside the wheelhouse.

Raymarine Element 9S chartplotter (2020) with charts updated in May 2023

Raymarine AIS 700 system (2020)

Raymarine 49E VHF radio

Raymarine depth/speed display unit with transponders set in lower hull

Roof mounted/hand held Silva compass.

Penguin 8litre chest fridge (BB2212X) with cooling unit set through the hull for greater efficiency.

Teak rimmed steering wheel with hydraulic connection to the rudder in the port hull.  Steel connection rod to starboard rudder.  Electric rudder position indicator by the wheel.  Stainless steel spade style rudders.

Wide foredeck with 2 strong handrails – ideally placed for working in locks or picking up buoys and anchoring.  450/450 hatches into 2 hulls with detachable fly screens.  Wheelhouse with windows all round (4 opening) including forward leaning (trawler style) at front, 2 with wipers.  Excellent all round visibility.  450/450 hatch in top with fly screen. 

6 cleats spaced along each wide side deck for mooring ropes and fenders (6 cylindrical and 2 large round fenders).  Fairlead on each bow for split lines to anchor or buoy for greater stability. Deep/safe cockpit behind the wheelhouse with comfortable seats above massive lockers (we take 2 folding bikes and a folding tender).  Pull up boarding platform and folding boarding ladder – ideal height for boarding tender/paddleboard or for dangling feet in cool water.  Strong stainless steel trawler style gantry at the stern  - currently with GPS antennae but could take radar etc.

Full manuals available for all equipment.


The Company offers the details of this vessel in good faith but cannot guarantee or warrant the accuracy of this information nor warrant the condition of the vessel. A buyer should instruct his agents, or his surveyors, to investigate such details as the buyer desires validated. This vessel is offered subject to prior sale, price change, or withdrawal without notice.

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