A property developer who has built a £1-million house is trying to attract buyers – by selling it with a free Ferrari.

Duncan Jones, director of B&P Jones Consultants, is giving away his Ferrari F430 Spider, worth £100,000, to entice offers on Tall Pines, a six-bedroom home in Westbury-on-Trym.

The 2005-plate F430 Spider is Rosso Corsa red and has a cream leather interior.

With a V8 engine, 490bhp under the bonnet and capable of reaching 197mph, it has just 9,000 miles on the clock and comes with a full 12-month warranty.

But to get the car, buyers must meet the full asking price on the house – a cool £1.05m.

If a Ferrari is too much of a gas-guzzler for the eco-conscious, Mr Jones is offering an alternative of a Lexus RX 400h Hybrid and mortgage interest payments for a year.

Mr Jones, who is 28, bought the Ferrari specifically to give it away with the mock-Georgian home.

He said: "If you have a million-pound house you should have a Ferrari."

Tall Pines, built on a former greenfield site, first went on the market two-and-a-half months ago.

There was a lot of early interest, but prospective buyers pulled out.

Mr Jones said: "The problem has been the economy ruining their opportunity to purchase.

"If you had a 30 per cent deposit that would be £320,000, and for people to have that sort of money at the moment is very, very difficult with the credit crunch biting."

Tall Pines, on Henbury Road, Westbury-on-Trym, is a cream building accessed through electric gates.

Set in just over a third of an acre of landscaped gardens, the six-bedroom home has been designed to the latest in eco-build standards.

Throughout the three-storey house are ways to reduce energy bills and increase efficiency.

The roof and walls have thick insulation and the windows are extra-thick and sealed to keep heat in, and 25 per cent of the property has efficient LED lights.

In the attic are four 250-gallon water butts, which collect and store water that can be used for flushing the toilet and watering the garden, and there is also a ventilation system that changes the air in the property every two hours, replacing stale air with fresh air.

As well as the six bedrooms – three of which are en suite, with his and hers basins – there is a main bathroom, a kitchen/dining room, drawing room, sun room, a snug, utility room and a downstairs loo.

There is a multi-media network throughout the house so you can have phone and internet access, Sky TV and DVD in every room.

The kitchen and bathrooms have been designed to a top specification by Porcelanosa.

The new owner will be able to choose everything from the carpets and the colour of the walls to the thickness of the skirting boards.

Duncan and his father, who run B&P Jones Consultants and help people reduce their carbon footprint through their business Less Carbon Link, want Tall Pines to set the standard for energy efficiency in years to come.

He said: "It's not what you can see, it's what it's constructed of.

"This is what a property will be constructed of in the future.

"Building regulations are constantly changing. They have to change because of the demand for energy, for heating and the need to save the environment."

Mr Jones, who lives with his wife and four children in a barn conversion in Wraxall, hopes that giving away his Ferrari with Tall Pines will help restore something positive to the building economy.

He said: "At the moment everything is doom and gloom – people can't have this, and they can't have that.

"What we are saying is that if you can afford to have this house, you can have my Ferrari for free. But the buyer will have to pay the full asking price to get it.

"Some people might say I am mad, but entrepreneurs in this day and age make money because they do something different, and that is the difference."

For more information, call Duncan Jones on 07901 676142.