Why we need Help to Build, not Buy

The public recognises what too many politicians do not; that a mass Macmillan-style programme of housebuilding is the only solution to the housing crisis.

Outside of the Treasury, it is hard to find anyone who thinks Help to Buy is a good idea. Vince Cable, Mervyn King, the TUC, the IMF, the Institute of Directors and the Office for Budget Responsibility have all warned that the scheme –which allows borrowers to take out a 95 per cent mortgage, with the government backing part of their loan –will inflate demand without increasing supply and create the conditions for another housing crash.

If few doubt that George Osborne’s wheeze is bad economics, the consensus remains that it is smart politics. The logic runs that by widening home ownership, Help to Buy will enable the Tories to win over young, aspirational voters in the same way that Margaret Thatcher’s Right to Buy did a generation ago. In an attempt to emulate the images of Thatcher handing the keys to those who bought their council homes, David Cameron has asked staff to arrange for him to meet those who have benefited from the scheme whenever he visits a marginal constituency. Help to Buy is, he says, “about social mobility . . . about helping people who don’t have rich parents to get on and achieve their dream of home ownership”. He was keen to stress that the average price of a house bought under the scheme is £163,000, with most located outside of London and the south-east, and that three-quarters of the 2,384 applicants are first-time buyers (a quarter, it follows, are not).

The Tories believe that they will derive another electoral benefit as rising prices create a feel-good factor among existing owners, 45 per cent of whom voted Conservative in 2010. Osborne is reported to have told the cabinet: “Hopefully we will get a little housing boom and everyone will be happy as property values go up.”

This vision of a nation hooked on the narcotic of rising prices is at odds with reality. A poll last month by YouGov for Shelter found that 66 per cent of the public do not want house prices to increase. That figure is up 8 percentage points since June, the period in which Help to Buy was fully launched. This trend holds among outright homeowners (67 per cent of whom want prices to fall or stay the same), Conservative voters (65 per cent), Labour voters (66 per cent), Liberal Democrat voters (73 per cent), readers of the Daily Mail (66 per cent) and readers of the Daily Express (65 per cent). Chastened by the experience of the crash and anxious at the lack of affordable housing for the young, the public no longer views rising prices as an unqualified good.

If the impression develops that the government is focused on maximising prices at the expense of supply, Help to Buy could prove to be a net negative. The number lifted on to the property ladder will be matched or exceeded by the number for whom the idea of owning their own home moves ever further out of reach. And those unable to buy will resent subsidising mortgages for properties worth up to £600,000 –more than three times the national average.

The public recognises what too many politicians do not; that a mass Macmillan-style programme of housebuilding is the only solution to the housing crisis. Merely to keep pace with the rising number of households, the UK needs a minimum of 1.5 million new homes to be built by 2020.

Yet in the same week that ministers lauded Help to Buy, government figures showed that the net supply of housing rose by just 124,270 in 2012- 2013, a fall of 8 per cent since 2011-2012 and the lowest number on record. It is Help to Build, not Help to Buy, that Britain needs. The Tories should not assume that their disavowal of this will go unpunished.

Why aren't we building enough houses? Image: Getty

George Eaton is political editor of the New Statesman.

This article first appeared in the 13 November 2013 issue of the New Statesman, The New Exodus

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Inside Big Ben: why the world’s most famous clock will soon lose its bong

Every now and then, even the most famous of clocks need a bit of care.

London is soon going to lose one of its most familiar sounds when the world-famous Big Ben falls silent for repairs. The “bonging” chimes that have marked the passing of time for Londoners since 1859 will fall silent for months beginning in 2017 as part of a three-year £29m conservation project.

Of course, “Big Ben” is the nickname of the Great Bell and the bell itself is not in bad shape – even though it does have a huge crack in it.

The bell weighs nearly 14 tonnes and it cracked in 1859 when it was first bonged with a hammer that was way too heavy.

The crack was never repaired. Instead the bell was rotated one eighth of a turn and a lighter (200kg) hammer was installed. The cracked bell has a characteristic sound which we have all grown to love.

Big Ben strikes. UK Parliament.

Instead, it is the Elizabeth Tower (1859) and the clock mechanism (1854), designed by Denison and Airy, that need attention.

Any building or machine needs regular maintenance – we paint our doors and windows when they need it and we repair or replace our cars quite routinely. It is convenient to choose a day when we’re out of the house to paint the doors, or when we don’t need the car to repair the brakes. But a clock just doesn’t stop – especially not a clock as iconic as the Great Clock at the Palace of Westminster.

Repairs to the tower are long overdue. There is corrosion damage to the cast iron roof and to the belfry structure which keeps the bells in place. There is water damage to the masonry and condensation problems will be addressed, too. There are plumbing and electrical works to be done for a lift to be installed in one of the ventilation shafts, toilet facilities and the fitting of low-energy lighting.

Marvel of engineering

The clock mechanism itself is remarkable. In its 162-year history it has only had one major breakdown. In 1976 the speed regulator for the chimes broke and the mechanism sped up to destruction. The resulting damage took months to repair.

The weights that drive the clock are, like the bells and hammers, unimaginably huge. The “drive train” that keeps the pendulum swinging and that turns the hands is driven by a weight of about 100kg. Two other weights that ring the bells are each over a tonne. If any of these weights falls out of control (as in the 1976 incident), they could do a lot of damage.

The pendulum suspension spring is especially critical because it holds up the huge pendulum bob which weighs 321kg. The swinging pendulum releases the “escapement” every two seconds which then turns the hands on the clock’s four faces. If you look very closely, you will see that the minute hand doesn’t move smoothly but it sits still most of the time, only moving on each tick by 1.5cm.

The pendulum swings back and forth 21,600 times a day. That’s nearly 8m times a year, bending the pendulum spring. Like any metal, it has the potential to suffer from fatigue. The pendulum needs to be lifted out of the clock so that the spring can be closely inspected.

The clock derives its remarkable accuracy in part from the temperature compensation which is built into the construction of the pendulum. This was yet another of John Harrison’s genius ideas (you probably know him from longitude fame). He came up with the solution of using metals of differing temperature expansion coefficient so that the pendulum doesn’t change in length as the temperature changes with the seasons.

In the Westminster clock, the pendulum shaft is made of concentric tubes of steel and zinc. A similar construction is described for the clock in Trinity College Cambridge and near perfect temperature compensation can be achieved. But zinc is a ductile metal and the tube deforms with time under the heavy load of the 321kg pendulum bob. This “creeping” will cause the temperature compensation to jam up and become less effective.

So stopping the clock will also be a good opportunity to dismantle the pendulum completely and to check that the zinc tube is sliding freely. This in itself is a few days' work.

What makes it tick

But the truly clever bit of this clock is the escapement. All clocks have one - it’s what makes the clock tick, quite literally. Denison developed his new gravity escapement especially for the Westminster clock. It decouples the driving force of the falling weight from the periodic force that maintains the motion of the pendulum. To this day, the best tower clocks in England use the gravity escapement leading to remarkable accuracy – better even than that of your quartz crystal wrist watch.

In Denison’s gravity escapement, the “tick” is the impact of the “legs” of the escapement colliding with hardened steel seats. Each collision causes microscopic damage which, accumulated over millions of collisions per year, causes wear and tear affecting the accuracy of the clock. It is impossible to inspect the escapement without stopping the clock. Part of the maintenance proposed during this stoppage is a thorough overhaul of the escapement and the other workings of the clock.

The Westminster clock is a remarkable icon for London and for England. For more than 150 years it has reminded us of each hour, tirelessly. That’s what I love about clocks – they seem to carry on without a fuss. But every now and then even the most famous of clocks need a bit of care. After this period of pampering, “Big Ben” ought to be set for another 100 or so years of trouble-free running.

The Conversation

Hugh Hunt is a Reader in Engineering Dynamics and Vibration at the University of Cambridge.

This article was originally published on The Conversation. Read the original article.