Giving up the conservatory tax leaves the Green Deal in tatters

The government's flagship environmental policy is now tied to an unpopular measure – but they've got

We’ve had the granny tax, the pasty tax, and the caravan tax. This week the phrase "conservatory tax" was added to the lexicon of media uproar over Coalition plans.

The fuss, which started last week over an alleged attempt by the government to force honest homeowners to spend hard-earned cash on energy upgrades to their homes every time they get the builders in, has now been neutralised by heavy Downing Street briefing that Cameron will block the policy. 

However, the story of this debate about this previously obscure amendment to building regulations is particularly instructive as it goes to the heart of how the government has failed to fulfil Cameron’s pledge to be the "greenest government ever".

And furthermore, Cameron’s intervention may sound the death knell for the most genuinely progressive environmental policy from the Coalition, the Green Deal.

The story is complicated and has been widely misreported. Basically, it goes like this. In January Eric Pickles’ Communities department issued a consultation on changes to the part of building regulations that covers the energy performance of homes, called Part L. This contained a measure called, in Whitehall jargon "consequential improvements" – a policy twice considered by New Labour during its decade in office, and twice rejected by ministers as too controversial.

The policy says that whenever a homeowner makes a significant improvement to his or her home, then that home-owner also has to commit to making improvements to the energy efficiency of the rest of the house, to make it closer to the energy performance standards required in modern buildings.

Seen as vital by environmentalists, the policy makes a lot of sense in theory. More than a quarter of carbon emissions come from people’s homes. And while new houses are actually built to very high energy standards, only a very few homes are built each year, meaning the vast majority of the homes we’ll inhabit in 2050 have already been built. Therefore there is no chance of meeting the UK’s long-term carbon cutting targets without addressing the existing stock of leaky Victorian and Edwardian homes.

But clearly "consequential improvements" is politically tricky. The cost to home-owners – even more to home-improvers, the very definition of the aspirational middle class voters every politician wants to woo – is the exact reason Labour twice ditched similar plans. So why did Pickles think he could get away with it?

The answer is the Green Deal. This policy, due to come in to effect in October, will allow the upfront cost of work to increase the energy efficiency of homes to financed by the private sector. As a home owner, you then pay the cost back through your energy bills, but the scheme is designed so that the better energy efficiency of your home mean those bills will still be cheaper.

Vitally, the existence of the Green Deal meant "consequential improvements" – the so-called conservatory tax - could be introduced without triggering direct up-front costs to homeowners. Overall, quite a clever package. Together the two had the potential to be a genuinely game-changing move to make energy efficiency happen. 

But Cameron’s swift capitulation to the Daily Mail’s outrage (nevermind that your conservatory would have to be 30 sq metres to trigger the improvements), potentially leaves the Green Deal in tatters. 

The government itself predicts that without consequential improvements, the uptake of the Green Deal will be miserable. It’s estimates say that, as it coincides with the ending of the regime of utilities subsidising energy-efficiency measures, the number of loft and cavity wall insulation installations is set to plummet – by up to 93 per cent in the case of loft insulation.

The reason is that simply taking away the up-front cost of improving your home isn’t enough to get people to do it – given all the attendant hassle – even if it makes financial sense. Put simply, people just have better things to do with their time.

Consequential improvements had been seen as the one measure that could conquer this home-owner inertia. But, yet again, the Coalition seems to have shown itself unwilling to make the case for Green measures when under pressure. Consistently other priorities, notably those driven by theTreasury, win out.

As a result manufacturers of insulation fear their market being killed overnight. Meanwhile building contractors, 22 of whom signed up to deliver home-improvements under the Green Deal, are already starting to scale back their expectations of the work it will generate. The signals from the Department for Energy and Climate Change are that when October does arrive, the Green Deal roll out will be limited – essentially just a pilot.

For the industry, of course, it is not just the benefit of insulated homes that the Green Deal was expected to create, but a huge number of jobs – 65,000 was the government’s final estimate. This is now imperilled, with the inevitable impact upon economic growth (or lack of it).

Meanwhile, Tory sources seem to be briefing the Guardian that the whole thing is a mess created by the Lib Dems – even though the Green Deal was originally a Tory policy.

Unless urgent action is taken, the government’s flagship green policy in the built environment (one, incidentally, with almost total support from both greens and builders) will turn into a fiasco.

Two women speak in front of a conservatory. Photograph: Getty Images

Joey Gardiner is assistant editor at Building magazine

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Scottish Labour's defeat to the Tories confirms a political transformation

The defining divide is no longer between left and right but between unionist and nationalist.

It was Scotland where Labour's recovery was supposed to begin. Jeremy Corbyn's allies predicted that his brand of left-wing, anti-austerity politics would dent the SNP's hegemony. After becoming leader, Corbyn pledged that winning north of the border would be one of his greatest priorities. 

But in the first major elections of his leadership, it has proved to be Labour's greatest failure. A result that was long thought unthinkable has come to pass: the Conservatives have finished second (winning 31 seats). For the first time since the 1910 election, Labour has finished third (winning 24). Scottish Labour leader Kezia Dugdale stood on a left-wing platform, outflanking the SNP on tax (pledging to raise the top rate to 50p and increase the basic rate by 1p), promising to spend more on public services and opposing the renewal of Trident. But rather than advancing, the party merely retreated.

Its fate confirms how Scottish politics has been realigned. The defining divide is no longer between left and right but between unionist and nationalist. With the SNP as the only major pro-independence party, the Tories, led by the pugnacious Ruth Davidson, framed themselves as the pro-UK alternative - and prospered. In contrast, Dugdale refused to rule out supporting a second referendum and suggested that MPs and MSPs would be free to campaign for secession. The result was that Scottish Labour was left looking dangerously irrelevant. "Identity politics. Labour doesn't get it," a shadow minister told me. Its socialist pitch counted for little in a country that remains ideologically closer to England than thought. The SNP has lost its majority (denying it a mandate for a second referendum) - an outcome that the electoral system was always designed to make impossible. But its rule remains unthreatened. 

Corbyn's critics will seek to pin the baleful result on him. "We turned left and followed Jeremy's politics in Scotland, which far from solving our problems, pushed us into third," a senior opponent told me. But others will contend that a still more left-wing leader, such as Neil Findlay, is needed. Dugdale is personally supportive of Trident and was critical of Corbyn before his election. Should she be displaced, the party will be forced to elect its sixth leader in less than five years. But no one is so short-sighted as to believe that one person can revive the party's fortunes. Some Corbyn critics believe that a UK-wide recovery is a precondition of recovery north of the border. At this juncture, they say, SNP defectors would look anew at the party as they contemplate the role that Scottish MPs could play in a Westminster government. But under Corbyn, having become the first opposition to lose local election seats since 1985, it is yet further from power. 

In Scotland, the question now haunting Labour is not merely how it recovers - but whether it ever can. 

George Eaton is political editor of the New Statesman.