It's OK To Let Go Of The 1.5 Million Homes Headline, Keir

Britain has spent the last two years arguing about one number.

1.5 million.

It has become a political slogan, a measure of success, a stick for opponents to beat ministers with and a promise repeated so often that it risks becoming detached from the problem it was meant to solve.

Housing targets make great headlines. Brilliant for elections. Really difficult to deliver on.

Recently, housebuilders have been warning of difficult market conditions. It's the greatest hits. They have highlighted rising costs, skills shortages, planning delays, tight margins (difficult in every sector). Some of those concerns are legitimate.

But there is another question worth asking.

Should the country care quite as much as it does?

Because while politicians, planners and developers continue debating how quickly Britain can build another 1.5 million homes, there are already millions of buildings standing around us.

Some are empty. Some are underused. Some are offices, shops and commercial spaces that no longer serve their original purpose.

Some are homes sitting vacant while families struggle to find somewhere to live.

During an interview recorded for Refurb & Retrofit in May 2025, one experienced retrofit specialist made an observation that has stayed with me ever since. If Britain needs housing quickly, the fastest route to increasing supply may not be through new construction at all.

It may be through bringing void properties back into use and converting underused buildings into quality homes.

The more I think about it, the harder it becomes to ignore.

If a family can move into a retrofitted property in six months, why should we be obsessed with a development that may take five years to complete?

If a disused building can be transformed into dozens of homes, why is that opportunity treated as secondary to breaking ground on another greenfield site?

If housing is the objective, surely the speed at which people can actually occupy homes matters more than the political theatre of announcing them.

This is not an argument against new build.

Britain will continue to need new homes.

It is an argument against a mindset that treats new build as the only solution.

For years, retrofit has been viewed as a niche environmental concern. Something worthy, but secondary. Something discussed by engineers, housing associations and sustainability professionals while the "real" housing debate focused on cranes, concrete and planning applications.

That thinking now looks increasingly outdated.

Across the retrofit sector, there is growing evidence that existing buildings represent one of the largest untapped housing resources in the country.

Historic buildings.

Vacant homes.

Redundant commercial premises.

Buildings awaiting demolition.

Underused urban spaces.

All sitting within communities that already have roads, schools, public transport and utilities.

Meanwhile, the retrofit industry itself has matured considerably. The conversation is no longer about experimental projects or one-off exemplars.

The discussion has shifted towards delivery.

How do we scale?

How do we train enough people?

How do we make programmes repeatable?

How do we create confidence for investors and local authorities?

That is a very different conversation from the one we were having a decade ago.

Even manufacturers are increasingly focused on practical, evidence-led retrofit solutions. The emphasis is not on futuristic concepts but on proven approaches that improve real homes, reduce energy demand and deliver measurable outcomes for residents.

Which raises an uncomfortable possibility. What if Britain's housing challenge is no longer primarily a construction problem?

What if it is becoming an asset utilisation problem?

What if the fastest route to increasing housing supply is not building more places, but using more of the places we already have?

That may not fit neatly into a manifesto pledge. It may not produce dramatic photographs of hard hats and shovels.

But if the goal is to get people housed, quickly and affordably, perhaps it is time to stop treating retrofit as the supporting act.

Because the homes of the future may already be standing.