Help to Buy debate puts sales certainty back at the centre of development finance

Housing delivery depends on credible demand

The debate over Help to Buy is often framed as a choice between supporting purchasers and reforming housing supply. For developers and their funders, the two are closely connected. Planning permission and development capital may enable construction, but projects also require sufficient demand at prices and sales rates that support viability.

As reported by Bridging Loan Directory, United Trust Bank has argued that planning reform should be accompanied by measures helping first-time buyers purchase homes. The independent government-commissioned evaluation of England’s Help to Buy equity-loan scheme estimated that around 15% of new homes built between 2013 and 2023 were attributable to the programme. It also calculated net present social value of £25.1bn in 2024/25 prices, including projected income from loan redemptions.

Those findings give developers a reason to monitor demand-side policy as closely as planning reform. A larger theoretical supply pipeline does not necessarily translate into starts if purchasers cannot meet deposit requirements or monthly mortgage costs. For lenders, the same issue affects projected sales periods, repayment strategies and the amount of contingency required within a facility.

The evidence does not support a simple revival

The evaluation also highlights the limits of using the previous scheme as a template. Bridging Loan Directory reports that Help to Buy’s supply effect was strongest during the recovery after the financial crisis, while there was little evidence that its closure in 2023 substantially affected new housing supply. There was, however, some evidence of a negative effect on first-time-buyer mortgage sales.

In addition, 54% of surveyed customers said they could have purchased a home without Help to Buy, although not necessarily the same property. The evaluation found evidence of modest price increases, with greater effects in areas that were already less affordable. These findings support the case for a more targeted intervention rather than a broadly available subsidy.

Broker views reported by Bridging Loan Directory point towards several possible design principles:

• Eligibility focused on first-time buyers who could not otherwise purchase.

• Support addressing both the deposit and monthly affordability constraints.

• Local income and property-price caps rather than a uniform national approach.

• A clear connection between buyer support and additional housing supply.

• Transparent future interest, repayment and shared-equity obligations.

• Consideration of whether support should include existing homes rather than being restricted to new builds.

These choices would produce different consequences. Restricting support to new builds could direct demand towards development sales, but may concentrate purchasing power within one segment. Extending support to existing homes could spread demand more widely, although the direct incentive for additional construction may be weaker. Tight eligibility may limit price effects, but it would also reduce the pool of qualifying buyers available to individual schemes.

Implications for development finance

Until the policy direction is clearer, development appraisals should not assume the return of a Help to Buy-style product. Schemes need to remain supportable against observable demand and realistic purchaser affordability. Any future programme should be treated as a potential change to the sales environment, not as a substitute for robust viability.

Developers may also need to examine unit mix and pricing with greater sensitivity. If support is subject to local caps or limited to buyers who cannot purchase without assistance, qualifying demand could vary materially between locations and unit types. This would affect which homes benefit, how quickly they might sell and whether a development’s overall exit remains diversified.

For development lenders, buyer support could improve confidence in sales-led repayment where it expands the pool of purchasers able to complete. However, underwriting would still need to consider whether demand has been brought forward, whether prices depend on the policy and what happens if eligibility changes during construction. Facilities may therefore be assessed against both supported and unsupported sales scenarios.

A broader financing-market question

The evaluation has moved the discussion beyond whether Help to Buy benefited major housebuilders. The more useful question for the finance market is whether carefully designed demand support can create sufficient sales certainty to encourage viable construction without materially worsening affordability.

There is no consensus in the broker responses reported by Bridging Loan Directory. Some favour a redesigned shared-equity model, while others argue that intervention should prioritise planning, supply and only the most constrained buyers. That division is itself important. Any successor scheme would need clear objectives and stable rules if developers and lenders were to reflect it confidently in investment and credit decisions.

For now, the strongest conclusion is that housing policy cannot be assessed solely through the number of permissions or proposed homes. Purchaser affordability, sales velocity and development finance exits form part of the same equation. A credible policy package would need to address those connections while avoiding reliance on demand support alone.