What Is Day One LTV in Property Development?

A development deal can look comfortably funded on paper because the finished scheme has a strong gross development value. But the lender starts somewhere more cautious: the property’s value before planning gains, construction work and sales are delivered. That is why understanding what is day one LTV matters before you agree a purchase price, exchange contracts or commit cash to a site.

Day one loan-to-value is one of the main measurements used in development finance. It can determine how much a lender will advance at completion, how much deposit or equity you need, and whether the deal works at all before build funds are released.

What is day one LTV?

Day one LTV is the percentage of a lender’s loan compared with the property or site’s value at the point the facility completes. In straightforward terms, it asks: how much is the land, building or development site worth today, before the proposed works add value?

For example, if a site is valued at £1,000,000 on day one and the lender will provide £650,000 at completion, the day one LTV is 65%.

The calculation is:

Day one LTV = initial loan advance ÷ current day one value × 100

This differs from gross development value, usually shortened to GDV. GDV is the valuer’s estimate of what the completed homes or commercial units should sell for once the scheme is finished. A lender may be comfortable lending against a percentage of GDV, but it will still want its initial exposure supported by the site’s current value.

That distinction is particularly important where planning permission has been secured but the purchase price assumes an optimistic future outcome. Planning can create material value, but a lender will rely on the valuer’s evidence, not simply the developer’s appraisal.

Why lenders use day one LTV

A development facility is normally advanced in stages. The lender releases an initial amount to acquire the site or refinance existing borrowing, then funds build costs through agreed drawdowns as work progresses. Day one LTV controls the lender’s risk at the start, when there is no completed development to sell.

A lender may assess several measures together: day one LTV, total loan-to-cost, loan-to-GDV and the borrower’s equity contribution. There is no single universal limit. The maximum available will depend on the asset, planning position, build programme, contractor arrangements, location, borrower experience and exit route.

A simple illustration helps. You are buying a consented site for £900,000. The surveyor values it at £850,000 on a day one basis, perhaps because comparable evidence does not fully support the agreed price. If the lender caps day one LTV at 65%, its initial advance may be £552,500, rather than 65% of the £900,000 purchase price. You would need to cover the difference, plus acquisition costs, legal fees, valuation fees and any lender fees due from your own funds or another acceptable source.

This is why a high GDV does not automatically solve a low initial valuation. The completed scheme may be expected to sell for £2.5 million, yet the lender still needs to be satisfied that the first advance is sensibly secured on day one.

Day one value is not always the purchase price

Developers often assume the day one value and agreed purchase price will match. They frequently do, but they are not the same thing.

The valuer may assess a lower figure where the property was bought at a premium, where comparable transactions are thin, or where the site has constraints that affect marketability. Abnormal costs, restricted access, contamination risk, leasehold complications, unusual construction and uncertain planning conditions can all influence the valuation.

Equally, a purchase below market value can improve the position. If a site is purchased for £700,000 but the valuer supports a day one value of £850,000, the lender’s LTV is usually measured against the £850,000 valuation. Whether it recognises all of that uplift for lending purposes depends on its criteria and the circumstances of the transaction. A connected-party purchase, a recent resale or a distressed sale will receive closer scrutiny.

How day one LTV works alongside GDV lending

Most development lenders are looking for a balanced capital structure, not just one attractive ratio. A scheme with a sensible 60% day one LTV can still be declined if build costs are understated or the projected sales values are weak. Conversely, a scheme with excellent GDV headroom may need more borrower equity if the day one LTV is too high.

Consider a project with these figures:

• Day one site value: £1,200,000
• Build and professional costs: £1,000,000
• Total facility required: £1,650,000
• GDV: £3,000,000

The initial advance might be limited to 65% of the day one value, or £780,000. Further funds would then be released against certified works, subject to the lender’s monitoring surveyor or quantity surveyor. The total £1.65 million facility equates to 55% of GDV, which may look conservative, but the lender will still test whether the borrower has enough cash to bridge the gap between costs falling due and drawdowns being received.

Staged drawdowns are not a blank cheque. They are usually paid after the monitoring surveyor confirms work has been completed to the required standard and cost plan. Developers need working capital for deposits, professional fees, VAT timing where applicable, overruns and the period before each drawdown lands.

What underwriters will want to see

Day one LTV is a valuation measure, but the underwriting decision is wider. Lenders will normally examine the planning permission, Section 106 or Community Infrastructure Levy obligations, build contract, cost plan, contingency allowance, contractor experience, programme, sales evidence and proposed exit.

For an experienced developer, a refinancing exit may be credible where completed units will be retained as investment property and rental coverage supports long-term borrowing. For a build-to-sell project, the lender will consider local demand, sales rates and whether the GDV is supported by comparable new-build transactions rather than asking prices.

The exit strategy matters from the first conversation. Development finance is short-term borrowing. Interest is often rolled up or retained, meaning it is paid from the facility at redemption or set aside from the loan at outset, rather than serviced monthly. That can preserve cash during construction, but it increases the total amount due and must be included in the appraisal. Serviced interest may be available in some cases, but it requires proven income or another acceptable payment source.

Where development cases commonly stall

In our general broker experience at Your Financial Assurance, cases most often slow down when the appraisal is based on a purchase price rather than an independent day one valuation, or when the cost plan has little meaningful contingency. Underwriters also query planning conditions that have not been discharged, a contractor without evidence of comparable projects, and an exit based on sales values that have not been tested against recent evidence.

Another common issue is assuming the lender will fund every cost from day one. Arrangement fees, interest, monitoring surveyor costs and legal fees can affect net proceeds. If the facility includes retained interest, the gross loan may look sufficient while the cash actually released on completion is lower than expected. That is a problem if the developer has already committed to the purchase with a fixed completion deadline.

A structured application deals with these questions early. It should show the current valuation case, build budget, contingency, cashflow, planning position, development track record and a realistic route to sale or refinance. It also needs to show what happens if works take longer or values soften.

How to use day one LTV before making an offer

Before committing to a site, model the deal against a cautious valuation rather than your best-case assumption. Allow for lender fees, valuation and legal costs, monitoring costs, stamp duty land tax where payable, finance interest and a practical contingency. Our development finance calculator can help test the impact of different loan amounts and terms, but it cannot replace a full appraisal or a lender-led valuation.

If the initial advance is likely to be tight, there may be options. You could negotiate the price, introduce more equity, use a lower-leverage facility, phase the project, or consider whether a specialist bridging facility is more suitable for the acquisition stage. The right route depends on the planning status, scope of works and exit, not simply the headline rate.

Day one LTV is not designed to frustrate a good scheme. It is the test that ensures the development starts with enough equity, enough evidence and enough room for normal project risk. Getting that number right before exchange gives you a far better chance of reaching practical completion with your finance still working as intended.

Lending is subject to status, valuation and lender criteria. Unregulated bridging, buy-to-let and most development finance are not regulated by the Financial Conduct Authority.