Gross Development Value in 2026

Gross development value is the single number that decides how large a development exit loan can be, which is why every developer coming to the end of a scheme in 2026 needs to understand how it is set rather than how it is hoped for. Gross development value, GDV, is the open market value of a finished development once every unit is built and sellable, assessed by an independent valuer for a lender rather than estimated by the developer on a spreadsheet. It is not the build cost, it is not the total the sales agent thinks the scheme could reach in a strong month, and it is not the sum of the asking prices on the portal. It is a defensible figure, and the loan is a percentage of that figure. When the money to exit a completed scheme is being arranged, GDV is where the conversation starts and, more often than developers expect, where it ends.

The reason GDV matters so much in a market like the one running through 2026 is that lenders have held their leverage discipline while the Bank of England base rate has stayed at 3.75 percent, held since the December 2025 cut (Bank of England). A steadier rate has not made lenders more generous on how much of a scheme’s value they will advance. The published bands are still measured against value, not cost: an exit bridge against a finished scheme is indicatively sized at 70 to 75 percent loan to GDV, and a finish and exit facility that funds the last stretch of the build sits at up to 70 percent. Get the GDV wrong and every one of those percentages is applied to the wrong base, which is how a developer ends up short of the sum needed to redeem the original development finance.

Before going further, a word on who we are. Development Exit Property Finance is a trading name of Lenzie Consulting Ltd, a broker and introducer, not a lender, and not regulated by the Financial Conduct Authority (FCA); development exit lending sits outside the FCA’s regulated mortgage regime; where a case needs an FCA authorised firm it is referred to one; every figure is an indicative published band, not an offer. Everything below is market commentary written for developers judging their own numbers, not a valuation of any scheme and not advice on a specific deal.

How a valuer sets GDV in 2026

A valuer does not ask a developer what the scheme is worth, they assemble evidence and build the figure from it. The core method for residential schemes is comparable evidence: recent sales of similar finished properties in the same location, adjusted for size, specification, aspect and condition, then applied to the units in the scheme on a pounds per square foot basis or on a whole-unit basis where the comparables are close enough. The comparables that carry weight are completed and recorded transactions, not asking prices and not agreed sales that have yet to complete, because a valuer is defending a number to a lender’s credit team and an asking price defends nothing.

In 2026 the evidence base is doing more of the work than it did through the sharper rate moves of earlier years. A base rate that has sat still for over a year means recent comparables are a more reliable guide to what the finished units will fetch, because the market they sold into is close to the market the developer is selling into now. That steadiness is quietly helpful to a developer with a defensible scheme, because it narrows the gap between what the valuer will sign off and what the units actually achieve. Understanding how a valuer arrives at GDV from comparables, rather than from optimism, is most of the work of setting a realistic exit expectation.

Why GDV drives everything downstream

Once the valuer has set GDV, the loan almost writes itself, because the exit facility is a fixed share of that value. On an exit bridge the published band is 70 to 75 percent LTGDV, so a scheme valued at two million pounds supports an indicative loan of 1.4 to 1.5 million pounds against value, before the lender’s fees and any retained interest are deducted to reach the net advance. If the original development finance to be redeemed is 1.45 million pounds, the difference between a GDV that supports 75 percent and one that supports only 70 percent is the difference between clearing the facility comfortably and coming up short. That is why GDV is not an academic figure. It is the number that decides whether the exit works at all.

The monthly cost follows the same logic. An exit bridge is priced indicatively at 0.65 to 0.95 percent per month, beneath the construction-risk rate the development finance carried, and it runs a 6 to 18 month term dated around the genuine sales runway rather than the redemption date written into the original facility. The whole point of moving onto exit finance is to lower the monthly carry and buy time to sell at proper prices, and the size of that loan, the thing that lets it redeem the development finance in the first place, is set by GDV. Get the value right and the mechanics work. Get it wrong and no amount of favourable pricing rescues the deal.

GDV is not the price a developer hopes to achieve, it is the number a valuer will defend to a lender, and the loan is sized against the second figure, never the first.

GDV against asking prices and achieved prices

The most common error a developer makes is to confuse three different numbers. The asking price is what the units are marketed at, and it is aspirational by design, set with room to negotiate. The achieved price is what a buyer actually pays once the deal completes, and it is the one that matters to the developer’s bank balance. GDV is a valuer’s independent estimate of the aggregate open market value, and it usually lands below the sum of the asking prices and close to, or a little under, a realistic set of achieved prices. A developer who sizes an expected exit loan on the sum of the portal asking prices is building on the least reliable of the three figures, and the valuation that comes back will not match.

There is a discipline in reconciling the three. If the achieved prices on the first few units in a phased scheme are coming in below the asking prices, that is information a valuer will use and a developer should absorb before assuming the remaining units support a higher GDV. If achieved prices are matching the asking prices, the evidence supports the valuer holding firm. Either way, the number that sizes the loan is the valuer’s, and a developer who has been honest with themselves about achieved prices meets that valuation with no surprises.

How lenders stress GDV

Lenders do not simply take a GDV figure and lend a percentage of it, they test the figure first. The most common stress is a sensitivity on values: what happens to the loan-to-GDV, and to the developer’s ability to repay, if the finished units sell for five or ten percent less than the valuer’s figure. A scheme that only works at full GDV is a scheme with no margin for a soft month, and a cautious lender prices that in or sizes down. A second stress is the absorption rate, the pace at which the units are expected to sell, because a GDV that depends on selling twenty apartments in three months is riskier than one that assumes a steady trickle over the term. The exit bridge’s 6 to 18 month term exists precisely so a developer is not forced to compress the sales programme into an unrealistic window to hit a deadline.

Lenders also look hard at the quality of the comparable evidence behind the GDV. A valuation built on a thin set of comparables, or on comparables from a materially different location or specification, invites a haircut. This is where the difference between GDV and the closely related net development value starts to matter, because some lenders prefer to size against value after sales costs and incentives are stripped out rather than against the headline GDV. That sibling figure, net development value, and the finish and exit route for schemes not yet at practical completion, are both worth a developer understanding before assuming the headline GDV is the number the loan will be built on.

Calculating GDV: the factors that set it

Calculating gross development value is not a single sum but a weighing of the factors that decide what a finished property is worth in the current market. A developer calculating GDV works from the same inputs a valuer uses: the comparable property sales nearby, the size and specification of each unit, the local property market, and the market conditions on the day the scheme completes. Getting the calculation right means understanding which of these factors move the number most. Location is the dominant factor, because the same building calculated against a stronger property market carries a higher gross development value than it would a mile away. Specification is the second factor, since a property finished to a higher standard than the comparables supports a keener rate per square foot. Market conditions are the third, because a property market that has firmed since the appraisal lifts the achievable value, while one that has softened drags it down.

For a phased project the calculation is live rather than fixed. As the early units of a project sell, the achieved property prices feed back into calculating the gross development value of the remaining phases, and a developer who recalculates against real market conditions rather than the original appraisal keeps the project’s numbers honest. The factors do not stay still across a build that runs eighteen months, so the discipline is to keep calculating GDV against fresh comparable property evidence at each phase. A project whose gross development value is calculated once at the start and never revisited is a project whose exit is sized against a number the property market may have moved past. Calculating a defensible development value, and understanding the factors and market conditions behind it, is what turns a property project’s headline value into a figure a lender will actually lend against.

What moves GDV at revaluation

GDV is not fixed for the life of a scheme, and a revaluation can move it in either direction. It moves up when the finished specification exceeds what the original appraisal assumed, when the local comparable evidence has strengthened since the scheme was first valued, or when a phased scheme’s early completions have achieved prices that support the valuer holding a firmer line on the rest. It moves down when the finished units disappoint against the drawings, when comparable evidence has softened, or when the scheme is being sold into a slower local market than the appraisal assumed. A developer who tracks the comparable evidence through the build is rarely surprised by a revaluation, because they have been watching the same data the valuer will use.

The practical lesson is that GDV rewards attention. The developer who keeps a live view of what similar finished units are actually selling for, phase by phase and month by month, is the developer who sets a realistic exit expectation and sizes the redemption correctly. The developer who fixes a GDV in their head at the start of the build and never revisits it is the one caught short when the valuation comes back below the number the whole exit plan depended on.

GDV discipline for developers

The single most useful habit a developer can build is to treat GDV as a number to be defended rather than a number to be reached. Before committing to a scheme, and again before arranging the exit, the question is not what could this sell for on a good day, it is what will a valuer sign off on the evidence available. That discipline protects the developer at both ends: it stops an over-optimistic GDV inflating the appraisal at the start, and it stops a developer planning an exit around a loan that the valuation will not support. When the numbers are grounded in comparable evidence rather than hope, the exit finance conversation is short, because the loan follows the value and the value is already agreed.

For a developer arranging the exit on a completed scheme in 2026, the sequence is straightforward. Establish a defensible GDV from real comparables, apply the published loan-to-GDV band to it honestly, check that the resulting loan clears the development finance being redeemed, and only then worry about rate and term. We broker development exit loans across the specialist desks and debt funds active in this market, and the schemes that place quickly are always the ones where the GDV is grounded rather than argued.

GDV in the development appraisal: viability and profit

GDV does more than size the exit loan; it is the top line of the development appraisal that decides whether a scheme is viable in the first place. A developer’s viability calculation starts with gross development value, then deducts the land cost, the build cost, the finance and the fees, and what remains is the profit. If that profit is too thin against the risk, the scheme is not viable, and the GDV is the number the whole viability assessment rests on. This is true across residential and commercial property development alike: a commercial or mixed-use scheme runs the same appraisal, with GDV set against the investment value of the finished commercial floorspace rather than individual sales.

The factors that move GDV therefore move viability directly. A stronger local area lifts the gross development value, improves the profit, and makes the land worth more; a weaker area does the reverse. A developer testing a site works the appraisal backwards from a defensible GDV to the land they can afford, because paying too much for land against an optimistic GDV is the fastest way to build a scheme with no profit in it. Whether the exit is a residential sale or a commercial investment, the GDV, the land value and the profit are one connected calculation, and viability is where the factors behind the gross development value are really tested.

FAQ

What does GDV mean in property development? Gross development value is the open market value of a finished development, assessed by an independent valuer, once every unit is built and sellable. It is measured against value, not build cost, and it is the figure a development exit loan is sized against. In 2026 an exit bridge is indicatively sized at 70 to 75 percent of GDV. Every figure here is an indicative published band, not an offer or a valuation of any scheme.

Is GDV the same as the total asking price of the units? No, and treating it as the same is a common and expensive mistake. Asking prices are aspirational and set with negotiating room. GDV is a valuer’s independent estimate of aggregate open market value, built from completed comparable sales, and it usually lands below the sum of the asking prices. The loan is sized on GDV, so a developer who plans around asking prices tends to be disappointed by the valuation.

How do lenders stress GDV before they lend against it? They test what happens if the units sell below the valuer’s figure, they check the assumed pace of sales against a realistic absorption rate, and they scrutinise the comparable evidence the valuation rests on. A scheme that only works at full GDV, sold at full pace, has no margin for a soft month, and a cautious lender will size down or price that risk in. The 6 to 18 month term exists so the sales programme is not compressed into an unrealistic window.

Can GDV change after the scheme is finished? Yes. A revaluation can move GDV up if the specification exceeds the original appraisal or local comparables have strengthened, and down if the finished units disappoint or the market has softened. A developer who tracks comparable evidence through the build is rarely surprised, because they are watching the same data the valuer uses.

Talk to us

If you have a completed or nearly completed scheme and a development finance redemption date coming into view, the sooner a defensible GDV is established the sooner the exit can be sized correctly. You can read more about how gross development value is set and start a conversation about how the exit might be arranged.

All figures in this article are indicative published bands for UK development exit finance in 2026, not an offer, a quote, a financial promotion or a valuation of any scheme, and any facility is subject to lender terms, an independent valuation and full due diligence. This article was written by Matt Lenzie.