How Much Does Development Finance Cost?

Development finance costs shouldn’t be reduced down to just the interest rate. While interest is often one of the largest costs, the overall cost of a facility is also influenced by how and when funds are drawn, how interest is treated, lender fees, professional costs, the length of the development programme and the timing of repayment.

As a result, two facilities quoting similar rates can produce materially different borrowing costs. Equally, a facility with a slightly higher headline rate may prove more economical overall once fees, drawdown mechanics and repayment structures are taken into account.

The real question, therefore, is not simply “What interest rate is being charged?” but should be “What will this facility cost over the life of the project?“

In Short

• Interest is only one part of the cost of a development funding facility
• Interest is generally calculated according to the amount outstanding, subject to the lender’s facility structure.
• Arrangement, valuation, monitoring, legal and other fees may apply.
• The drawdown profile and development programme can materially affect total borrowing costs.
• Development finance facilities should be compared on total cost and structure rather than headline rate alone.

What Costs Are Involved in Development Finance?

Most development finance costs fall into three broad categories:

1. The cost of borrowing itself, including interest and lender fees associated with providing the facility.
2. Professional and due diligence costs incurred during underwriting and throughout the build.
3. Transaction-specific charges which vary according to the lender, project and funding structure.

The costs and mix will differ from scheme to scheme and lender to lender. A straightforward residential development may have relatively simple monitoring requirements, while a larger or more complex project may require additional specialist reporting, professional input and legal work.

When assessing development finance costs, it is usually the combined effect of these items rather than any individual charge that determines the overall economics of the facility. Typical costs usually include:

How Is Interest on Development Finance Calculated?

Unlike a conventional mortgage, a development finance facility isn’t usually advanced in full on day one. A typical structure may include an initial advance for site acquisition or refinance, followed by staged drawdowns to fund construction costs as works progress.

Interest is therefore generally calculated on the amount outstanding at any given time, rather than simply on the maximum facility from the outset. The precise calculation depends on the lender and facility structure, including how retained interest, rolled-up interest, fees and subsequent drawdowns are treated.

This arrangement is important because a £2 million facility does not necessarily result in interest being charged on £2 million throughout the entire term, otherwise borrower’s would be paying interest on funds they don’t actually require yet. If only part of the facility has been drawn initially, borrowing costs will typically reflect the amount actually outstanding, increasing as further funds are released.

How Do Staged Drawdowns Affect the Cost?

Construction expenditure usually occurs in a curved profile, based on the value of the works on site rather than at an even rate throughout the build. As costs are incurred at different stages of the build, development finance is normally structured to reflect that reality.

As construction progresses, additional funds are released through agreed drawdowns, often following reviews by a monitoring surveyor. As borrowing levels increase over time, so too does the interest costs of any funds drawn from the facility.

This has an important implication when estimating funding costs. A simple calculation based on maximum facility size, interest rate and term often bears little resemblance to the way development finance behaves in practice. Two projects with identical facilities can generate significantly different interest costs if their construction programmes, drawdown schedules or completion dates differ.

This is one reason why a specialist development finance calculator is often more useful than a basic interest calculator. By modelling staged drawdowns and project timing, it is possible to produce a more realistic estimate of likely borrowing costs.

Rolled-Up, Retained or Serviced Interest

The treatment of interest can also have a significant impact on both project cash flow and facility structure. Although these concepts are widely used throughout the market, terminology and calculation methods can vary between lenders. The practical effect on project cash flow is often as important as the headline interest rate itself.

With rolled-up interest, interest accrues during the term of the facility but is not actually repaid until the development finance is redeemed. This avoids the need for regular interest payments during construction but increases the amount outstanding at repayment.

With retained interest, the lender allocates part of the facility to meet projected interest costs throughout the term. Rather than requiring periodic payments from the borrower, an amount is reserved within the overall facility to cover anticipated interest.

Where interest is retained, the gross facility may therefore be larger than the net amount available for land acquisition and construction expenditure because part of the facility is allocated to meeting interest during the development period. Understanding this distinction is important when assessing how much funding is genuinely available to the project.

Under a serviced interest structure, interest is paid periodically by the borrower rather than being added to the debt. While this can reduce the redemption figure, it requires sufficient cash flow to support ongoing payments during the life of the facility.

What Fees Are Charged on Development Finance?

As mentioned above, interest is just one component of the overall borrowing cost. Most lenders charge an arrangement or facility fee for establishing the loan. Depending on the facility structure, this may be paid separately, deducted from the advance or incorporated into the facility itself.

Valuation fees are normally incurred by the borrower before completion. The lender will typically require an independent assessment of both the current value of the site and the projected Gross Development Value (GDV) of the completed scheme.

Monitoring surveyor costs can be equally important. These specialists review build budgets, assess progress against programme and often approve release of staged drawdowns. Because their involvement continues throughout construction, monitoring costs can extend well beyond the initial underwriting stage.

Legal fees should also be factored into a developer’s appraisal. In addition to their own legal costs, borrowers are usually responsible for paying the lender’s legal expenses too.

Some facilities include exit fees. Where an exit fee applies, borrowers should establish exactly what percentage is being charged and, equally importantly, what that percentage is calculated against. Depending on the structure, this can have a meaningful effect on total finance costs.

Additional charges may arise in individual cases, including drawdown fees, administration fees, lender due diligence fees, specialist reports and broker fees. Not every lender charges every fee, but all should be considered when comparing facilities.

What Determines the Interest Rate and Overall Cost?

Development finance pricing is heavily influenced by the lender’s assessment of risk and the perceived capability of the development team often influences both interest rate and available leverage. From a borrower’s perspective, lenders will typically consider development experience, track record, financial strength and overall credit profile.

The details of the project itself are equally as important. Factors including location, planning status, construction complexity, projected margin and GDV all influence lender risk assessment.

Loan-to-cost (LTC) ratios, loan-to-gross-development-value (LTGDV), facility term, exit strategy and the use of stretch senior or mezzanine funding can all affect the overall pricing to a developer

Broader market conditions play a role as well. Lender appetite, competitive pressure and prevailing funding costs can influence the rates and structures available at any point in the cycle.

Development finance pricing is therefore not determined by a single market rate. It reflects the interaction between the borrower, the project, the funding structure and the wider lending environment.

For definitions of terms such as LTGDV, LTC and GDV, see our Development Finance Glossary.

Worked Example: Why the Headline Rate Can Be Misleading

The example below is illustrative only and is designed to demonstrate how facilities with different pricing structures can produce different overall borrowing costs.

Assume two lenders are considering the same development project:

Illustrative figures only. Actual costs depend on facility structure, drawdown profile and lender terms.

Viewed purely through the lens of interest rate, Lender A’s facility initially appears more attractive. However, once fees and other borrowing costs are factored in, Lender B offers a lower overall finance cost despite having a higher headline rate. Conversely, if the build programme were significantly longer than the illustration, the sharper interest rate for Lender A may eventually close the gap, or become cheaper overall than Lender B.

This is why experienced developers rarely compare facilities on rate alone, and consider the economics of the entire structure.

How Does the Development Programme Affect Finance Costs?

Time is one of the most significant drivers of development finance costs. Longer construction programmes, programme overruns, delayed practical completion, slower sales rates and extended marketing periods can all increase borrowing costs because capital remains outstanding for longer.

Even where the agreed interest rate remains unchanged, an additional three or six months of borrowing can materially alter the finance cost within a development appraisal, eating in to a developers margin. Additional monitoring visits, extension fees and professional costs may also arise depending on the circumstances.

Finance costs should also be considered within the wider development appraisal. A facility that costs more in absolute terms may still be commercially attractive if it provides greater leverage, reduces the developer’s equity contribution or enables capital to be deployed elsewhere. Conversely, relatively modest increases in borrowing costs can reduce development margin significantly if the programme extends or sales are delayed.

How Should You Compare Development Finance Offers?

Comparing development finance facilities effectively requires more than a comparison of quoted rates. The amount available on day one, projected total interest, arrangement fees, exit fees, monitoring costs, drawdown mechanics and redemption profile can all affect the true cost of borrowing. As outlined above, two facilities may appear similar at headline level while producing very different economic outcomes.

A lender that understands the project, accommodates the intended drawdown profile and can deliver within the required timescale may provide significantly more value than a nominally cheaper alternative. Conversely, a facility that appears inexpensive can become costly if delays in execution affect the acquisition timetable, construction programme or exit strategy.

Facilities that can deliver the required funding outcome at the most efficient overall cost and with an acceptable level of execution risk is ultimately more valuable than a facility which only offers the lowest interest rate in the market.

Can You Calculate the Cost of Development Finance Before Applying?

In most cases, yes. Provided sufficient information is available, it is usually possible to model likely borrowing costs before approaching lenders. This can include land or acquisition funding, construction costs, staged drawdowns, projected interest, facility fees, leverage levels, term length and GDV assumptions.

While the precise terms of any facility will depend on lender underwriting and due diligence, an early-stage model can provide a useful indication of development viability and expected finance costs.

If you want to calculate the potential cost of development finance, a dedicated Development Finance Calculator can help model the relationship between drawdowns, programme timing and borrowing costs more accurately than a simple rate-based estimate.

How Can a Specialist Development Finance Broker Help?

In addition to accessing a broad spectrum of lenders in the development market to find the most suitable facilities, the value of specialist advice often also lies in analysing structures rather than simply identifying rates.

A specialist development finance broker can help evaluate projected total borrowing costs, redemption amounts, leverage levels, facility flexibility and execution certainty. That analysis is often more useful than comparing headline rates in isolation, particularly on larger or more complex schemes.

Accurately pricing development finance requires an understanding of the individual project. Site value, purchase price, construction budget, programme length, GDV, funding requirement, available equity, development experience and exit strategy all influence how a facility is structured and what it is likely to cost.

If you would like to assess the funding options for a specific scheme, discuss your project with a specialist adviser or use our Development Finance Calculator to model potential borrowing costs and development finance structures.