For many property developers, securing development finance can sometimes feel like a mystery. You submit an application, provide your appraisal, answer a series of questions and then wait for a decision. But what actually happens behind the scenes?

Contrary to popular belief, development finance underwriting is not simply about whether a lender likes the project. Every application is assessed by considering the overall risk of the transaction and, more importantly, whether the proposed scheme has a realistic chance of being delivered successfully and repaid in full.

Understanding how underwriters assess a proposal can help developers present stronger applications, avoid unnecessary delays and improve their chances of securing funding.

In this guide, we explain what development finance underwriters typically look for, the common issues that can delay or prevent approval, and how developers can put themselves in the strongest possible position when seeking funding.

It starts with the developer, not the property

One of the biggest misconceptions is that lenders only assess the site itself.

In reality, experienced underwriters begin by looking at the developer behind the project.

Questions they may ask include:

Have they completed similar developments before?
What is their track record?
Have previous projects been delivered on time?
Do they have sufficient financial resources?
Do they have the right professional team around them?

An experienced developer with a realistic proposal will often be viewed more favourably than an inexperienced developer attempting an overly ambitious scheme.

That does not mean first-time developers cannot obtain finance. It simply means lenders may require stronger supporting information, additional security or a more experienced contractor and professional team.

Does the project make commercial sense?

Once the developer has been assessed, attention turns to the proposed development.

The underwriter wants to understand whether the scheme is commercially viable.

Typical considerations include:

Purchase price.
Existing market value.
Gross Development Value (GDV).
Build costs.
Professional fees.
Finance costs.
Contingency.
Sales values.
Local demand.
Exit strategy.

These figures should work together logically.

If a developer is forecasting sales values significantly above comparable evidence, or build costs that appear unrealistically low, this will almost certainly generate questions.

The strongest proposals are those where every assumption can be clearly justified.

Planning matters

Planning permission is often one of the first documents an underwriter will review.

Key considerations include:

Has planning permission been granted?
Are there any pre-commencement conditions outstanding?
Has planning been lawfully implemented where relevant?
Are there any Section 106 obligations?
Are Community Infrastructure Levy (CIL) payments due?
Are there planning risks that could affect delivery?

For projects proceeding under permitted development rights, lenders will also want confirmation that the proposal complies with the relevant legislation and that any necessary prior approvals have been obtained.

Planning uncertainty introduces risk.

Planning certainty creates confidence.

Is the appraisal realistic?

A development appraisal tells the financial story of a project.

Underwriters will review whether the assumptions are both realistic and internally consistent.

Areas that receive particular attention include:

Purchase costs.
Stamp Duty Land Tax.
Construction costs.
Professional fees.
Contingency allowances.
Sales costs.
Finance costs.
Profit margin.

If the appraisal assumes every property sells at the highest value in the area while construction costs sit below market norms, further justification is likely to be required.

Realistic appraisals generally receive a much more positive response than optimistic ones.

Build costs receive close scrutiny

Construction costs have changed significantly over recent years.

Labour shortages, inflation and material price increases mean historical build costs are often no longer relevant.

Underwriters will want confidence that:

The cost plan has been professionally prepared.
The contractor understands the project.
There is sufficient contingency.
The development remains profitable if costs increase.

Many lenders will appoint an independent Quantity Surveyor (QS) to review the proposed construction budget before approving funding.

This provides an additional layer of protection for both the lender and the borrower.

The importance of contingency

One area that inexperienced developers often underestimate is contingency.

Unexpected costs arise on almost every development.

Examples include:

Ground conditions.
Utility diversions.
Structural issues.
Material price increases.
Design amendments.
Programme delays.

Projects with no contingency often become stressed when unforeseen costs arise.

Developers who plan for uncertainty generally manage projects much more successfully.

Underwriters look closely at the exit strategy

Every development finance loan needs a credible exit.

Typically this will be:

Sale of the completed units.
Refinancing onto a longer-term investment facility.
A combination of both.

The exit should be realistic.

If refinancing is proposed, the completed scheme should comfortably support the anticipated mortgage.

If units are to be sold, comparable evidence should demonstrate that the expected values are achievable.

An underwriter will always ask one simple question:

“How does Onyx get repaid?”

If that answer is unclear, approval becomes much less likely.

Additional property security can strengthen a proposal

Not every lender approaches additional security in the same way.

Where appropriate, additional property security can significantly strengthen a development finance application.

Examples may include:

Residential investment properties.
Commercial properties.
Development sites.
Unencumbered land.

Providing additional security can sometimes:

Increase available borrowing.
Reduce overall lending risk.
Improve flexibility.
Support larger or more complex developments.

This can be particularly valuable where developers are seeking to maximise leverage while preserving working capital for future projects.

Legal considerations are equally important

A strong development can still encounter delays if legal issues arise.

Typical legal matters include:

Title defects.
Rights of way.
Easements.
Restrictive covenants.
Access rights.
Existing charges.
Lease terms.
Corporate borrowing structure.

Resolving these issues early often saves considerable time later in the transaction.

The professional team matters

Lenders gain confidence when experienced professionals are involved.

A typical development team may include:

Architect.
Planning consultant.
Quantity Surveyor.
Structural engineer.
Solicitor.
Selling agent.
Main contractor.

Each plays an important role in reducing project risk.

Strong professional teams often produce stronger funding applications.

Communication is important

One characteristic shared by many successful developers is communication.

Projects rarely proceed exactly as planned.

Build programmes move.

Material costs fluctuate.

Unexpected challenges arise.

Lenders understand this.

What they do not like are surprises.

Developers who communicate openly with their lender when issues arise generally achieve better outcomes than those who remain silent until problems become critical.

Common reasons applications are delayed

Many delays are avoidable.

Some of the most common reasons include:

Missing planning documents.
Incomplete cost plans.
Unrealistic GDVs.
Lack of comparable evidence.
Unclear ownership structures.
Outstanding legal issues.
Missing financial information.
Poorly prepared appraisals.

Submitting a comprehensive funding pack from the outset can significantly reduce underwriting timescales.

What underwriters are really trying to establish

Ultimately, every underwriter is attempting to answer three fundamental questions.

Can this project be built?

Planning, construction costs, contractor experience and technical reports all contribute towards answering this.

Can this project be sold or refinanced?

This is where GDV, market demand, comparable evidence and exit strategy become critical.

Can Onyx get repaid?

Everything ultimately comes back to repayment.

If the answer to all three questions is positive, the proposal is already in a much stronger position.

How developers can improve their chances of approval

Developers can often improve the quality of their applications by preparing information before approaching lenders.

Helpful documents include:

Planning permission.
Development appraisal.
Build cost schedule.
Comparable evidence.
Programme timeline.
Professional team details.
Developer CV.
Asset and liability statement.
Exit strategy.

Providing this information early demonstrates preparation and allows lenders to assess opportunities more efficiently.

Every lender has a different appetite

Not every lender assesses risk in exactly the same way.

Some specialise in:

Ground-up residential developments.
Refurbishments.
Commercial conversions.
Mixed-use schemes.
Bridging finance.

Others may have different lending limits, geographic preferences or attitudes towards planning risk.

Understanding which lender is best suited to a particular project can often save considerable time.

This is one reason why experienced brokers and specialist lenders play an important role in the funding process.

How Onyx supports property developers

At Onyx, we understand that no two development projects are identical. Rather than applying a purely formulaic approach, we assess each opportunity on its own merits, taking time to understand the developer, the scheme and the proposed exit strategy.

Our team works closely with developers, brokers and professional advisers to review projects pragmatically and commercially. We recognise that experienced developers occasionally encounter complex situations, whether that involves planning, additional security, refinancing or structuring larger facilities.

Where appropriate, we can provide flexible development finance and bridging finance solutions across a broad range of residential and mixed-use projects. For borrowers with additional property assets, we may also be able to structure facilities that unlock greater borrowing capacity while preserving liquidity for future opportunities.

Final thoughts

Many developers assume that securing development finance is simply a numbers exercise.

In reality, underwriting is about understanding the complete picture.

The developer, the project, the planning position, the build costs, the legal structure, the professional team and the exit strategy all contribute towards the final lending decision.

Developers who prepare thoroughly, present realistic assumptions and communicate openly throughout the process are often those who secure funding most efficiently.

If you are planning your next property development and would like to discuss how your proposal may be viewed from a lending perspective, the team at Onyx is always happy to have an initial conversation. A well-prepared application not only improves the likelihood of approval, but also helps ensure your development gets off to the strongest possible start.