Mortgage Broker vs Going Direct: Finding the Best New Build Deal

Securing a mortgage for a new build property in the UK is a distinctly different experience from buying a resale home. New builds come with their own set of complexities: build stage valuations, developer timelines that can shift by months, six-month mortgage offer windows that may not align with construction schedules, and the critical question of whether to use a mortgage broker or apply directly to a lender. With the average new build home in England now priced at approximately £365,000 according to recent Land Registry data, the difference between a good and great mortgage deal could save you tens of thousands of pounds over the life of your loan. This is not a decision to take lightly, and the right approach depends on your personal circumstances, financial profile, and how comfortable you are navigating an increasingly complex lending landscape.

The UK mortgage market offers over 6,000 residential mortgage products at any given time, spread across more than 90 lenders including high street banks, building societies, specialist lenders, and challenger banks. Some of these deals are only available through intermediaries (brokers), while others are exclusive to direct applicants. For new build buyers specifically, many developers have partnerships with preferred brokers who may offer incentivised rates or contribution packages. Understanding the full landscape before committing to either route is essential. In this comprehensive guide, we will break down every aspect of the broker versus direct debate, examine the costs involved, explore when each approach makes sense, and help you make an informed decision that could save you thousands. If you are also exploring government-backed options, our guide on first-time buyer mortgages for new builds covers schemes that interact closely with your choice of mortgage route.

Understanding the Two Routes

Before diving into the pros and cons, it is important to understand what each route actually involves. Going direct means approaching a bank or building society yourself, either online, over the phone, or in branch. You research available deals, compare rates, and submit your application without a middleman. Using a mortgage broker means engaging a qualified intermediary who searches the market on your behalf, recommends suitable products, and handles much of the application process for you.

Mortgage brokers in the UK must be authorised and regulated by the Financial Conduct Authority (FCA). They fall into two main categories: whole-of-market brokers who can access deals from across the entire lending panel, and tied or multi-tied brokers who work with a limited panel of lenders. For new build purchases, there is also a third category: developer-appointed brokers who work from within the sales offices of housebuilders like Barratt Homes, Persimmon, Taylor Wimpey, and Bellway.

Market Access: Who Can Find More Deals?

One of the most significant advantages of using a mortgage broker is the breadth of market access. A whole-of-market broker typically has access to products from over 90 lenders, including many that do not deal directly with the public. Lenders like Accord Mortgages (part of Yorkshire Building Society), Platform (part of Co-operative Bank), and Kensington Mortgages are intermediary-only lenders, meaning their products are exclusively available through brokers.

Conversely, going direct means you are limited to the products offered by that single lender. While major banks like HSBC, Barclays, and NatWest offer competitive ranges, you would need to separately approach multiple lenders to compare deals, each involving its own research, conversations, and potentially credit searches.

As the donut chart above illustrates, approximately 65% of all mortgage products on the UK market are available exclusively through brokers or are most easily accessed through the intermediary channel. Around 20% of products are available through both channels, while roughly 15% are direct-only exclusives offered by high street banks to their existing customers or direct applicants. This means that by going direct, you are effectively excluding yourself from nearly two-thirds of the available market.

Cost Comparison: Broker Fees vs Rate Savings

The most common objection to using a mortgage broker is the fee. Broker fees in the UK typically range from £0 (fee-free brokers who earn commission only) to around £999 for premium advisory services. The average broker fee sits at approximately £495. However, this cost needs to be weighed against the potential savings a broker can achieve by finding you a better rate.

Let us consider a practical example. On a £300,000 mortgage over 25 years, the difference between a rate of 4.49% and 4.19% (just 0.30%) amounts to approximately £47 per month, or £564 per year. Over a typical 5-year fixed rate period, that is £2,820 in savings. Even after paying a £500 broker fee, you would still be £2,320 better off. Over the full 25-year term, the saving at that rate difference would be approximately £14,100.

New Build Specialist Knowledge

New build mortgages have nuances that set them apart from standard residential mortgages. A good broker who specialises in new builds will understand the following critical areas that could make or break your purchase:

Extended mortgage offer validity: Standard mortgage offers are valid for 6 months, but new build properties frequently experience construction delays. Some lenders such as Halifax and Nationwide offer extended validity periods of 9 or even 12 months for new builds. A specialist broker knows which lenders offer these extensions and will factor your build timeline into their recommendation.

Developer incentives and cashback: Many new build developers offer incentives worth 3–5% of the property price, which can include contributions towards stamp duty, legal fees, or upgrades. However, lenders view these incentives differently. Some will reduce the property valuation by the incentive amount, effectively increasing your LTV ratio. A knowledgeable broker understands which lenders are more favourable towards developer incentives and can structure your application accordingly.

Build stage payments: For off-plan purchases or properties at earlier construction stages, some lenders require stage payments or have specific policies about when they will release funds. An experienced new build broker will navigate these requirements seamlessly.

Valuation challenges: New builds can sometimes face valuation issues, particularly in new developments where there are limited comparable sales. A broker with new build experience will know which lenders use more favourable valuers and how to handle down-valuations effectively.

Developer-Appointed Brokers: A Special Case

When you visit a new build sales office, you will almost certainly be introduced to the developer's preferred mortgage broker. Companies like Charles Cameron & Associates, Mortgage Advice Bureau, and London & Country have partnerships with major housebuilders and operate from within their sales centres. These developer-appointed brokers occupy a unique middle ground in the broker versus direct debate.

On the positive side, developer-appointed brokers typically do not charge fees to the buyer, as their commission is paid by the developer or through enhanced procuration fees. They also have intimate knowledge of the specific development you are buying on, understand the build timelines, and have established relationships with the site sales teams. In some cases, using the developer's broker may unlock additional incentives or preferential terms that are not available through other channels.

However, there are important caveats. Developer-appointed brokers may not always be whole-of-market. Some operate on a limited panel and may steer you towards lenders with whom they have stronger commission arrangements. Their primary relationship is with the developer, not with you, which creates a potential conflict of interest. They are incentivised to ensure the sale completes, which aligns with your interests in most cases, but may not always result in the absolute best mortgage deal for your circumstances.

When Going Direct Makes Sense

Despite the strong case for using a broker, there are specific scenarios where going directly to a lender can be the better choice. Understanding when direct is superior helps you make the most informed decision for your circumstances.

Existing customer retention deals: Banks like HSBC, Barclays, and Nationwide frequently offer preferential rates to existing mortgage customers who are looking to remortgage or move home. These loyalty rates can be 0.10–0.25% lower than their standard new customer rates and are typically not available through brokers. If you already have a mortgage with a lender and are purchasing a new build as a home mover, checking your existing lender's retention deals first is a smart strategy.

First Direct and direct-only lenders: First Direct, HSBC's direct banking arm, consistently offers some of the most competitive mortgage rates in the UK market. Their products are only available to customers who bank with First Direct, and you must apply directly. Similarly, some building societies offer members-only rates that cannot be accessed through intermediaries.

Simple, straightforward applications: If you are an employed buyer with a clean credit history, a substantial deposit (25% or more), and a straightforward income structure, the range of products available to you is enormous and competitively priced across both channels. In this scenario, the marginal rate difference a broker might find may not justify a fee, and you might find an equally competitive deal going direct.

Speed for urgent completions: If you have a tight completion deadline on a new build that is already finished and ready for occupation, applying directly to a lender you already bank with can sometimes be faster than going through a broker, as the lender already holds your financial information and can conduct verification checks more quickly.

When a Broker Is Essential

While going direct can work for straightforward situations, there are many scenarios where a mortgage broker is not just helpful but practically essential. New build purchases disproportionately fall into the category where professional intermediary advice adds significant value.

Complex income structures: If you are self-employed, a contractor, have multiple income sources, receive bonus or commission income, or are a company director, the way lenders assess your income varies enormously. Some lenders will use your net profit, others your salary plus dividends, and some will average two or three years of accounts. A broker knows which lenders will give you the most favourable income assessment. For more on this topic, see our detailed guide on self-employed mortgages for new build homes.

Credit history issues: Even minor credit blemishes such as a missed mobile phone payment from three years ago can affect which products are available to you. Specialist brokers know which lenders have more tolerant credit scoring models and can place applications where they are most likely to succeed, avoiding unnecessary rejections that would further damage your credit file.

High LTV new builds: Borrowing at 90% or 95% LTV on a new build property is more restrictive than on a resale home. Some lenders cap new build lending at 85% LTV, while others are comfortable at 90% or even 95% with certain conditions. A broker can quickly identify which lenders will accept your deposit level specifically for new build properties.

Using government schemes: If you are combining your mortgage with Help to Buy equity loans, Shared Ownership, or the First Homes scheme, the number of participating lenders reduces significantly. A broker who specialises in these schemes will know the current participating lender list and their specific criteria, saving you hours of fruitless research.

First-time application approval rates for complex income applicants

Understanding Broker Fees and Commission

Transparency around how mortgage brokers are paid is essential for making an informed decision. Brokers earn money through two primary channels: procuration fees (commission paid by the lender) and broker fees (charged directly to you, the client). Understanding both is crucial.

Procuration fees: Every time a broker places a mortgage with a lender and it completes, the lender pays the broker a procuration fee. This typically ranges from 0.30% to 0.40% of the loan amount. On a £300,000 mortgage, that equates to £900–£1,200. This fee is built into the lender's margin and exists regardless of whether you use a broker or go direct — when you go direct, the lender simply retains this margin as additional profit.

Broker fees: Some brokers charge an additional fee on top of commission. This ranges from nothing (fee-free brokers) to £999 or occasionally more for specialist advice. Fee-charging brokers often argue that charging a fee removes any incentive to recommend a product based on which lender pays the highest commission, aligning their interests more closely with yours.

New Build Mortgage Rate Comparison: Current Market

To ground this comparison in reality, let us look at indicative rates across different channels for a typical new build purchase scenario: a £350,000 property with a £70,000 deposit (80% LTV).

Rates are indicative and subject to change. Based on £280,000 mortgage at 80% LTV on a new build property.

This table illustrates a critical point: the very best rates can be found in both channels. Broker-only lenders like Accord and Platform compete head-to-head with direct-only options like First Direct. The optimal strategy is often to check both channels, which is why many savvy buyers use a broker while also independently checking their own bank's direct offerings.

The Best of Both Worlds Strategy

There is nothing stopping you from exploring both routes simultaneously, and this dual approach is arguably the smartest strategy for most new build buyers. Here is how to do it effectively:

Step 1 — Check your existing bank: Before engaging a broker, log into your current bank's mortgage section and check what rates are available to you as an existing customer. Note down the best deal, including any product fees, and the total cost over the initial fixed period.

Step 2 — Engage a whole-of-market broker: Share the deal you have found with your broker and ask them to beat it. A good broker will tell you honestly if they can improve on what you have found, and they should be able to show you a comparison of total costs including their fee, product fees, and the rate itself.

Step 3 — Consider the full picture: Compare not just rates but also product fees, cashback offers, free valuation and legal work (common with new build products), early repayment charges, portability options, and overpayment allowances. A product with a slightly higher rate but no product fee may work out cheaper overall.

Step 4 — Factor in the new build specifics: Check the mortgage offer validity period, the lender's attitude to developer incentives, and whether they have experience lending on the specific development you are buying on. These factors can be deal-breakers that outweigh a marginal rate difference. If you are interested in understanding the broader financial picture, read our guide on how to get a mortgage in principle for a new build home.

Red Flags When Choosing a Broker

Not all brokers are created equal, and the quality of advice can vary significantly. Watch out for these warning signs when selecting a mortgage broker for your new build purchase:

Upfront fees before any work: Reputable brokers typically charge their fee on completion or at the point of mortgage offer. Any broker demanding payment before they have done any work should be viewed with suspicion. Some may charge a small arrangement or advice fee upfront (£50–£100), but this should be clearly explained and deducted from the final fee.

Reluctance to discuss commission: Since 2014, the FCA requires brokers to disclose commission information to clients. If a broker is evasive about how they are paid or refuses to discuss procuration fees, this is a significant red flag.

Pushing a single lender consistently: If a broker seems to recommend the same lender regardless of client circumstances, they may be motivated by commission rather than your best interests. Ask why they are recommending a specific lender and request to see alternatives.

No written recommendation: FCA rules require brokers to provide a written suitability report explaining why their recommended product is appropriate for your circumstances. If a broker skips this step, they are not meeting their regulatory obligations.

LTV Considerations for New Build Properties

Loan-to-value (LTV) ratio is a critical factor in mortgage pricing, and new builds face stricter LTV limits with many lenders. Understanding these restrictions is important whether you use a broker or go direct.

Many mainstream lenders cap new build lending at 85% LTV for houses and 80% LTV for flats. This means you may need a larger deposit for a new build compared to an equivalent resale property. Some lenders, however, will go up to 90% or even 95% LTV on new builds, but these tend to be specialist products available primarily through brokers.

The Timeline Factor: New Build Delays and Mortgage Offers

One of the most stressful aspects of buying a new build is aligning your mortgage with the build completion date. Standard mortgage offers last six months, but new build construction timelines can slip significantly. According to industry data, approximately 40% of new build completions are delayed beyond the originally estimated date, with the average delay being 8–12 weeks.

This is where a mortgage broker's expertise becomes invaluable. Different lenders offer varying extension policies for new build mortgage offers. Halifax offers automatic extensions up to 9 months for new builds. Nationwide can extend offers on a case-by-case basis. Some smaller building societies and specialist lenders offer validity periods of up to 12 months from the outset for off-plan purchases.

If your mortgage offer expires before completion, you may need to reapply entirely. This means a new valuation, fresh credit checks, and potentially a different (and possibly higher) rate. A broker who has anticipated this risk and placed you with a lender offering adequate validity can save you enormous stress and potentially thousands of pounds.

How to Choose the Right Mortgage Broker for a New Build

If you decide to use a broker, selecting the right one is crucial. Here are the key criteria to evaluate:

Whole-of-market access: Ensure the broker is genuinely whole-of-market, meaning they can access products from across the entire lending spectrum. Ask how many lenders are on their panel. A good whole-of-market broker should have access to 90+ lenders.

New build experience: Ask specifically about their experience with new build purchases. How many new build mortgages did they arrange in the past year? Do they have relationships with any housebuilders? Are they familiar with the specific development you are buying on?

Fee transparency: Before engaging, get a clear written statement of their fees. Will they charge a fixed fee, a percentage of the loan, or work on commission only? When is the fee payable? Is there a refund if the mortgage falls through?

FCA registration: Verify the broker's FCA registration on the Financial Services Register at register.fca.org.uk. Check their firm reference number and confirm they are authorised for mortgage advice.

Reviews and recommendations: Check reviews on Google, Trustpilot, and VouchedFor. Ask friends, family, or your estate agent for personal recommendations. Word of mouth remains the most reliable way to find a good broker.

Common Mistakes to Avoid

Whether you choose to use a broker or go direct, there are several common mistakes that new build buyers make when securing their mortgage:

Not getting a mortgage in principle early enough: Developers typically want to see a mortgage in principle (also known as a decision in principle or agreement in principle) before accepting a reservation. Having this ready before you start viewing new build properties puts you in a much stronger position and prevents delays. Our guide on getting a mortgage in principle for a new build explains the process in detail.

Ignoring product fees: A headline rate of 3.99% with a £999 product fee may be more expensive overall than a 4.19% rate with no fee, particularly on smaller mortgages. Always compare the total cost of the deal over the initial fixed period, not just the rate.

Not considering what happens after the fixed period: Every fixed-rate mortgage reverts to the lender's standard variable rate (SVR) when the fixed period ends. SVRs currently range from 6.5% to 8.5% across major lenders. While most people remortgage before reaching the SVR, understanding this risk is important.

Forgetting about additional borrowing costs: Beyond the mortgage rate and fees, consider valuation fees, arrangement fees, legal costs, and any higher lending charges if borrowing at high LTV. A broker will factor all of these into their comparison, but if you are going direct, you need to do this analysis yourself.

Verdict: Which Route Should You Choose?

After examining every angle of the broker versus direct debate, our recommendation for most new build buyers is clear: use a whole-of-market mortgage broker, but also check your existing bank's direct offerings. This dual approach gives you the widest possible access to the market while ensuring you do not miss any direct-only deals that might be available to you as an existing customer.

For straightforward purchases where you have a large deposit, clean credit, and an existing relationship with a competitive lender, going direct can work perfectly well. But for the majority of new build buyers — especially first-time buyers, those using government schemes, self-employed applicants, or anyone buying off-plan — the expertise, market access, and time savings of a good broker make it the superior choice.

Remember, a mortgage is likely the largest financial commitment you will ever make. The difference between a good deal and a great deal, compounded over 25 or 30 years, can amount to tens of thousands of pounds. Whether you choose a broker or go direct, invest the time to research thoroughly, compare comprehensively, and make a decision based on total cost rather than headline rates alone.

It is also worth noting that the regulatory landscape around mortgage advice continues to evolve. The FCA's Consumer Duty rules, which came into full effect in 2024, place additional obligations on both brokers and direct lenders to demonstrate that they are delivering good outcomes for customers. For brokers, this means being able to evidence that their recommendations genuinely serve the client's best interests, not just their own commission targets. For lenders offering direct products, it means ensuring that customers who apply without advice are given sufficient information to make informed decisions and are not disadvantaged compared to advised customers. These regulatory changes have generally raised the bar for advice quality across the industry, making the broker channel more trustworthy than it may have been in the past.

Another factor that is becoming increasingly relevant for new build buyers is the growing importance of energy efficiency in mortgage pricing. Several lenders now offer green mortgage products with preferential rates for properties with an EPC rating of A or B. Since almost all new build homes are built to high energy efficiency standards and typically achieve an EPC rating of A or B, new build buyers are well-positioned to benefit from these green mortgage deals. A broker who is aware of these products can potentially secure you a lower rate simply because your new build home meets the energy efficiency criteria. This is yet another example of where specialist knowledge can translate directly into savings.

The question of whether to use a broker or go direct also intersects with the broader trend of increasing digitalisation in the mortgage market. Online-only brokers such as Habito, Trussle, and Mojo Mortgages offer technology-driven services that aim to combine the breadth of a broker with the convenience of a direct online application. These digital brokers typically do not charge fees and use algorithms to match you with suitable products from across the market. While they may lack the personalised service and new-build-specific expertise of a traditional face-to-face broker, they represent an interesting middle ground for tech-savvy buyers who want broader market access without the cost of a traditional broker fee.

Ultimately, the decision between using a broker and going direct should be driven by the complexity of your circumstances, the time you have available to research, and the value you place on professional advice. For a straightforward purchase with a large deposit and stable employed income, either route can work well. For anything more complex, particularly new build purchases with their inherent timing and valuation challenges, the expertise of a good broker is worth its weight in gold. The data consistently shows that buyers who use brokers achieve better outcomes on average, and in a market where a fraction of a percentage point can mean thousands of pounds over the life of a mortgage, that edge matters enormously.

For couples buying together, our guide on joint mortgages for new builds covers additional considerations around combining incomes and structuring ownership. And if you are considering having a family member help with your purchase, explore guarantor mortgages for new build homes as another avenue worth investigating.