The Ultimate Guide to Mortgages for New Build Homes in West Sussex

By James Evans, Director, TouchPoint Mortgages.

New build family home under construction in West Sussex, with scaffolding and marketing boards visible.

The Ultimate Guide to Mortgages for New Build Homes in West Sussex

Buying a new build home is exciting — everything’s brand new, low-maintenance, and you can often personalise the finish.

But when it comes mortgages for new build property, there are a few extra rules and quirks you should be aware of.

In this guide, we break down everything you need to know about mortgages for new build properties in West Sussex — whether you’re buying from a developer in Littlehampton, Rustington, or anywhere along the coast.

What Counts as a New Build?

A new build property is typically defined as:

  • A home being sold for the first time

  • One that has been newly constructed (usually within the last 2 years)

  • A property that’s never been lived in before

 

This could be a flat in a new development, a detached family home, or even a custom-build property.

Why Mortgages Work Slightly Differently on New Builds

Lenders see new build properties as slightly riskier because:

  • Prices can include a “new build premium”

  • There’s potential for value to dip slightly post-completion

  • Build delays can affect mortgage offer expiry dates

That doesn’t mean you can’t get a mortgage — it just means you need to work with a lender (and broker) who understands the process.

What Deposit Do I Need for a New Build Mortgage?

  • New Build House: Typically a 10% deposit is required

  • New Build Flat: Often a 15%–20% deposit is expected

Some developers offer incentives like part-exchange or deposit contributions — but not all lenders accept these, so it’s important we review the fine print.

 

💬 Thinking about a new build? Speak to your mortgage advisor in Littlehampton, Angmering or Rustington before reserving a plot.

Can First-Time Buyers Get a Mortgage on a New Build?

Absolutely — in fact, many new build developments are aimed specifically at first-time buyers.

You may also be eligible for schemes like:

  • Shared Ownership

  • Deposit Unlock

  • First Homes Scheme (subject to eligibility)

We can help you explore all your options and see which lenders are most supportive of first-time buyer new build purchases.

 

🏡 First-time buyer? Visit our First-Time Buyer Hub for practical, jargon-free advice.

How Long Do New Build Mortgage Offers Last?

Most mortgage offers are valid for 3 to 6 months — but some lenders offer extended offers up to 9 or even 12 months for new builds.

 

We’ll make sure your mortgage is aligned with your build completion date — and if needed, we’ll reapply or extend the offer at no extra stress to you.

What Happens If My New Build Is Delayed?

This is where it pays to have a broker in your corner.

If your build gets pushed back:

 

  • We’ll liaise with the lender and developer

  • Request offer extensions if needed

  • Reapply with a different lender if the deal expires

  • Help avoid penalties or legal headaches

Additional Costs to Watch For

When buying a new build, watch out for:

  • Management or estate fees

  • Leasehold terms (particularly on flats)

  • Upgrades and optional extras offered by the developer

  • Longer legal processes (especially with Help to Buy/Shared Ownership)

 

We’ll walk you through all of these and ensure you’re not caught off guard.

Final Thoughts

Buying a new build property in West Sussex is a brilliant move for many — but you’ll want expert guidance to avoid delays, mismatched offer expiry dates, or lender restrictions.

At TouchPoint Mortgages, we’ll help you secure the right mortgage for your dream home — with zero stress, and all the support you need.

 

👉 Browse our Homemovers page
👉 Already a homeowner? Check out remortgaging options
👉 Want honest advice on new build lending? Start at TouchPoint Mortgages