In short: GNT Finance is an independent mortgage broker for Castle Hill and the Hills District, comparing a national panel of lenders by phone, video and e-signature. We arrange loans for large family homes on Old Northern Road blocks, apartments in the Showground precinct, upgraders and investors, and first home buyers using the $1,500,000 First Home Guarantee cap. There is no cost to you for our home-loan service in most cases.
Castle Hill is where the Hills District comes together: Castle Towers, the Metro station that opened in 2019 with Sydney Metro Northwest, and leafy streets of big brick homes. Prices mostly sit above the NSW first home buyer duty thresholds, so different schemes help here, and lender policy on the new apartment precincts matters.
The Castle Hill housing mix
Old Castle Hill is 1970s to 1990s two-storey brick homes on blocks big enough for a pool or a second dwelling; around the Metro stations the picture has changed quickly.
- Established family homes: the bulk of the suburb, often renovated, with dual-occupancy potential that lenders treat carefully.
- Showground station precinct: new apartment towers and mixed-use buildings on the former industrial land around Carrington Road and Doran Drive.
- Castle Hill station precinct: apartments around Castle Towers, popular with downsizers staying local.
The Metro links Castle Hill to Norwest, Macquarie Park and Chatswood, Norwest Private Hospital and Norwest Business Park are the big employers, and schools such as Oakhill College keep families here for decades.
Schemes that apply at Castle Hill prices
| Scheme | Threshold | Castle Hill reality |
|---|---|---|
| First Home Buyers Assistance Scheme | Duty exempt to $800,000, concession $800,001–$1,000,000 | Apartments and some townhouses fall in the concession band |
| First Home Guarantee | 5% deposit, no LMI, $1,500,000 Sydney cap | Covers most townhouses and many houses |
| First Home Owner Grant | $10,000 for a new home up to $600,000 | Rarely reachable here |
| Help to Buy | 2% deposit, income caps $100,000 single / $160,000 couple | Check the current NSW price cap |
Figures are correct at the time of writing; confirm with Revenue NSW and housingaustralia.gov.au. The first home guarantee eligibility calculator tells you quickly whether you qualify.
Worked example: a first apartment near Showground
Say you buy a two-bedroom apartment in the Showground precinct for $950,000 as your first home.
- Transfer duty: a partial concession applies because the price is between $800,001 and $1,000,000; it tapers, so you pay part of the standard duty. The stamp duty calculator shows the NSW figure for your price.
- Deposit under the First Home Guarantee: 5% of $950,000, or $47,500, no LMI.
- Loan: $902,500. For illustration, at 6.00% p.a. over 30 years the repayment is about $5,411 a month.
A $1,400,000 house in old Castle Hill attracts full duty, but it still sits under the $1,500,000 First Home Guarantee cap, so a first home buyer could use the scheme instead of paying LMI.
What lenders watch in Castle Hill
Some lenders restrict high-density apartments in the Showground and Castle Hill station precincts by capping the LVR, limiting how many units they fund in one building or declining small studios. And off-the-plan contracts carry valuation risk: if the bank values the finished apartment below your contract price at settlement, you fund the gap. Our buying off the plan guide and understanding LVR and LMI explain how to protect yourself.
Upgraders, downsizers and investors
Most Castle Hill enquiries are not first home buyers. Upgraders need a bridging loan or a well-timed sale and purchase, downsizers want a small loan on a Castle Towers apartment, investors use equity to buy a rental through investment property loans, and a plain refinance is the most common request of all.
Working with GNT Finance from Castle Hill
Our office is at 23 Astbury Crescent, Mickleham, in Melbourne's north, and we work with Hills District clients over video, phone and a secure document portal, with e-signature and evening appointments. Gorakh Timilsina founded the business after years as a senior credit officer, so bridging, dual-occupancy and complex-income files are packaged the way an assessor wants them. Nepali-speaking service is available.
Nearby areas
We also serve Rouse Hill, Hornsby, Parramatta and Chatswood. See the Sydney and NSW pages for the wider picture.
Frequently asked questions
Can a first home buyer use the First Home Guarantee on a Castle Hill house?
Yes, if the price is $1,500,000 or less, you will live in it, you are a citizen or permanent resident, and you have not owned property in Australia in the past 10 years. There is no income cap. Check the current figure at housingaustralia.gov.au.
Are there lender restrictions on Showground precinct apartments?
Some lenders apply building-level limits on high-density apartments, including lower maximum LVRs, minimum floor areas and caps on exposure in a single tower. Others lend normally. We know which lenders on the panel are comfortable with a given building before you pay a deposit.
How do I upgrade within Castle Hill without selling first?
A bridging loan lets you buy the new home before your current one settles, with the sale proceeds later reducing the debt. Interest capitalises during the bridging period, so the sale timeline matters. We compare bridging lenders and model the peak debt so you know the worst case.
Does rent from a granny flat count towards my borrowing power?
Partly, with the right lender. Most that accept it take a percentage of the rent and require council approval and a separate lease; some exclude it. If you are buying a home with an existing secondary dwelling, we match you to a lender whose policy counts the income.
Talk to GNT Finance
For a Showground apartment, a Hills family home or an overdue refinance, we will compare the panel and give you clear numbers. Book a free consultation or call 0426 403 703.
Written by Gorakh Timilsina
Founder, CEO & Senior Mortgage Consultant at GNT Finance. Gorakh started as a broker assistant, spent years as a senior credit officer assessing loan applications, and now helps Melbourne families get the right loan approved. English, Nepali and Hindi spoken.