St Huberts Island is a canal-laced pocket of Brisbane Water where a boat moored at the bottom of the garden is part of the furniture. Helmsman Boulevard and Mercator Parade share the same waterfront grid, the same bridge to the mainland and the same schools. The choice between them comes down to a few practical differences: how much land you want, how wide a strip of water you want, and what the price range buys.
Price Positioning and Market Entry
Helmsman Boulevard is the easier street to read because it publishes a clear number. Its street median sale value is $2,720,000, with a median rent of $1,035 per week. The band behind that median is wide: from 77 Helmsman Boulevard at $1,400,000 in October 2025 through 35 Helmsman Boulevard at $2,500,000 in November 2025 and up to 18 Helmsman Boulevard at $3,600,000 in June 2025. That spread means one street covers an accessible entry point and a premium outcome.
Mercator Parade works differently. There is no published street median, so its story is told through individual results that cluster higher: 7 Mercator Parade at $2,750,000 in 2024, 30 Mercator Parade at $2,950,000 in July 2025, 13 Mercator Parade at $3,400,000 in January 2026, and 36 Mercator Parade at $4,000,000 in 2022. The street’s most recent recorded sale is 9 Mercator Parade at $3,200,000 in December 2025. Helmsman’s street median and Mercator’s individual results both sit above the suburb-wide house median of $1,925,000, but Helmsman gets there through a broad range while Mercator gets there through concentration.
Lot Size, Frontage and Streetscape Character
Lot size is where the two streets look most different. Helmsman Boulevard reads as a compact-to-mid-sized waterfront mix. 105 Helmsman Boulevard sits on a 675 m² wide-canal block, 54 Helmsman Boulevard on a 632 m² block, and 39 Helmsman Boulevard carries an 18 m water frontage. The pattern is roughly 632 to 675 m², mixing wide-canal and open-water positions.
Mercator Parade goes bigger at the top end. 34 Mercator Parade sits on 1,022 m² with deep-water frontage, and the 854 m² corner block at 1 Mercator Parade adds dual street frontages. Those larger parcels sit alongside standard 660 to 670 m² canal lots, including 13 Mercator Parade and 7 Mercator Parade, both at 664 m², and 11 Mercator Parade’s 660 m² north-facing block. If you want extra land and a wider stretch of water, Mercator is where the standout blocks live.
Waterfront Amenity and Lifestyle
Both streets tap the same island lifestyle. Days on the island revolve around the water, from boating, fishing and kayaking to paddleboarding and cruising Brisbane Water toward Broken Bay, and many homes keep a boat moored at the bottom of the garden. Private jetties, pontoons and boat ramps are common across the island, which appeals strongly to retirees, sea-changers and weekenders.
The flavour differs slightly by street. On Helmsman Boulevard, 105 Helmsman Boulevard is described as a wide-canal full-width waterfront with deep-water mooring and a jetty, while 55 Helmsman Boulevard adds a private boat ramp with a shared jetty and pontoon. Mercator Parade leans into deep-water frontage, with 34 Mercator Parade’s jetty and mooring pen, slipway potential and sandy beach, plus 11 Mercator Parade’s north-facing waterfront position and boat shed. Around both streets, 8 parks cover roughly 24.9% of the island, and nearby public boat ramps include the deepwater dual ramp with pontoon at Woy Woy Lions Park, the Ettalong Beach ramp and the St Huberts Island ramp at Luderick Avenue. Ettalong Beach, Umina and Woy Woy, with their cafes, restaurants and markets, are about a five-minute drive from either street.
Ownership, Turnover and Long-Term Value
Both streets are firmly owner-occupied. Helmsman Boulevard is 90% owner-occupied across its 129 properties, with average turnover of 73.9%, or roughly one sale every 13.5 years. That is a settled, tightly held street.
Mercator Parade is even more owner-weighted at 95% across just 36 properties, and its turnover reads higher at 90.6%, or roughly one sale every 11 years. That makes it the more active of the two markets, with premium results surfacing a little more often. Both streets share the same positive backdrop: houses across the suburb have recorded a 19.72% median value increase over five years.
Schools and Everyday Access
Schooling is effectively a wash between the two streets, because both sit in the same catchment. Primary students are zoned for Empire Bay Public School, about a 15 to 20 minute walk from either street (a little shorter from Helmsman Boulevard), while secondary students head to Brisbane Water Secondary College Umina Campus, roughly a 10-minute drive from both.
The rest is shared too. The island connects to the mainland at Daleys Point by a single bridge, Woy Woy railway station offers a direct run to the Sydney CBD, and the Ettalong Wharf to Palm Beach ferry takes about 35 minutes. Local bus routes 59, 64 and 5364 serve the island with boarding points within roughly 1 km of both streets.
Frequently Asked Questions
What is Helmsman Boulevard’s median house price in St Huberts Island?
The published street median is $2,720,000, with a median rent of $1,035 per week. Recent sales show the full band behind that figure, from 77 Helmsman Boulevard at $1,400,000 in October 2025 through 35 Helmsman Boulevard at $2,500,000 in November 2025 to 18 Helmsman Boulevard at $3,600,000 in June 2025. Buyers on this street can therefore choose between an entry-level waterfront purchase and a premium result.
What are Helmsman Boulevard’s key lifestyle advantages?
Direct water access is the headline. Homes here show private jetties, boat ramps and pontoons, with wide-canal and open-water outlooks along the street. 105 Helmsman Boulevard, for instance, is a wide-canal full-width waterfront with deep-water mooring and a jetty, while 55 Helmsman Boulevard offers a private boat ramp with a shared jetty and pontoon. Ettalong Beach, Umina and Woy Woy are about a five-minute drive away.
What lot sizes and property types are on Helmsman Boulevard?
The street has 129 properties, almost all houses. Blocks are a compact-to-mid-sized waterfront mix, mostly 632 to 675 m² with 18 m frontages and a blend of wide-canal and open-water positions. 105 Helmsman Boulevard is a three-bedroom home on a 675 m² wide-canal block, 54 Helmsman Boulevard sits on 632 m², and 39 Helmsman Boulevard carries an 18 m water frontage.
How often do homes on Helmsman Boulevard come up for sale?
Homes come up steadily rather than constantly, which suits buyers wanting a settled street. Microburbs records average turnover of 73.9%, or roughly one sale every 13.5 years, and owner-occupation sits at 90%. That is the pattern of an established waterfront address where most owners stay put.
What schools are Helmsman Boulevard residents zoned for?
Primary students fall in the Empire Bay Public School catchment, about a 15 to 20 minute walk away and marginally closer from Helmsman Boulevard, while secondary students are zoned for Brisbane Water Secondary College Umina Campus, roughly a 10-minute drive. Coast Christian School and Green Point Christian College are among the nearby private options.
Is Helmsman Boulevard a good street for buyers in St Huberts Island?
Yes, for the right buyer. It is an established, strongly owner-occupied street with a published median, a broad price range, genuine water access and slightly closer primary-school access. If you want flexibility on price and a compact waterfront block, it is a natural fit.
What is Mercator Parade’s median house price in St Huberts Island?
There is no published street median, because the transaction count is too thin. The price story is best read through individual sales that cluster in the suburb’s upper band: $2,750,000 for 7 Mercator Parade in 2024, $2,950,000 for 30 Mercator Parade in July 2025, $3,200,000 for 9 Mercator Parade in December 2025, $3,400,000 for 13 Mercator Parade in January 2026, and $4,000,000 for 36 Mercator Parade in 2022.
What are Mercator Parade’s key lifestyle advantages?
Deep-water frontage is the standout. Listings highlight mooring pens, slipways, sandy beaches and boat sheds. 34 Mercator Parade has a jetty with a mooring pen, slipway potential and a sandy beach, while 11 Mercator Parade is a north-facing waterfront home with a boat shed. The Ettalong Beach village foreshore is about a six-minute drive, while the broader Ettalong, Umina and Woy Woy area is about five minutes away.
What lot sizes and property types do Mercator Parade homes offer?
The street is a 36-property, house-dominated mix. Standout deep-waterfront blocks are notably larger than those on Helmsman Boulevard, led by 34 Mercator Parade at 1,022 m² and the 854 m² corner block at 1 Mercator Parade with dual street frontages. Standard canal lots sit around 660 to 670 m², including 13 Mercator Parade and 7 Mercator Parade, both at 664 m², and 11 Mercator Parade on a 660 m² north-facing block.
How often do homes on Mercator Parade come up for sale?
Slightly more often than Helmsman Boulevard, but it is still an owner-held street. Microburbs records higher turnover of 90.6%, or roughly one sale every 11 years, and owner-occupation sits at 95%, above the suburb-wide figure. That makes it the more active of the two markets, with premium results surfacing a little more often.
What schools are Mercator Parade residents zoned for?
The same catchments as Helmsman Boulevard. Empire Bay Public School is about a 15 to 20 minute walk for primary, and Brisbane Water Secondary College Umina Campus is roughly a 10-minute drive for secondary. EOC Broken Bay Woy Woy and St John the Baptist Catholic Primary School are among the nearby private options.
Is Mercator Parade a good street for buyers in St Huberts Island?
Yes, particularly if you are chasing space. It suits buyers who want larger lots, wider deep-water frontage and a recent track record of premium results, backed by 95% owner-occupation. The distinction is a thinner sales history and no published median, so you read the market through individual sales.
Conclusion
Helmsman Boulevard and Mercator Parade share the same island, the same schools and the same water-first lifestyle. The real difference is physical. Helmsman Boulevard offers a wider price spread and compact, accessible waterfront blocks, while Mercator Parade delivers larger lots, wider deep-water frontage and a concentration of premium results. The right choice depends on whether you are buying flexibility or land and water, and both are legitimate paths into the same island life.