Is my North Curl Curl block suitable for a duplex?

North Curl Curl's typical 450–800m² block and R2 Low / R3 Medium (Manly, Dee Why, Brookvale, Mona Vale, Avalon town centres) / RU2 Rural Landscape (Ingleside, Terrey Hills, Duffys Forest, Oxford Falls) / E3/E4 Environmental on bushland fringe zoning is a good starting point, but duplex feasibility depends on minimum lot size (600m² (Manly/Pittwater legacy R2) / 700m² (Warringah legacy R2) / varies by precinct under Northern Beaches LEP), width, frontage, and Northern Beaches Council's specific dual occupancy controls. Buildana runs a free feasibility: title search, DCP check, yield assessment — 48 hour turnaround on most North Curl Curl sites.

Can I live in one half of my duplex in North Curl Curl?

Owner-occupier duplexes are one of the smartest financial moves in North Curl Curl. Live in one side, rent the other at $750–$1,200 per week. Mortgage offset from rental income plus capital growth on two titles. Near B-Line bus to CBD (Brookvale interchange) station, rental demand for new duplexes is strong. Buildana can design both sides for different needs — family home one side, investor layout the other.

What council contributions apply to duplexes in North Curl Curl?

Section 7.11/7.12 contributions for dual occupancy in Northern Beaches Council's area typically range $10,000–$60,000+ depending on the number of additional dwellings and lot size. These cover roads, drainage, parks, and community infrastructure. Amounts vary between LGAs. Buildana includes estimated council contributions in every duplex feasibility report.

Can I build a duplex and a granny flat on the same block in North Curl Curl?

Under current NSW regulations, a granny flat (secondary dwelling) can only attach to a primary dwelling — not a dual occupancy. So you can't build a duplex and a granny flat on the same lot. If your block is large enough, you might achieve a three-dwelling outcome under multi-dwelling housing provisions (R3 zoning required). Buildana assesses all options during feasibility.

Can I claim depreciation on a new duplex in North Curl Curl?

Yes — new dual occupancy in North Curl Curl typically generates $12,000–$22,000 in first-year depreciation deductions per dwelling, dropping to a long-term average of $7,000–$11,000 per year over the 40-year build life. Quantity surveyor reports cost $700–$1,000 per dwelling and pay back many times over. Investors often hold the rental side under a separate trust for asset protection — worth structuring before contract.

Should I sell or hold both halves of my duplex in North Curl Curl?

Selling both at completion captures the full development margin upfront — useful if you want to roll capital into the next project. Holding both gives long-term rental income and capital growth, with depreciation softening tax. The middle play — sell one to fund the build, hold the other rent-free — is what most North Curl Curl duplex clients actually do. Worth modelling all three with your accountant before contract.

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North Curl Curl Duplex Builder — Western Sydney Dual Occupancy

Q: Can I build a duplex on my R2 block in North Curl Curl?

In most cases, yes — the July 2024 reform made dual occupancy permissible in R2 zones across NSW, including North Curl Curl. Your block needs to meet minimum size (600m² (Manly/Pittwater legacy R2) / 700m² (Warringah legacy R2) / varies by precinct under Northern Beaches LEP) and width requirements. North Curl Curl also has R3 Medium Density zones with established dual occupancy provisions.

Q: How long does it take to build a duplex in North Curl Curl?

Total 14–22 months: feasibility and design (2–4 months), Northern Beaches Council approval (1–4 months depending on DA vs CDC), construction (9–14 months). Class Hawkesbury Sandstone predominant (deep rock excavation $40K–$150K+ on most lots) / Class P/E coastal alluvial on Narrabeen/Curl Curl/Dee Why/Manly/Mona Vale lagoon corridors / coastal acid sulphate soils (CASS) on lagoon margins / coastal hazard zones on Collaroy–Narrabeen, Curl Curl, Dee Why, Manly, Mona Vale, Palm Beach beachfronts soil conditions in North Curl Curl are standard for the area. Buildana provides a detailed timeline in every fixed-price contract.

Buildana is a local Northern Beaches duplex builder. We know which North Curl Curl streets support Torrens title subdivision, which suit strata, and what Northern Beaches Council will approve. Free site feasibility.

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North Curl Curl Dual Occ. — Feasibility to Handover

Duplex in North Curl Curl is feasibility-restricted — HCA, Coastal Hazard. Where viable on R2 outside HCA, end values $2.4M–$4M+ per attached dwelling.

Most North Curl Curl blocks run 450–800m² on Class Hawkesbury Sandstone predominant (deep rock excavation $40K–$150K+ on most lots) / Class P/E coastal alluvial on Narrabeen/Curl Curl/Dee Why/Manly/Mona Vale lagoon corridors / coastal acid sulphate soils (CASS) on lagoon margins / coastal hazard zones on Collaroy–Narrabeen, Curl Curl, Dee Why, Manly, Mona Vale, Palm Beach beachfronts ground. Duplex feasibility hinges on lot size (600m² (Manly/Pittwater legacy R2) / 700m² (Warringah legacy R2) / varies by precinct under Northern Beaches LEP minimum under Northern Beaches Council), frontage width, and whether your block sits inside any overlay — flood, heritage, biodiversity. Worth assessing before design spend. Median price band: $2.8M–$5.5M+ (oceanfront). B-Line bus to CBD (Brookvale interchange) station services the suburb.

Buildana manages the full duplex development process in North Curl Curl — from feasibility assessment and architectural design through to DA or CDC approval, and fixed-price construction to dual handover. One builder, one contract, two homes.

Read our Complete Duplex Building Guide or explore duplex developments across Sydney.

Dual occupancy in North Curl Curl from $750K
Northern Beaches Council DA and CDC approvals managed
R2 and R3 zones — established dual occ. provisions
Minimum lot size 600m² (Manly/Pittwater legacy R2) / 700m² (Warringah legacy R2) / varies by precinct under Northern Beaches LEP in North Curl Curl
Class Hawkesbury Sandstone predominant (deep rock excavation $40K–$150K+ on most lots) / Class P/E coastal alluvial on Narrabeen/Curl Curl/Dee Why/Manly/Mona Vale lagoon corridors / coastal acid sulphate soils (CASS) on lagoon margins / coastal hazard zones on Collaroy–Narrabeen, Curl Curl, Dee Why, Manly, Mona Vale, Palm Beach beachfronts soil — engineered dual-slab design included
Strata or Torrens title subdivision available
6-year structural warranty per dwelling
Free feasibility check — near B-Line bus to CBD (Brookvale interchange) station

Why Build a Duplex in North Curl Curl?

North Curl Curl is the oceanfront beach suburb — Federation beach houses, post-war brick and contemporary on 450–800m² blocks. Heritage Conservation Area covers the older streets. Coastal Hazard zone on direct beachfront. Hawkesbury Sandstone with rock excavation typical.

North Curl Curl's rural-residential character and 450–800m² blocks set it apart from standard suburban development. R2 Low / R3 Medium (Manly, Dee Why, Brookvale, Mona Vale, Avalon town centres) / RU2 Rural Landscape (Ingleside, Terrey Hills, Duffys Forest, Oxford Falls) / E3/E4 Environmental on bushland fringe zoning means different controls apply — larger setbacks, on-site services, and site-specific engineering. Transport access via B-Line bus to CBD (Brookvale interchange) connects North Curl Curl to the wider Sydney network. Dual occupancy is well-established in North Curl Curl's R3 zones. Minimum lot size for duplex: 600m² (Manly/Pittwater legacy R2) / 700m² (Warringah legacy R2) / varies by precinct under Northern Beaches LEP. Ground conditions (Class Hawkesbury Sandstone predominant (deep rock excavation $40K–$150K+ on most lots) / Class P/E coastal alluvial on Narrabeen/Curl Curl/Dee Why/Manly/Mona Vale lagoon corridors / coastal acid sulphate soils (CASS) on lagoon margins / coastal hazard zones on Collaroy–Narrabeen, Curl Curl, Dee Why, Manly, Mona Vale, Palm Beach beachfronts) across North Curl Curl are well understood by local builders — Buildana's engineering accounts for extremely reactive soil movement.

Duplex feasibility on the Northern Beaches works inland R2 detached pockets meeting the legacy precinct minimums — 600m² (legacy Manly + Pittwater R2) or 700m² (legacy Warringah R2) — across Brookvale, Dee Why, Cromer, Narraweena, Beacon Hill, Allambie Heights, Wheeler Heights, North Manly, Manly Vale, Balgowlah, North Balgowlah, Forestville, Frenchs Forest, Davidson, Belrose, Collaroy Plateau and similar inland mid-tier suburbs. R3 Medium Density along Pittwater Road and around Manly, Brookvale, Dee Why, Collaroy, Narrabeen, Mona Vale B-Line interchange precincts permits attached duplex with FSR up to 0.9:1. RU2 acreage at Ingleside, Terrey Hills, Duffys Forest, Oxford Falls effectively rules out duplex (subdivision restrictions, AWTS limits, RFS BPA constraints). Heritage Conservation Areas across Manly, Fairlight, Balgowlah, Avalon, Bilgola Beach, Palm Beach, Whale Beach, Bilgola Plateau, Freshwater, Curl Curl, Collaroy, Narrabeen, Mona Vale, Newport village cores effectively rule out duplex on protected streets. Coastal Hazard zone restricts duplex on direct beachfront. End values $1.8M–$2.8M per attached dwelling on inland mid-tier; $2.6M–$4M on premium suburban (Balgowlah, Manly Vale, Forestville, Frenchs Forest); $3.5M–$6M+ on coastal-proximate (Curl Curl, Freshwater, Collaroy outside HCA, Newport outside HCA); duplex on direct oceanfront Manly/Whale Beach/Palm Beach effectively non-existent given heritage and Coastal Hazard controls. Hawkesbury Sandstone rock excavation $40K–$120K per dwelling on most sites. Bushfire-prone overlays drive specs on bushland-fringe lots ($30K–$80K per dwelling). Tree Preservation Order strict — AS4970 root-zone protection plans routine. Mandatory paid feasibility — Northern Beaches DCP setback, FSR, landscaped-area, deep-soil, BAL, Coastal Hazard, riparian and heritage overlays change the maths.

Planning Controls — Northern Beaches Council

Northern Beaches LEP 2022 (consolidating the legacy Manly, Warringah and Pittwater LEPs) & Northern Beaches DCP. Post-2016 amalgamation LGA spanning the entire ocean-and-harbour peninsula from North Head to Barrenjoey — 252 km² with 36+ residential suburbs, four lagoons, the Garigal and Ku-ring-gai Chase National Parks, and the Pittwater estuary. R2 Low Density covers most residential streets: FSR 0.5–0.55:1, building height 8.5–9m, front setback 6–7.5m, landscaped area 40–60%, deep soil 25–35%. R3 Medium Density along Pittwater Road and around station precincts (no rail — B-Line bus equivalents at Manly, Brookvale, Dee Why, Collaroy, Narrabeen, Mona Vale interchange/terminus) permits FSR up to 0.9:1. R4 High Density and B4 Mixed Use concentrated on Manly town centre + the Corso, Dee Why town centre, Brookvale, Mona Vale town centre, Avalon village core. Northern Beaches DCP duplex minimum lot varies by precinct — 600m² (legacy Manly + Pittwater R2) to 700m² (legacy Warringah R2). RU2 Rural Landscape covers the rural acreage belt — Ingleside, Terrey Hills, Duffys Forest, Oxford Falls, parts of Belrose — restricting subdivision to 2ha+ minimum. E3 Environmental Management and E4 Environmental Living overlays on bushland-fringe lots backing Garigal NP, Ku-ring-gai Chase NP, Manly Dam Reserve and Narrabeen Lagoon catchment further restrict siting. Heritage Conservation Areas extensive — Manly heritage core (the Corso, Eastern Hill, North Head precinct), Fairlight, Balgowlah, Balgowlah Heights, Clontarf, Seaforth, Avalon village, Newport village, Mona Vale, Bilgola Beach cove, Whale Beach, Palm Beach village, Freshwater village (Duke Kahanamoku surfing precinct), Curl Curl heritage streets, Collaroy village, Narrabeen heritage streets. Aboriginal cultural heritage protocols apply across most sandstone country (extensive rock-art sites, middens, engravings) — pre-DA Aboriginal Cultural Heritage Assessment routine on bushland-fringe and waterfront sites. Tree Preservation Order LGA-wide and strict — Northern Beaches retains the most extensive remnant bushland of any Sydney LGA. Hawkesbury Sandstone soil predominant — deep rock excavation $40K–$200K+ is LGA-defining (the most rock-excavation territory of any Sydney LGA on a per-build basis). Class P/E coastal alluvial on Narrabeen Lagoon, Curl Curl Lagoon, Dee Why Lagoon, Manly Lagoon and Mona Vale Lagoon corridors — suspended slab + Class P/E footing engineering and dewatering required. Coastal acid sulphate soils (CASS) on lagoon margins drive specialist dewatering and acid neutralisation protocols. Coastal Hazard zones are LGA-defining — coastal erosion line affects Pittwater Road oceanfront properties at Collaroy, Narrabeen, Curl Curl, Dee Why, Mona Vale, Palm Beach (2016 storm event reset baselines on Collaroy/Narrabeen specifically; multiple oceanfront properties since required Council coastal-hazard reports for any DA). Bushfire-prone land overlays are LGA-defining — BAL ratings BAL-12.5 to BAL-FZ across virtually all bushland-fringe lots (Belrose, Davidson, Killarney Heights, Frenchs Forest, Forestville, Beacon Hill, Cromer, Allambie Heights, Oxford Falls, Terrey Hills, Duffys Forest, Ingleside, Bayview, Church Point, Avalon, Bilgola Plateau, Whale Beach, Palm Beach, Clareville, Newport bushland-fringe). RFS Bushfire Protection Assessment routine — non-combustible cladding, ember-screened openings, sprinklered eaves on BAL-FZ, Asset Protection Zone (APZ) 10–40m+ on most acreage. AWTS on-site sewer mandatory on RU2 acreage belt (no reticulated sewer on Ingleside/Terrey Hills/Duffys Forest/Oxford Falls). Sydney Drinking Water Catchment overlay on parts of Ingleside, Terrey Hills, Duffys Forest western edges and Pittwater foreshore — restricts AWTS dispersal field siting and adds NSW Health/WaterNSW referral. Riparian setbacks 10–60m on Narrabeen Lagoon, Curl Curl Lagoon, Dee Why Lagoon, Manly Lagoon, Mona Vale Lagoon, Pittwater foreshore, Cowan Creek tributaries, Middle Harbour and North Harbour. Foreshore Building Line restrictions on direct waterfront across Pittwater (Bayview, Church Point, Clareville, Avalon, Newport), Middle Harbour (Clontarf, Seaforth, Balgowlah Heights), North Harbour (Fairlight, Balgowlah Heights) and ocean cliffs (Manly, Freshwater, Curl Curl, Narrabeen, Mona Vale, Newport, Bilgola, Avalon, Whale Beach, Palm Beach). The LGA has no rail — B-Line bus is the primary spine (Mona Vale terminus through Warringah Mall Brookvale interchange to CBD via Mosman). Beaches Link Tunnel (under construction, opening 2028) is the LGA-defining infrastructure event — twin tunnels under Middle Harbour connecting Cammeray to Balgowlah/Seaforth with portals reshaping traffic and property values across Balgowlah, Balgowlah Heights, Seaforth, Manly Vale and Manly. Northern Beaches Hospital (opened 2018, Frenchs Forest) anchors LGA medical employment and drives granny flat hospital-staff demand on Frenchs Forest, Davidson, Allambie Heights, Forestville, Belrose. Manly Hospital site redevelopment under master plan. Mona Vale Hospital site (Northern Beaches Hospital amalgamation legacy) under redevelopment. Warriewood Valley Release Area is the LGA's only active master-planned new-release on R3/R4 medium-density 300–600m² lots. Ingleside Precinct master-plan rezoning (originally proposed for ~3,400 dwellings) under review/paused. The Corso, Manly is the heritage retail spine. Avalon, Newport, Mona Vale, Collaroy, Dee Why, Brookvale and Manly are the primary commercial centres. Premium clifftop ocean-view properties at Manly, Freshwater, Curl Curl, Avalon, Bilgola, Whale Beach, Palm Beach are among Australia's most expensive residential markets ($8M–$30M+ on Palm Beach alone).

Duplex builder in North Curl Curl — key facts

Suburb: North Curl Curl, NSW 2099
Council / LGA: Northern Beaches Council (Northern Beaches)
Primary zoning: R2 Low / R3 Medium (Manly, Dee Why, Brookvale, Mona Vale, Avalon town centres) / RU2 Rural Landscape (Ingleside, Terrey Hills, Duffys Forest, Oxford Falls) / E3/E4 Environmental on bushland fringe
Typical lot size: 450–800m²
Soil class: Class Hawkesbury Sandstone predominant (deep rock excavation $40K–$150K+ on most lots) / Class P/E coastal alluvial on Narrabeen/Curl Curl/Dee Why/Manly/Mona Vale lagoon corridors / coastal acid sulphate soils (CASS) on lagoon margins / coastal hazard zones on Collaroy–Narrabeen, Curl Curl, Dee Why, Manly, Mona Vale, Palm Beach beachfronts
Median house price: $2.8M–$5.5M+ (oceanfront)
Home era: 1920s–1960s heritage + premium contemporary
Typical price range: $750,000 – $1,500,000+
Typical timeline: 14–22 months design to handover
Approval pathway: CDC for compliant dual-occupancy, else DA

Building in North Curl Curl — Local Context

North Curl Curl Block Realities

Typical North Curl Curl blocks are 450–800m² on Class Hawkesbury Sandstone predominant (deep rock excavation $40K–$150K+ on most lots) / Class P/E coastal alluvial on Narrabeen/Curl Curl/Dee Why/Manly/Mona Vale lagoon corridors / coastal acid sulphate soils (CASS) on lagoon margins / coastal hazard zones on Collaroy–Narrabeen, Curl Curl, Dee Why, Manly, Mona Vale, Palm Beach beachfronts ground (extremely reactive clay). For a duplex, the structural envelope is more constrained than the headline lot size suggests — once you subtract setbacks, easements, landscaped area requirements, and any tree preservation, the actual buildable area is usually 35-45% of the block. We map that early in the feasibility stage so you're designing to what's actually allowed, not what looks possible from the title plan. Foundation cost band on most North Curl Curl blocks: $45,000–$80,000.

Approval Timeline for North Curl Curl

Realistic timeline for a duplex in North Curl Curl: 8–14 weeks for DA through Northern Beaches Council. Add 2–4 weeks before lodgement for documentation, BASIX certificate, geotech report, and survey if you don't already have one. Duplex applications in Northern Beaches sometimes attract objection during neighbour notification — usually overlooked privacy concerns or boundary fence disputes. We design for that risk upfront. Construction Certificate is issued separately before works commence.

North Curl Curl Build Economics

North Curl Curl sits in the $2.8M–$5.5M+ (oceanfront) price band, which is the framing for any duplex development decision. On a 450–800m² block here, the build-versus-buy maths usually favours dual occupancy where the lot meets 600m² (Manly/Pittwater legacy R2) / 700m² (Warringah legacy R2) / varies by precinct under Northern Beaches LEP minimum and zoning allows. Free Buildana feasibility runs the numbers against your actual block before any commitment.

Designing for the North Curl Curl Streetscape

North Curl Curl's housing stock is predominantly from the 1920s–1960s heritage + premium contemporary. B-Line bus to CBD (Brookvale interchange) station is the rail anchor for the suburb. The local anchor is North Curl Curl Beach + North Curl Curl SLSC. For a duplex development, the streetscape question matters more than most builders admit — a brand-new double-storey on a street of single-storey 1920s–1960s heritage + premium contemporary weatherboards will draw council attention on bulk and scale, even if technically compliant. Buildana designs the front elevation to read appropriately for the street while modernising the floor plan and structure behind it. Materials palette, roof pitch, fenestration rhythm — all chosen to settle into the existing rhythm rather than fight it.

Realistic North Curl Curl Timeline

End-to-end timeline for a duplex development in North Curl Curl, lodgement-realistic: 8-14 weeks for DA, depending on neighbour notification and any RFI rounds. Add 2-3 weeks for documentation pack assembly before lodgement (BASIX, geotech for Class Hawkesbury Sandstone predominant (deep rock excavation $40K–$150K+ on most lots) / Class P/E coastal alluvial on Narrabeen/Curl Curl/Dee Why/Manly/Mona Vale lagoon corridors / coastal acid sulphate soils (CASS) on lagoon margins / coastal hazard zones on Collaroy–Narrabeen, Curl Curl, Dee Why, Manly, Mona Vale, Palm Beach beachfronts, contour survey, hydraulic). Add 1 week for Construction Certificate post-approval. Construction itself runs 9-14 months once you're on the ground. Buildana provides a dated programme in every contract, not a vague "12-18 months" range.

Builder's Take on North Curl Curl

Rental yield analysis for North Curl Curl: attached duplexes typically rent about 95% of what a detached would — the cost saving on construction (roughly $200K–$300K less than detached) usually outweighs the rental difference. For investors, attached is almost always the better play unless the land premium supports detached.

Council contributions in Northern Beaches Council can run $10K–$60K for a duplex depending on dwelling size and site. These aren't always obvious up front. Buildana flags the contribution estimate during feasibility so your project budget isn't short on line 47 of the DA conditions.

North Curl Curl vs Nearby Suburbs

North Curl Curl vs nearby suburbs — key metrics for building a duplex.

Suburb	Median Price	Typical Lot	Soil Class	Min Duplex Lot	Station
North Curl Curl2099this suburb	$2.8M–$5.5M+ (oceanfront)	450–800m²	Class Hawkesbury Sandstone predominant (deep rock excavation $40K–$150K+ on most lots) / Class P/E coastal alluvial on Narrabeen/Curl Curl/Dee Why/Manly/Mona Vale lagoon corridors / coastal acid sulphate soils (CASS) on lagoon margins / coastal hazard zones on Collaroy–Narrabeen, Curl Curl, Dee Why, Manly, Mona Vale, Palm Beach beachfronts	600m² (Manly/Pittwater legacy R2) / 700m² (Warringah legacy R2) / varies by precinct under Northern Beaches LEP	B-Line bus to CBD (Brookvale interchange)
Curl Curl2096	$3.0M–$6M+ (oceanfront)	450–800m²	Class Hawkesbury Sandstone predominant (deep rock excavation $40K–$150K+ on most lots) / Class P/E coastal alluvial on Narrabeen/Curl Curl/Dee Why/Manly/Mona Vale lagoon corridors / coastal acid sulphate soils (CASS) on lagoon margins / coastal hazard zones on Collaroy–Narrabeen, Curl Curl, Dee Why, Manly, Mona Vale, Palm Beach beachfronts	600m² (Manly/Pittwater legacy R2) / 700m² (Warringah legacy R2) / varies by precinct under Northern Beaches LEP	B-Line bus to CBD (Brookvale interchange)
Dee Why2099	$1.9M–$3.5M (apartments $700K–$2M; oceanfront $4M+)	400–700m² + R4 apartment-led precinct	Class Hawkesbury Sandstone predominant (deep rock excavation $40K–$150K+ on most lots) / Class P/E coastal alluvial on Narrabeen/Curl Curl/Dee Why/Manly/Mona Vale lagoon corridors / coastal acid sulphate soils (CASS) on lagoon margins / coastal hazard zones on Collaroy–Narrabeen, Curl Curl, Dee Why, Manly, Mona Vale, Palm Beach beachfronts	600m² (Manly/Pittwater legacy R2) / 700m² (Warringah legacy R2) / varies by precinct under Northern Beaches LEP	B-Line bus to CBD (Dee Why interchange)
Freshwater2096	$3.0M–$7M+ (oceanfront)	450–800m²	Class Hawkesbury Sandstone predominant (deep rock excavation $40K–$150K+ on most lots) / Class P/E coastal alluvial on Narrabeen/Curl Curl/Dee Why/Manly/Mona Vale lagoon corridors / coastal acid sulphate soils (CASS) on lagoon margins / coastal hazard zones on Collaroy–Narrabeen, Curl Curl, Dee Why, Manly, Mona Vale, Palm Beach beachfronts	600m² (Manly/Pittwater legacy R2) / 700m² (Warringah legacy R2) / varies by precinct under Northern Beaches LEP	B-Line bus to CBD (Brookvale interchange)

Median price, soil class, and lot size shape build feasibility and final cost. Buildana assesses every site against these and other constraints during the free feasibility stage.

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Quality Promise

Every Buildana duplex in North Curl Curl is built under a fixed-price contract — feasibility through to dual handover and subdivision.

Fixed-price duplex constructionNCC 2025 and BASIX compliantFull Northern Beaches Council complianceStrata or Torrens title subdivisionWeekly progress updates6-year structural warranty per dwelling

How It Works

From First Call to Final Key

Everything that has to be right before we touch the ground. We assess your North Curl Curl block — lot size (typical 450–800m²), width, R2 Low / R3 Medium (Manly, Dee Why, Brookvale, Mona Vale, Avalon town centres) / RU2 Rural Landscape (Ingleside, Terrey Hills, Duffys Forest, Oxford Falls) / E3/E4 Environmental on bushland fringe zoning, setbacks, FSR, landscaped area requirements under Northern Beaches Council's LEP and DCP. Minimum lot for duplex: 600m² (Manly/Pittwater legacy R2) / 700m² (Warringah legacy R2) / varies by precinct under Northern Beaches LEP. You'll know viability before spending on design. Design phase covers unit layout, access, parking, private open space, and waste management for dual occupancy on your North Curl Curl site. You approve final plans before we move to lodgement.

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The North Curl Curl construction phase. Fixed price, programmed, supervised. Duplex approvals get scrutinised harder than single dwellings — neighbour notification, overshadowing, privacy, traffic, waste. Our SEE addresses each on the front foot rather than reactively. Cleaner submission, fewer conditions, faster CC. Fixed-price construction of both dwellings from slab to keys. Class Hawkesbury Sandstone predominant (deep rock excavation $40K–$150K+ on most lots) / Class P/E coastal alluvial on Narrabeen/Curl Curl/Dee Why/Manly/Mona Vale lagoon corridors / coastal acid sulphate soils (CASS) on lagoon margins / coastal hazard zones on Collaroy–Narrabeen, Curl Curl, Dee Why, Manly, Mona Vale, Palm Beach beachfronts engineered footings, frame, lock-up, internal fit-out, and external works. Weekly progress reports.

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The job isn't done when the site's clean; it's done when you have keys, certificates and warranties. Subdivision registration starts in parallel with final fitout so titles issue close to handover, not 6 months after. Buildana coordinates the surveyor and Northern Beaches Council clearance — important if you're planning to sell one side immediately to fund the next move.

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Our Team

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Founder / Director / Builder · MPropDev · PhD Student

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Accounts Manager

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Project Manager

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