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Central Coast to the Northern Beaches, Sydney NSW

Custom granny flats: Central Coast to the Northern Beaches.

One, two and three-bedroom secondary dwellings built by Nathan Hendriks personally. Every job is turnkey: approvals, design, build, and handover under one contract, with one builder on the tools from day one.

Get a Free Quote Call 0498 188 478
10+Years on the tools
2027Booking now
1Builder, start to finish
What Nathan builds

Granny flats are the specialty. Carpentry is the foundation.

Born to Build is a registered carpentry and construction company. The 2026/27 focus is granny flats, but anything timber, framed or fitted-out is in scope.

Specialty Nathan Hendriks in hi-vis on a Born to Build granny flat job site
01 — Granny flats

Custom granny flats, built like real homes.

One, two and three-bedroom secondary dwellings tailored to your block. From fast-tracked CDC builds to architecturally finished add-ons: every job runs on Nathan's tools, Nathan's clock, and Nathan's standard.

  • Council and CDC approvals handled end-to-end
  • Site survey, plans and engineering included
  • Turnkey handover with full builder's warranty
Get a quote
Nathan and Mac out the front of a finished Born to Build home
02 — Extensions and additions

Built to blend, not bolt on.

Second-storey adds, deck-and-room combos, and outdoor rooms that match the existing house line-for-line. Roofline, eaves, cladding, paint: it all carries through so the addition reads as part of the original.

  • Structural framing and engineered tie-ins
  • Roofline and cladding matched to existing
  • Locked weather-tight schedule
Talk to Nathan
Nathan working on a balcony gutter, doing the trades work most builders sub out
03 — Carpentry and fit-outs

The core trade. Done by hand.

Decks, pergolas, internal joinery, kitchens, custom storage, feature timber walls. The detail work most builders sub out, Nathan keeps in-house. Because that's where the finish is won or lost.

  • Hand-built to spec. No flat-pack shortcuts.
  • Hardwood and engineered timber
  • Ten years of joinery and finish carpentry
Start a project
Floor plans

Six popular configurations, all customisable.

Start with one of these, or bring your own sketch. Every plan can be mirrored, extended, or re-spec'd.

Floor plan render Most booked

The Headland

🌐 2 bed 🚿 1 bath 📏 60m²

Open-plan living, north-facing deck, walk-in robe to the master. The crowd-pleaser.

Customise this plan
Floor plan render

The Pittwater

🌐 2 bed 🚿 1 bath 📏 55m²

Long, narrow footprint for tighter blocks. Side-entry, full-height glazing across the rear.

Customise this plan
Floor plan render

The Avalon

🌐 3 bed 🚿 2 bath 📏 70m²

Maxes the granny-flat footprint. Master ensuite, two minor beds, generous living and storage.

Customise this plan
Floor plan render

The Newport

🌐 1 bed 🚿 1 bath 📏 45m²

Studio-style. Big living, single bedroom, ideal for short-stay rental or solo dwelling.

Customise this plan
Floor plan render

The Manly

🌐 2 bed 🚿 2 bath 📏 65m²

Twin-master layout with both bedrooms sized for adults. Popular for share houses or extended family.

Customise this plan
Floor plan render Premium finish

The Palm

🌐 2 bed 🚿 1 bath 📏 62m²

Hardwood-clad exterior, vaulted ceiling, designer kitchen. The flagship spec.

Customise this plan
Plan explorer

Click around the plan.

Switch between 1, 2 and 3-bed layouts. Click any room to see its size and finish details.

Instant ballpark

How much does a granny flat cost?

Plenty of builders make you book a call before they'll talk price. Move the sliders, choose your finish, and get an honest range right now. No email, no follow-up, no phone tag.

Heads up: this is a ballpark, not a quote. Real numbers depend on the block, the finish, and how chunky the engineering gets. Use it to know what you're walking into, then book a free site visit for a fixed-scope quote.
FAQs

Common questions about granny flats.

Sydney granny flats from a quality builder typically land between $180k and $370k, depending on size, finish, and site conditions. A standard one-bedroom on an easy block starts around $180k. A premium two or three-bedder with a tricky site climbs from there. Born to Build quotes are fixed-scope after a site visit, never ballpark numbers off a brochure. The estimator above gives you a real range in 30 seconds based on your spec.

Yes, end to end. Most granny flats across the Northern Beaches and Central Coast go through the CDC (Complying Development Certificate) pathway, which is faster than a full DA. We handle the lodgement, the draftsman, and the certifier. If your block doesn’t qualify for CDC (heritage, flood, bushfire overlay, oversized), we manage the DA pathway too. You sign and wait.

Yes. The plans on this page are starting points. Mirror them, extend them, change the finish, swap a wall. Most jobs end up modified to suit the block, the brief, or the budget. Bring sketches, magazine cuttings, or a Pinterest board. Nathan will tell you what’s doable on your block before you commit to anything.

From slab to handover, most builds run 14 to 20 weeks once on site. Plans and approvals beforehand are usually another 8 to 12 weeks depending on the council pathway. Total from first call to keys is typically four to seven months. You get a published schedule before you sign the contract.

From the Central Coast down to Sydney’s Northern Beaches: Gosford through to Manly, Palm Beach, and beyond. Plus the Upper North Shore on selected jobs. If you’re outside that area, ask anyway, but realistically a local builder will serve you better.

Next: see how the build actually runs

Ready for a real quote?

Fill in the full enquiry form on the home page or call Nathan directly. Either way, you'll talk to the bloke who'll be on your job.

Send my brief Call 0498 188 478
Text Nathan