Jilliby sits on the Sydney–Newcastle growth corridor with direct M1 Pacific Motorway access. Warner Business Park on the Hue Hue Road / Sparks Road precinct is the Central Coast’s largest industrial and business development site — and it is actively being built out. If you are buying a lot, lodging a DA, or planning a warehouse or industrial shed here, you need a builder who works from the operation and the site — not a generic brochure quote.
AJA Commercial Building is based in Medowie and delivers fixed-price design and construct for industrial and commercial projects across the Central Coast and Hunter. This page is the practical brief for Jilliby owner-occupiers and developers.
Why Jilliby and Warner Business Park matter now
Warner Business Park markets itself as a high-growth commercial and industrial location between Sydney and Newcastle, with direct M1 access, flexible industrial zoning, and demand from warehousing, trade, logistics and owner-occupiers (Warner Business Park).
Public reporting in July 2025 described active development at the estate: industrial unit construction, land sales, and Development Applications — including a proposed warehouse with office and car parking on Tinnula Drive. The same coverage notes the park as an 89 ha industrial and business site at Hue Hue Road / Sparks Road, Jilliby, with strong demand for industrial land on the Central Coast (Coast Community News, 11 Jul 2025).
Market listings for remaining lots commonly cite E4 General Industrial zoning, benched/serviced parcels, and M1 connectivity — useful context when you are comparing lot size, amalgamation options and what you can actually build. Always confirm zoning, covenants and services against the current Central Coast LEP / planning documents for the specific lot before you commit.
Bottom line for builders and buyers: Jilliby is not a “maybe later” industrial pocket. Lots are moving, sheds are going up, and the corridor logic (M1, Sydney–Newcastle freight, local workforce) is why owner-occupiers and developers are here now.
What owner-occupiers and developers need from a builder here
Most Jilliby briefs fall into a familiar industrial set:
- Warehouse / distribution — clear height, racking loads, forklift aisles, hardstand and yard turning
- Trade / light industrial — workshops, storage, customer counter, washdown and waste
- Owner-occupier shed + office — amenities, parking, and a layout that still works in five years
- Developer multi-unit — repeated bays, shared services, fire strategy and a buildable programme
What you need from the builder is coordination, not slogans:
- Brief the operation first — vehicles, stock, plant, staff, customers, waste and future expansion. That brief drives slab, structure, openings and services.
- Choose a buildable system — structural steel, precast panels, or a hybrid. Match fire design, durability and procurement to the use — not to whatever was cheapest last month.
- Design & construct with a clear scope — AJA’s D&C approach ties design decisions to a fixed-price quote with assumptions and exclusions stated in plain language.
- Industrial and warehouse delivery — see industrial construction and warehouse construction for how we typically run those packages.
Nearby proof: Morisset
Jilliby and Morisset sit on the same M1 corridor. AJA’s recent industrial work at 55 Gateway Boulevard, Morisset is nearby proof that we already deliver this class of build on the Lake Macquarie / Central Coast side of the motorway — not only in the Hunter.
If you have a Jilliby lot or DA in train, send the address, intended use and any plans — we will tell you what information is still needed before a fixed-price quote makes sense.

How AJA works Central Coast and Hunter
AJA is based in Medowie (Port Stephens) and works Central Coast and Hunter industrial/commercial projects as a practical, project-led service: brief → site issues → design coordination → clear fixed-price scope → build.
What matters for your Jilliby project is whether the team can coordinate consultants, resolve slab/height/dock/fire early, and deliver a controlled programme on an E4 industrial lot.
Designed for two tenants — or one later
Nearby at Morisset / Gateway Boulevard, AJA delivered a design-and-construct warehouse for investor clients who did not yet know the end tenant for roughly 1,200 m². The team used a flexible thermal panel building system and a removable wall down the middle of the warehouse so owners could lease to two tenants — or later remove the wall if one tenant wanted the whole space. That is a practical value-add of design-and-construct: cost-efficient options that protect leasing flexibility.


Practical checklist before buying a Jilliby lot or starting DA
Work through these with your consultants and council path — before you lock a builder price you cannot defend.
- Zoning and use — Confirm E4 (or other) zoning, permitted uses, height/setback controls and any estate covenants for the specific lot.
- Services and levels — Power (including 3-phase if needed), water, sewer, stormwater, NBN; confirm benched levels versus fill/cut and slab design.
- Access and docks — Semi turning, forward entry/exit if required, roller door positions, hardstand and neighbour interfaces.
- Structure and height — Eave/clear height for racking and plant; steel versus precast decision tested against fire and programme.
- Fire and NCC — Fire engineer input early on larger warehouses; hydrants/sprinklers as required; do not leave fire as a late surprise.
- Approval pathway — DA versus CDC depends on the proposal and site. AJA can coordinate builder information with your design team; you and your consultants own the planning advice to Central Coast Council.
- Scope for quoting — Drawings, finishes, exclusions, owner-supplied items and allowances listed before you compare builders.
Focus on the lot and the building.
Short FAQs
Is Warner Business Park still worth considering if lots are selling down?
Active construction and remaining serviced lots still matter if your use fits E4 industrial and M1 access. Confirm what is left for sale or lease with current agents and estate documents — supply changes quickly.
Do you only build warehouses at Jilliby?
No. Warehouses are common, but trade, light industrial, owner-occupier shed-plus-office and multi-unit industrial are all in the mix. The brief drives the building.
Fixed-price — what does that actually mean?
A fixed-price quote is useful when the scope behind it is clear: assumptions, exclusions, allowances and responsibilities written down. Vague one-line prices are where variations hide.
Can you help if we already have an architect?
Yes. We can price and construct from a developed design, or work design & construct. Either way, coordination of structure, services and fire still has to happen before the quote is treated as final.
Where are you based relative to Jilliby?
Medowie. Jilliby / Warner Business Park is a straightforward M1 run for site meetings and construction management alongside Hunter work.
Talk to AJA about Jilliby
Planning a warehouse, industrial shed or commercial build at Jilliby, Warner Business Park, or nearby on the Central Coast? Send the lot address, intended use and any plans.