Hastings Project – Acreage Landscape Documentation Within Coastal Wetland & Bushfire Constraints

Project Overview

Large acreage properties are often perceived as providing unlimited development opportunities.

In reality, environmental constraints can significantly reduce the usable portion of a site and dramatically influence where development, planting and landscape improvements can occur.

This Central Coast project involved two adjoining lots held and managed as a single property. While the total site exceeded 7,300m², more than 5,200m² fell within mapped Coastal Wetland and Biodiversity Value areas, leaving less than one-third of the property available for development and landscape works.

The proposed works included upgrades to the existing residence, outdoor entertaining areas, swimming pool and recreation facilities while navigating environmental protection requirements, bushfire considerations and vegetation management constraints.

Key Design Constraints

The project involved balancing several competing requirements:

Mapped Coastal Wetland constraints
Biodiversity protection requirements
Bushfire Prone Land considerations
Existing vegetation management
Tree retention and removal requirements
Limited developable land despite a large overall property size
Swimming pool integration
Recreation area planning
Stormwater infrastructure requirements
Long-term landscape maintenance and functionality

Design Response
1. Understanding The True Usable Site Area

One of the most significant planning challenges was recognising that the entire site could not be treated as developable land.

Although the property exceeded 7,300m², mapped Coastal Wetland and Biodiversity Value constraints covered the majority of the landholding. Landscape calculations and design decisions therefore focused on the smaller area available outside the protected environmental zones.

This fundamentally changed how development opportunities were assessed across the property.

2. Working Around Coastal Wetland Constraints

No landscape works were proposed within mapped Coastal Wetland areas.

Instead, the landscape strategy focused on protecting environmentally sensitive land while accommodating required improvements within the developable portion of the site.

The project demonstrates how environmental overlays do not simply influence planting decisions—they can dictate where development can and cannot occur.

3. Tree Removal, Compensation & Environmental Protection

An additional challenge involved balancing tree removal requirements with environmental constraints and site functionality.

While tree removal can often be compensated through replacement planting, this becomes more complicated when:

Large portions of a property are protected environmental land
Bushfire requirements influence vegetation management
Asset Protection Zones need to be maintained
New built structures reduce available planting opportunities

In this case, replacement planting needed to be carefully considered alongside bushfire planning, usable landscape space and long-term management objectives.

4. Bushfire Planning & Landscape Design

The site was also affected by Bushfire Prone Land requirements.

This created an additional layer of complexity, as vegetation objectives needed to be balanced against:

Asset Protection Zone requirements
Viewline management
Ongoing vegetation maintenance
Future safety obligations

The project highlighted how landscape design within bushfire-prone areas often requires a different approach to planting and vegetation management than conventional residential projects.

5. Integrating Outdoor Lifestyle Features

The proposed improvements included a swimming pool and outdoor recreation facilities.

The challenge was not simply finding space for these elements, but integrating them into a site already constrained by environmental mapping and bushfire considerations.

Each design decision needed to consider:

Available developable land
Existing vegetation
Future maintenance requirements
Environmental protection obligations
Long-term usability
6. Stormwater & Site Infrastructure

The landscape documentation also coordinated stormwater infrastructure, drainage requirements and associated site works.

Rather than treating landscape proposals as an isolated design exercise, the project integrated environmental planning, stormwater management and outdoor amenity into a coordinated landscape response.

Technical Resolution

Key outcomes achieved through the landscape design included:

Recognition of environmental constraints across the broader site
Protection of mapped Coastal Wetland areas
Coordination of bushfire planning requirements
Assessment of tree retention and removal implications
Integration of stormwater infrastructure
Accommodation of outdoor recreational facilities
Landscape planning across a constrained developable area
DA-ready landscape documentation

Outcome

The final landscape strategy balanced environmental protection, bushfire requirements and outdoor lifestyle objectives within a highly constrained acreage property.

Rather than focusing solely on planting design, the project required careful coordination between environmental mapping, vegetation management, development opportunities and long-term site functionality.

The result was a landscape response that acknowledged the realities of the site while supporting the client's vision for the property.

Project Insight

Large properties are not always easy properties.

This project demonstrates how environmental constraints can fundamentally change the way a site is planned and developed.

When Coastal Wetland mapping, biodiversity considerations, bushfire planning, vegetation management and outdoor amenity requirements all intersect, landscape design becomes a process of balancing competing objectives rather than simply allocating planting areas.

The project highlights the role landscape documentation can play in helping navigate complex environmental and planning constraints while still delivering practical outcomes for property owners.