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02 9980 1000


Suite 3A, 265-271 Pennant Hills Road Thornleigh NSW 2120

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No Job too big or too small!

Over 30 years of continual quality service and consulting in civil engineering,
town planning, surveying and project management.


At Group Development Services we provide you with a complete end-to-end service. We are a fully Australian owned and operated business. with a multi-disciplined group of professionals in the fields of civil engineering, town planning, surveying and project management. With an in-depth understanding of local and state government controls and legislation, our team will help you navigate your project to approval.

With hands on support, we deliver innovative design solutions to meet your infrastructure and land development requirements.

Core Services


Caddens Hill - Stage 7 update!

Kerb and basecourse is currently being installed on the internal road. Expecting asphalt to be laid in late January 2020.

For more information on Caddens Hill please click here.

Halcrows Road Cattai

From concept to completion, GDS delivering another end-end service to our clients. GDS have achieved Subdivision Certificate and the lots have now been registered with Land Registry Services. for 503 and 579 Halcrows Road Cattai.

GDS’s town planners received DA approval for 21 lots subdivision being 20 rural residential lots and 1 community association lot. Part of the project scope was also to upgrade the intersection of Halcrows Road and the private road.

GDS were the superintendants and project managers of the site. Our civil engineers designed all the hydraulic, stormwater and roads, and our surveyors and draftsman assisted in the registration of the subdivision.

Box Hill Heights

Box Hill Heights Stages 2 and 3 are now registered!

A total of 111 lots over Stages 2 and 3 have now been registered and are ready for building with a further 44 to follow in Stage 4. They are beautiful near flat blocks ranging from 350-600m2 with great views of the surrounding countryside.

The basins have been constructed using concrete canvas and are the first of their kind in Box Hill. This construction method is much more cost effective for temporary basins than permanent masonry retaining walls both for installation and removal.

Caddens Hill Stage 6 is ready for building!

 Limited lots are still available.

For more information on Caddens Hill please click here.

Caddens Hill Sports Precinct

Lights on and ready for action at the Caddens Hill
Sport Precinct.

For more information on Caddens Hill please click here.

22 Stringer Road Kellyville

With remediation of land done, storm water drainage and hydraulic design and works, telecommunications and electricity are now underway.

GDS successfully received DA and a Section 4.55 approval, completed all the surveying and civil engineering including hydrology and hydraulic design, and storm water drainage, we are also the project managers and superintends for this rural cluster.

Click here for more updates ...



The Caddens Hill Sports precinct was officially opened by Penrith's Mayor, Cr Ross Fowler OAM, Well done to all involved.

Click here for more information ...

Construction has begun!

Bulk earthworks have started in preparation for implementation of the stormwater and hydraulic and road design from our civil engineers.

Group Development Services Pty Ltd received DA approval for 11 residential lots and 2 residue lots at
6-8 Barry Road Kellyville. Our civil design team of engineers and draftsman have designed all the hydraulic, stormwater and road drainage. We will be continuing on in a superintendency and project management capacity.

Land is now for sale. For more information contact
Ray White, Castle Hill.


With the last landscaping and signage works expecting to be installed shortly, these beautiful environmental living lots in Stringer Road Kellyville are ready for building,

Click here for more information ...

Caddens Hill Stage 7

Bulk Earthworks have commenced on Stage 7 of
Caddens Hill Estate. The site will be taking shape in the next month with roads boxed out.

Click here for more updates and "for sale" details ...

DA approvals for Leppington

GDS successfully achieved DA approval for remediation, demolition of existing structures and a subdivision of land over two development consents for property known as 48 and 64 Dickson Road, Leppington.

(Pictured is 64 Dickson Road plans)

Two separate approvals were achieved and ultimately create 108 residential lots and 13 residue lots for future residential development as well as associated site works and road construction.


A regional city embraces and gears-up
for change.

While there are further delays to implementing the Department of Planning Industry and Environment’s Low Rise Medium Density Housing Code, Albury City Council has engaged GDS to develope new residential design guidelines to prepare this regional city for the ‘new’ housing types addressed by the Code. We have been able to simplify the Code’s controls, using an innovative approach to setting out performance-based guidelines for terraces, manor houses, and other forms of housing.

Please click here for our complete comments

Local Strategic Planning Statements

Delays in introducing strategic initiatives in local government when directed by the NSW Government is par for the course these days. Councils have again been given more time to prepare their statements. Regardless, The Hills Shire has pushed ahead and prepared it’s draft statement, which is on exhibition until August 9. As a significant amount of work GDS does is in The Hills Shire, we have examined certain aspects of this Council’s draft Local Strategic Planning Statement and the key implications for future residential growth management in this rapidly growing area.

Please click here for our complete comments

And the WINNER is ... Caddens Hill!

The Urban Taskforce Development Excellence Awards 2019, WINNER of the Greenfield Development section is Caddens Hill. Congratulations Legacy Property and to all involved.

Group Development Services are the project managers and superintendents of this site.

“The Urban Taskforce Development Excellence Awards 2019, acknowledge developments that achieve the best outcomes for all stakeholders in terms of client requirements, environment, business and community considerations; as well as time, cost and quality.”

Well done everyone!

Click here for more updates ...


Our Services


  • Strategic planning
  • Development planning and assessment
  • Planning Proposals (rezoning applications)
  • Planning statements
  • Submissions to council
  • Preparation of strategies and planning instruments
  • Development Control Plans, Developer Contributions and Voluntary Planning Agreements
  • Expert evidence
  • Consultation, negotiation and mediation
  • Urban design and master planning
  • Master plan design
  • Planning – project management
  • Due diligence and feasibility studies


  • Hydraulic and hydrology design and modeling
  • Bulk earthworks
  • Civil design
  • Water sensitive urban design
  • Retaining walls design
  • MUSIC modeling - water quality and treatment



  • Contract administration - including project management and development superintendency
  • Selection and management of sub-consultants
  • Tender documentation
  • Construction contract analysis
  • Investigation and delivery of infrastructure
  • Construction and project management


  • Topographical surveys
  • Detail plans
  • Linen plans (plans of subdivision)
  • Boundary re-definition plans
  • Draft 88B Instruments
  • 88B interpretation
  • Draft community development contracts
  • Draft community management plans
  • Final subdivision plans
  • Detailed advice on all titling matters and Land Registry Services NSW procedures