We are here to help you with your utility infrastructure needs

Our services are tailored to manage existing and new utility infrastructure. Our specialist teams bring knowledge, understanding and experience of the complex issues and create client focused solutions.

Existing Utility Apparatus/C2 Searches
Existing Utility Apparatus/C2 Searches

Gattica can undertake a comprehensive search of all known utility infrastructure within a client’s area of interest/boundary.

• Thorough searches are undertaken and catalogued on an affected / non affected basis
• All requests for utility records are managed until a response has been received as either affected or not affected
• Records are reviewed to ensure clarity of detail & legibility
• Compliant PAS128 QLD responses are collated into a logical and referenced file format for issue digitally
•Issued packages of data assist in ensuring clients comply with safety requirements under CDM regulations

Received records can be digitalised in various formats including the latest AutoCAD version or dynamic drawings (PDF) as folders and work packs.

Existing Services Drawings (ESD)
Existing Services Drawings (ESD)

The existing utility services are representative of a desktop survey (PAS128 QLD) and reflect the Statutory Undertakers plans as they are depicted. Data is collected from relevant affected providers and is digitised into CAD format by displaying all known utility apparatus. The layered mapping is delivered in several digital formats. Gattica operates within guidance outlined within the latest industry standards. Each utility asset type is defined as an individual layer detailing one of the following:

• Status of services
• Nature of the system
• Disconnections/abandonment drawings
• Asset owner within layer name

Due Diligence Reports
Due Diligence Reports

Gattica use the latest desktop information tools, search engines, utility owner data, and site survey technologies to determine all existing
utility networks and apparatus contained within and in close proximity to a project boundary. Based on the information received and detailed multilayer utility mapping, Gattica are able to interrogate, and report on the constraints/risks that emerge from the data, for the apparatus present on a site.

This may include:
• Utility apparatus clashing/constrained by new project designs
• Local networks capacities for new supply points of
connections and reinforcements
• Legal issues with constraints, easements, wayleaves, and leases

Gattica also give advice, including breakdown of costs and timescales
for all aspects of engagement with the network/apparatus owners.

Utility Clash Detection (UCD)
Utility Clash Drawing (UCD)

Data received from existing apparatus searches are collated within a tracker, detailing who are either affected or not by the scheme. This information is then clash-checked against a project’s multiple intervention layout options. Gattica are able to interrogate and report on the opportunities and risks that emerge from this data, for example, anticipated programme durations and costs for managing the various solutions for the clashes.

Cost/Programme & Planning
Cost/Programme & Planning

Utility diversion & protection works can form a significant percentage of a schemes budget. Using an internal database
of costing information gathered from years of close relationships with Statutory Undertakers, paired with the experience of
in-house specialists, the Gattica team, they are able to:

• Provide indicative programme durations based on experience or similar schemes
• Provide likely utility diversion or protection costs
connections and reinforcements
• Provide guidance with regards to the next steps including focused survey or where required interface with potentially affected SU’s specifically where high-risk plant is affected

Disconnections/Abandonment Management
Disconnections/Abandonment Management

Existing buildings/structures within the development area pose challenges when it comes to utilities. The difficulty that comes with existing connections is that not all Statutory Undertakers provide existing connection information. Once these services are identified, Gattica will undertake the following:

• Identification of affected infrastructure
• Feasibility studies to minimise impact of apparatus/project constraints and providing design solutions that coincide with the project programme
• Engagement with Statutory Undertakers for the disconnection and abandonment of services Along with certification of works undertaken and proof of disconnected services i.e., purge certificates for gas
• Advice on contestable and non-contestable works
• Producing a disconnection/abandonment plan
• Advice on legal requirements for disconnection/abandonment of certain apparatus that may have easements/wayleaves/leases i.e., substation buildings/enclosures

Diversion/Relocation/Protection Management
Diversion/Relocation/Protection Management

Through discussions with the project design teams and then the utility apparatus owners, a projects interfaces and clashes can be managed to best suit all parties. Whether this is via diversion, protection, or relocation of an asset.

Gattica services include managing the following:

• Identification of affected apparatus (NRSWA C2 searches)
• Feasibility studies to minimise impact of apparatus/project constraints and
providing design solutions
• Engagement with utility apparatus owners for both budget design (NRSWA C3)
and detail design (NRSWA C4)
• Advice on contestable and non-contestable works
• Guidance on protection works
• Producing diversion drawings (2D/3D)
• Advice on legal requirements for relocation of apparatus and enclosures


Master planning and design of utility infrastructure networks is the key to success. For existing infrastructure, the planning and design of diversions and relocation of apparatus will drive cost, planning and phasing. For new infrastructure networks the smart planning, innovative design and engagement of all stakeholders will deliver an integrated and coordinated design – All leading to cost and program certainty.

New Network Procurement
New Network Procurement

The actual process of procurement of new supply networks requires specialist knowledge. Often, developers will default to the Incumbent Utility Provider for their new supplies, whereas there are various alternative commercial solutions that are far more favourable and cost effective.

Gattica has worked extensively with clients and developers, managing the various procurement options.

Based on the clients and projects needs and drivers Gattica are able to approach the market independently, for best fit solutions. Over the years, in taking this approach Gattica have generated millions of pounds of savings and asset values for our clients.

Detailed Network Design
Detailed Network Design

Regeneration projects, new developments and infrastructure projects are all dependant on new utility networks.

Gattica Associates specialise in guiding a project through master planning and then developing the infrastructure designs through to various stages of design.

For networks to be approved for construction and ultimately adoption, the designs will progress through detailed design (WIRS/NERS/GIRS) and be issued to the Adopting Authority for agreement and sign off.

Gattica’s in house design team can guide a project through this stage, producing the detailed designs to industry standards and specifications.

2D/3D Modelling

Our 2D design process

Depending on the project scope, Gattica will produce a 2D representation of all the stages of the design from utility record drawings to as built drawings. All the drawings have the relevant reference files, frames, and notes, in conjunction with very specific line types to convey information presented in all stages of the project.

What 3D design can help with

Regardless of complexity, Gattica 3D models can be created from any data source. They can be used for 3D spatial co-ordination, scheduling, and clash detection purposes within a federated BIM Model (Project Information Model).

Space Planning/Clash Detection
Space Planning/Clash Detection

Reviewing designs as a project team provides early stakeholder and client engagement as well as a structured process for capturing and addressing design issues and technical queries.

The aim of the clash checking element of the Design Review process is to utilise automatic interference checking software to resolve design interferences between the elements, particularly between different design disciplines, so that coordination errors on site are minimised.

Gattica can take other discipline design elements into consideration whilst space planning utility infrastructure. Advise can be given to other disciplines with regards to required offsets from existing, diverted and new utility infrastructure. Where space is at a premium Gattica can provide guidance with regards to utility placement and where necessary arrange the required agreements or further guidance from Statutory Undertakers.

Additional Services

Gattica can provide additional services to further improve the progression of the delivery a project.


Existing and new utility infrastructure, comes
with a myriad of legal constraints. Gattica’s in-depth knowledge and experience is widely
used by clients.


Technical Assurance for a project’s utility design, costing, programming, and delivery is a role more and more clients are now relying on.


This role may take the form of an employer’s agent or client monitoring role, liaising with
all parties to ensure the best delivery of the construction phase.


All as built information is prepared in accordance with the relevant Adopting Authorities standards.


The commercial team have specialist knowledge of managing all aspects of commercial arrangements on existing apparatus and for new supply networks.


Gattica adopts BIM methodology throughout the whole life cycle of a project by creating and managing information that meets ISO 19650 series requirements. Efficiency is achieved by enabling consistency, optimising time management and strategic decision-making.

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Gattica Associates Limited