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Illustrative view of a survey instrument beside road and stormwater drainage assets

Specification Surveys (A-SPEC & ADAC) | HR Surveyors

Councils and asset owners require as-constructed data in a format their asset systems can read. HR Surveyors captures that data through construction, builds it to the authority's specification and template, validates it, and manages lodgement on your behalf — including through ACDC where required — to support the project's handover milestones.

Established 2012
70+ Qualified Professionals
5 Offices Australia-wide

Why Choose HR Surveyors?

Experience the difference of working with Australia's leading surveying professionals. Precision Delivered since 2012.

We lodge it, not just deliver it

We take the submission through the authority's required process ourselves, work through validation errors, and resubmit for validation. You are not left at the portal door with a zip file and a deadline.

Built to your authority's template, not a generic one

Where an authority requires an ACDC template, validation checks against that authority's requirements. We work to the template and submission process your authority is running, and confirm the specification and codelist versions before capture.

Captured while the asset is still open

Pit dimensions, pipe inverts and connection points are straightforward to record before backfill and can be difficult or costly to verify afterwards. We schedule capture against the construction programme so the as-constructed data is measured at the appropriate stages.

12+
Years Established
70+
Qualified Professionals
5
Office Locations

HR Surveyors delivers specification surveys across Victoria and nationally, from offices in Melbourne, Geelong, Perth, Brisbane and Adelaide.

For council-specific examples and a pre-submission checklist, read our guide to A-Spec as-constructed submissions in Victoria.

What we deliver

R-Spec — road reserve assets

Kerb and channel, pavement, signs, line marking, street furniture and the rest of the authority's assets within the road reserve, coded and attributed to the specification.

D-Spec — drainage and stormwater

Pipes, pits, property connections and WSUD elements, captured at the stages where they are exposed and attributed to the authority's codelist.

O-Spec — open space and recreation

Reserves, parks and landscaped open space, including play equipment, furniture and irrigation where the authority takes them on.

Water authority assets

Where a water authority owns the sewer and water assets, it may require a separate submission, portal and timetable. We handle council and water authority requirements and confirm each owner's process at the start.

Validation and lodgement

We check the package before submission, validate it against the authority's requirements, work through returned errors, and resubmit. A validation pass is the machine check; the authority's own review and acceptance are separate, and we tell you plainly which stage a submission is at.

Technical Specifications

Accuracy

Survey-grade capture using established control, to the tolerances the authority's specification requires for each asset class.

Equipment

Total station, GNSS, terrestrial laser scanning and UAV LiDAR and photogrammetry, selected to suit the asset and the site conditions.

Standards

A-SPEC (R-Spec, D-Spec, O-Spec) and ADAC, using the specification release, codelist and delivery format required by the receiving authority. ADAC delivery uses the authority's required XML schema. Submission is through ACDC or the authority's other nominated system.

Sectors We Serve

Residential subdivision Industrial and commercial estates Civil infrastructure and roads Public open space and recreation Water and sewer authority assets

Frequently Asked Questions

What is A-SPEC, and how is it different from ADAC?

Both are specifications for handing newly built assets to an asset owner as structured digital data. A-SPEC is managed by GISSA with the A-SPEC Community and splits into modules by asset type — R-Spec for the road reserve, D-Spec for drainage, O-Spec for open space. ADAC is managed by IPWEA-QNT and used by councils and utilities across Australia, with data delivered as XML to the receiving authority's requirements. The authority taking the assets determines which specification and version apply.

Who submits the data to the council?

The developer or consultant is responsible for the submission where the permit or contract requires it, but it does not have to be done in-house. We create and manage the submission on your behalf, including working through validation errors returned by the authority's system.

When does the as-constructed data need to be ready?

The timing depends on the authority and the project's permit or contract. Melton City Council requires its A-SPEC submission before a certificate of Practical Completion or Statement of Compliance is issued; Greater Dandenong requires it before Practical Completion. Confirm the milestone at the start and schedule capture against the construction programme.

Does a validation pass mean the council has accepted the assets?

No. Validation is an automated check of the file against the configured requirements. Acceptance is a separate decision by the asset owner after its own review. A clean validation supports that review; it does not determine acceptance or its timing. We are explicit with clients about which stage a submission has reached.

Featured Projects

Explore our portfolio of successful projects demonstrating our expertise and precision delivery across diverse challenges.

Golden Plains Wind Farm & East & Cressy Terminal Station
Infrastructure

Golden Plains Wind Farm & East & Cressy Terminal Station

Location: Victoria
Childs Road Upgrade, Epping to Mill Park
Infrastructure

Childs Road Upgrade, Epping to Mill Park

Location: Victoria
Victoria Park-Canning Level Crossing Removal Project
Infrastructure

Victoria Park-Canning Level Crossing Removal Project

Includes Beckenham, Carlisle, Queens Park, Cannington, and Oats Street Stations

Location: Western Australia
Mt Lindesay Highway Upgrade, Woodhill
Infrastructure

Mt Lindesay Highway Upgrade, Woodhill

Location: Queensland
Bookmark Creek Inlet Regulator, Renmark
Infrastructure

Bookmark Creek Inlet Regulator, Renmark

Location: South Australia
Nelwart Street Bridge, Crescent
Infrastructure

Nelwart Street Bridge, Crescent

Location: South Australia

Ready to see your project delivered with the same precision and expertise?

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Related Services

Discover complementary surveying services often combined with this solution for comprehensive project delivery.

Construction Surveying Services

Construction set-out, pickups and as-constructed documentation to support the work from site setup to handover.

Civil Engineering Surveying Services

Control networks, set-out and survey support for roads, drainage, subdivisions and civil infrastructure.

Land Surveying

Feature and level surveys, topographic data and site control to inform design and development planning.

Often Combined With These Services

Many clients choose to combine multiple surveying services for comprehensive project coverage and enhanced value delivery.

Ready to Start Your Specification Survey Project?

Send us the authority taking the assets, the approved design set and the construction programme, and we will scope the capture and the submission against that authority's requirements.

12+ years of surveying excellence
70+ qualified professionals
5 offices across Australia
HR Surveyors team in action
Precision
Delivered