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Ordnance Survey Accounts 1999-2000

Sir John Bourn, the head of the National Audit Office, has qualified his opinion on the 1999-2000 accounts of the Ordnance Survey, the government Agency responsible for the official mapping of Great Britain.

In his report to Parliament on the Agency’s first set of accounts as a Trading Fund, Sir John said that he had taken this step because the Ordnance Survey’s decision not to value the National Topographic Database, the definitive computerised map of Great Britain, had resulted in a significant understatement of the Agency’s tangible fixed assets. It may also have distorted the view given by measures of reported financial performance (e.g. the return on capital employed).

In 1999-2000, the Ordnance Survey’s turnover from the exploitation of information held on the database was nearly £100 million. On the basis of expert advice the NAO has estimated that the value of the database to the business is unlikely to be less than £50 million.

Ordnance Survey consider the database to be akin to intellectual property, and an intangible fixed asset, on which no value need or should be placed in the Agency’s accounts, in accordance with Financial Reporting Standard (FRS) 10 – “Goodwill and Intangible Assets”. This requires that internally generated fixed assets are valued, or ‘capitalised’, only where there is a readily ascertainable market value evidenced by an active market in similar assets.

However, in Sir John’s opinion this view is not consistent with normal accounting practice. Unlike intangible fixed assets such as trade marks, brands or patents, the National Topographic Database is an accurate representation of a physical reality, unaffected by opinion, taste, judgement, reputation or belief. It should therefore be accounted for as a tangible fixed asset and capitalised in accordance with general accounting practice, in particular Treasury guidance and FRS 15.

The uniqueness of the database means there are no direct parallels in government or the private sector. Further, the NAO consider that the database is analogous to internally generated software which, according to Treasury guidance and FRS 10, must be valued as a tangible fixed asset. This is because it represents expenditure both of continuing use in a business and supporting the generation of future economic benefits.

"The National Topographic Database is a unique national asset, the creation of which has been funded from public money over the years.

"Because I disagree with the view taken by the Ordnance Survey on the appropriate accounting treatment for this database, I have qualified my opinion on the Agency’s first set of accounts as a Trading Fund. The failure by the Ordnance Survey to recognise the database as a tangible fixed asset means that the Agency’s accounts do not provide Parliament with a true and fair view of the publicly owned assets under the Agency’s stewardship.

"Finally, and speaking more broadly, at a time when Ministers have decided, and Parliament has endorsed, that all central government departments and agencies should move to a new regime of resource accounts, wherein more attention is to be paid to the valuation of assets than had ever been the practice under the old style cash accounts, it is surprising to find an important body like Ordnance Survey seeking to turn its back on the thrust of the new approach."

Sir John

Notes for Editors


Ordnance Survey is a government department founded in 1791, and is responsible for the official, definitive surveying and mapping of Great Britain. Having become an executive Agency in 1990, Ordnance Survey acquired trading fund status in April 1999 under the provisions of the 1973 Government Trading Funds Act (as amended) giving it greater commercial freedom than in the past.

The move to trading fund status altered Ordnance Survey’s primary means of accountability to Parliament from an appropriation account showing only payments and receipts to a trading fund account prepared on a full commercial basis including a Balance Sheet and performance information such as return on capital employed.

Press notices and reports are available from the date of publication on the NAO website at Hard copies can be obtained from The Stationery Office on 0845 702 3474.

The Comptroller and Auditor General, Sir John Bourn, is the head of the National Audit Office employing some 750 staff. He and the NAO are totally independent of Government. He certifies the accounts of all Government departments and a wide range of other public sector bodies; and he has statutory authority to report to Parliament on the economy, efficiency and effectiveness with which departments and other bodies have used their resources.

PN: 73/00