Civil Defence plans to create "safe corridors" to buildings within Christchurch's quake-ravaged central business district.

Police have named another seven victims of last month's Christchurch earthquake.

More than 10 per cent of buildings demolished in Christchurch following last month's quake were levelled without the knowledge of their owners.

The Government's coalition partners have been warned their pet projects will not be exempt from the drive for savings in this year's Budget, with funding for the Act Party's taskforce and Maori Party's Whanau Ora scheme under review.

A group of about 30 Christchurch business people protesting over not being allowed into their CBD businesses have met with Civil Defence officials this afternoon after angry protesters broke through the red zone cordons yesterday.

Civil Defence could have communicated better with frustrated business owners in Christchurch, its minister John Carter says.

The Government has announced a $6.85 million "needs-based" economic recovery plan to help Canterbury businesses get back on their feet, which has been welcomed by local groups.

Real estate agency Bayleys Canterbury is predicting a broader but lower central business district will arise in Christchurch after last month's earthquake, while demand is expected to escalate for residential properties in more stable areas

Christchurch police say they will arrest any business owner who deliberately breaches a cordon in the CBD.

About 120 Christchurch business owners stormed the inner-city cordon yesterday.

Some government programmes will be axed as budget spending is cut to pay for rebuilding Christchurch, Prime Minister John Key says.