Structural engineers were called to a village near Dereham after a lorry crashed into a house on Wednesday morning.
The two-vehicle crash, involving a silver Toyota, happened in Shipdham and saw the lorry smash into a property in Market Street.
The road was closed in both directions between Pound Green Lane and Swan Lane following the crash at 6.30am and emergency services attended the scene.
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A spokeswoman for Norfolk Constabulary said the road would be closed for "quite some time" while structural engineers attended to the damage.
Drivers were asked to avoid the area and find alternative routes.
Market Street reopened just after 5.30pm, having been closed for more than 10 hours.
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