Plans for a seasonal marquee, service tent and toilets at the historic Came House on the outskirts of Dorchester have been agreed – although initially only for a year.

The estate moved the marquee location after a neighbour told Dorset Council that he believed the original site would probably increase the disturbance to himself and others.

Dorset Council's environmental health team also raised concerns, which has now led to a 12-month trial period being agreed after which the impacts on those living nearby will be assessed.

In a letter to the council, an agent for the estate said that the changed location and rotation of the marquee, together with effective stewarding, would reduce the impact of events, mainly weddings.

Income from the events will help pay for the upkeep of the grade I listed property.

Agent George Whittaker said the different location would also result in more effective sound dampening, helped by large hedges and trees.

"It should be noted that neither the estate nor the council have received any complaints of any sort relating to noise or disruption caused by any previous event/s," he added.

"Weddings have been operating at Came House for a number of years without objection.

"The application also seeks to further develop and to upgrade the associated infrastructure and service facilities, ensuring the future growth and success of the enterprise, which is essential to ensure the longevity and sustainability of both Came House and the wider estate."

Historic England had offered Dorset Council advice on the application, although did not object. It said that with a grade 1 listed the house was among just 2.5% of all listed buildings to enjoy the status.

It welcomed switching events out of the house into the marquee, telling the council: "Historic England acknowledge that there are benefits associated with the relocation of larger weddings and functions into a temporary structure within the gardens: the reduction of wear and tear on the principal rooms in the house as a result of their use for such events, but also the increased capacity of the venue, generating greater income for repair and maintenance of the listed building."

In a later comment, after the amended location was submitted, Historic England said: "We are satisfied with the position size and style of the marquee and that a balance has been achieved between functionality and the visual sensitivity of the site, given the discreet location chosen and the seasonal nature of the use."

The site is said to be barely visible from the adjoining road and bridleway, with the house set back in its own parkland and some distance for public access points.

Car parking will be in an adjoining field which is well drained and dry between April and October.

The use of the marquee, tent and toilets will be limited to 28 weeks during the summer.