Proposals for the development of an historic London Colney landmark now include 200 new homes and an underground car park - just a mile from another propsed 200-new home development on the Harperbury Hospital site.

Residents got their first look at the future of the Victorian All Saints Pastoral Centre, in Shenley Lane, at a public exhibition of the plans on Saturday.

Comer Homes, who bought the former religious retreat for £6 million from the Diocese of Westminster in early 2013, plan to renovate the existing building, which dates from the early 1900s, into 30 luxury apartments.

The area to the west of the building - currently green fields - would also see a development of around 170 new homes of various sizes.

But residents were concerned about the impact of the large-scale redevelopment on the Napsbury, fearing it would impinge on site lines.

London Colney Councillor Jacob Quagliozzi noted the All Saints Pastoral Centre was close to another proposed 200-new home development at the former Harperbury Hospital Site, in Harper Lane.

He said it was also worrying that none of the proposed new homes in the development would be affordable housing.

He said: "I was pleased there was a strong turnout from residents at the consultation event at the weekend, it underlines the strength of feeling from local people over the future of this building and the wider site.

"I have been to visit sites which have been developed by the same developer and there remain a number of areas which I would like to see more detail on when it comes to these proposals.

"I’m going to be watching very closely to see what is submitted and I will do everything in my power to make sure local people get the best possible deal out of this development"

The adjoining chapel is set to be restored in the proposals, but has been deconsecrated and would be unlikely to be returned to its previous use.

Councillor Dreda Gordon, who also represents London Colney, said it was important to maintain public access to the site.

She said: "I attended Comer Homes exhibition at the weekend and listened to local residents who were raising concerns this development will have in terms of traffic and services.

"We want to ensure public access to the site remains and particularly access to the historic Chantry Island."

A full planning application on All Saints Pastoral Centre is expected to be submitted by Comer Homes in the second half of 2015.