Guardian of the Abyss Laura Stephen's antique shop is located in Hill Avenue, just down from the old Post Office which you can clearly see in the screen shot below.
Charlie Boy The same shop as used for Laura Stephens antique shop in Guardian of The Abyss, is usedas Heinz's antique shop in Charlie Boy. Although you don't get to see an exterior shot, youcan see from the items hanging in the shop window and the view of the road outside, thatthe two locations are the same.
You can see the Fiat garage opposite, which in the Guardian scene have had their for salesigns removed. You can also see opposite Davies Furnishings Ltd which was and still is locatedat Sycamore Place, Hill Avenue.
Carpathian Eagle St. John's Methodist Church on Woodside Road was used as the location for the police station. Credit goes to IMDB website.
After years of searching and wondering, Kevin Flanagan has finally discovered the location of the business man's house. It's Tudor House on Sycamore Road, in Amersham.