Take time to get to know your house. Many errors which one regrets afterwards are due to hasty decisions. Go in, go out, turn around, sit down here and there, look at it during daybreak, nightfall, in sunshine and rain, think, dream, imagine the result. Try and understand your house.
To respect an old house, obviously it is better to repair it without modification. But modern life will no doubt force you to make a few changes.
The outside
To make it lighter, you may have to make one or two window openings. Never enlarge a window. It is better to create another one near the first one and always of the same height. Do not make doorways too low. No small window panes for a building less than 200 years old.
Shutters? Wide planks with two or three strong bars, rarely in "Z" form. Do not use varnish or "rustic" fittings painted black! Except in certain areas, your house should not be symmetrical. Do not look for symmetry on the outside.
Roofing
You may wish to use the attic space. You can make one or two skylights, but not too many! Think about making a gable window instead. They should be copies of local ones.
You can put in one or more small metal framed skylights which would not look out of place.
Look around at nearby chimney stacks. Small stacks look ridiculous.
Your house should not look too rigid.
Straight lines would not look right.
Plasterwork
As your house is a living thing, doubtless you must know never to use cement in its masonry. It stops the house breathing and retains humidity internally. Use slaked lime and certain types of natural hydrated lime. Stand back and you will see that it has a rare and mysterious quality — the charm is in its authenticity.
Look around you
The surroundings of the house are just as important as the house itself. Avoid fake "rusticity"; modern decorative ideas that would stand out and fill the owner with self- esteem; overdoing the flower beds; Thuya and Laurel hedges which were never planted in the countryside, Wouldn’t you want the house to be happy with you? Then keep it low key, letting local vegetation gently surround it. Your house belongs to the area and has a certain history. It was built where it stands with materials found there. As well as being a place in which to live and work, it was perfectly adapted for its use. That is why it is different from other nearby houses. Respect this.
Always be in keeping with local architecture and the countryside, and you will feel happy.
Take the time to study the characteristics of your building
Arrange the work schedule to your own choice
Use local materials, or those which you have been able to save
Keep the proportions harmonious
Preserve the charm of wells, dewponds, pigeon houses, bread ovens, trellised vines, and local vegetation…
Making hasty decisions
Starting several jobs without having a proper plan
Allowing yourself to be led astray by modern innovations
Installing windows that are wider than higher, and too high up
Screaming colour schemes, modern fencing, exotic additions
Small leafed vegetation (e.g. Thuyas, etc)