Q. Is there a limit to the size of an extension I can build at the back of my house?
HMH: Yes. 40 square metres (about 430 sq.ft) but there are certain limitations you also need to be aware of. Any earlier (post 1963 extension) is taken out of this area. The area is an internal wall measurement but if a section of back wall becomes “internal” it’s area also needs to be included. The extension must be single storey except for 12 square metres which can be upstairs in a terraced or semi-detached house or 20 sq.m. for a detached house. This upstairs extension also need to be at least 2 metres from the site boundary. There are other restrictions on upper storey windows. Remember that if your house is a protected structure the above rules may not be assumed as the “character” of the house needs to be considered carefully.

Q. I live in a Cottage which is freezing in the winter. I put in double glazed windows ten years ago so what else can I do?
HMH: The most cost effective and simple insulation to install would be in the attic. If you have access to the roof space you could add to your insulation by rolling out more fiberglass, hemp or sheepswool. Bear in mind that new houses have 12 inches insulation depth while in my experience older houses at best have 2 to 4 inches and often none. If the cottage has sloped ceilings it would be worth taking them down to get the insulation on the slope but don’t rush at this without independent advice. Wall insulation is next and if your walls have cavities (many 1960’s houses do) you can get insulation pumped into them for little over €1,000. If walls are solid then either internal dry lining or external insulation can be considered. If the house is empty during a typical day I would favour dry lining as the house heats up quicker when you get home from a winter day’s work!

Need a visit? Contact Help My House for a fixed fee of €150. Ring Anthony Brabazon 668 3519 or visit helpmyhouse.ie on the web. Questions for this column can be sent to anthony@helpmyhouse.ie