Loft conversions in Bearsden

Bearsden has more variety than people assume: Victorian villas, garden suburb cottages, street after street of bungalows and post-1970 estates. Your starting point depends on which of those you live in, and in Westerton it can come down to listed building consent.

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Four kinds of Bearsden

Old Bearsden. Villas developed from the earlier 19th century, often with picturesque roofs that already have dormers. The low-density model carried on into the 1950s along streets such as Camstradden Drive West and Upper Glenburn Road. Denser flats came later, often on old villa gardens. That's according to the Old Bearsden conservation area appraisal (January 2021), and the area has been designated since 1989.

The bungalow estates. The same appraisal notes estates of bungalows bordering the conservation area at Kilmardinny, West Chapelton, Westerton and Hillfoot. These are good candidates to think about. A bungalow's whole footprint is under one roof, so the loft can be large. MyJobQuote's UK guide says a bungalow can often roughly double its living area.

Westerton Garden Suburb. Built between 1910 and 1930, with Raymond Unwin as consultant. Its low, steep roofs already have first floors partly or wholly in the roof space, with flat-roofed dormers on the front and skylights at the back. It's described in its own conservation area appraisal (January 2021).

Castlehill and Baljaffray. Wikipedia describes these as mainly post-1970, with South Baljaffray dating from the early 1970s and North Baljaffray from the 1980s. It adds that most of Bearsden's homes are detached or semi-detached. On a house of this age, ask whether the roof is trussed, because it affects the price.

Westerton: read this first

The appraisal says that in June 1988 all properties in the garden suburb were listed, at category B or C, apart from one extended block. So on almost any house in Westerton, a dormer means applying for planning permission and getting listed building consent too. It isn't impossible, but it's a different kind of project, and your starting point should be the council and a designer used to listed buildings. Don't start with a builder's quote.

The original front dormers there are flat-roofed. So the general guidance below doesn't tell the whole story for those houses.

The council's view on dormers

East Dunbartonshire is one of the councils with clear published guidance. Its Design and Placemaking guidance (2022 update) says:

• dormers should sit below the ridge line
• they should be set back from the wall head and sit within the hip of the roof
• they should be at least 50% glass
• large flat-roofed dormers won't normally be acceptable
• roof windows flush with the slope are supported as an alternative

This is what the council looks for when it decides an application. A rear dormer that's permitted development under Class 1D doesn't go through that assessment, but only if it meets every national limit. In the Old Bearsden and Westerton Garden Suburb conservation areas those rights don't apply to the roof at all. Some conservation areas here also carry Article 4 Directions, the council's FAQ booklet says, though it doesn't say which ones. Ask.

East Dunbartonshire Council contacts

• Building standards: buildingstandards@eastdunbarton.gov.uk or 0300 123 4510. A duty officer is available Monday to Friday, 9.30am to 1pm. You submit warrants through E-Building Standards.
• Planning: planning@eastdunbarton.gov.uk or the same number, weekdays 9.30am to 1pm. Start with do I need planning permission?

Rough costs

Bungalows and bigger villas can come in above an average, so we'd use these to compare quotes against, not as a budget.

• Glasgow dormer conversion: £33,000 to £56,000 (MyJobQuote, 9 October 2026).
• Bungalow loft conversion, UK: typically £45,000 (MyJobQuote, 21 October 2026).

Guide figures, not quotes. The second is a UK figure with no floor size given, so it isn't directly comparable. We found no figure specific to Bearsden.

Council-wide, 82% of East Dunbartonshire's houses have three or more bedrooms and only 24% of them date from before 1945, from the Scottish House Condition Survey tables (2022 to 2024). So a lot of owners aren't short of bedrooms as such. They want a study, a bathroom, or a bedroom that isn't next to the kids. Knowing that helps a firm suggest the right thing.

Areas we cover

All of the G61 postcode district: Old Bearsden, Westerton, Castlehill and Courthill, Baljaffray, Killermont, Kilmardinny, West Chapelton and Hillfoot. For the neighbouring town, see our Milngavie page. It's the same council with different houses. If you live just over the line in the city, the council changes, so check before you ring anyone.

Rules, dates and prices on this page were last checked on 30 October 2026.