I would get the Agent to take another photo of your Mums bungalow, maybe from the other side so that only a peek of the garage is showing, and make it your main photo, maybe add one of the conservatory too.
Can you put a table and chairs on the patio at the rear and maybe some pots of flowers? Outdoor areas sell properties as well as the insides and get some photos added online, whilst we still have some Summer left.
Can your agent mention how close you are to Sandringham? Local beaches or areas of interest?
You are fairly close to a main road so not ‘countryside’, so easy to access other amenities.
As ever though, it all comes down to the price and getting interest generated by that first photo. Maybe say ‘offers over’ a bit of a lower figure, there are a lot of bungalows on the market in that area.
How many viewings has your Mum had? Has she asked for honest feedback? Are there any problems that she can easily sort out?
How flexible are you and your agent with viewings? We have viewed a property recently and had a problem with the Agent having time to show us ( and others) around it. I’m still trying to get a second viewing, they say they are short staffed and it’s a problem.
Anyway that’s my 4 penneth, I hope it sells soon for your Mums sake.