Thinking of selling your investment property in 2026?

First impressions matter, and many homeowners often stop noticing minor details, which can turn off some buyers immediately.

Knowing what these red flags are, and how to fix them, can make a significant difference to how quickly and successfully your property sells. 

George Abouzolof of Clifton Private Finance reveals eight common red flags that can reduce buyer interest, along with practical steps sellers can take to avoid them.

1. Unpleasant smells

“Odours are often the first thing a buyer becomes aware of when entering a home, and any unpleasant smells can instantly create a poor first impression. Persistent smells linked to pets, smoking, damp or general lack of cleanliness can be especially off-putting for those viewing the property.

“If viewings are taking place in person, carrying out a deep clean can help eliminate smells at their source rather than masking them. Light use of candles, room sprays or air fresheners can be effective once the cause has been addressed. Simply opening windows to allow fresh air to circulate can also make a noticeable difference.

“A property that smells clean and fresh feels far more inviting from the outset and helps create a positive atmosphere throughout the viewing.”

2. Poor kerb appeal

“Kerb appeal refers to how appealing a property looks from the outside, and it plays a key role in shaping a buyer’s first impression. Untidy gardens, full bins or dirty windows can make a home appear uncared for before anyone steps inside.

“When getting a property ready for photos or viewings, it is important to pay attention to the exterior as well as the interior. Clear away leaves and rubbish, trim back plants and weeds, and ensure windows and the front door are clean. If possible, adding a few attractive plants can instantly improve the overall look and help the property stand out to buyers.”

3. Not enough photos

“For many buyers, their first interaction with a property happens online, often while scrolling on their phone. This makes clear, well lit and high quality images essential. Photos should showcase the property effectively, highlight key features and show tidy, uncluttered rooms.

“Dark or low quality images can deter potential buyers before they even consider booking a viewing, reducing interest in the property from the outset.”

4. Too much clutter

“Excess belongings around the home can affect how buyers see the space, both in photographs and during in person viewings. Clutter makes it more difficult for buyers to imagine themselves living there and can draw attention away from the property itself.

“When selling a home, a minimal approach works best. Personal items, ornaments and family photos should be kept to a minimum. Overfilled rooms can feel smaller, making it harder for buyers to appreciate the property’s full potential.”

5. Sellers conducting the viewing

“Although it may seem natural for homeowners to show buyers around, this can sometimes work against you. Buyers may feel uncomfortable or pressured, leading them to rush through the viewing and engage less with the property.

“In most cases, it’s preferable to leave viewings to estate agents. They are trained to present properties effectively and know how to highlight key features in a relaxed and professional way.”

6. Uncomfortable temperature

“The temperature inside a property during a viewing can strongly influence how buyers feel. A home that is too warm or too cold can quickly become distracting and create doubts.

“Maintaining a comfortable, neutral temperature helps buyers feel at ease and avoids unnecessary concerns about the reliability of the heating system.”

7. Outdated or inefficient boiler

“Buyers want confidence that the home’s heating system will be reliable, particularly during the colder months. An ageing or inefficient boiler can raise questions about future repair costs and potential disruption.

“If a boiler is approaching the end of its lifespan, replacing it with a newer, more efficient model may help reassure buyers and improve the property’s overall appeal.”

8. Damp and mould issues

“Damp and mould are some of the most concerning issues for potential buyers. Visible signs can immediately signal larger underlying problems and put buyers on edge, making a bad first impression.

“Any damp or mould in the property should be professionally assessed and resolved before marketing the property. Failing to address it is likely to reduce interest and could also cause complications when the survey is carried out.”