Awkward moment couple renovating their dream home in prime Solihull location realise they've made enormous £10,000 mistake

This is the awkward moment a couple realised their grand plans for an enormous extension actually protruded into their neighbour's garden - and work had already begun. Kazal Ahmed and his wife Eleena featured on last night's episode of George Clarke's Building Home on Channel 4, showcasing their journey to renovate a £850,000 property in Solihull, near Birmingham.

After growing up in the West Midlands, the couple had spent three decades living and travelling abroad for work - most recently spending 14 years in Dubai. They decided to return to Solihull to be close to Kazal's extended family once again, and hoped to build their dream home, including space to host 70 to 80 people for dinner parties.

The couple had grand plans to transform their 'miserable' 1970s £850,000 home, described by host George Clarke as an 'ugly duckling' and the 'worst house on the street'. Kazal and Eleena hoped to double their current floor space - much of which would be taken up by an enormous 9 x 7-metre kitchen extension.

But two months into the building process, they faced a 'huge setback' as they realised the huge room was actually set to encroach on their neighbour's land in a very costly mistake. The couple had already ordered the steel frames needed for the build when builders told them that the foundational slabs for the extension would not fit within their own boundaries.

This is the awkward moment Kazal Ahmed and his wife Eleena found out that their plans would invade their neighbour's property - in a very costly mistake. This stopped work on the extension entirely while Kazal and Eleena figured out what to do - as they realised they couldn't go ahead with their current plans.

After being informed that the mistake would likely cost thousands, Eleena said: 'So in essence what you're telling me is that it's going to cost more money, it's going to cost more time and it's going to cost us the vision of our home. That's really disappointing.'.

Speaking to the camera, she added: 'We were adamant at the beginning we weren't going to do any third-party wall agreements. It's expensive, it's burdensome, it's trying to keep neighbourly relations. 'It's no fault of our neighbours that this has been drawn up - so why should they accommodate us? It's us that want the build.'.

With the plans needing to be redrawn and the kitchen reconfigured, it made for £10,000 in additional building costs - while the couple cut the steel frames themselves to save the £7,000 needed to buy new ones. The added costs and their 'no expenses' spared approach - which included a high spec designer kitchen, herringbone wooden floors and a £2,500 dining table - eventually saw the couple double their initial budget.

Speaking to George at the end of the show, they revealed they'd spent £400,000 on their renovations after hoping to only splash £200,000 - and, at most, £260,000. But the renovations of the property - initially valued at £850,000 - were spectacular, and took it from the 'worst house on the street' to one that received many a compliment from passersby.

The couple had grand plans to transform their 'miserable' 1970s £850,000 home, described by host George Clarke as an 'ugly duckling' and the 'worst house on the street'. Pictured during renovations. The cornerstone of the transformation was set to be a luxurious kitchen extension (pictured in progress).

Prior to renovations, the dilapidated home had been falling apart and in desperate need of a coat of paint. The end of the show saw a spectacular transformation, with a huge and modern home (pictured after). The hallway before had been cramped, with little space to even move.

Afterwards, it was light and open-plan with new herringbone flooring and a transformed staircase. The new entertaining kitchen and dining space was a tremendous success - with huge windows overlooking the garden. Again, the kitchen previously was seriously outdated and in need of some love and care.

The home had been 'very tired' with flaky paintwork and mismatched extensions and in serious need of attention when work first began. The interior meanwhile was a shambles, with outdated furnishings and broken appliances and damage in every room. After 14 months of hard work, all with the couple living on site, the property was unrecognisable by the end of the show.

Kazal and Eleena had transformed the 'ugly duckling' home into a gleaming yet elegant property with an impressive extension and immaculate finish with new rendering and painted windows. At the centre of the new build was an open-plan kitchen and dining space for entertaining and family life, complete with sliding doors looking out onto a spacious garden.

Upstairs, the couple had added a master bedroom with en-suite and snazzy dressing room. Host George Clarke was completely wowed by the transformation - and even said the kitchen was 'one of the best' he'd ever been in. In addition, they'd built a smaller 'spice kitchen' where Eleena could do the majority of the cooking, keeping a tidy space in the main kitchen for entertaining purposes.