6 Jul, 2026 @ 18:09
2 mins read

Buying off-plan and building your own home is Spain’s most profitable property move, claim leading architects – but beware cowboy builders

BUILDING a home from scratch is currently the most profitable real estate strategy in Spain, according to one architect.

But a trail of broken promises and unfinished homes across the Costa del Sol serves as a warning to expats looking to buy off-plan.

Leading architect Jose Luis Esteban Penelas argues that buying a plot and creating a custom home offers a ‘double appreciation’ that ready-made properties cannot match.

READ MORE: ‘Like living in the wild west’: The Otero scandal that has hurt thousands

Otero’s Oceanic development, overlooking the sea on the Manilva coast, will likely never be completed, leaving husks and shells and even cranes there for years to come.
Credit: The Olive Press

This financial advantage comes from the combined increase in value of both the land – a scarce resource – and the modern, energy-efficient structure you build on it.

By cutting out the commercial developer’s margin, owners can also significantly increase their long-term equity.

Flexibility is one of the major factors in any investment consideration, with self-builders being able to customise the orientation, layout and energy-saving systems to suit their specific lifestyle needs.

READ MORE: Expat property owners on the Costa del Sol face frozen bank accounts as Spanish authorities launch tax compliance crackdown

This freedom does, of course, require a robust financial plan and significant patience with the builders and contractors who tend to work at their own speed.

Surprisingly, land costs typically account for between 30% and 60% of the total budget.

The off-plan process also demands an additional budget for a variety of extra expenses, including architects fees, municipal licenses, a plethora of taxes and the inevitable material cost fluctuations.

Building from the ground up usually takes between one and two years to complete.

READ MORE: No more palming us off!

The Duquesa Valley and Don Amaro developments are now pockmarked by unfinished shells sandwiched between occupied properties. Credit: The Olive Press

Yet, for those with a clear plan in their minds and in the blueprints, the potential rewards remain formidable.

But warnings from history litter the Costa del Sol with the wreckage of dream homes that never materialised and investments lost.

Expats must be wary of handing over massive deposits to promoters without iron-clad independent guarantees.

The 2023 collapse of the Otero Group serves as just one reminder of the risks involved.

Dozens of foreign investors saw their dreams shattered when the firm halted projects across Marbella, Estepona and Manilva.

READ MORE: EXCLUSIVE: ‘Sharp’ and ‘shoddy’ practices in Spain land dozens of foreign off-plan villa buyers millions out of pocket as Costa del Sol developer collapses

Leading architect Jose Luis Esteban Penelas

In some cases, desperate unpaid contractors even stripped unfinished villas of windows and kitchens to recoup their losses.

Another notorious example is the By Nok development scandal in 2022.

The Marbella-based promoter halted luxury projects like the La Boladilla Village Resort, leaving foreign buyers who had forked out huge payments with little recourse.

Then there is the fallout from the historic Ocean View Properties saga.

Nearly 1,000 British investors lost an average of €90,000 each on a project that never even secured planning permission.

While there are plenty of reputable and solid developers on the Costa del Sol, these scandals highlight the vital importance of professional due diligence.

Before spending a single euro, buyers should engage an independent lawyer to verify land ownership and confirm that all mandatory bank guarantees are in place.

It is only by pairing a meticulous technical team with a realistic budget can expats successfully navigate the Spanish construction sector.

Click here to read more Property News from The Olive Press.

Walter Finch, is the Digital Editor of the Olive Press and occasional roaming photographer who started out at the Daily Mail.
Born in London but having lived in six countries, he is well-travelled and worldly. He studied Philosophy at the University of Birmingham and earned his NCTJ diploma in journalism from London's renowned News Associates during the Covid era.
He got his first break working on the Foreign News desk of the Daily Mail's online arm, where he also helped out on the video desk due to previous experience as a camera operator and filmmaker.
He then decided to escape the confines of London and returned to Spain in 2022, having previously lived in Barcelona for many years.

Leave a Reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Previous Story

Spanish Prime Minister Pedro Sanchez to visit the Gibraltar border ahead of historic frontier opening

Next Story

Can homeowners in Spain really be fined €3,000 for air con units sticking out of their building?

Previous Story

Spanish Prime Minister Pedro Sanchez to visit the Gibraltar border ahead of historic frontier opening

Next Story

Can homeowners in Spain really be fined €3,000 for air con units sticking out of their building?

Latest from Lead

Create a free account, or log in.

Gain access to read this article, plus limited free content.

Yes! I would like to receive new content and updates.

Go toTop