The 30 sqm squeeze: would you buy a 'micro-home'?

An Englishman's home may be his castle, but for an ever growing number of buyers, that may mean a property less than 37 square meters - or the size of a tube carriage. High demand, skyrocketing prices and lifestyle shifts haveled to the rise of the micro-property - butwhat does this mean for buyers today?

The UK property market boasts an increasing number of homes smaller than 37sqm, the minimum studiofloor area under national standards. Almost 8,000 new micro-homes were built in 2016, the highest number on record, according to Which? analysis ofLand Registry data.

But as developers rush to use more flexible planning laws and carve up office blocks into homes, prospective buyers should be cautious: our research suggestsmicro-homes don't necessarily grow in value like their larger counterparts, while some mortgage lenders won't lend on them at all.

In this special investigation, we explore:

How common are micro-homes?

A 'micro-property' has no strict definition, but typically, the term refers to properties with a floor area below 37sqm - which is the minimum size for a studio underthe government's national Technical Housing Standards.

However, these standards aren't legally binding. Where there are housing shortages, developers can apply to local authorities for permission to build smaller homes and councils cannot reject properties on grounds of size alone.

In2013 the Government introduced so-called u201cPermitted Development Rightsu201d (PDR) which allowed builders to convert offices into residential homes without submitting planning applications.

Since then, the number of new micro-properties has rocketed:

Developers have been purchasing disused office spaces, like this one inCroydon, and splitting them into many small studio and one-bedroom flats:

Butthis trend isn't confined to the London suburbs.

Our researchshowed high numbers of micro-properties are being built in urban areas like Leicester, Liverpool, Cambridge and Bristol:

• Deciding where to buy? Read our guide on finding a place to live

The term'micro-property' covers a broad spectrum of homes, including poorly thought-out flat conversions with toilets in the kitchen or showers in the living room. But many of the new properties produced under Permitted Development Rights use space in an intelligent way, according to developers who spoke to Which?.

Gwyn Roberts, of housing charity BRE, says sizeis less important than innovative and practical design: 'Small homes that are not well-located, have poor indoor environment and are generally designed and constructed poorly would not reach [our standards].'

“[However], many micro-flats are well located, have communal space inside and out and are well designed to have property ventilation, sound insulation and more.”

Martin Skinner, chief executive of Inspired Homes, suggests younger buyers in particular tend to have lifestyles that suit smaller apartments, citing the 'growth of the sharing economy and more possessions like music and film collections stored in the Cloud.' He says that many of their PDR properties have opted for 'flexible furniture solutions' - including desks that transform into dining tables.

• You've found your dream home - now what? Read our guide on making an offer on a house or flat.

Do micro-properties grow in value?

It's not hard to understand the attraction for some buyers, especially as rising prices in some regions price many people out of the market.

Often, micro-properties offer a cheaper alternative to regular houses. In 2016, properties in London smaller than 37 sqmcost just £279,000, according to Land Registry data. Though not exactly cheap, it's less thanhalf the average price of a London home sold in the same period (£580,000).

While micro-homes are acheaper way of getting onto the housing ladder, it's important toconsider whether your investment will grow in value over time.

As part of our investigation, we combined information on property sizes from the Department for Energy with house price data from HM Land Registry, covering nearly 3m properties. We then compared the averageprice of properties sold in 2016 with those sold between 2013 and 2015 to measure the price growth of different-sized homes.

Our analysis showed properties with floorspace of between 50 and 120 sqmhad the best price growth in the period.

However, homes smaller than the national minimum space standards did not perform as well; price growth for properties smaller than 37 sqm was 6.9%, compared with 8.7% for homes larger. This is despite almost two-thirds of these smaller properties being located inLondon and the South East, which have seen massive rises in house prices in recent years.

That trend continues for even tinier homes: properties smaller than 30 sqm grew just 5.4% in value between 2013-15 and 2016.

In London, micro-homes did slightly better: properties smaller than 37 sqmgrew 11.8% between 2013-15 and 2016. However, this was still much less than the 14.5% growth for all other properties in the capital.

• Buying your first home? Read ourguideon how to save for your first mortgage deposit

How big is 37 sqm?

We Brits have some of the smallest homes in Europe, at an average of 76 sqm- that's a slice larger than a squash court (62.4 sqm). By comparison, the average size of a property in Denmark is 137 sqm, according to research published in 2014 by Find Me A Floor.

National space standards suggestthat a one-person dwelling can't be smaller than 37 sqm. That's about the same internal space as a tube carriage, anda fair bit larger than theaverage Travelodge room, which is 28 sqm.

However, we've found many newly converted office developments with floor areas of 16 sqm. For reference, that's smaller than the size of a sumo wrestling ring.

We found one studio in Brent that was just 8sqm-more than 3.5 sqmsmaller than the average UK parking space (11.5 sqm) and only 1 sqm larger than a prison cell. A three-bedroom house was converted into six studio flats, but in 2015 Brent council since ordered the development to be turned back into a house.

Who's buying micro-properties?

Micro-homes are cheaper, usually closer to city centres and often too cramped for families with children.

For those reasons, it's not surprising that they're mainly bought by first-time buyers, according to Inspired Homes. CE Martin Skinner says 'these buyers are typically single professionals in their early thirties or young couples in their twenties combining salaries to purchase together. We also get a lot of siblings who team up to purchase the two-beds'.

However, he adds that it's investors who get the first dibs, with manyreserving early to benefit from capital growth.

In fact, plenty of micro-properties are listed on property portalsas 'Investor Opportunities', offering 'guaranteed' gross rental yields:

Are micro-properties un-mortgageable?

Why don't micro-properties grow in value like regular sized properties? A simple reason might be that many buyers aren't eager to sacrifice space for convenience.

Another reason, however, could be the ability to borrow to buy them. If most buyers cannot easily get a mortgage on the property, this may limit price growth over the long-term.

We asked six major mortgage providers whether they had special criteria on lending for smaller homes.

While HSBC didn't comment, Lloyds Bank, Barclays and Santander all said they didn't have a specific size limit, but that they lend on the basis of a professional valuation. For example, Barclays said it requires flat conversions to have been developed with 'reasonably sized rooms', but said that this is 'down to the valuer's professional opinion.'

However, Nationwide and RBS wouldn't lend on properties with floor areas smaller than 30 sqm. RBS added that smaller properties run the risk of 'restricted demand' and 'volatile pricing on resale'.

David Blake from Which? Mortgage Advisers encouraged buyers todo their research, saying: 'I would suggest anyone thinking about buying a small flat should speak to an independent mortgage adviser to understand their options, but also think about the re-saleability of the property and if demand is likely to remain strong for that type of property in the future.'

• Saving for your first home? Read our guide on how much deposit you'll need for a mortgage

The future of property?

With modern facilities and intelligent space solutions, the micro-homes of today are a far cry from the inner-city studios of old where you could touch the toilet from your bed.

Demand for cheap, inner-city housing, coupled with rising prices, have driven up the supply of this type of property. But itremains to be seen whether they offer viable returns to owners - or prove to be homes that people actually aspireto live in.