What is a single storey roof extension?

More single storey extension roof ideas

Roof shape Material
☐ Lean-to roof Sloped roof, connected to the properties longest wall Glass / Tiled / Both
☐ T-Shaped roof Lean-to + Victorian, Gable or Edwardian roof styles Glass / Tiled / Both
☐ P-Shaped roof Lean-to + Victorian roof styles Glass / Tiled / Both

What is the cheapest roof for an extension?

Many homeowners, when building single-storey extensions, tend to opt for a flat roof because they are cheaper and quicker to create.

What is the best roof for an extension?

What’s the best roof type for my home extension?

  • A flexible, simple and affordable solution, flat roofs are very popular for extensions of any shape or size.
  • Inverted flat roofs have a longer lifespan than conventional flat roofs as they incorporate a waterproof layer with paving or other material over the top.

How much does an extension roof cost UK?


Type of extension Cost + VAT (Range low – high) Average cost
Flat roof extension cost £30,000 – £75,000 £52,500
Flat roof extension cost per m2 £1,200 – £2,500 £1,850
Pitched roof extension cost £40,000 – £80,000 £60,000
Cost to convert a flat roof to a pitched roof £3,000 – £4,500 £3,750

What is the average cost of a single story extension?

Single and Double Storey Extension Costs On average, a 30 square metre single storey extension built on a budget costs between £30,000 to £48,000. If your finances can stretch a bit more, a mid-range extension of this size usually costs between £51,000 and £60,000. These prices exclude fitting costs.

How long does it take to build a single storey extension?

around 3 months
For a single storey extension, it will normally take around 3 months for the work to be completed.

How much does a roof extension cost?

Flat Roof Extension Cost: A Breakdown On average, UK residents will be charged £1,750 per m2 for their flat roof, with that price fluctuating between £1,000 and £2,500 based on the above factors.

What’s cheaper pitched or flat roof?

Lower Upfront Cost — A flat roof is less expensive to install on a new building than a pitched roof. This is because it requires fewer materials, and is structurally more simple. That means flat roofs can also be installed a bit more quickly, which is part of what makes them attractive for commercial buildings.

What is better pitched or flat roof?

The longevity of a pitched roof is usually superior to that of a flat roof, leading many homeowners to choose it for their properties. The materials used are generally more weather resistant and durable, though with more robust materials being introduced into the flat roofing market, this gap is starting to close.

Are flat roof extensions OK?

Flat roofs have gained an unenviable reputation over the years for developing problems. Unless carefully designed and constructed they are notoriously prone to leakage and heat loss, along with defects like sagging decks, ponding water and prolific plant growth.

Is a single storey extension worth it?

If a home extension gives you the right amount of space in the right location and allows you to live your life as you choose, then we think it’s definitely ‘worth it’. Though the financial investment can be significant, the return on the investment is often greater still. “I love, love love, my house.”