Here are some of the prices we have collected on building costs here in the UK.
The prices are based upon user input and personal experience and are guides to the rough pricing rather than exact figures that you will pay.
If you have any of your own data to feedback to us then please do so below.
How much is my house extension, home renovation going to cost me?
This is the question most frequently asked by people looking at getting a house extension. To be honest at the start of a project it is impossible to quote building costs without working drawings and a list of materials, fittings and fixtures.
Building costs for house extensions or home renovations can vary considerably depending on a number of criteria:
- Choice of building materials, fittings and fixtures – bathroom and kitchen tap fittings, tiles, window frames, heating & cooling, lighting
- The extent of client involvement – does the client choose to perform any of the building works such as painting
- Commencement and duration of the building works – does the project extend over the Christmas holiday break or during seasonal busy periods – this will add to any interest cost and/or rental costs if you need to move out
- Seasonal building market conditions – the number of rain affected days – this will add to any interest cost and/or rental costs if you need to move out
- Town planning delays – this can result in additional costs and potentially add months to your building project
- Size and competence of the selected building firm or builder – the bigger the business the more overheads and, by necessity, will pass this cost on to you
- Each builder will factor in a different profit margin
- Soft landscaping
- Varying professional fees – architect, draftsperson, town planner, structural engineer, soil report, building surveyor, etc
- Abnormal ground conditions requiring additional site costs – a sloping block and/or the need to dig deeper to reach solid ground and so concrete pours will vary
- And finally, there is the point of location, location, location. For example, a House Extension in London may cost more than a House Extension in Manchester, only because the cost of building is greater in London than in the North West.
However, considering that planning permission and drawings from start to finish wil usually wind up at about £1,500 give or take some, the prices below will give you the averag costs for a house extension. The rest is up to you and your preferences in the refurbishment of the interior.
Loft Conversion Prices
As mentioned above, the bottom line when planning any building project is ‘How much will it cost’. Loft conversion prices vary from region to region within the UK and, of course, no two conversions are likely to be the same.
But, we can use some ballpark figures and rule-of-thumb.
The first, and arguably the most important, is that by building a loft conversion you should immediately add at least the amount you spend onto the value of your house.
And it just keeps on getting better.
Figures released in July 2006 show that a loft conversion which incorporates a bedroom and en-suite bathroom can add up to 20% to the value of your home. These figures show true to date. Click here for more information on raising property value of your home.
In London loft conversion prices usually cost up to £50,000 though throughout the UK the average seems to be around the £20,000 – £35,000 mark.
These costs are when employing a specialist loft conversion company and they can be drastically reduced by doing some of the work yourself. Much of course depends on the type of conversion. For example, a basic storage solution can often be done in just a day or two and there are some specialist loft conversion companies who will, for around £1000-2000, install joists, a new hatch, lighting and a loft ladder in just 24 hours.
But, for a full scale, and well built loft conversion, loft conversion prices are usually somewhere between £19-£50,000.
|General description||Specific description||Average Price||Units||Last Updated|
|Damp proofing||£1371||per item/job||2010-03-13|
|Damp proofing||£72||per m2||2007-02-21|
|Driveway||DIY Repair||£85||per item/job||2008-07-25|
|Extension||Double storey||£44188||per item/job||2010-03-02|
|Extension||Double storey||£1155||per m2||2010-02-26|
|Extension||Planning Costs||£1856||per item/job||2008-08-14|
|Extension||Single storey||£20447||per item/job||2010-03-25|
|Extension||Single storey||£979||per m2||2009-12-27|
|External render||Pebble Dash||£2271||per house||2010-01-11|
|Fireplace||Labour only||£80||per item/job||2008-08-08|
|Garage||Electric Gates||£450||per item/job||2008-06-17|
|Garage conversion||£8791||per item/job||2010-03-10|
|Garage conversion||DIY||£4500||per item/job||2010-02-26|
|Glazier||Minimum charge||£97||per job||2010-02-27|
|Home network||£1682||per job||2009-10-17|
|House building||All materials||£76402||per house||2008-12-16|
|House building||Fees/Hire||£1799||per house||2005-02-21|
|House building||Labour||£2847||per house||2009-03-09|
|House building||Total Cost of project||£79003||per house||2009-10-08|
|House building||Total Cost of project||£115000||per item/job||2009-08-09|
|House building||Total Cost of project||£895||per m2||2007-10-19|
|House building||Total Fees/hiring costs||£17540||per house||2005-02-11|
|House building||Total Labour||£48915||per house||2007-10-19|
|House renovating||Whole Project||£20328||per house||2010-03-13|
|Joiner||Call out fee||£28||per item/job||2006-03-11|
|Joiner||fireside shelving unit||£1000||per item/job||2006-04-25|
|Joiner||Minimum charge||£35||per item/job||2006-03-11|
|Joiner||Minimum charge||£35||per job||2005-03-10|
|Loft conversion||Plans||£1250||per item/job||2007-11-13|
|Loft conversion||Self-build||£14000||per item/job||2010-02-26|
|Loft conversion||Self-build||£307||per m2||2007-10-01|
|Loft conversion||Staircase||£2545||per item/job||2010-03-20|
|Loft conversion||Whole Project||£20319||per item/job||2010-03-09|
|Loft conversion||Whole Project||£605||per m2||2007-11-10|
|Loft conversion||Windows||£8887||per item/job||2009-05-05|
|Planning permission||Extension||£661||per item/job||2009-07-07|
|Planning permission||Garage||£167||per item/job||2006-12-17|
|Plastering||Ceiling Drylined + Skimmed||£434||per item/job||2010-03-15|
|Plastering||Ceiling Drylined + Skimmed||£17||per m2||2009-09-11|
|Plastering||Ceiling Skimmed||£355||per item/job||2010-03-15|
|Plastering||Ceiling Skimmed||£127||per m2||2010-02-23|
|Plastering||Complex||£7000||per per house||2009-01-14|
|Plastering||Room Skimmed||£385||per room||2010-03-22|
|Plastering||Venetian Polished||£2400||per item/job||2008-09-09|
|Plastering||Wall Drylined||£500||per item/job||2007-11-17|
|Plastering||Wall Drylined||£12||per m2||2007-11-09|
|Plastering||Wall Drylined + Skimmed||£769||per item/job||2010-01-16|
|Plastering||Wall Drylined + Skimmed||£141||per m2||2009-08-21|
|Plastering||Wall Skimmed||£536||per item/job||2010-03-15|
|Plastering||Wall Skimmed||£125||per m2||2010-03-13|
|Plastering||Wall Wet Rendered||£1530||per item/job||2010-03-25|
|Plastering||Wall Wet Rendered||£20||per m2||2010-03-20|
|Roof||DIY Repair||£474||per item/job||2010-03-04|
|Roof||Fascia boards||£800||per item/job||2007-11-14|
|Roof||Fascia boards||£40||per m||2008-06-02|
|Roof||Minimum charge||£49||per job||2009-01-17|
|Swimming pool||Whole Project||£22000||per item/job||2008-05-18|
|Tiling||Wall + Floor||£791||per item/job||2010-03-09|
|Tool hire||£80||per 1 week||2010-03-03|
|Tool hire||Angle Grinder||£26||per 1 week||2007-01-15|
|Tool hire||Carpet Cleaner||£96||per 1 week||2008-03-20|
|Tool hire||Concrete Mixer||£27||per 1 week||2007-01-15|
|Tool hire||Concrete Mixer||£18||per Weekend||2007-01-15|
|Tool hire||Demolition||£72||per 1 week||2007-01-15|
|Tool hire||Masonry Cutters||£46||per 1 week||2008-10-16|
|Tool hire||Power Tools||£30||per 1 week||2007-01-15|
|Tool hire||Scaffolding||£30||per m2||2010-03-03|
|Tool hire||Vibrating Poker||£77||per 1 week||2007-01-15|
|Tool hire||Woodwork||£29||per 1 week||2007-01-15|
If you have any questions regarding your building or refurbishment project feel free to leave it in the comment section below.