Beginners Guide
Build Cost Guide
Mortagage Cost Calculator
Stage Payment Mortgages For Self-Builders
BEGINNERS COST CALCULATOR
Step 1 - Average Build Cost
Build Route
(help)
Please select
Build Route B (Subcontractors)
Build Route C (Builder & Subbies)
Build Route D (Main Contractor)
Number of Storeys and House Size
(help)
Please select
Single Story
Two Story
Gross internal floor area (including integral garages and excluding basements, roof space, detatched garages and outbuildings)
(help)
Click
here
to convert from square feet to m
2
m
2
Build Quality
(help)
Please select
Standard
Good
Excellent
Region
(help)
Please select
Greater London
South East
NW, SW, East, & Scotland
Mids, Yorks, NE, & Wales
Step 2 - Adjustments
Additional accommodation area in roof
(help)
m
2
Area of basement required
(help)
m
2
Alternative Wall Facing Materials
(help)
Render on blockwork
Timber cladding
Handmade weathertiling
Clay plain weathertiling
Rubble walling/flint
Reconstituted stone
Natural stone
Ashlar/bathstone
Roofing Materials
(help)
Hand made clay plain tiles
Clay plain tiles
New Welsh slates
Second hand slates
Reed thatch
Do you require Raft or Pile foundations?
(help)
Yes
No
Sloping Sites
(help)
If your site has a slope, enter the slope here
degrees
Bespoke Joinery
(help)
If you have a quotation for bespoke doors and windows, enter it here £
Bespoke Kitchen
(help)
If you have a quotation for a bespoke kitchen, enter it here £
High Ceilings
(help)
If your ceiling heights are above 2.4m, enter the height in metres here
m
Detatched garages and outbuildings
(help)
Typical single garage 17m
2
, double 35m
2
, triple 56m
2
Enter the gross floor area of detatched garages and outbuildings here
m
2
Step 3 - Additional Costs
Land Cost
(help)
Varies depending on size and location but normally ranges between 33-50% of budget. Consult the
plotfinder.net
directory for your area to get an idea of local prices.
Land cost
£
Legal Fees
(help)
Conveyancing fees, Land Registry fees and local searches will typically cost in the region of £5-600. Speak to your solicitor.
Legal fees
£
Site Survey
(help)
By surveyor or architect. Typical cost £350–400. Speak to your designer or a surveyor.
Site survey cost
£
Finance Costs
(help)
See the
finance
section.
Finance costs
£
Design Fees
(help)
Architect’s fees can range from 7–15% of the total build cost for a full service involving design, tender and contract administration. Plan drawing services only are also available from architects and other professionals such as architectural technologists, surveyors, engineers and also non qualified house designers. For planning drawings expect to pay from £2,500–3,500 plus VAT plus a similar figure for Building Regulation drawings. Package suppliers, including timber frame manufacturers, usually include design fees within their package price.
Design fees
£
Structural Engineer’s Fees
(help)
Design calculations required for construction details (usually foundations and roof) and as required by Building Regulations. Typical costs are £400–500. Speak to your designer or a surveyor. Contact RICS 0207 222 7000.
Structural Engineer’s fees
£
Planning Application Fees
(help)
Detailed application fee is currently £190. Speak to your local authority planning department.
Planning Application fees
£
Building Regulations Fees
(help)
For a new dwelling of up to 300m
2
the initial plan fee payable on submission is typically £164.50 including VAT. A further fee of £188 plus VAT for inspections is also payable. Fees for renovation and conversion work are higher. Check with your Local Authority for exact cost details. The NHBC are also able to make the statutory inspections for Building Control purposes. Contact NHBC Solo for Self Build (01494 735760) for details.
Building Regulations fees
£
Warranty
(help)
You need structural defects liability insurance. Typical cost £700–1,500. Read
insurances
in the finance section below.
Warranty costs
£
All Risks Self-build Insurance
(help)
You will need public liability, employer’s liability and site risk insurance. £500–800. See insurances in the finance section below.
All risks self-build insurance
£
Services
(help)
Connection of water, gas, electricity, telecom and drainage — typically totalling £3,500–6,000. Costs will depend on distance from the highway and the location of mains services. Contact your local utility suppliers. Off mains drainage will usually add to costs — contact specialist suppliers for a quote.
Services costs
£
Demolition Costs
(help)
In the case of a replacement dwelling, the cost of demolition needs to be taken into account. Typical cost is £6,000–7,000 excluding the value of any items that have salvage value.
Demolition costs
£
External Works
(help)
Typical expenditure on outbuildings and landscaping is around 15% of build costs.
External works
£
Summary
Note - Always press the "Calculate" button after making changes.
Average Build Cost per square metre
£/m
2
Average Build Cost for this dwelling
£
Adjustments
£
Additional Costs
£
Stamp Duty
Stamp duty will be levied on the purchase of any plot over £60,000 and will be collected by your solicitor. The tax is currently levied at 1% for plots valued from £60,001–£250,000, 3% for plots valued from £250,001 to £500,000 and 4% for plots over £500,000.
Stamp Duty
£
Total Project Cost
£