Typical Selfbuild costs
| Plot purchase cost | From ¼ to ½ total budget |
| Site investigations – checking ground conditions | May not be required |
Acquisition costs:
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| Professional measured site survey | Usually required except for simplest sites |
| Site clearance and security costs | May not be required, on only very minor work to make site safe |
| Public liability insurance | Cover yourself in case of accidents before work starts |
| Mortgage funding | Funds for SB mortgage |
| Mortgage valuation and legal fees | Vary with lenders |
| Selling existing property | Sell privately online, or allow 3% of sale price for agents fees |
| Architects fees | Depends on extent of brief. % or hourly rate |
| Building Regs drawing package | |
| Tendering | Several hundred £ |
| Engineer’s fees | Agreed sum or hourly rate |
| Planning fees | From £300 (VAT not charged) |
| Planning consultant / appeal fees | Not normally required, but can be expensive |
| Building Regs LA app fees | Typically around £250+VAT |
| Building Regs inspection fee | Around £300+VAT |
| QS fees | Not usually essential |
| Construction of house (to include all kitchen & bathroom fittings) |
Estimate £ per sq m |
| External works | Driveway or possible new road access |
| Contingency sum | Minimum 5% to 10% of build costs – usually spent |
| Accommodation during build | Mobile home, rental, extra mortgage costs |
| Service connections – water, drainage, electricity, gas | Varies depending on supplier and site – can cost many £’000 pounds |
| Project management | |
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Certification:
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Insurance:
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Only if you DIY manage it yourself, otherwise up to main contractor |
| Removal costs | |
| New home furniture | |
| Agents’ sale fees | |
| Conveyancing sale fees | |
| Conveyancing fees on sale | |
| Mortgage redemption fees |