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What architects, technologists, engineers and surveyors actually charge in 2026 — the full trade-by-trade reference.
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Top tips
Hiring a architectural services, without the regret.
Four moves that separate a smooth job from a nightmare.
Multiple revision charges
Get fee structure clarified. Major changes typically extra.
Scope creep
Project grows. Tight scope at start.
Pre-application skipped
Worth £50-£250 to avoid refusal.
Quality vs cost
Cheap drawings often non-compliant. Pay for quality.
Costs & timeline
Know what it costs. Know when it ends.
Indicative UK ranges and what affects price.
Cost range
By job type
Inc. VAT · 2026
Source: NMT quotes
Source: NMT quotes
Architectural drawings (extension)Standard project
£1.5k–£6.5k
Loft conversion drawingsIncluding structural
£2k–£5k
New-build full designSelf-build comprehensive
£5k–£30k
Planning permission applicationPlus £206 fee
£800–£3.5k
Building Regs drawingsTechnical compliance
£800–£3.5k
Listed building consultancySpecialist heritage
£2.5k–£15k
!
Quote spread is typically ± 18% — always get 3 quotes.
At a glance
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Architectural Services explained
UK architectural service prices vary by scope and complexity. This reference helps spot fair quotes. All prices include VAT for 2026.
What Does the Work Involve?
Pricing reference — see individual guides. Prices assume RIBA/CIAT-qualified specialist, quality service, and proper insurance.
Typical Costs
| Item | Low (£) | High (£) | Notes |
|---|---|---|---|
| Architectural drawings (extension) | 1,500 | 6,500 | Standard project |
| Loft conversion drawings | 2,000 | 5,000 | Including structural |
| New-build full design | 5,000 | 30,000+ | Self-build comprehensive |
| Planning permission application | 800 | 3,500 | Plus £206 fee |
| Building Regs drawings | 800 | 3,500 | Technical compliance |
| Listed building consultancy | 2,500 | 15,000 | Specialist heritage |
| Interior architectural design | 2,500 | 15,000+ | Per project |
| Self-build architect (RIBA stages 0-7) | 10,000 | 50,000+ | Comprehensive |
| Structural engineering | 500 | 10,000+ | Calculations |
| 3D visualisation | 500 | 15,000 | Render to VR |
| Pre-application advice (council) | 50 | 250 | Planning officer |
| Lawful Development Certificate | 103 | 103 | Permitted dev confirm |
How Long Does It Take?
Drawings: 2-4 weeks. Planning: 8 weeks. Building Regs: 5 weeks. Self-build: 18-24 months total.
DIY or Professional?
RIBA architect for premium. CIAT-technician for standard. Specialist consultants for complex.
Choosing the Right Tradesperson
RIBA/CIAT qualified. ARB registered. Insurance-backed. Portfolio relevant to project.
UK Regulations
Planning permission. Building Regs notification. Listed buildings consent. Architects Registration Board.
Common Problems With Quotes
- Multiple revision charges: Get fee structure clarified. Major changes typically extra.
- Scope creep: Project grows. Tight scope at start.
- Pre-application skipped: Worth £50-£250 to avoid refusal.
- Quality vs cost: Cheap drawings often non-compliant. Pay for quality.
Frequently Asked Questions
How much for typical extension?
Architect + planning + Building Regs: £3,000-£10,000. Plus statutory fees. 5-10% of build cost.
RIBA architect or technician?
RIBA: full qualification, comprehensive. CIAT: technical drawings, cheaper. Match to project.
What payment structure?
Staged: deposit (25%), planning (25%), Building Regs (25%), final (25%). Sometimes RIBA stages.
Cost as % of build?
Standard extension: 5-12%. Self-build: 8-15%. Premium architectural: 15-20%.
What warranty?
Professional indemnity insurance covers errors. £2-5m typically. Verify before signing.
Insurance for build?
Self-build insurance during construction. Standard buildings insurance from completion.
This guide was written with AI assistance and is intended for general information only. Prices are estimates based on UK averages and may vary by region. Always get at least three quotes and consult a qualified professional before starting any work.
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