How Much Should I Pay for an Architect? A Complete Cost Breakdown for 2025
If you're planning a home extension, loft conversion, or even a full renovation, you're probably wondering: how much should I pay for an architect? Hiring an architect is a smart move—they help maximize space, ensure planning approval, and bring your dream home to life. But architectural fees can be confusing, and costs vary widely. Let’s break it down and help you budget effectively.
Understanding Architect Fees: What You Need to Know
Why Are Architect Fees Not Standardized?
Architect fees are not fixed because every project is unique. Costs depend on several factors, including:
Project complexity (simple vs. intricate designs)
Location (London and major cities are pricier)
Experience of the architect (prestigious firms charge more)
Extent of work required (planning only vs. full project management)
How Do Architects Calculate Their Fees?
Architects use different pricing models:
Percentage of Construction Cost – Typically 5-10%, ideal for larger projects.
Fixed Fee (Lump Sum) – A set price for well-defined projects, offering cost certainty.
Hourly Rate – Typically £50-£90/hour, best for feasibility studies or small jobs.
Our blog posts aim to go into more depth on 'How much should I expect to pay for an architect?' provides more information on fees, why not give it a read?
Different Stages of Architect Fees to Consider
Feasibility Assessments
Before any design work, an architect might assess whether your project is realistic and viable. This step can save thousands in wasted costs later.
Planning Application Fees
If your project requires planning permission, an architect will handle the application and liaise with the council. Fees range from £950 to £1,450, depending on project complexity.
Building Regulations Costs
Even if you don’t need planning permission, you must comply with UK building regulations. Architects prepare detailed technical drawings for approval.
Tender and Construction Fees
Once designs are approved, you may need your architect to help find builders and prepare tender documents.
Project Management Fees
Want your architect involved throughout the construction process? Expect an additional 5-7% of build costs.
Inspection & Contract Administration Fees
Some architects offer construction oversight to ensure builders follow the design correctly.
How Much Should I Pay for an Architect in the UK?
Architect Fees for Small Extensions
Do I need an architect for a small extension? For simple projects, an architectural technologist might be a cheaper alternative. But if you want to maximize space and get creative design ideas, an architect is worth considering.
At Zidouri Architecture, our typical fees are:
Single-storey extension: £950 including VAT
Double-storey extension: £1,450 including VAT
Loft conversion with dormer: £950 including VAT
Architect Fees for Loft Conversions
Loft conversions often require structural calculations and planning approval. Our loft conversion architect fees start at £950, covering full design and council approvals.
Architect Costs for Renovations
A full home renovation involves redesigning layouts, integrating modern features, and ensuring compliance. Costs can range from £2,500 to £10,000, depending on scope.
Architect Fees for New Builds
Building a new home? Expect to pay 8-12% of construction costs for architectural services. If your home costs £250,000 to build, fees will be around £20,000 to £30,000.
Architect Fees for Multi-Unit Developments (Flats & Apartments)
For developers, multi-unit projects typically attract lower percentage fees (3-8%), but total costs are higher.
How Much Does It Cost for an Architect to Draw Plans?
Do You Need an Architect for Drawings?
If you need basic floor plans for planning applications, an architect is recommended. However, for very small projects, an architectural technologist may be a more affordable option.
Cost Breakdown for Architectural Plans
Service | Estimated Cost |
Concept Design | £500 – £2,500 |
Detailed Design & Technical Drawings | £950 – £3,500 |
Planning Submission Costs | £950 – £1,450 |
Construction Drawings & Documentation | £1,500 – £5,000 |
How Do I Estimate Architect Fees?
Architect Cost Calculator: What to Expect
A quick way to estimate architect fees:
Multiply your total construction budget by 5-10% for full services.
For drawings only, expect £950 - £3,500.
For hourly rates, budget £55-£90 per hour.
Factors That Affect Architect Fees
Project Size & Complexity
Larger and more intricate designs cost more.
Location & Regional Differences
Nottinghamshire architects typically charge lower fees than those in London.
Level of Service Required
Full project management adds extra costs.
Architect’s Experience & Reputation
Prestigious, award-winning architects charge more.
Hourly vs. Fixed Fees vs. Percentage-Based Pricing
Choose what works best for your budget and project type.
Hidden Costs of Hiring an Architect
Unexpected Planning & Regulatory Fees
Apart from architect fees, be prepared for:
Planning permission costs (approx. £230 in the UK)
Structural engineer fees (£500-£2,000 for calculations)
Building control fees (£500+)
Specialist consultant fees (e.g., flood risk assessments)
Do I Even Need an Architect?
When You Might Not Need an Architect
Simple renovations (e.g., knocking down a wall)
Small extensions within permitted development rules
Can an Architectural Technologist or Architectural Designer Be a Cheaper Alternative?
Yes! If you need basic drawings, an architectural technologist may suffice.
Can a Design & Build Company Replace an Architect?
Some design & build firms offer architectural services in-house, which can be cost-effective.
Benefits of Hiring an Architect vs. Going Without One
An architect brings design expertise, planning approval assistance, and construction oversight, reducing costly mistakes.
FAQs: How Much Should I Pay for an Architect?
How much does it cost for an architect to draw plans?
Our single-storey extension plans start at £950, including VAT.
Whilst we have our own fees, why not check if these are inline with industry standards on sites such as Checkatrade
How do I estimate architect fees?
Multiply your construction budget by 5-10% or use our fixed fees.
Do I need an architect for a small extension?
Not always. A technologist or builder might be enough for straightforward projects.
Who are the best architects in Nottinghamshire UK?
At Zidouri Architecture, we have a strong portfolio of successful projects in Nottinghamshire.
Final Thoughts – Is Hiring an Architect Worth It?
Hiring an architect is an investment in quality, space, and planning success. Whether you’re adding a small extension or building a new home, knowing how much should I pay for an architect helps you budget smartly and avoid hidden costs.
At Zidouri Architecture, we’ve been helping homeowners in Nottinghamshire since 2019, delivering beautiful designs at competitive prices. If you're ready to start your project, get in touch today!
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