Key Takeaway
Everything you need to know about Hampshire Build's most popular fixed-fee package. Includes planning drawings, building regulations, and structural calculations — everything your builder needs.
Pre-Build Package Extension Designer Package £1,950+VAT: Your Complete Guide
Our Pre-Build Package is Hampshire's most popular fixed-fee extension design service. It covers everything your builder needs to price the work accurately and start on site — no hidden extras, no hourly billing. Here's exactly what's included:
What's Included in the Pre-Build Package
1. Professional Measured Survey
- On-site survey of your property by your designer
- Accurate measurements of existing structure
- Site photos and condition notes
- Boundary and garden measurements
2. Planning Drawings
- Existing floor plans and elevations
- Proposed extension plans (all floors)
- Proposed elevations (front, rear, sides)
- Section drawings
- Site location and block plans
3. Planning Application Submission
- Full planning application preparation
- Planning portal upload
- Council liaison and query responses
- Design and access statement if required
4. Building Regulations Drawings
- Full technical drawings for Building Control
- Construction detail drawings
- Insulation and compliance details
- Foundation design details
5. Structural Calculations
- Certified calculations for all structural steelwork
- Foundation load calculations
- Beam and lintel sizing
Who Is the Pre-Build Package For?
- Single-storey rear and side extensions
- Kitchen extensions
- Two-storey extensions
- Loft conversions
- Garage conversions
- Any project where you need a complete, builder-ready drawing package
Real Cost Savings vs Hourly-Rate Designers
Traditional extension designers charge £3,500–£5,000+ for the equivalent drawing package at hourly rates. The Pre-Build Package at £1,950+VAT saves you £1,550–£3,050 while delivering the same professional drawings.
Payment Structure
A £250+VAT deposit secures your appointment. The balance is due on completion of your design consultation. No large upfront payments, no payment before we've started work.
Book your complimentary consultation to discuss whether the Pre-Build Package is right for your Hampshire extension project. No obligation — just clear, expert advice.
