HBXL Professional Services helps you impress customers and charge what you’re worth. It can really improve your profit too. And cut down on office admin time! Who can put a price on that? It’s an investment that pays for itself many times over.

These prices are intended to be guide; each job will be priced on a job by job basis. Call us if you have any questions on 0117 916 7894.

Turnaround: Small jobs 3-4 days, larger jobs max 7-10 days. We’ll confirm before we start.

All prices are quoted excluding VAT.

Estimate Service Prices
Planning Drawings Only
Building Regs Drawings and/or Spec Document
Up to 25m2 £199 £249
Up to 50m2 £399 £499
Up to 75m2 £499 £599
Up to 100m2 £599 £699
Up to 125m2 £699 £899
Up to 150m2 £799 £1099
Over 150m2
New Build
Up to 100m2 £249 £299
Up to 200m2 £399 £499
Up to 300m2 £499 £599
Up to 400m2 £599 £699
Up to 500m2 £699 £899
Up to 600m2 £799 £1099
Over 600m2 POA POA
Loft Conversions
Up to 25m2 £199 £249
Up to 50m2 £399 £499
Up to 75m2 £499 £599
Over 75m2 POA POA
(New Build)
Single £99 £119
Double £119 £149
Other Project Types
Barn Conversions POA POA
Renovations POA POA
New Build Mews/Apartments POA POA
Specialist & Bespoke Projects POA POA

Calculating Areas

Prices are based on the external area of your proposed development. The area is calculated by adding together the external areas of each floor.

  • For NEW BUILDS the area includes each floor of the main house and integral garages. Loft areas should also be included by measuring to the outside of loft walls. Out-buildings and detached garages will be priced separately – see their associated fee bands.
  • For EXTENSIONS the price includes associated works, i.e. immediately adjacent structural openings

Additional charges

  • Please note that your estimate files will be emailed to you at zero extra cost in Microsoft Word & Excel formats ready for you to print.
  • Should you require hard copies of your estimate files posted to you this costs an extra £14.99 + VAT on top of the standard estimate fees above.

Just for info, our default specifications meet the 2016 versions of the Approved Documents for Conservation of Fuel and Power (Part L).  Projects in England and Wales that have not submitted building notices prior to 6th April 2014, now have to comply with these. Our specifications meet these changes by default unless specified otherwise on your documentation. Please note that your estimate will only be started on receipt of a completed order form. Any delay could setback the completion date of the estimate.

All prices are quoted excluding VAT.

Plans Service Prices – Types of Work
Size of Extension
Up to 25m2 Up to 50m2
Scheme Drawing
£99 £149
Planning Permission/Permitted Development Drawing
£299 £399
Building Regulation Only Drawing POA POA
Planning and Building Regulation Drawings £599 £749
Estimate of Building Costs – Additional Fee £74 £149
Planning Portal Standard Submission Fees £172 (VAT Exempt) £172 (VAT Exempt)
Block Plan/Site Plan Fee (Streetwise) £27 £27
Planning Submission Administration Charge £29.99 £29.99


Health & Safety Pack Prices
Health & Safety Pack ordered at the time of your estimate £69
Health & Safety Pack ordered at a later date
Standalone Health & Safety Pack


Building Contracts Service Prices
Contracts ordered at the time of your estimate £35
Contracts ordered at a later date