Architectural Services Prices
We provide a comprehensive fixed fee concept design and planning services for architectural plans and planning drawings across Hertfordshire, London, and nearby areas. Our prices include internal layout reconfiguration, one revision, and presentation meeting to our clients. They are all inclusive with no hidden charges. Discounts are available if your architectural project combine two or more proposals listed below. If your renovation isn’t listed, feel free to reach out for a complimentary estimate.
Please note that planning permission application fees may differ based on your Local Council and the type of renovation.
Our Price Guide
Architectural Service
Price
First visit and consultation
Free
Concept Design
Survey + drawing existing floor plans and elevations
£300
Planning
Single storey extension
£500
Double storey extension
£600
Loft conversion (dormer, hip to gable, L shape)
£500
Garage conversion
£400
Front porch
£400
Outer building / garden room
£500
New build single dwelling
£1400
Additional revision
£70
Planning submission (per application)
£100 + application fee
Construction Drawings
Single storey extension construction drawings
£850
Double storey extension construction drawings
£950
Loft conversion construction drawings
£850
Garage conversion construction drawings
£500
Outer building / garden room construction drawings
£850
New build single dwelling construction drawings
£1500
Structural calculations
By structural engineer
Building control notice submission
£100 + application fee
Thames water build over agreement drawings
£250
Thames water build over agreement submission
£100 + application fee