Fortress Associates prepares the technical reports and drawings UK planning applications need, for developers, architects and homeowners. Every specialism, done properly.
We prepare the documents UK construction projects are asked for: BRE 2022 daylight & sunlight assessments, flood risk assessments, air quality assessments, energy and sustainability statements, water efficiency and overheating calculations, urban greening, contaminated land, construction management plans and BREEAM pre-assessments for planning submissions, plus Building Regulations drawings for Building Control.
Each discipline is handled by people who prepare that assessment every day, which is how we hold fast turnarounds (4–5 working days), fixed fees agreed upfront, and zero advance payment - you only pay once you've reviewed and accepted the final report.
The aim is simple: defensible, well-prepared documents delivered on a timeline you can plan around - without the markup and process overhead of larger firms.
Every project follows the same simple flow - so you always know where you stand.
Send us your drawings → we send back a fixed quote within 24 hours → we prepare your report in 4–5 working days → you receive the final report and only then is the invoice issued. No deposits, no scope creep, no surprises.
Six principles that shape how we deliver.
4–5 working days as standard. Expedited delivery available when you need it.
£0 advance payment. We invoice only after you're satisfied with the final report.
Validated methodology, full appendices, every assumption cited and shown.
Fixed fee in 24 hours. No scope creep, no surprise invoices, no hidden caveats.
Each discipline is prepared by someone who does that assessment every day, not spread thin across a general practice.
We help you get the project across the line - not gold-plate it for the sake of it.
Email your drawings - fixed quote in 24 hours, report in 4–5 days.