“The key for me is the attention to detail, they get everything without ever missing bits which wasn’t the case with others I’d used in the past.”


If you are looking for an online planning and building regulation plans service, then Proquant can help and provide you with a fast and high-quality service at a low fixed cost.
Proquant is already the UK’s leading estimating service, and our architectural technicians can now ensure you get your planning permissions sorted quickly and professionally.
“The key for me is the attention to detail, they get everything without ever missing bits which wasn’t the case with others I’d used in the past.”

“Compared to what I saw before I started working with them It’s an incredible format. I’d say honestly that I won a lot of my work just from the presentations they supply and the way they set it out for me. ”

“The service from the guys is perfect too, any questions or queries they’re always available to answer and help, really efficiently”

We will support you all the way and can provide full building regulation plans and an accurate estimate report of building costs – all you then need to do is find a builder and start construction.
Typical costs for a single-storey rear extension
Plans service price list for all types of build
A guide to doing a self survey
You can either provide us with measurement of your existing house, or we can arrange for a survey visit at an additional cost. Our experienced experts will then get in touch and discuss with you your plans and proposals.
ProQuant then produces high quality architectural plans ready for your approval and submission to the local authority.
ProQuant can produce a full estimate of costs for your proposed design, this will allow you to make informed decisions early in the design and approval stage.
We can also produce full Building Regulation plans and can also provide 3-D renders of your proposed alterations to give you a clearer view of your new look home.
Whether you need a new single, double storey, loft extension Proquant is here to help.

Simply send us your drawings and receive back a fully costed and timed design and build scheme.
E-MAIL US YOUR DRAWINGS
estimate@proquantestimating.co.uk
OR
CALL TO DISCUSS TOGETHER
01625 420821
ProQuant’s plans service covers the full process of producing architectural drawings for planning permission — from discussing your proposals and producing high quality plans through to submitting them to your local authority on your behalf. The service is delivered by experienced architectural technicians and is available at a low, fixed cost starting from £450 for a typical single-storey rear extension.
Planning drawings for a typical single-storey rear extension start from £450. If you need a site survey arranged, this is available from an additional £200, or you can supply your own measurements at no extra cost. Planning submission to your local authority is included free of charge. Optional extras include building regulation drawings from £650, a full ProQuant cost estimate from £100, and a 3D visualisation of your proposed extension from £100.
Yes. Once your drawings have been produced and approved by you, ProQuant can submit them directly to your local authority on your behalf — and this is included free of charge as part of the service. This removes one of the more time-consuming steps in the planning process and ensures your application is submitted correctly and promptly.
You have the option to do either. If you’re comfortable taking measurements of your existing property yourself, ProQuant provides a self-survey guide to help you do this accurately — and supplying your own measurements is free. Alternatively, ProQuant can arrange a survey visit to your property for an additional cost from £200.
Yes. Building regulation drawings are available as an optional extra from £650. These are separate from planning drawings and are required before construction begins, ensuring your project meets current UK building regulations. ProQuant’s architectural technicians can produce both sets of drawings, keeping everything under one roof.
ProQuant’s plans service covers a wide range of residential projects including single-storey rear extensions, double-storey extensions, loft extensions, and other home alterations. Whether you’re planning a straightforward rear extension or a more complex structural alteration, ProQuant’s architectural technicians can produce the drawings you need for planning and building regulations.
Yes. A full ProQuant cost estimate is available as an optional add-on from £100 plus VAT. Getting your cost estimate produced alongside your planning drawings means you’ll have a clear picture of what your project is likely to cost before you approach builders — giving you the financial information you need to make informed decisions at the design and approval stage.
Yes. A 3D render of your proposed alteration is available as an optional extra from £100. This gives you a clearer, more realistic view of what your finished extension or alteration will look like before any work begins — useful for visualising the final result, sharing with family members, or presenting to your local planning authority.