24/07/2026
The biggest budgeting mistakes in home extensions rarely happen on site.
They usually happen months earlier.
A homeowner appoints an architect.
They commission drawings.
Planning permission is approved.
Structural calculations are complete.
Theyâre excited because their project finally feels real.
Then they ask builders to price itâŚ
âŚand discover the build costs far more than they expected.
Nobody has done anything wrong.
The architect designed exactly what was asked for.
The homeowner followed the process they thought they should.
The problem is simply that the person who understands construction costs often isnât involved until the biggest financial decisions have already been made.
After pricing hundreds of extensions and renovations, weâve seen this pattern repeat itself time and time again.
Thatâs why, from 1st September 2026, weâre changing how every new Cubit project begins.
Weâd rather help someone make the right decision at the beginning than deliver bad news at the end.
đ Already have drawings?
Weâll prepare a Detailed Cost Plan from ÂŁ125 including VAT.
This is professional cost planning.
Following a site visit, weâll prepare a detailed construction cost plan and project financial document, giving you a realistic understanding of what your project is likely to cost before you commit to construction or choose your builder.
Itâs yours to keep and use, whether you build with Cubit or not.
đĄ Starting with an idea?
Weâll begin with a 40-minute Design Consultation, followed by a written Feasibility Report from ÂŁ490 including VAT.
Youâll receive honest advice, realistic budget guidance, layout recommendations and clear next steps before you spend money on architectural drawings.
đ
Ready to move forward?
A ÂŁ1,000 reservation secures your place in our programme and is credited in full against your construction contract.
Weâre introducing this process because better decisions are made when realistic construction costs are introduced earlier.
Our aim is simple:
⢠Help you understand whatâs possible.
⢠Help you understand what itâs likely to cost.
⢠Help you make informed decisions before committing significant time and money.
We believe every great project starts with clarity.
Know your numbers. Before you commit.
If youâre planning an extension, renovation or whole-home remodel across South Birmingham, Solihull or Warwickshire, weâd love to hear about it.
Whatâs the biggest uncertainty youâre facing right now?
Budget?
Design?
Planning?
Or simply knowing where to start?
Ask us in the commentsâweâre always happy to help.