Extension plans and drawings across Hamilton
For Hamilton homeowners we handle extension plans and drawings, with fees agreed in writing before any work starts.
- Guide price in HamiltonFrom £1,150 inc VAT
- PlanningWe find the right route for you
- Timescale2–6 weeks for drawings
- Postcode districtsML1, ML3

Fees in Hamilton
Guide fees for Hamilton including VAT, using our Scotland factor of ×0.98. Council and building control charges are not included.
| Option | What it covers | Guide price |
|---|---|---|
| Essential | Measured survey and planning drawings | £1,150 – £2,200 |
| Standard | Planning drawings plus building regulations drawings | £2,150 – £3,750 |
| Premium | Full pack with structural calculations and 3D visuals | £3,300 – £5,400 |
Try the guide-price tool to see a range for your own size and finish.
Who this service is for
- Projects that need a planning application or other approval
- Homeowners at the very start of a project
- Anyone who wants fixed designs before getting build prices
The most expensive changes are the ones made after the steel is ordered. A good design stage settles layout, heights, glazing and services on paper, so the build price is firm.
Planning rules that apply in Hamilton
In Scotland the questions are whether the extension falls within householder permitted development (Classes 1A to 1D) or needs planning permission from the council, and the building warrant, which is required before construction begins and is followed by a completion certificate.
Homes in conservation areas, national scenic areas and listed buildings have tighter rules, so we always check the property's status and planning history before design starts.
Building close to a public sewer needs the agreement of Scottish Water, which we check during design.
Applications are decided by your council as planning authority.
Local to Hamilton
Across ML1, ML3, we can visit, measure and advise. The same team covers Motherwell (2 miles), Blantyre (3 miles), Larkhall (3 miles), Bellshill (4 miles), all within easy reach.
Just over the Renfrewshire and Inverclyde border, Newton Mearns is about 12 miles away. Across Scotland, extensions follow Scottish planning and building standards, including the building warrant process, which we build into the programme from the start.
How the project works
Site visits are free and there is no obligation. Where drawings are needed, the design stage is priced in writing before it starts.
Free site visit
We visit your Hamilton home, measure up, talk through what you want and check the planning position.
Design and approvals
We produce the drawings and structural design, and manage the approvals so they are in place before work starts.
Fixed written price
The price is fixed in writing once the design is settled, with a clear programme and payment stages.
Build and sign-off
Our team builds the extension, keeps you updated weekly and finishes with building control sign-off.
Questions answered
Do you cover all of Hamilton?
Yes. We cover Hamilton and the surrounding parts of Lanarkshire. Site visits are free and there is no obligation.
How long does this take for a Hamilton home?
2–6 weeks for drawings, depending on the council and the complexity of the project.
Do I need building regulations approval in Hamilton?
Yes. Almost every extension needs it, whatever the planning route. In Scotland that means a building warrant before work starts.
Do I need an architect?
Not necessarily. For most extensions an experienced designer or architectural technologist is enough. For listed buildings or complex sites an architect’s input can help.
Can I use your drawings with another builder?
Yes. Once paid for, the drawings are yours to use for your project.
Book a free site visit in Hamilton
We will measure up, check the planning position and give you honest guide figures.
- Free, no-obligation site visit
- Planning route checked before you spend on drawings
- Written price once the design is agreed
- Building control sign-off at the end
Prefer to talk? Call 0800 088 6341 or .
Book a free site visit
Tell us a little about the project and we will arrange a time.