Service — Extensions

House extension plans, prepared for warrant

Whether you're adding a kitchen extension, a rear extension for more living space, or a two-storey addition, we prepare the drawings and warrant documentation your project needs, at a fixed fee, start to finish.

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What's included

What you get

Every extension project includes existing and proposed drawings, elevations and the supporting documentation Scottish building standards ask for, prepared to a standard intended to minimise back-and-forth with your local authority.

Existing floor plan before a single-storey extension

Proposed floor plan after a single-storey extension

Existing & proposed drawings

Accurate as-built survey drawings alongside your proposed extension layout.

Elevations

External elevations showing how the extension will look and sit against the existing house.

Building warrant documentation

Drawings and supporting information packaged for submission to building standards.

Structural engineer input

We work with a trusted structural engineer we've partnered with on numerous extension projects, so structural calculations are arranged as part of the process rather than something you have to source separately.

Amendment support

If a building standards officer requests changes, we revise the plans and resubmit.

Typical projects

Common types of extension

Kitchen extensions

Rear or side extensions to create a larger, more open kitchen and living space.

Rear extensions

Single-storey additions extending living space into the garden.

Two-storey extensions

Larger additions adding space across ground and upper floors.

Side extensions

Making use of side return space, often alongside internal reconfiguration.

Process

How an extension project runs

Tell us about your project

Share the address and roughly what you're hoping to add.

Discuss your requirements

We talk through layout, budget and any constraints on the site.

We create your plans

Drawings are prepared and refined with you until they're right.

We prepare your warrant documentation

Plans are packaged to meet Scottish building standards requirements.

Move forward with confidence

You have approved, buildable plans ready to hand to a builder.

FAQs

Extension plans — common questions

Do I need a building warrant for an extension? +

Most house extensions in Scotland require a building warrant before work starts. We can talk through your specific project and what applies to it.

How long does an extension take to design? +

Timescales depend on the size and complexity of the project and how quickly feedback is provided at each stage. We'll give you a realistic estimate once we understand your project.

Can you deal with the council on my behalf? +

Yes, we handle the preparation and submission of warrant documentation and liaise with building standards on technical queries.

Do you provide structural calculations? +

Yes — we work with a trusted structural engineer we've partnered with on numerous extension projects. Where structural calculations are needed, we arrange these as part of your project rather than leaving you to source them yourself.

Get Started

Planning an extension?

Tell us about your project and we'll come back with how we can help.

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