Need an architect?

Planning & design help

Most extensions and loft conversions start with a set of drawings. If you don’t have plans yet, we handle them for you through our design partners. They prepare the drawings and the planning and building regulations submissions for us, as part of your project, and we price it and build it.

Designers we work with

Studio 1284

Rob Dawtrey, Architectural Designer

Based in: Horbury, Wakefield
Works on: House extensions across Leeds and Wakefield
Recent project: Two-storey rear extension in Colton, Leeds (planning approved October 2026)

studio1284.co.uk ↗

Ready for drawings? Contact us, or tick "I need drawings" in our extension calculator, and we’ll arrange them with our design partners.

Two-storey rear extension with timber cladding and balcony, designed by Studio 1284 — Two-storey rear extension with timber cladding and balcony

Front elevation of a detached house, designed by Studio 1284 — Front elevation of a detached house

Contemporary house front, designed by Studio 1284 — Contemporary house front

Project photos: Studio 1284

Flinn Architecture

John Flinn, Architectural practice

Based in: Menston, near Ilkley
Works on: A family-run practice: extensions, remodels, barn conversions and new homes
Recent project: Extensive remodel and extension of a 1960s house (completed summer 2024)

flinnarchitecture.com ↗

Ready for drawings? Contact us, or tick "I need drawings" in our extension calculator, and we’ll arrange them with our design partners.

Remodel and extension of a 1960s house, designed by Flinn Architecture — Remodel and extension of a 1960s house

Updating and extending a pair of 1970s dormer bungalows, designed by Flinn Architecture — Updating and extending a pair of 1970s dormer bungalows

Single-storey rear extension, designed by Flinn Architecture — Single-storey rear extension

Project photos: Flinn Architecture

How it works

Get your drawings. Tell us you need drawings. We arrange them with our design partners and talk your ideas and budget through with you.
Send us the plans. We’ll price the build from the drawings, so you know the real cost early.
We build it. Our team works from your approved drawings, from our base at Thorp Arch.

Our design partners work for 4G as subcontractors, so drawings and planning submissions go in 4G’s name as part of your project. Are you a designer working in West or North Yorkshire? Get in touch about being listed.

Already have drawings?

Send them over and we’ll come back with clear next steps and a price for the build.

Discuss your project → Call 01937 208224