Design Spec Ltd.

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Design Spec Ltd. Fixed Fee Residential Architectural Design

Essex, Hertfordshire & the South East

Home Extensions • Loft Conversions • Planning Permission Smart design.

Award-winning Fixed Fee Architecture Practice serving Essex & Hertfordshire. Experts in house extensions, loft conversions, planning applications, residential developments & homeowner design services.

🏆 Most 5-star Google reviews in Essex
📐 Clear pricing. Proven planning success
👉 Message us to start your project

09/10/2026

I am just a legend I guess 😝

A successful project is about more than having a good set of drawings.There are decisions to make, questions to answer, ...
08/10/2026

A successful project is about more than having a good set of drawings.

There are decisions to make, questions to answer, builders to coordinate and changes to manage along the way.

That’s why having the right support from the start can make such a difference.

We help keep the process clear, organised and moving, so you’re not left trying to navigate it all on your own.

Good design matters. Good project support matters too.

07/10/2026

A good designer should add value long before the build even starts.

Sometimes that means making a space bigger. Sometimes it means knowing when bigger isn’t actually better.

The right design decisions can improve how your home works, simplify the build and help you spend your budget where it matters most.

That’s the approach we take at Design Spec.

Designed to make everyday living feel a little easier.A bright kitchen, space to gather and a seamless connection out to...
06/10/2026

Designed to make everyday living feel a little easier.

A bright kitchen, space to gather and a seamless connection out to the garden can completely change how a home feels and functions.

It’s not always about adding more space. It’s about making the space you have work better for the way you live.

05/10/2026

How do I cancel print without making it obvious it was a mistake…🥲

02/10/2026

We are that company⭐️

Another client review for Lauren!Clear communication, thoughtful design and supporting our clients throughout the whole ...
01/10/2026

Another client review for Lauren!

Clear communication, thoughtful design and supporting our clients throughout the whole process is exactly what we aim for on every project.

30/09/2026

Planning goes a long way when it comes to keeping your project running smoothly.

Taking the time to understand the details early on can help you feel more confident with your budget and better prepared as your project moves towards construction.

A rear extension that completely opens up the home 🏡We love how the black-framed glazing works against the traditional b...
29/09/2026

A rear extension that completely opens up the home 🏡

We love how the black-framed glazing works against the traditional brickwork on this project, creating a much brighter space and a seamless connection between the home and garden.

A simple, timeless finish that makes a big difference.

A look inside one of our completed projects🏡It’s not always about adding more space. Good design is about making every p...
28/09/2026

A look inside one of our completed projects🏡

It’s not always about adding more space. Good design is about making every part of the home work better.

From the kitchen and dining areas to the home office, bathrooms and even the w**e storage 🍷, this project shows how considered details throughout can completely transform the way a home looks and feels.

Which space is your favourite? 👇

Address

Rochford

Opening Hours

Monday 8:30am - 5pm
Tuesday 8:30am - 5pm
Wednesday 8:30am - 5pm
Thursday 8:30am - 5pm
Friday 8:30am - 5pm

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