What areas does Studio Harrison work in?

Derbyshire and the Peak District predominantly, with regular projects across the wider East and West Midlands, and a number of clients in Jersey, Channel Islands.

Do I need planning permission for my extension or new build?

Most extensions and all new-build homes need either planning permission or, in some cases, a Lawful Development Certificate confirming permission isn't needed — which applies depends on scale, location, and whether the property is listed or in a conservation area.

Do you offer snagging inspections for new-build homes?

Yes — a technologist-led inspection of a newly built home before or shortly after legal completion, checking construction quality and finish against the specification and building regulations.

What's a fabric-first approach to sustainable design?

Treating the building's fabric — insulation, airtightness, glazing, thermal bridging — as the foundation of energy performance, before adding renewable technology on top, in line with Passivhaus and AECB principles.

How long does a typical residential project take?

Usually several months from initial consultation to a full set of construction drawings, plus a further 8 weeks for planning determination on a standard application.

How much does it cost to work with an architectural designer on a home project?

The investment is usually structured either as a percentage of the construction cost or as a fixed fee for each design stage, agreed upfront once the scope is clear.

Tommy Harrison 8/31/26 Tommy Harrison 8/31/26

Does Passivhaus Really Cost More? What New 2026 Research Actually Shows

Everyone assumes Passivhaus costs a fortune more to build. New research says otherwise — and the real figure is small enough to make the question worth asking again.

Future Homes Standard Explained: What It Means for Your New Build

A new law now governs how every new home in England must perform — not in some distant future, but from March 2027. We look at what it actually requires, and why the homes worth building were already heading this way.

Biodiversity Net Gain 2026: What It Means for Homeowners

Most extensions were never affected by Biodiversity Net Gain — and the rules for new builds and self-build plots just changed again. What the August 2026 amendments actually mean, beyond the headlines.