Two-storey extensions · Hertfordshire
Two-storey extensions in St Albans.
A two-storey extension in St Albans adds room above as well as below, so the design has to settle both floors and the elevation at once. We draw it as one move and take it through St Albans City and District Council.

How the path runs in St Albans
The Plan Hub takes two-storey extension work in St Albans from first idea to a construction-ready handover. Brief, measured survey, design, planning, tender, in order, held by one team that owns the thread.
St Albans City and District Council is the authority that decides any application in St Albans. We prepare the drawings and manage that submission, then hand the package to your builder. Our job stops where construction begins.
Other work we cover in St Albans
Two-storey extensions nearby in Hertfordshire
Common questions
Do I need planning permission for a two-storey extension in St Albans?
Some two-storey extension work falls under permitted development, but limits on size, height and materials apply, and they are tighter in conservation areas and on Green Belt land. St Albans City and District Council is the authority that decides any application or issues a lawful development certificate for St Albans. We prepare the drawings and manage that submission for you.
What does the design and planning stage involve for a two-storey extension?
It runs in order: brief, a measured survey of the house, design, then the planning submission to St Albans City and District Council. One team holds the thread through each step, so nothing is dropped between people. You receive a contractor-ready package at the end.
Does The Plan Hub build the two-storey extension as well?
No. The Plan Hub takes the work through design and planning to a construction-ready handover. Your chosen builder carries out the construction in St Albans. Our job stops where theirs begins.
Thinking about two-storey extension in St Albans? Start with a conversation.
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