Hampstead Garden Suburb Trust Consent Is Not Barnet Planning

Two decision-makers on one pin

Most external works in Hampstead Garden Suburb need Barnet planning permission and separate written consent from the Hampstead Garden Suburb Trust under its Scheme of Management. Trust consent does not replace planning permission, and planning permission does not replace Trust consent.

That dual regime is why catalogue rear extensions fail here: materials, roof form, boundaries and subordinate massing must satisfy Trust design guidance as well as Barnet householder tests.

What to freeze early

Confirm whether the property is within Trust control, check the Barnet conservation-area record, and review roof, window, boundary, garden and tree constraints before design options harden. One measured survey should feed both packs.

Our dual-consent guide and Hampstead Garden Suburb area guide set out the sequence. Local pages such as HGS house extensions are written for that dual audience.

After dual principle

Only freeze building regulations drawings and contractor pricing after both Barnet and Trust audiences can accept the same envelope. Technical redesign after Trust refusal is the expensive failure mode this sequence prevents.