For many domestic boundary projects, the commonly quoted planning thresholds are 1 metre in specified road-facing situations and 2 metres elsewhere. “Front gate” is not the legal test in every nation, though, and other property restrictions can override the general rule. Check what counts as a road-side location where you live.
In England, the Planning Portal describes the 1-metre threshold as next to a highway used by vehicles, including its footpath; the 2-metre threshold applies elsewhere. Wales uses similar headline limits in Welsh Government guidance.
In Scotland, the householder Class 3E trigger is different: the 1-metre limit applies where an enclosure fronts a road or extends beyond the line of the principal or side elevation nearest a road; the general limit is 2 metres. The Scottish Government circular explains the conditions. It also says to measure from the lowest point immediately beside the enclosure on sloping or uneven ground. Ask your council which permitted-development class applies if your property is not a house.
In Northern Ireland, the GPDO generally sets a 1-metre limit adjacent to a road used or designed for vehicular traffic and 2 metres elsewhere. The Order includes exceptions and specific rules for existing enclosures.
These are not permissions to build in every case. Listed buildings, conservation areas, planning conditions, Article 4 directions, the character of a site and local restrictions can all matter. Existing height may also affect whether replacement or alteration is permitted. Measure from ground level as the applicable rule specifies, and do not assume a taller existing wall makes any new design acceptable.
Before ordering materials, check planning records and ask the local planning authority to confirm how the rule applies to your site. The gate height checker can help organise the question but cannot make a legal determination.
Planning: General information only, not planning advice. Check the rules for your nation and property with your council before work.
Sources & further reading
- Planning Portal: fences, gates and garden walls (England)
- GOV.WALES: planning permission for fences, gates and garden walls
- Scottish Government householder PDR guidance
- Northern Ireland GPDO 2015
Checked 2026-10-25. Specifications and rules can change; confirm before ordering or starting work.