The 2m permitted development height limit
Under permitted development rights, a new or replacement fence, wall or gate can generally reach up to 2 metres in height without planning permission, away from a road used by vehicles.
That height is measured from the natural ground level on the lower side where there's a change in level, which can make a fence look and function as taller than 2m when viewed from the raised side.
These are general rights and can be restricted or removed on individual properties, so checking with the local planning authority before installing anything close to the limit is sensible.
Garden doors set into a masonry wall
A garden door hung within a brick or block opening behaves differently to a gate hung between timber posts, since the fixings go into masonry rather than a post that can be dug out and replaced.
Frame fixings into old or soft mortar joints are a common failure point, and repairs often involve re-fixing into sound brick rather than simply tightening the same holes.
Replacing a concrete gravel board that has crumbled
A concrete gravel board crumbling at one end usually points to a spalled or corroded reinforcing wire near a corner or a slot where standing water has sat against it longest, rather than a fault along its whole length.
Because concrete gravel boards slot into the posts, a single damaged board is normally lifted and swapped without disturbing the panel above, provided the slot itself hasn't also broken away.
Ongoing access rights reserved under a utility wayleave
A recorded wayleave or easement for utility apparatus usually reserves an ongoing right for the utility company to access and maintain their equipment, which can mean a fence built across the strip needs a lockable gate or removable section.
Building an entirely fixed fence over an area subject to this kind of reserved access can lead to the utility company needing to remove part of it later at the owner's inconvenience.
Checking the title register for any registered wayleave before finalising a fence design avoids this kind of retrofit.
Snagging and sign-off walk-round
A finished fence should be walked end to end with the client before sign-off, checking posts are plumb, panels are level and gates open and close cleanly through their full swing without binding on the ground.
Gaps under gravel boards, exposed fixings, and any concrete splashed onto adjoining paving or planting during the install are the kind of small snags worth catching at walk-round rather than left for the client to notice weeks later.
Where any item is flagged, agreeing a specific date for it to be resolved — rather than a vague 'we'll come back' — is what actually gets snagging closed out.
Moisture content before staining or treating
Applying stain or preservative to timber that's still wet from recent rain or from fresh pressure treatment traps moisture under the coating rather than sealing it out, reducing how long the treatment lasts.
Repairs are timed, where possible, to let new or rain-affected timber dry to a suitable moisture level before any coating is applied.
Breaking out old concrete footings
An old post base often left in the ground after a previous fence comes out will usually be a lump of concrete far bigger than the post it once held, and it rarely sits exactly where a new post needs to go.
Breaking it out with a hand tool or breaker takes real time compared with digging clean ground, and on a long run of old fencing there can be one buried lump per post rather than just an occasional obstruction.
Where a footing can't be fully removed without excessive disruption, offsetting the new post's position by a short distance is usually more practical than fighting the old base to keep exact spacing.
Locks: nightlatch, deadlock, padlock hasps
A nightlatch-style mechanism, a mortice deadlock built into the gate frame, or a simple padlock-and-hasp arrangement each offer a different balance of convenience and resistance to forcing on an outdoor gate.
A mortice lock recessed into a timber frame is more weather-protected than a surface-mounted hasp, but needs a soundly built frame section to sit in.
Wind loading on exposed runs
A fence on an open, elevated or unsheltered boundary — a plateau, a field edge, or a long unbroken run with no buildings breaking the wind — takes a real structural load that a sheltered suburban garden never sees.
Standard 75x75mm posts and full-height solid panels are the combination most likely to fail here; heavier posts, shorter bays between them, and a slatted or louvred profile that lets some wind through all reduce the load rather than fighting it head-on.
It's a specification decision made at quote stage, not something to retrofit after the first panel goes over in a storm.
Threshold and step detailing under a gate
Where a gate crosses a change in ground level, a threshold detail — a shaped cill, a small step, or a sloped paving strip — needs designing in so the gate can swing freely without a permanent gap left underneath for drafts, debris or small pets to pass through.
Retrofitting a threshold detail to an existing gate is more limited than designing it in from the start, since the gate's swing arc is already fixed by its hinges.
Repairing fence sections undermined by fox or badger digging
A gap dug beneath a gravel board or the base of a panel is usually a fox rather than a badger unless it's part of a larger, more established sett system, and the repair approach differs depending on which is causing it.
Fox damage can usually be repaired by reinforcing the base with a buried mesh skirt or a deeper gravel board, but any active badger sett close to the boundary is legally protected and needs specialist advice before any digging near it as part of the repair.
Maintaining ground sockets for gate drop bolts
A drop bolt socket set into the ground or a hardstanding surface collects grit, leaves and standing water over time, and a socket that isn't kept clear will stop the bolt seating fully, leaving a gate leaf that looks locked but isn't actually secured at that point.
Clearing and lightly lubricating the socket as part of routine maintenance is a small task that prevents a far more disruptive failure where a socket has to be dug out and reset after becoming completely blocked.
Snow load and drifting against capping
Snow rarely loads a vertical fence face directly, but it drifts and settles along the top of a run, especially against capping or trellis toppers that catch and hold it rather than shedding it.
A sustained thaw-freeze cycle on wet capping timber is a common cause of splitting, since water trapped in the grain expands as it freezes and opens up hairline cracks that widen each winter.
A capping profile with a slight fall to shed water, rather than a flat top, reduces how much moisture sits there in the first place.
Conservation area material rules
Inside a conservation area, the council can restrict fence height, colour and material even within otherwise-permitted development limits, usually through an Article 4 direction that removes some of the usual PD rights.
The common ask is close-boarded or picket timber in a natural or traditionally painted finish rather than modern composite or bright stains, particularly on frontages visible from the street.
For a listed building itself, or land within its curtilage, listed building consent can apply even to a garden fence, so it's worth a call to the conservation officer before committing to a spec.
Gravel boards in timber and concrete
A gravel board sits at the base of a fence, between the ground and the lowest board or panel, taking the ground contact and splash-back so the panels above it don't have to.
A timber gravel board is cheaper and easier to cut to length but is the component most likely to need replacing within a few years, since it sits closest to damp ground; a concrete gravel board costs more up front but essentially removes that recurring repair.
Either type should sit slightly proud of finished ground level with a stone bed beneath it, rather than being buried, so water can drain away instead of sitting against the timber or panel edge.
Wayleaves and easements crossing a boundary
Some plots have a legal wayleave or easement allowing a utility company access to overhead lines or buried infrastructure crossing the garden, which can restrict what's built directly above or around that strip of land.
A shared access easement giving a neighbour a right of way across part of a garden also affects fence planning, since blocking that route — even with an otherwise perfectly legal fence — can breach the easement's terms.
These details are usually in the property's title register rather than obvious on the ground, so it's worth checking before finalising a boundary line that crosses anything unusual.
Boundaries against a railway embankment
A boundary running along a railway embankment is very often owned and maintained by the railway infrastructure operator rather than the adjoining householder, and any work close to the operator's land, including digging near its toe or crest, usually needs prior notice or permission.
Embankment ground can also be made up of variable historic fill rather than natural strata, since many were built up from spoil during original construction, which affects both digging and the stability assumptions for post bases near the base of the slope.
Access for materials and machinery along these boundaries is frequently restricted, so confirming land ownership and any operator consent needed is a necessary step before quoting the work.
Step riser heights on a raised deck
Steps down from a raised deck work best with consistent riser heights throughout the flight, since an irregular step height is a common trip hazard, particularly where the top or bottom step differs slightly from the others.
Building regulations guidance for steps in a domestic setting generally favours risers in the range of roughly 150-170mm with adequate going (tread depth), though garden steps have more flexibility than an internal staircase.
Where a deck sits at a height that doesn't divide evenly into consistent risers, it's better to adjust the deck height slightly at the design stage than to build one oddly-sized step to make up the difference.
When a Party Wall Act notice might apply
The Party Wall etc. Act 1996 mainly concerns shared walls between buildings and excavations near a neighbour's structure, and doesn't generally apply to an ordinary timber garden fence.
It can become relevant where work involves a masonry party fence wall genuinely astride the boundary, or excavation for posts close enough to a neighbour's foundations to fall within the Act's distance rules.
Where there's doubt about whether notice is needed, a party wall surveyor or solicitor can confirm this far more reliably than guessing on site.
Transition detail from decking down to lawn or planting
The edge where a deck meets an adjoining lawn or border needs a defined transition — a fascia board with a small step down, or a gravel or edging strip — rather than boards simply stopping at soil level, which otherwise leads to soil and organic matter migrating up against the deck edge.
That buildup against an unprotected deck edge holds moisture against the timber in exactly the way a raised bed built too close to a fence does, and is a common cause of localised rot along an otherwise sound deck perimeter.
A simple edging detail agreed at the design stage costs little compared with the deck itself but noticeably protects the vulnerable soil-contact edge.
Post caps and their role beyond weatherproofing
A post cap sheds water off the end grain of a timber post or the open top of a hollow steel post, but on a security run it also removes a foothold or handhold that an open post top would otherwise offer.
Domed or sloped caps are harder to grip than a flat cap, which is worth specifying on posts near a gate or corner where climbing is most likely to be attempted.
Commercial and site boundary fencing
Commercial boundaries — industrial units, retail yards, small business premises — usually prioritise security and low maintenance over appearance, which points toward galvanised steel palisade, weldmesh or heavy-duty timber closeboard rather than decorative panel fencing.
Access control matters more here too: wide vehicle gates need clearances checked against delivery vehicle turning circles, not just car dimensions, and a site with out-of-hours deliveries may need lockable pedestrian access separate from the main gate.
Any work adjoining a public footpath or road also needs to think about temporary hoarding and public safety during installation, not just the finished boundary.
