Garden Walls & Brickwork in Birmingham

In England the usual permitted development limit for a wall, fence or gate is two metres, dropping to one metre where it adjoins a highway used by vehicles or a footpath beside one. The detail that catches people out is the measurement: where ground levels differ either side, the height is generally taken from the higher side, so a low looking retaining wall can measure over from the neighbour's garden.

Those rights can also be restricted by a conservation area, an Article 4 direction or a listed building, so a check with Birmingham City Council is worth it before settling a height.

If the wall is going astride the boundary or right up to the line of junction, yes. The Party Wall etc. Act 1996 requires a line of junction notice to the adjoining owner, and a notice period runs before work can start. A separate notice applies where you are excavating close to their building and going below the level of its foundations.

It is a civil obligation to the neighbour, not a council process, and it applies whether or not planning permission is needed. Usually the neighbour consents and that is the end of it, but it has to be done in writing and in advance.

Almost always water, or the footing, or both. Ground that cannot drain holds water, saturated soil pushes considerably harder than dry soil, and if there are no weep holes and no free draining zone behind the wall that pressure has nowhere to go but into the brickwork. The second cause is a base that never reached firm material, so the wall settles unevenly and opens up at the joints.

Surcharge is the third. A driveway, a parked car or a shed placed on the ground above a wall that was built for nothing but soil will move it eventually.

Sleepers are quicker to build, cost less on a straight run, and suit a terraced garden where the timber sits comfortably with planting. They are pinned or bolted back, and treated softwood has a finite life, so think in decades rather than forever. Blockwork with a brick or stone face costs more and takes longer, but it takes more load, holds a crisp line and can be built to match the house.

The retained height, what sits on the ground above and how long you want it to last usually decide it between them. We will say which we would use and why.

It depends on the ground and on the load, so we dig rather than assume. The footing has to get past topsoil and any made ground onto material that will actually carry the wall, and be deep enough that seasonal ground movement and frost are not working on it. On shrinkable clay, which is common in parts of Birmingham, and particularly where there are trees nearby drawing moisture out, footings need to go deeper than people expect.

A retaining wall is a different calculation again, because the base has to resist sliding and overturning, not just carry weight.

Usually, and it makes more difference than most people expect. We look at the brick type and size, the bond, the mortar colour and the joint profile, because a modern brick in a grey mortar next to a weathered red house with a bucket handle joint will read as new no matter how neatly it is laid.

Where the house brick is no longer made, reclaimed brick is often the closer answer than a new lookalike. If nothing matches convincingly, a deliberate contrast in a complementary brick or a rendered face tends to look better than a near miss.

For a typical domestic run, allow roughly four to ten working days depending on length, height and access. Excavation and the footing take the front of the job, the footing needs time before the wall goes up on it, then the courses, then the drainage layer and backfill behind. Steps, piers, copings and any paving on the terrace add to that.

Access is the biggest variable. A rear garden reached only through the house means barrowing everything in and out, which changes the timescale more than the size of the wall does.

If the wall retains ground, yes, always. Behind the wall goes a zone of clean free draining stone wrapped in a geotextile so soil fines cannot silt it up, with weep holes through the face or a perforated drain at the base taken to somewhere it can discharge. Without that, every wet spell loads the wall with water pressure it was not built to take.

A freestanding wall does not need it, but it does want a damp proof course near the base and a coping that throws water clear, so the brickwork is not permanently wet.

Yes, and cutting steps into a bank is usually tidier than bolting them onto the front of it. The bank is cut back, the sides of the flight are held with retaining cheeks in sleeper, block or brick, and the flight is set out so every rise is the same. Uneven rises are what makes garden steps feel unsafe in the dark.

Where the drop alongside is significant, or the flight is long, it is worth planning a handrail and a slip resistant tread finish in from the start rather than adding one later.

The face is the cheap bit. What moves the price is the retained height, the ground you are founding on, how much excavation and spoil removal is involved, whether the wall needs designing rather than building to standard detail, the drainage behind it, and access to the back garden.

Rather than quote a rate per metre that ignores all of that, we come and look, check the levels and the boundary, and price the footing, the drainage and the brickwork as one written job. Call 07837 577358 or send a photo with a rough length and height.