Renovation External Wall Discussion Preparation Checklist

Give each elevation a consistent name based on the direction it faces, and use those names in every photograph, note and conversation from this point on.

Front and back mean different things to different people, and the confusion usually surfaces at the worst possible moment on site.

Photograph each elevation corner to corner from as far back as the plot allows, then take a second overlapping set from closer in.

A professional working from photographs needs both the whole elevation and the detail, and gathering both sets is quick while you are already outside.

Record where an elevation cannot be seen or reached, for example behind an outbuilding, a dense hedge or a neighbouring structure, and say so explicitly.

An unseen elevation is an open question, and saying so keeps it from being assumed to match the ones that were looked at.

Note how much of each elevation can be seen from a public road or path, since that affects the whole conversation about external appearance.

Whether a change in external appearance needs permission depends on local rules; confirm what applies rather than assuming anything.

Note where one elevation looks different from the others in material, finish or window arrangement, and photograph the junction between the two treatments.

Differences between elevations usually mark extensions or earlier repairs, and the junction between them is where new work tends to become complicated.

Record which elevation takes the driving rain and which stays wet longest after a shower, based on what you have observed while living there.

Exposure is something only an occupant can report, and it changes advice about coatings, repairs and detailing.

List every vent, flue terminal, extract grille and pipe passing through the external wall, and photograph each with enough surroundings to place it.

Penetrations are the items most often missed from an external scope, and each one raises a separate question about what happens to it.

Photograph meter boxes, service intakes and any sealed cover on the wall, noting which are locked or clearly belong to a service provider.

Anything belonging to a service provider must be dealt with by them; ask who arranges that and what information they require.

Record equipment attached to the wall such as an alarm sounder, aerial, external light, tap, dish or an outdoor unit, and note which still work.

Equipment that no longer works is often removed without asking, and equipment that does work is often refixed badly.

Note where downpipes, gutters and their brackets are fixed into the wall, and photograph any bracket that has stained the wall beneath it.

Staining below a fixing usually points to water finding a route in, which is worth raising while the wall is being discussed anyway.

Record anything built against the wall such as a lean-to, canopy, fence, gate or raised planter, and note whether it is fixed into the wall or standing free.

Structures fixed into a wall have to be taken down and put back, and whoever does that needs to know before the work is planned.

Ask who is responsible for removing, storing and refixing each item on your list, and where in the sequence each of those steps happens.

Removal and refixing are frequently assumed to belong to somebody else, which is how items come back crooked or not at all.

Ask which items need disconnecting rather than simply unscrewing, and record what has to be arranged in advance for each one.

Disconnection of any service belongs with the relevant provider or a qualified professional; never remove anything still connected.

Walk the base of each wall and note where soil, paving or planting sits high against it, photographing each place from a low position.

Ground that has crept up against a wall over time is a common finding in older properties and changes what advice you receive.

Record the position of any air brick or low-level vent, and note whether anything is covering, blocking or partly burying it.

Do not clear or alter a vent before asking a qualified professional what it is doing and what it serves.

Note where paths and paving appear to fall towards the wall rather than away from it, and where water stands after heavy rain.

Where water goes is easy for an owner to observe and difficult for a professional to work out from a single dry visit.

Photograph every gully, drain and downpipe outlet along the base of the wall and note whether each appears clear or obstructed.

Rainwater outlets around a property are rarely recorded anywhere, and they matter as soon as external work is planned.

Record any tree, shrub or climbing plant growing against the wall, noting how close the stem sits to it, and photograph the base of each.

Trees and their roots raise questions about the ground and the structure; ask a qualified professional before any removal is planned.

Note bands of staining, salting or persistent damp appearance near the base of the wall, and record where they sit in relation to a visible feature.

Do not interpret staining yourself; record it and pass it to a qualified professional who can establish the cause on site.

Establish from your own paperwork where the boundary is understood to run in relation to each wall, and mark every point where you are unsure.

Boundary positions are a legal matter; take advice from a qualified professional rather than relying on what is on the ground.

Record where a neighbouring structure abuts your wall, and photograph the junction from both sides where you are able to do so with permission.

Junctions with a neighbouring structure are where most external work becomes a shared question rather than a private one.

Note which parts of the wall could only be reached from land you do not control, and keep that list separate from the rest of your notes.

Access from someone else's land is a different kind of problem from a technical one, and it needs to be identified before design work begins.

Ask a qualified professional what procedures may apply where work affects a shared or boundary wall, and record the answer before approaching anyone.

Procedures affecting shared and boundary structures vary by area and can involve formal steps; confirm what applies with a qualified professional.

Record any feature shared with a neighbour such as a gutter, a coping, a gate post or a fence line, and note who has maintained it in the past.

Shared features with no clear owner are the ones nobody has maintained, and they surface as soon as work touches them.

Note where the wall appears painted, rendered or coated and where the original material is exposed, then mark on a photograph where one gives way to the other.

The boundary between treated and untreated areas often explains where problems have appeared and where they have not.

Photograph anywhere a coating is lifting, blistering or cracking, and note where it sounds hollow when tapped gently with a knuckle.

Hollow areas suggest a coating is no longer attached, which is a question a professional will want to look at closely.

Record patches that differ in colour or texture from the surrounding wall, and note whether each follows a crack, an opening or a service route.

The shape of a patch usually explains why it exists, which is more informative than the patch itself.

Ask previous owners, neighbours or your sale paperwork what has been applied to the wall before, marking clearly anything that has not been confirmed.

What neighbours and previous owners recall about a coating is worth having, provided the uncertain parts are marked as uncertain.

Prepare the question of whether an existing coating would have to be removed for any proposed work, and what removing it would involve here.

Removing an existing coating can disturb materials that need specialist handling; ask a qualified professional before assuming it is straightforward.

Search your paperwork for any documentation about previous external treatments, and note which organisation carried out the work where it is recorded.

Paperwork about earlier treatment sometimes carries conditions that still matter, and it is easier to find now than under pressure.

Note where there is level ground along each elevation for access equipment to stand, and where a slope, step or planting bed interrupts it.

Access equipment needs somewhere to stand, and the constraints are obvious on the ground but invisible on a drawing.

Record overhead cables, branches and projections along each elevation, and photograph them from below so their position is clear.

Never assess clearance to overhead cables yourself; that belongs with a qualified professional and the relevant service provider.

Note in rough terms the narrowest point on the route to each elevation, and record what would have to be moved or removed to widen it.

A side passage or gate that nothing fits through changes how external work can be carried out, and knowing it early changes what gets proposed.

Decide and record which planting and external features you want protected, and which you accept may not survive the work.

Planting near a wall is usually lost by default, and an owner who has stated a preference gets a different outcome.

Ask what access arrangements need to be agreed in advance with anyone outside the household, and record what that answer depends on.

Access arrangements involving other people take longer to settle than anything technical, so they benefit from an early start.

Write a short plain statement of what you want the outside of the property to look like when finished, and share it at the first conversation.

A written intent gives a designer something to test options against and gives you something to hold them to.

Decide and record which elevations are in scope and which are being left untouched, since the junction between them becomes a design problem in itself.

Partial external work is common and reasonable, but the boundary needs designing rather than discovering.

List external features you want kept exactly as they are, and mark which of them would be difficult or impossible to reinstate once removed.

Original external details tend to be removed for access and then not put back, because nobody said they mattered.

Record every point where new external work would meet untouched wall, and ask how each junction is intended to be resolved.

These junctions are where a partial external project either reads as deliberate or as unfinished.

Write down whether you would prefer an approach that could be undone later, and put it to the designer as a preference rather than as an instruction.

Reversibility is a legitimate owner preference that rarely gets asked about and sometimes changes which option is proposed.

Record who in the household answers external appearance questions, so that a query raised on site has a single answer rather than several.

Appearance questions on site are answered by whoever is available, which is how a household ends up with something nobody chose.