In short
What is different about rebuilding an intermediate or corner terrace: the plot and storey rules, what happens to the party walls, the neighbour surveys and consents a shared-wall rebuild needs, and how to plan a narrow house so it does not feel narrow.
The plot sets the limits
A terrace house is defined by its neighbours. An intermediate terrace shares a wall on both sides; a corner terrace on one. That shapes almost every decision in a rebuild, starting with what the plot is allowed to carry.
URA's minimum plot for a Type I intermediate terrace is 150 square metres and 6 metres wide; a corner terrace is 200 square metres and 8 metres wide. Most existing terraces meet these, but an older plot that falls short, or has lost land to a road reserve, needs checking before you plan on a rebuild.
How tall the new house can be is decided by your street, not by your plot. URA's Landed Housing Area Plan sets a storey control for each area, two storeys or three, and every landed house now sits inside an envelope set by storey height and setbacks. These are URA's published guidelines as they stand; URA can depart from them case by case, so your qualified person confirms what applies to your plot before anything is drawn.
Your neighbours, before demolition
Demolition, piling and excavation on a narrow plot are felt next door. Before any of it starts, BCA requires a pre-construction survey that records the condition of the neighbouring houses, so that any later crack can be compared against a dated record.
Tell the neighbours early, in writing, and ask for written consent where works need access to their side. Where piling or deep excavation is involved, BCA encourages engaging houses a few doors away too, because the effects travel further than the adjoining walls. A neighbour who has been briefed is far easier to work alongside for the 18 months or so of construction than one who finds out from the hoarding.
Planning a narrow house so it does not feel narrow
Six or seven metres of frontage is the defining constraint of a terrace, and the best terrace rebuilds work with the depth instead of fighting the width:
- Light from above. A courtyard, light well or skylit stair brings daylight into the middle of a deep plan that has no side windows.
- Section, not just plan. Double-height spaces, split levels and an open stair make the house read vertically, which a narrow plot rewards.
- Air through the house. Openings at both ends, and a stair or void that draws warm air up and out, cool a terrace that cannot catch a cross-breeze from the sides.
- One clear circulation spine. A single stair and lift position, decided early, frees the rest of each floor for rooms rather than corridors.
When a rebuild is not the answer
If the existing structure is sound and the plan you want fits inside it, an alterations and additions project can be faster and keeps what you have. Rebuild or A&A? walks through the decision, and a feasibility study is how to find out what the plot allows before you commit either way.
Key takeaways
- URA's minimum for an intermediate terrace is 150 sqm and 6 m wide; a corner terrace is 200 sqm and 8 m.
- Your street's storey control, not the plot, decides how tall the new house can be.
- A new blank party wall on the boundary is generally not allowed; plan the shared walls first.
- A pre-construction survey of the neighbours' houses comes before demolition, not after a complaint.
Questions people ask
You do not need their approval to rebuild on your own plot, but you do need written consent to enter their property for works on a party wall or fence, and BCA expects them to be told before works start. Where access is refused, your consultants can look for a method that avoids it.
