
Chapter one
Listed terraces and slate roofs at Brunswick
Brunswick Square and Terrace date from the late 1820s and are Grade I listed, so a roof repair begins with the rules, not the ladder.
Hove had 101 people in 1801 and more than 4,000 fifty years later, once it began to develop as a watering-place in the second quarter of the 19th century. Brunswick Square, completed in 1827, and Brunswick Terrace, completed a year later, are both Grade I listed. In a terrace each house has neighbours on both sides, so a roof is a run of slopes, party walls and gutters rather than a single pitch. Where a roof drains to a parapet gutter, a channel behind a low wall at the edge, or to a valley between two slopes, the lining of that channel is among the first things we open up. Standing water there finds its way into the wall and the ceiling below.
At a glance
- Brunswick Square (1827) and Terrace (1828) are Grade I
- Listed roofs need consent for changes to character
- Slate hooks are not advised below 25 degrees

1.1 Slate, hooks and lead
Where the covering is natural slate, MyBuilder says a well-installed roof can last 80 to 100 years or more, so a slipped slate is often a failed fixing rather than a failed roof. Below a 25 degree pitch, Cupa Pizarras advises against hook fixings for slate, which matters on a low slope. Lead lines valleys and seals abutments, the places where a roof meets a wall, and according to Leadworx code 4 is what most general flashing calls for. When a slope is re-slated we sort the sound slates, reuse what we can, and match any new ones for thickness and colour. Our slate roofing and lead roofing pages cover refixing and dressing.

1.2 Surveying a tall terrace
A terrace is surveyed from the street with a long lens, from the loft, and from the roof itself where access allows. The photographs show the slates, the lead and the gutter outlets, so you can judge the faults for yourself before the written quote arrives. Chimney stacks on a terrace are often shared between houses, and GOV.UK treats removing chimneys from a party wall as notifiable work under the party wall rules, with notice 2 months to a year ahead.
1.3 Listed roofs: what a repair may need
Alterations that affect a listed building's character need listed building consent, and a repair in materials that do not match is a common example. Like-for-like repair is a different matter from replacement. We write down what would be replaced and with what, so you can show the heritage team at Brighton & Hove City Council before work starts. Waste leaves with us when the job ends.
Slate figures for a Brunswick-style roof
- Slate life, well installed
- 80 to 100 years or more (MyBuilder)
- Slate re-roof
- £100 to £180 per m² (MyBuilder)
- Minimum pitch, natural slate
- 20 degrees under BS 5534 (Cupa)
- Hook fixings
- Not below 25 degrees (Cupa)
- General lead flashing
- Code 4 (Leadworx)
Source: MyBuilder slate roof cost, updated 21/08/2026; Cupa Pizarras; Leadworx, fetched October 2026






