Patios Portsmouth: Courtyard Paving and Wall Levels

What we look at in an island yard

Levels and water: compare the proposed paving with the back door, wall protection and existing outlets. Plan falls away from the house and discuss whether permeable jointing suits the complete construction. Open joints alone cannot compensate for an unsuitable base or a missing water route. Keep this check separate from the choice of colour or slab size so the visible finish does not hide a drainage problem.

Layout and access: across Portsmouth city, 43.4% of homes are terraced and 35.5% are flats, compared with 4.5% detached and 16.5% semi-detached. These city-wide figures explain why compact yards and side returns are relevant, without describing your particular garden. Allow room for chairs, bins and the back-door route. If materials must pass through the house, measure the actual route rather than assuming rear access.

• Levels and water: door thresholds, wall protection, patio falls and a suitable runoff destination.
• Layout and access: seating space, retained planting and the route for slabs and excavated material.

Follow water from the back wall to a suitable destination

The paving should not direct water towards the house. Check the proposed finished height against the doorway, damp protection and existing drains before choosing the bed or surface. A channel beside a wall may be part of an assessed arrangement, but it is not a decorative strip that works without an appropriate destination for the collected water.

The garden drainage service is subject to scope confirmation at the visit. Existing outlets, ownership and the suitability of any proposed connection need checking; this page does not promise a particular drainage installation. If water already pools beside the back wall, describe when it happens and which surfaces feed it. That information helps distinguish a paving-level problem from a wider issue requiring further assessment or specialist advice.

Excavation and delivery inside a terrace

A courtyard reached through the home may need hand-carried removal and materials. Describe the narrowest doorway and every turn between the street and the yard. Agree how the route will be protected and how materials will be staged without preventing normal access. The size of the paved area alone does not capture the effort needed to prepare its foundation.

If an old yard surface is staying in part, decide how new levels will meet it. If it is coming out, lifting may reveal an unexpected base or buried hard material. The quotation should distinguish visible paving from the underlying work and explain how additional findings will be discussed. Preparation, bedding and jointing belong in the comparison, not just the selected slab's appearance.

Paving finishes and hard-water cleaning

Portsmouth Water supplies drinking water from South Downs chalk. All supply zones are hard or very hard, at 279–315 mg/l, so repeated hosing can leave lime staining on paving. Compare finishes that can be cleaned appropriately and follow the slab manufacturer’s maintenance advice. Natural stone and porcelain are existing patio options; neither should be selected on a promise that it will never mark.

Conservation areas include Old Portsmouth, The Terraces, Owen’s Southsea, East Southsea and Craneswater/Eastern Parade. If the property is affected by restrictions, check the proposal with Portsmouth City Council, the unitary authority, before changing the courtyard. The patio cost guide retains the approved ranges. Send Ashley the address, existing levels, access route and any pooling so preparation, jointing and removal can be discussed at the visit.