Question 1

What is the price range for squaring off a hipped roof and adding a dormer in SE23?

Accepted Answer

The full cost of a gable-end loft conversion on an SE23 property — reconstructing the hipped section as a gable, building a rear dormer, installing the new staircase, insulating and boarding the loft floor, and fitting out a bathroom — runs from around £59,000 to £93,000. What moves the figure up or down is the pitch and span of the existing roof, the width the dormer takes across the rear, and the bathroom specification. PrimeCraft itemises every element separately so you see the gable rebuild, dormer shell, staircase, and en-suite as distinct costs rather than one opaque total, with the written quote delivered the same day as the survey.

Question 2

Does the Horniman Museum's heritage status affect planning on surrounding SE23 residential streets?

Accepted Answer

The museum's listed-building protection applies to the buildings and collection, not to the residential streets that border the parkland. Geoffrey Road, Devonshire Road and the wider web of SE23 terraces around them are not inside a conservation area for the most part. Homes sitting on the immediate boundary of the museum grounds are worth checking individually against Lewisham's planning records, but the great majority of Forest Hill addresses fall under standard permitted-development rules. PrimeCraft confirms the planning position for every property at the survey stage rather than assuming.

Question 3

What does a rear extension combined with a full kitchen refit cost in Forest Hill, SE23?

Accepted Answer

Building a single-storey rear extension and fitting out a new kitchen at the same time — running both under one contract — typically costs between £68,000 and £108,000 on an SE23 semi, with the range reflecting differences in extension footprint, kitchen specification, and whether the existing layout needs structural reordering. Wrapping the two trades into a single programme cuts the total programme length considerably, because the kitchen-fit trades follow the structural crew straight through without waiting for a separate handover. PrimeCraft manages the full scope from groundworks to final installation, issuing a single itemised quote on the day the property is surveyed.

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