Question 1

What does a rear extension combined with a kitchen refit cost on a Thornton Heath terrace (CR7) in 2026?

Accepted Answer

On a CR7 attached terrace, a single-storey rear extension plus a new kitchen currently costs between £52,000 and £82,000 combined. The extension structure — groundworks, steelwork, insulated warm roof, glazed doors — accounts for the larger portion; kitchen units, worktops, integrated appliances and plumbing make up the remainder. PrimeCraft separates every line item in the quote so you can adjust kitchen specification — upgrade appliances, swap worktop material — without renegotiating the build contract. The full itemised breakdown is issued the same day as our free site visit.

Question 2

Do permitted development rights cover rear extensions on terraced houses in Thornton Heath (CR7)?

Accepted Answer

The residential streets across CR7 sit under standard national permitted development rules; there is no borough-wide Article 4 direction removing those rights in Thornton Heath. That means a single-storey rear extension up to 3 m deep on an attached terrace proceeds via a Lawful Development Certificate rather than a full planning application. Under the Prior Approval neighbour-consultation procedure — where adjoining owners are formally notified and have 21 days to raise objections — the permitted depth extends to 6 m on attached terraces. PrimeCraft confirms the planning position for your specific CR7 address before you spend anything on design fees.

Question 3

Is it worth combining a loft conversion and a rear extension on one contract in Thornton Heath, and what would it cost?

Accepted Answer

Running both works under a single contract in CR7 makes practical sense: scaffolding hire, skip costs, building regulations fees, and site management overheads are shared across the full scope, lowering the combined cost compared with two separate projects. A dormer loft conversion paired with a single-storey rear extension on a Thornton Heath terrace typically costs £85,000–£126,000 together, delivering a new bedroom and en-suite above alongside an enlarged open-plan ground floor. Party-wall notices are needed for both elements on a mid-terrace, and PrimeCraft manages that paperwork as part of the contract rather than leaving it to you to navigate.

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