Georgian brick terrace with sash windows, arched fanlight doorways, stone steps and iron railings in London
Photograph: Lorenc Memaga

01Design and heritage reports

Design and heritage reports for London period homes

Seven written reports for the questions an older house raises before, during and after a project. Each has its own published fee, with no VAT to add, and each is written by our chartered architectural technologists.

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Fixed fee, no VAT to add

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    Write to us before 3pm and we reply the same working day. Redraws are free until approval.

    A period house asks questions a new one does not. Will the walls stay dry once they are insulated? Where can a heat pump go in a conservation area? Which repairs can a builder do without consent, and which need it? What did the house look like before the alterations a council has just approved? These reports answer one question each, in writing, at a fee you can see before you ask.

    The hub also holds the two design reports most projects start with: the feasibility study and the floor plan redesign. For a site rather than a house, the development site appraisal reads the planning position of a plot for up to nine homes before you bid.

    Rows of brick terraced houses and gardens on a residential street

    02The reports

    Seven reports, seven published fees

    Design and heritage reports: what each is for and its starting fee
    ReportForFee from
    Feasibility and options studyOwners deciding what a period house can take, in two or three sketched options£545
    Interior layout designOwners redesigning the floor plan inside the walls they already have£515 inc survey (£315 if you supply measured drawings)
    Heat pump feasibility reportOwners who want an independent view of siting, noise and planning before an installer quotes£335
    Condensation risk analysis (per element)Owners adding insulation to old walls, roofs or floors who need each build-up checked£215
    Listed building repair specificationOwners of listed and conservation-area houses who need repairs written down for the builder and the officer£755
    Historic building recording (Level 2)Applicants whose consent asks for a record of the building before it is altered£825
    Development site appraisalBuyers of a London site for 1 to 9 homes who want the planning view before they bid£645
    Red-brick mansion blocks and shopfronts on a street corner

    s7

    Listed building consent is needed to demolish a listed building, or to alter or extend it in any way that would affect its character. Source: legislation.gov.uk

    Photograph: Tom McCarten

    03Choosing

    Which report do you need?

    You are not sure what the house can take
    Start with the feasibility study: options first, drawings after.
    Consent is granted and a condition asks for a record
    Historic building recording, at the level the condition names.
    The builder needs to know how to repair a listed house
    The listed building repair specification, written for builder and officer.
    You plan internal or roof insulation in an old house
    Condensation risk analysis, one check for each build-up.
    You are buying a plot, not a house
    The development site appraisal, before the bid.

    A heritage statement is different: it supports a planning or listed building consent application, while these reports come before the design or after the consent. Heritage statements have their own page.

    The listed house in its terrace3D
    Scroll the page: the model turns with it.
    Brick cottage with a tiled roof, chimneys and a front dormer window
    Photograph: Tanya Barrow
    Kensington street lined with brick townhouses and lit streetlamps beneath an orange dusk sky

    Send us the address of your house.

    We look up the conservation area, listing and Article 4 position, then reply with a fixed fee. A message before 3pm is answered the same working day.

    Design and Heritage Reports London | From £215