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Bexley, London

Electrical design drawings in Bexley

Electrical design drawings in Bexley show every outlet, circuit and charge point of a house on one plan, so quotes compare like with like. Bexley is a house borough, with 75.3 per cent of homes being houses and 68.6 per cent owner-occupied, which makes extensions and rewires the common jobs. Fixed quote after a free constraints check.

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    Architectural model of a four-storey London stucco townhouse in its terrace, with a portico, area railings, sash windows, a cornice and chimney stacks
    The house as it stands: four storeys over a lower ground floor.Existing Proposed worksAn illustrative model, built for this page.

    How we work on electrical design drawings

    Four steps from first call to approval.

    The same model cut through the middle: every floor, the stair, the chimney breasts, the new mansard, rear extension and basement in section
    Section through the model: every floor on one datum.

    1. Enquiry and constraints check

      We check the property against conservation areas, listed status, Article 4 directions, tree preservation orders, flood zone and planning history. We choose the right route and send a fixed quote.

    2. Measured survey

      We survey the house on one datum: rooms, levels, boundaries, drains, trees and the neighbours' windows that the 45° and 25° tests depend on.

    3. Building regulations

      Technical drawings are coordinated with the structural engineer's calculations, the drainage and the planning conditions.

    4. Approval and hand-over

      Building control approval, then a next-steps pack covering the commencement notice, party wall timing and CIL.

    Free redraws until approval. Every drawing set is checked independently, and the checker is never the person who drew it.

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    Pencil resting on a dimensioned technical drawing beside a scale rule

    The energy tiers Bexley applies to electrical choices

    Bexley's planning application requirements split energy paperwork into two tiers. Major schemes need an Energy Assessment, recorded here as "majors only", and the assessment is expected to give priority to district heating, including the Riverside Resource Recovery Facility network. Smaller schemes drop to a Sustainability Statement, which our data notes as "10% renewables (20% encouraged) - dated".

    Read that second entry with care. The entry cites an earlier London Plan whose policies have since been replaced, so the percentage is dated and we treat it as a prompt to ask the case officer, not a target to design to.

    For a house, the practical effect is modest. If you are adding a heat pump, solar panels or mechanical ventilation, the statement will mention them, and our drawing has to show a supply, an isolator and a cable route that match. Where the statement is silent, the electrical sheets stay simple.

    Cooling is handled in London Plan policy, which the borough applies like every other: "cooling hierarchy, 6 steps" is the recorded shorthand for the cooling hierarchy that major development must show.

    Two-storey rear extension under construction on a semi-detached house

    Local figures for Bexley

    Figures with their unit, period and source
    MeasureValuePeriodSource
    Energy Assessment required for major developments, following the GLA energy assessment guidance and the lean-clean-green hierarchy, with district heating connection (including the Riverside Resource Recovery Facility network) prioritised.majors only—bexley.gov.uk, London Borough of Bexley Planning Application Requirements (reviewed 17 October 2018), pp.15-16, 'Energy Assessment'
    Sustainability Statement is the lower tier: non-major developments that do not need a full Energy Assessment. Text states at least 10% of energy from renewables (20% encouraged), citing superseded London Plan 2016 policies.10% renewables (20% encouraged) - dated—bexley.gov.uk, London Borough of Bexley Planning Application Requirements (reviewed 17 October 2018), pp.26-27, 'Sustainability Statement'
    London Plan Policy SI 5C(1): development proposals should, through planning conditions, limit mains water use to the Building Regulations optional requirement, 105 litres or less per head per day for residential development, excluding an allowance of up to 5 litres for external use. Applies in every London borough.105 l/p/d (+ up to 5 l external)—london.gov.uk, The London Plan 2021 (GLA, March 2021), p.356, Policy SI 5 part C(1)
    London Plan Policy SI 4B: major development must show through an energy strategy how internal overheating and reliance on air conditioning are reduced, following the six-step cooling hierarchy (reduce heat entering; minimise internal heat generation; manage heat with thermal mass; passive ventilation; mechanical ventilation; active cooling). Para 9.4.1 says the principles can also be applied to minor development.cooling hierarchy, 6 steps—london.gov.uk, The London Plan 2021 (GLA, March 2021), p.354, Policy SI 4 part B and para 9.4.1
    Households living in a house75.3 % of households living in a house or bungalow (detached, semi-detached or terraced)Census 2021nomisweb.co.uk
    Owner-occupied households68.6 % of households owner-occupied (owned outright or with mortgage/loan)Census 2021nomisweb.co.uk
    Conservation areas23 named conservation areas published by the council—planning.data.gov.uk
    Listed building entries114 list entries (Historic England, within the LPA boundary)—planning.data.gov.uk
    Householder applications granted94.6 %1 July 2025 - 30 June 2026assets.publishing.service.gov.uk
    Householder applications decided in time99.4 % decided within 8 weeks or an agreed extended period1 July 2025 - 30 June 2026assets.publishing.service.gov.uk
    AD P (2013) paras 3.4, 3.6 and 3.730 days—gov.uk
    AD S (2021) para 6.2, PDF p.357 kW—gov.uk

    A blank value means the figure has not been published, not that there are none. Check your own address with the council.

    Councils bordering Bexley
    Building regulations, layer by layerPart A: structure: Approved Document A: Structure, 2004 edition incorporating 2004, 2010 and 2013 amendments. Part B: fire safety: All dwellings: fire detection and alarm system minimum Grade D2 Category LD3 (BS 5839-6), mains-operated smoke alarms to BS EN 14604. Part L: insulation: New elements in existing dwellings, limiting U-values W/(m²·K): roof 0.15, wall 0.18, floor 0.18, windows 1.4 (or WER Band B), doors 1.4. Part K: stairs: 2.0 m clear headroom over stairs. Full plans application: Building control body must decide a full plans application within 5 weeks, or longer if agreed in writingPart A: structurePart B: fire safetyPart L: insulationPart K: stairsFull plans applicationABCDE

    Building regulations, layer by layer

    The Approved Documents that shape most house projects, from structure to the application itself.

    A · Part A: structure
    Approved Document A: Structure, 2004 edition incorporating 2004, 2010 and 2013 amendments
    B · Part B: fire safety
    All dwellings: fire detection and alarm system minimum Grade D2 Category LD3 (BS 5839-6), mains-operated smoke alarms to BS EN 14604
    C · Part L: insulation
    New elements in existing dwellings, limiting U-values W/(m²·K): roof 0.15, wall 0.18, floor 0.18, windows 1.4 (or WER Band B), doors 1.4
    D · Part K: stairs
    2.0 m clear headroom over stairs
    E · Full plans application
    Building control body must decide a full plans application within 5 weeks, or longer if agreed in writing

    Electrical design drawings in Bexley: what a house set contains

    A typical Bexley set covers the consumer unit and its location, separate lighting and socket circuits per floor, the cooker and shower supplies, the garage or garden feed, and a reserved way for a charge point. We add a fittings schedule and notes where an existing circuit cannot be reused.

    The borough has 95,300 households, and most of them are houses. Where an older house has an original board and few kitchen sockets, the plan starts by marking what exists. For wider package work see construction drawings in Bexley.

    Conservation areas and listed entries

    Bexley has 23 conservation areas and 114 listed building entries, of which 99 are Grade II. Inside a conservation area, visible fittings on a front wall deserve a line on the drawing even where consent is not needed.

    Outside those areas the work is almost always internal, and the electrical plan is judged by the installer and building control, not the planners.

    How Bexley handles household applications

    The council decided 877 householder applications in the latest period and granted 94.6 per cent, with 99.4 per cent decided on time.

    The adopted design guidance for alterations is "Design Guide SPD Part 2: Building Alterations and Extensions". Where an extension is behind the electrics, we coordinate the two so that cabling does not conflict with the structure. Our team can also prepare building regulations drawings in Bexley from the same model.

    Certification and charge points

    Part P requires notifiable work to be certified within 30 days of completion. A charge point on a new dwelling is expected to have a nominal output of at least 7 kW.

    We draw the cable route and the spare way; the registered installer does the rest. Our national electrical drawings guide lists the rules and the lighting efficiency figures.

    Rewiring an older Bexley house, step by step

    Start with a survey of what exists: the age of the board, the type of cable you can see, whether the lights share a circuit with the sockets and where the earth bonding runs. We record these findings on the existing-conditions sheet and state plainly what we could not see behind plaster.

    Next comes the proposed layout. We give the kitchen its own radial circuits for the oven, hob and appliances, put each floor's lighting on a separate circuit so one fault does not darken the house, and add sockets where you will actually use them rather than at the building-regulations minimum. The schedule lists each fitting once, which keeps the electrician's quote honest.

    Finally we check the plan against the architectural sheets, so that no switch ends up behind an opening door and no downlight lands on a beam. The set then goes to your electrician, who confirms capacities and cable sizes before first fix.

    Getting a quote

    Tell us what is changing and send the plans. We check Bexley's requirements first, then give a fixed price. Neighbours such as electrical design drawings in Bromley follow the same format with their own council rules.

    What you receive

    Building regulations section drawing showing the construction build-up
    Sample drawing. Building regulations section showing construction build-up for a building control check.
    House extension under construction with scaffolding, new glazed doors and building materials
    Every layer specified
    Move across to open the layers; move down to pick one.

    Other services in Bexley

    Electrical design drawings nearby

    Questions

    Does Bexley need an energy statement for a house extension?

    Smaller schemes fall into the lower tier, a sustainability statement. Major developments need a full energy assessment. The case officer confirms which applies.

    Is the renewables percentage in Bexley's requirements list still current?

    Treat it as dated. It comes from an older list and cites replaced policy, so ask the officer before designing to it.

    Can electrical drawings go with a building regulations application?

    Yes. They form part of the technical set sent to building control.

    Who certifies the work?

    The registered installer or building control body, within 30 days of completion.

    Sources and dates

    City of London skyline glowing at dusk across the Thames under a dramatic orange sky

    Tell us about your property.

    We check the constraints, then send a fixed fee. Messages before 3pm get a reply the same working day.

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