020 7864 7245Request a fixed quote

Barking and Dagenham, London

MEP design in Barking and Dagenham

MEP design in Barking and Dagenham is mostly about ordinary houses: 68.8 per cent of households live in a house, and the Becontree Estate has its own design code. We plan the heating, ventilation, hot water and power of a home alongside its drawings. Fixed quote after a free constraints check.

Fixed quote after a free constraints check

  • MCIAT chartered
  • £2m PI insured
  • LABC Partnered
  • Fixed fees, VAT included

Request a fixed quote

We use it to check conservation areas and constraints.
Pick the council that decides your application.
A few lines: what you want to build, and anything the council has already said.
Add photos or drawings

Drop files here or choose from your device

PDF, JPG, PNG, DWG · up to 10 files, 90 MB in total

    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 mep design

    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.

    Request a fixed quote
    Brick house being extended, with a wide new opening supported over the ground floor

    The overheating and water rules that apply to services here

    Barking and Dagenham's full planning checklist asks for an overheating assessment on major development. The council allows it to sit inside the energy statement, and it must show how orientation, shading, insulation, solar-control glazing, natural ventilation or mechanical heat recovery keep rooms cool. The checklist summarises the trigger as: major development; SI 4 cooling hierarchy.

    Behind that sits the London Plan. Its policy on overheating asks major schemes to show how reliance on air conditioning is reduced, and its own summary reads: cooling hierarchy, 6 steps. The text adds that the principles can be applied to minor development too, which is why we use the same hierarchy on a house loft or a large rear extension.

    The London Plan's water policy is the second rule that touches the services. It expects planning conditions that limit mains water use for homes to 105 l/p/d (+ up to 5 l external). The national optional standard under the Building Regulations is 110 litres per person per day, against 125 as the default, so choices of tap, shower and cistern are made against the tighter figure when a condition is likely.

    None of this applies to every small job, and we say so at the start. What it does mean is that a new dwelling or a larger scheme in the borough should carry an overheating note and a water budget in the services design from the first drawing.

    Pencil resting on a dimensioned technical drawing beside a scale rule

    Local figures for Barking and Dagenham

    Figures with their unit, period and source
    MeasureValuePeriodSource
    Overheating Assessment required for major development (may form part of the Energy Statement): must show how overheating risk is mitigated (orientation, shading, insulation, solar-control glazing, natural ventilation, MVHR) and address London Plan SI 4 and the cooling hierarchy, following section 8 of the GLA Energy Assessment Guidance.major development; SI 4 cooling hierarchy—lbbd.gov.uk, LBBD Validation Checklist - Full Planning Permission (February 2026), p.17, 'Overheating Assessment'
    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 house68.8 % of households living in a house or bungalow (detached, semi-detached or terraced)Census 2021nomisweb.co.uk
    Householder applications granted66.5 %1 July 2025 - 30 June 2026assets.publishing.service.gov.uk
    Larger home extension prior approvals granted10 decisions2025 Q2 to 2026 Q1 (1 Apr 2025 to 31 Mar 2026)assets.publishing.service.gov.uk
    Larger home extension prior approvals refused36 decisions2025 Q2 to 2026 Q1 (1 Apr 2025 to 31 Mar 2026)assets.publishing.service.gov.uk
    Article 4 direction for HMOs (C3 to C4)Yes—lbbd.gov.uk
    AD L Vol 1 (2026) para 4.10, PDF p.51; 2021 edition para 5.10, PDF p.4655 degC—gov.uk
    Building Regulations 2010 reg.36(1)-(3); AD G (2015 incl 2016 and 2024 amendments) Requirement G2 and reg.36, PDF p.17110 litres per person per day—legislation.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 Barking and Dagenham
    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

    Becontree and the typical house

    The council's Becontree Estate SPD and Design Code sets how homes on the estate can change, and the Residential Extensions and Alterations SPD covers the rest of the borough. Services work on these houses has to respect a shared design code, so we keep external flues, plant and visible vents off the street side.

    That limits where an air source heat pump can sit. Rear gardens are the usual answer, and the unit then needs a pipe run to a cylinder cupboard, a power feed and a position that respects the neighbour. At a maximum flow temperature of 55 degrees Celsius, radiators are sized larger than for a boiler, and we draw that on the heating layout so the installer prices the right emitters.

    The borough has 73,902 households, and 42.4 per cent of them own their home. An extension adds a sealed room, and that room needs a planned ventilation route. The Approved Document F whole-dwelling rate is 31 litres per second for a three-bedroom home, and we choose fans and duct runs to hit that quietly.

    Planning context for MEP-led work

    Barking and Dagenham decided 388 householder applications in the latest twelve months published and granted 66.5 per cent, with 100 per cent decided in time. A third of householder cases were not granted, so the services drawings should not leave the elevations to chance.

    The larger home extension prior approval route had a harsher record: 10 granted and 36 refused. If your plan relies on it, a neat services layout helps by keeping flues and plant off the elevations the neighbours see.

    Mayoral Community Infrastructure Levy here runs at £30.3 per square metre for permissions granted this year, and the borough has an Article 4 direction for houses in multiple occupation. A shared house needs a different services design: more bathrooms, fire-rated pipework penetrations and a heating system that can be controlled by room.

    MEP design in Barking and Dagenham: what the package contains

    A typical MEP package for a house has a heat-loss summary, a heating strategy, a ventilation layout with flow rates, a power and lighting plan, a hot and cold water schematic and a drainage layout. We draw them on the architecture model, so a duct that meets a beam shows up as a clash on screen.

    Our building services design service covers the same ground in wider terms, and our electrical design drawings page covers the power side in detail. Where the structure changes too, our structural engineering service designs the beams and foundations from the same model.

    Nearby places

    Each neighbouring council sets its own checklist. See architectural drawings in Bexley for the planning side, or architectural drawings in Havering if your project is further east.

    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.
    Two-storey rear extension under construction on a semi-detached house
    Every layer specified
    Move across to open the layers; move down to pick one.

    Other services in Barking and Dagenham

    MEP design nearby

    Questions

    Does a house in Barking and Dagenham need an overheating assessment?

    The council's planning checklist asks for one for: major development; SI 4 cooling hierarchy. A single house usually does not, but we still follow the same cooling hierarchy for lofts and large extensions.

    What water use limit does the London Plan set for homes?

    The policy limits mains water use through planning conditions to 105 l/p/d (+ up to 5 l external).

    Where can a heat pump go on a Becontree house?

    Usually in the rear garden, with a short pipe run to a cylinder cupboard. We check the position against the neighbour and the estate design code.

    How much does MEP design cost in Barking and Dagenham?

    Fixed quote after a free constraints check. A single boiler replacement and a full new heating and ventilation system are different jobs, so we price after seeing the house.

    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.

    Request a fixed quoteCall 020 7864 7245WhatsApp