020 7864 7245Request a fixed quote

Thurrock, Essex

Architectural drawings in Thurrock

Thurrock has its own design guide for home alterations, and it gives numbers: a limit on how much of a plot can be covered, caps on dormer width and a rule on how many houses in a street may be split into flats. Our architectural drawings in Thurrock start from £745 including VAT. We are MCIAT chartered architectural technologists, and we begin with a free check of your address.

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 architectural drawings

    Seven 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. Design options

      We model the house in Revit and show you options in 3D and plan, with the planning strategy and the precedents in your street.

    4. Design frozen

      You choose an option in writing. Nothing changes after this without your say.

    5. Independent check

      A second chartered technologist checks every sheet against the council's validation checklist and the policy. A senior review signs it off before anything is submitted.

    6. Submission

      We prepare the forms, certificates, fee and documents and submit through the Planning Portal.

    7. Officer liaison

      We answer the planning officer and make any amendments within five working days, at no charge until approval.

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

    Request a fixed quote
    Red-brick mansion blocks and shopfronts on a street corner

    Thurrock in numbers

    Figures with their unit, period and source
    MeasureValuePeriodSource
    Green Belt share of the council area63 % of council area covered by green-belt polygons—planning.data.gov.uk
    Listed building entries246 list entries (Historic England, within the LPA boundary)—planning.data.gov.uk
    Scheduled monuments17 scheduled monuments intersecting the LPA boundary (Historic England)—planning.data.gov.uk
    Conservation areas7 named conservation areas published by the council—planning.data.gov.uk
    Householder decisions363 decisions1 July 2025 - 30 June 2026assets.publishing.service.gov.uk
    Householder applications granted81.5 %1 July 2025 - 30 June 2026assets.publishing.service.gov.uk
    Householder applications decided in time99.2 % decided within 8 weeks or an agreed extended period1 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
    Lawful development certificate applications (PS1)209 certificates2025 Q2 to 2026 Q1 (1 Apr 2025 to 31 Mar 2026)assets.publishing.service.gov.uk
    Households living in a house76.2 % of households living in a house or bungalow (detached, semi-detached or terraced)Census 2021nomisweb.co.uk
    Average price, terraced319,032 GBP2026-07publicdata.landregistry.gov.uk
    Supplementary planning documentThurrock Design Guide: Residential Alterations and Extensions (RAE) SPD—thurrock.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 Thurrock
    Constraints check: ThurrockConservation areas: 7 named conservation areas published by the council. Listed building entries: 246 list entries (Historic England, within the LPA boundary)7Conservation areasA246Listed building entriesC

    Constraints check: Thurrock

    What we check first on any Thurrock address. Counts are for the whole council area.

    A · Conservation areas
    7 named conservation areas published by the council
    C · Listed building entries
    246 list entries (Historic England, within the LPA boundary)

    What the Residential Alterations and Extensions guide measures

    The council's reference for extensions is the Thurrock Design Guide: Residential Alterations and Extensions (RAE) SPD, a companion to the Thurrock Design Guide: Design Strategy SPD. It is unusually numerical. For rear extensions it applies angle tests (45 degrees (height), 60 degrees (depth and width)), measured from the middle of the neighbour's nearest ground-floor window.

    It also caps how much of a plot may be built over. For a curtilage between a hundred and five hundred square metres the guide allows buildings to cover 30% (curtilage 100-500 sq m), counted after taking away the original house and original outbuildings. Smaller plots get a higher allowance and larger ones a lower one, so your site area decides the budget before any design starts.

    We calculate the coverage figure at the very first stage and send it with the options. A garden room, a shed and a rear extension all draw on the same allowance, which is the point owners most often miss.

    Rear view of brick terraced houses in London with slate roofs and chimney stacks along the shared roofline

    Dormers, infills and flat conversions by the numbers

    The guide's dormer table ties width to visibility: the limits are 1/3 width, 1.4 m (street); 1/2 width, 2 m (less prominent); 0.3 m below ridge; 0.6 m from hip/verge, with the larger allowance going to the less prominent slope. We draw the roof first and the dormer second, so the proportion is tested on the elevation before a client falls in love with a shape.

    Rear infill extensions should stay as close as reasonably possible to 2 m high along the boundary where the existing fence or wall is that tall. That keeps the effect on a neighbour's garden predictable.

    For splitting a house, the guide is stricter than many. Each new unit must meet minimums of 50 sq m GIA; 11.5 sq m bedroom, and a subdivision is normally refused where more than 20% of street of houses are already subdivided. We count them on your road with the register before quoting. See dormer loft conversion drawings in Thurrock and flat conversion drawings in Thurrock.

    Green belt and the Thames corridor

    About 63 per cent of the borough is green belt. There, the guide limits extensions to the floor area of two reasonably sized rooms of the original dwelling, a measure that bites quickly on a small bungalow.

    Heritage in Thurrock runs from historic buildings to ancient sites: 246 listed buildings, including 13 at Grade I, 17 scheduled monuments and 7 conservation areas. 6 entries are on the Heritage at Risk Register.

    The large number of scheduled monuments means archaeology can reach a householder site. We check the mapped designations at the start so a foundation trench does not become a surprise.

    Decisions and the numbers behind them

    Thurrock decided 363 householder applications in its most recent year, granting 81.5 per cent and deciding 99.2 per cent on time. Fast decisions are a real benefit, and the grant rate is the lower of the two figures, which is a reason to read the guide closely.

    On prior approval for larger rear extensions the council granted 10 and refused 6. It also issued 209 lawful development certificates, the formal route for confirming that work is permitted. Our Lawful Development Certificate service prepares the evidence.

    Past decisions do not tell you what will happen to your own application, so we use them only to decide where to look harder.

    Homes, tenure and prices

    There are 66,377 households in the borough. 76.2 per cent live in a house or bungalow and 63.3 per cent own their home. A detached sale averages £595,588, a terraced sale £319,032 and a flat £189,108, with the overall average moving -0.9 per cent in a year.

    With prices at this level, owners weigh the cost of every square metre carefully, and a fixed fee lets them budget before the build. We also draw for garage conversions and outbuildings that add space inside the coverage allowance.

    Architectural drawings in Thurrock: next steps

    Begin with planning drawings in Thurrock for an extension or garage conversion plans in Thurrock for a conversion. The hubs for Havering, Dartford and Brentwood cover the surrounding area.

    We survey, model the house in Revit and show options in 3D. A technologist who did not draw the set checks it before submission, and the redraws the officer asks for are free.

    What you receive

    Planning drawing sheet for a rear extension with plans, elevations and sections
    Sample drawing. Planning drawings for a rear extension: plans, elevations and sections on one sheet set.
    Upper floors of a large yellow-brick Victorian house in London with chimney pots
    The street around you
    Move across the plinth — the blocks rise around the pointer.

    Questions

    How much of my plot can I build on in Thurrock?

    The guide caps total built coverage by plot size, at 30% (curtilage 100-500 sq m) for plots in the middle band. We calculate your figure before design.

    Can I convert my Thurrock house into flats?

    Possibly. Each unit needs 50 sq m GIA; 11.5 sq m bedroom, and the council normally refuses where more than 20% of street of houses on the street are already subdivided.

    How much do architectural drawings cost in Thurrock?

    Householder planning drawings start at £745, VAT included. The council's own fee is paid to the council.

    Which guidance governs extensions in Thurrock?

    The Thurrock Design Guide: Residential Alterations and Extensions (RAE) SPD, within the Thurrock Design Guide: Design Strategy SPD.

    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.