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House extension plans in Caistor and Yarborough — a glazed single-storey rear extension on a period home
Caistor and Yarborough · House Extension Drawings & Planning

House extension plans in Caistor and Yarborough

Single-storey, double-storey, rear and side extension drawings for Caistor and Yarborough homes — measured to West Lindsey District Council's design guidance, delivered in days and revised free until your decision, with a free approval-odds check before you commit.

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What the data says about planning in Caistor and Yarborough

West Lindsey District Council granted 94% of the householder planning decisions it made in its latest published year — 7 points above the 87% England-wide householder average. Caistor and Yarborough contains Caistor, Great Limber conservation areas (Great Limber designated 1990), so materials, fenestration and roof form are assessed against the appraisal, which is where a policy-literate drawing pack earns its keep. Its dominant Victorian (1837–1901) and postwar (1945–1970) housing stock sets the design brief on most streets.

Class A and Class B set the thresholds — a rear dormer to 40m³ on a terrace or 50m³ on a semi or detached, and a single-storey rear extension to 3m on a terrace or 4m on a detached house — beyond which West Lindsey District Council needs a full application. In conservation areas such as Caistor and Great Limber those rights are removed, so we confirm your exact address before a line is drawn. A validated householder application in Caistor and Yarborough is determined against an 8-week statutory target.

Caistor (designated conservation area), Great Limber (conservation area designated in 1990), Brocklesby (civil parish within Caistor and Yarborough), Cabourne (civil parish within Caistor and Yarborough), Caistor (civil parish within Caistor and Yarborough), Great Limber (civil parish within Caistor and Yarborough), Keelby (civil parish within Caistor and Yarborough) and Riby (civil parish within Caistor and Yarborough) — these are the Caistor and Yarborough pockets our drawings cover most. Heritage designations here include Caistor and Great Limber. West Lindsey District Council weighs each proposal against West Lindsey District Council's development plan and the design policies it applies to householder applications, where the 2,900 homes here are 17% pre-1900, 16% 1973-1982, 16% 1965-1972, which is what sets the realistic roof and rear-projection options. On roofs the borough is steeply pitched slate roofs, valley gutters and party parapets typical of pre-1900 building and shallow trussed roofs typical of 1970s building, over Victorian and earlier houses (17% of 2,900 homes), 1970s and early-1980s houses (16%) and late-1960s and early-1970s houses (16%).

Designations, stock and decisions in Caistor and Yarborough

Heritage designation is the single biggest variable in Caistor and Yarborough, and it is address-specific: Caistor (designated conservation area) and Great Limber (conservation area designated in 1990). Inside those boundaries permitted development is curtailed and West Lindsey District Council assesses materials, window detail and roof form against the area's own appraisal, so a scheme that would be waved through two streets away can need a full application here.

Beyond the designated areas, Caistor and Yarborough takes in Brocklesby, Cabourne, Caistor, Great Limber, Keelby and Riby. No Article 4 direction is recorded for West Lindsey District Council, but Caistor and Yarborough's 2 conservation areas still limit permitted development on those streets.

On stock, Caistor and Yarborough is Victorian and earlier houses (17% of 2,900 homes), 1970s and early-1980s houses (16%) and late-1960s and early-1970s houses (16%) — which is why steeply pitched slate roofs, valley gutters and party parapets typical of pre-1900 building and shallow trussed roofs typical of 1970s building govern what a loft or rear projection can realistically be. West Lindsey District Council decided 260 householder applications in the latest published year and granted 94%, with 72% issued inside the eight-week target. We work from the council's own published record.

The full build-period split for Caistor and Yarborough runs pre-1900 17% (500 homes), 1900-1918 3% (90 homes), 1919-1929 3% (80 homes), 1930-1939 4% (120 homes), 1945-1954 5% (150 homes), 1955-1964 6% (160 homes), 1965-1972 16% (450 homes), 1973-1982 16% (470 homes), 1983-1992 11% (320 homes), 1993-1999 3% (100 homes) and 2000-2008 3% (80 homes). That distribution is why pre-1900 detailing dominates the drawings here, and it is measured from council-tax records rather than assumed from the street name.

West Lindsey District Council also decides for Cherry Willingham, Dunholme and Welton, Hemswell, Market Rasen, Nettleham, Saxilby, Scampton and Scotter and Blyton, so a decision in Caistor and Yarborough sits inside a wider pattern of decisions we track across the same authority — useful when an officer cites a precedent from the next area over.

The published numbers behind a Caistor and Yarborough application

Published figures for Caistor and Yarborough and West Lindsey District Council. These are the numbers that decide what is realistic on your street, so we work from them rather than from national averages.

MeasureCaistor and Yarborough
Dwellings recorded2,900
Built pre-1900500 (17%)
Built 1900-191890 (3%)
Built 1919-192980 (3%)
Built 1930-1939120 (4%)
Built 1945-1954150 (5%)
Built 1955-1964160 (6%)
Built 1965-1972450 (16%)
Built 1973-1982470 (16%)
Built 1983-1992320 (11%)
Built 1993-1999100 (3%)
Built 2000-200880 (3%)
Built before 191920%
Built 1919–19397%
Built 1945–200860%
Conservation areas in Caistor and Yarborough2 (Caistor, Great Limber)
Conservation areas district-wide25
Article 4 directions recorded0
Householder applications decided260
Householder applications granted94%
Decided within 8 weeks72%

Dwelling stock from VOA council-tax data at 31 March 2025; conservation-area and Article 4 counts from planning.data.gov.uk (MHCLG); decision figures are West Lindsey District Council's own, from MHCLG live table PS2 for the year to 31 March 2026.

Extension plans built around West Lindsey District Council's rules

Caistor and Yarborough homes come in a handful of recurring shapes, and each one points to a different extension. The borough is built largely from Victorian and earlier houses (17% of 2,900 homes), 1970s and early-1980s houses (16%) and late-1960s and early-1970s houses (16%), so a Victorian terrace usually wants a rear or side-return infill, while an interwar semi has room for a wider single-storey wrap or a two-storey side addition. West Lindsey District Council judges every one of them against West Lindsey District Council's development plan and the design policies it applies to householder applications, weighing footprint, height and the impact on the house next door before it looks at the elevations.

That is why the drawings decide the outcome. We set the extension depth against the permitted-development limits precisely, keep the eaves and ridge within the allowances, and plot the 45-degree daylight lines to the neighbours' windows so the case officer can see the amenity test is passed. Caistor and Yarborough contains Caistor, Great Limber conservation areas (Great Limber designated 1990), so materials, fenestration and roof form are assessed against the appraisal, so we design around it from the first sketch rather than discover it at validation.

Caistor and Yarborough also protects whole streets — Caistor and Great Limber among them. No Article 4 direction is recorded for West Lindsey District Council, but Caistor and Yarborough's 2 conservation areas still limit permitted development on those streets. On designated land the larger-home extension route and most side extensions stop being permitted development, so we confirm your address against those layers before drawing a line.

Isometric house extension drawing for a Caistor and Yarborough home

Do I need planning permission to extend my house in Caistor and Yarborough?

Plenty of Caistor and Yarborough extensions are permitted development and need no planning application — a single-storey rear extension within the depth and height limits is the common case. You will normally need to apply to West Lindsey District Council if any of these apply:

  • The single-storey rear extension is deeper than 3 metres on a terrace or semi, or 4 metres on a detached house (6m/8m needs prior approval under the larger-home scheme)
  • It is a two-storey or double-storey extension, or the rear extension is higher than 4 metres
  • A side extension is wider than half the original house, or more than one storey
  • Any part projects forward of the principal (front) elevation, or the extension covers more than half the garden
  • Your home is in a conservation area such as Caistor and Great Limber, where the larger-home route and side extensions are not permitted development

Caistor and Yarborough extension approval rates — live from council data

Below is West Lindsey District Council's real householder decision record, drawn from official planning statistics and refreshed as new data lands. West Lindsey District Council granted 94% of its householder applications in the year to 31 March 2026, and Caistor shapes what is approved here. A complete, policy-literate extension pack anticipates those pressure points before submission, which is why professionally drawn applications are decided faster and refused less often than DIY ones.

Source: MHCLG planning application statistics (householder decisions, England, 1 April 2025 - 31 March 2026). Compare every borough on our London approval-rate league table.

94%householder applications approved in West Lindsey
87%national average — West Lindsey is 7 points above the national average

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Which extensions get approved in Caistor and Yarborough

Across Caistor, Great Limber and Brocklesby, the extension that lands most often is the single-storey rear addition — a glazed kitchen-diner across the back of the house, kept within the permitted-development depth or taken to a full application where the ground floor wants more. On the borough's victorian and earlier houses (17% of 2,900 homes), a side-return infill frequently pairs with it to square off the plan; on wider late-1960s and early-1970s houses (16%), a two-storey side or rear extension can add a bedroom above without swallowing the garden.

The 2,900 homes here are 17% pre-1900, 16% 1973-1982, 16% 1965-1972, which is what sets the realistic roof and rear-projection options. We size the extension to the amenity and daylight tests, match the roof and materials to the host house, and keep enough garden to satisfy West Lindsey District Council's space standards — so the scheme answers the borough's questions before an objection can raise them. Where permitted-development rights are used up or removed, we prepare the householder application to the council's extension design guidance instead.

Single-storey rear extension opening onto the garden of a Caistor and Yarborough house

House extensions across Caistor and Yarborough

We draw extensions on every street in the borough. A few of the neighbourhoods where Caistor and Yarborough projects come up most often:

Caistor

Extension drawings for Caistor's designated conservation area — footprint-checked, daylight-tested and drawn to West Lindsey District Council's guidance.

Great Limber

Extension drawings for Great Limber's conservation area designated in 1990 — footprint-checked, daylight-tested and drawn to West Lindsey District Council's guidance.

Brocklesby

Extension drawings for Brocklesby's civil parish within Caistor and Yarborough — footprint-checked, daylight-tested and drawn to West Lindsey District Council's guidance.

Cabourne

Extension drawings for Cabourne's civil parish within Caistor and Yarborough — footprint-checked, daylight-tested and drawn to West Lindsey District Council's guidance.

Caistor

Extension drawings for Caistor's civil parish within Caistor and Yarborough — footprint-checked, daylight-tested and drawn to West Lindsey District Council's guidance.

Great Limber

Extension drawings for Great Limber's civil parish within Caistor and Yarborough — footprint-checked, daylight-tested and drawn to West Lindsey District Council's guidance.

Which extension suits your Caistor and Yarborough home?

The right extension in Caistor and Yarborough depends on your house type and how much garden you can give up. This is how the main options compare on planning route and what they add.

Extension typePermitted development?What it addsWhat West Lindsey District Council checks
Single-storey rearOften, within 3m/4m depth (6m/8m via prior approval)Bigger kitchen-diner across the backDepth, height, neighbour daylight (45°)
Side-return infillSometimes, if within width and height limitsSquares off an L-shaped ground floorWidth vs the original house, glazing to boundary
Two-storey rear/sideNo — full applicationExtra bedroom or bathroom aboveBulk, overlooking, 7m rear-boundary gap
Wraparound (rear + side)No — full applicationWhole-width open-plan ground floorCombined footprint and garden retained

Route depends on your street — conservation areas such as Caistor and Great Limber and Article 4 directions can remove permitted-development rights.

Four steps to an approved Caistor and Yarborough extension

A fixed process built around how West Lindsey District Council validates and decides householder extension applications — most drawings are submission-ready within seven days of survey.

  1. 1

    Free approval check

    Tell us your Caistor and Yarborough postcode and house type. We confirm your conservation and Article 4 status, how much permitted-development depth you have left, and score your odds against live West Lindsey District Council decisions.

  2. 2

    Measured survey

    We measure the existing footprint, floor and eaves levels, boundary distances and the neighbours' window positions — the numbers the depth limits and daylight tests depend on.

  3. 3

    Extension design & drawings

    Chartered designers develop the single-storey, two-storey or side extension to your brief, drawn inside the permitted-development limits or to West Lindsey District Council's extension design guidance.

  4. 4

    Submission & follow-through

    We submit the certificate, prior-approval notice or application, manage validation and case-officer queries, and revise the drawings free until West Lindsey District Council issues its decision.

Frequently asked questions

Do I need planning permission to extend my house in Caistor and Yarborough?

Not always. A single-storey rear extension up to 3 metres deep on a terrace or semi, or 4 metres on a detached house, and no higher than 4 metres, is usually permitted development. In Caistor and Yarborough you will need to apply to West Lindsey District Council for two-storey extensions, side extensions wider than half the house, anything forward of the front wall, deeper rear extensions under the larger-home prior-approval route, and any extension in a conservation area such as Caistor and Great Limber.

How deep can a single-storey rear extension go in Caistor and Yarborough without planning permission?

Standard permitted development allows 3 metres on a terraced or semi-detached house and 4 metres on a detached one. The larger-home extension scheme can double that to 6 or 8 metres, but it needs a prior-approval notification to West Lindsey District Council and a neighbour-consultation period, and it does not apply on designated land such as Caistor and Yarborough's conservation areas. We confirm which route your property qualifies for before drawing.

Can I build a double-storey extension in Caistor and Yarborough?

Two-storey and double-storey extensions almost always need a full householder application to West Lindsey District Council, because they fall outside permitted development on most homes. The council looks closely at bulk, overlooking of neighbours and the 7-metre gap a two-storey rear extension must keep from the rear boundary. We design to those tests and show the daylight and privacy angles on the drawings. This applies to your Caistor and Yarborough address specifically.

How long does West Lindsey District Council take to decide an extension application?

A householder planning application in Caistor and Yarborough runs to a statutory eight-week target, a larger-home prior-approval notification to around six weeks including the neighbour-consultation period, and a lawful development certificate to eight weeks. Incomplete submissions stall at validation, so we submit a complete pack and manage officer queries to keep the decision on schedule. West Lindsey District Council is the decision-maker.

Will my extension in Caistor and Yarborough need building regulations approval as well as planning?

Yes — planning permission and building regulations are separate consents, and almost every extension needs both. Planning governs whether you can build it; building control governs how it is built, covering structure, insulation, drainage and fire safety. We prepare the building-regulations drawings alongside the planning set so West Lindsey District Council's building control or an approved inspector can sign the work off. This applies to your Caistor and Yarborough address specifically.

How much do extension plans in Caistor and Yarborough cost?

Every house and brief is different, so we price each Caistor and Yarborough extension individually and send a fixed, no-obligation quote back within one working day. It covers the full drawing pack with free revisions until West Lindsey District Council approves, and we tell you upfront whether your extension qualifies as permitted development. Call 020 7864 7245 to get started.

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