Single-storey, double-storey, rear and side extension drawings for Bush Fair homes — measured to Harlow District Council's design guidance, delivered in days and revised free until your decision, with a free approval-odds check before you commit.
Harlow District Council granted 79% of the householder planning decisions it made in its latest published year — 8 points below the 87% England-wide householder average. Bush Fair contains Netteswellbury, Puffers Green, Tye Green conservation areas (Netteswellbury designated 1986), so materials, fenestration and roof form are assessed against the appraisal, which is where a policy-literate drawing pack earns its keep. Its dominant postwar (1945–1970) housing stock sets the design brief on most streets.
The permitted-development ceilings are fixed: 40m³ of new roof volume for a terraced loft and 50m³ for a semi or detached house under Class B, plus a 3m single-storey rear extension on a terrace or 4m on a detached house under Class A. Bush Fair carries at least one Article 4 direction, and conservation areas including Netteswellbury, Puffers Green and Tye Green remove those rights outright, so we confirm your exact address before a line is drawn. A validated householder application in Bush Fair is determined against an 8-week statutory target.
Netteswellbury (conservation area designated in 1986), Puffers Green (conservation area designated in 1995) and Tye Green (conservation area designated in 1999) — these are the Bush Fair pockets our drawings cover most. Heritage designations here include Netteswellbury, Puffers Green and Tye Green. Harlow District Council weighs each proposal against the adopted Harlow local plan and Harlow District Council's design guidance for householder work, where the 4,010 homes here are 72% 1955-1964, 12% 1965-1972, 7% 1945-1954, which is what sets the realistic roof and rear-projection options. On roofs the borough is shallow gabled roofs typical of that period's building and shallow-pitched roofs and integral garages typical of that period's building, over late-1950s and early-1960s houses (72% of 4,010 homes), late-1960s and early-1970s houses (12%) and early postwar houses (7%).
Before anything is drawn we check your address against the designations that apply in Bush Fair: Netteswellbury (conservation area designated in 1986), Puffers Green (conservation area designated in 1995) and Tye Green (conservation area designated in 1999). Inside those boundaries permitted development is curtailed and Harlow 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.
Harlow District Council has 14 recorded Article 4 directions, removing permitted development for rear and side extensions and other roof alterations, including rooflights — check the address before assuming PD applies in Bush Fair.
On stock, Bush Fair is late-1950s and early-1960s houses (72% of 4,010 homes), late-1960s and early-1970s houses (12%) and early postwar houses (7%) — which is why shallow gabled roofs typical of that period's building and shallow-pitched roofs and integral garages typical of that period's building govern what a loft or rear projection can realistically be. Harlow District Council decided 149 householder applications in the latest published year and granted 79%, with 67% issued inside the eight-week target. That decision record, not a national figure, is what we design to.
The full build-period split for Bush Fair runs pre-1900 0% (10 homes), 1945-1954 7% (300 homes), 1955-1964 72% (2,900 homes), 1965-1972 12% (500 homes), 1973-1982 2% (100 homes), 1983-1992 1% (50 homes), 1993-1999 1% (50 homes) and 2000-2008 1% (30 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.
Harlow District Council also decides for Mark Hall and Old Harlow, so a decision in Bush Fair 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 Article 4 directions recorded for this council include 1 to 56 Morley Grove, 57 to 99 Morley Grove, Churchgate Street and Field House and Goodman House (Burnt Mill Industrial Estate). Each removes a specific permitted-development right inside its own boundary, which is why the check is done on the address rather than on the town.
Published figures for Bush Fair and Harlow District Council. These are the numbers that decide what is realistic on your street, so we work from them rather than from national averages.
| Measure | Bush Fair |
|---|---|
| Dwellings recorded | 4,010 |
| Built pre-1900 | 10 (0%) |
| Built 1945-1954 | 300 (7%) |
| Built 1955-1964 | 2,900 (72%) |
| Built 1965-1972 | 500 (12%) |
| Built 1973-1982 | 100 (2%) |
| Built 1983-1992 | 50 (1%) |
| Built 1993-1999 | 50 (1%) |
| Built 2000-2008 | 30 (1%) |
| Built before 1919 | 0% |
| Built 1919–1939 | 0% |
| Built 1945–2008 | 98% |
| Conservation areas in Bush Fair | 3 (Netteswellbury, Puffers Green…) |
| Conservation areas district-wide | 10 |
| Article 4 directions recorded | 14 |
| Householder applications decided | 149 |
| Householder applications granted | 79% |
| Decided within 8 weeks | 67% |
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 Harlow District Council's own, from MHCLG live table PS2 for the year to 31 March 2026.
Bush Fair homes come in a handful of recurring shapes, and each one points to a different extension. The borough is built largely from late-1950s and early-1960s houses (72% of 4,010 homes), late-1960s and early-1970s houses (12%) and early postwar houses (7%), 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. Harlow District Council judges every one of them against the adopted Harlow local plan and Harlow District Council's design guidance for householder work, 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. Bush Fair contains Netteswellbury, Puffers Green, Tye Green conservation areas (Netteswellbury designated 1986), 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.
Bush Fair also protects whole streets — Netteswellbury, Puffers Green and Tye Green among them. Harlow District Council has 14 recorded Article 4 directions, removing permitted development for rear and side extensions and other roof alterations, including rooflights — check the address before assuming PD applies in Bush Fair. 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.
Plenty of Bush Fair 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 Harlow District Council if any of these apply:
We draw the footprint, the ridge and eaves heights and the neighbours' daylight on the page — the relationships Harlow District Council's officers weigh first — and submit a validation-complete pack, whether that is a lawful development certificate, a prior-approval notification or a full householder application.
Below is Harlow District Council's real householder decision record, drawn from official planning statistics and refreshed as new data lands. Harlow District Council granted 79% of its householder applications in the year to 31 March 2026, and Netteswellbury 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.
Tell us about your project and get a fixed, no-obligation quote back within one working day. If you don't need planning permission at all, we'll tell you that too — for free.
Across Netteswellbury, Puffers Green and Tye Green, 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 late-1950s and early-1960s houses (72% of 4,010 homes), a side-return infill frequently pairs with it to square off the plan; on wider early postwar houses (7%), a two-storey side or rear extension can add a bedroom above without swallowing the garden.
The 4,010 homes here are 72% 1955-1964, 12% 1965-1972, 7% 1945-1954, 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 Harlow 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.
We draw extensions on every street in the borough. A few of the neighbourhoods where Bush Fair projects come up most often:
Extension drawings for Netteswellbury's conservation area designated in 1986 — footprint-checked, daylight-tested and drawn to Harlow District Council's guidance.
Extension drawings for Puffers Green's conservation area designated in 1995 — footprint-checked, daylight-tested and drawn to Harlow District Council's guidance.
Extension drawings for Tye Green's conservation area designated in 1999 — footprint-checked, daylight-tested and drawn to Harlow District Council's guidance.
The right extension in Bush Fair 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 type | Permitted development? | What it adds | What Harlow District Council checks |
|---|---|---|---|
| Single-storey rear | Often, within 3m/4m depth (6m/8m via prior approval) | Bigger kitchen-diner across the back | Depth, height, neighbour daylight (45°) |
| Side-return infill | Sometimes, if within width and height limits | Squares off an L-shaped ground floor | Width vs the original house, glazing to boundary |
| Two-storey rear/side | No — full application | Extra bedroom or bathroom above | Bulk, overlooking, 7m rear-boundary gap |
| Wraparound (rear + side) | No — full application | Whole-width open-plan ground floor | Combined footprint and garden retained |
Route depends on your street — conservation areas such as Netteswellbury and Puffers Green and Article 4 directions can remove permitted-development rights.
A fixed process built around how Harlow District Council validates and decides householder extension applications — most drawings are submission-ready within seven days of survey.
Tell us your Bush Fair 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 Harlow District Council decisions.
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.
Chartered designers develop the single-storey, two-storey or side extension to your brief, drawn inside the permitted-development limits or to Harlow District Council's extension design guidance.
We submit the certificate, prior-approval notice or application, manage validation and case-officer queries, and revise the drawings free until Harlow District Council issues its decision.
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 Bush Fair you will need to apply to Harlow 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 Netteswellbury and Puffers Green.
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 Harlow District Council and a neighbour-consultation period, and it does not apply on designated land such as Bush Fair's conservation areas. We confirm which route your property qualifies for before drawing.
Two-storey and double-storey extensions almost always need a full householder application to Harlow 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 Bush Fair address specifically.
A householder planning application in Bush Fair 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. Harlow District Council is the decision-maker.
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 Harlow District Council's building control or an approved inspector can sign the work off. This applies to your Bush Fair address specifically.
Every house and brief is different, so we price each Bush Fair extension individually and send a fixed, no-obligation quote back within one working day. It covers the full drawing pack with free revisions until Harlow 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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