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Side return extension plans in Broadstone — a glazed side-return infill opening up a period kitchen
Broadstone · Side Return Extension Drawings & Planning

Side return extension plans in Broadstone

Side-return infill drawings for Broadstone terraces — the glazed extension that fills the redundant side alley and opens up the kitchen, drawn to Bournemouth, Christchurch and Poole Council's guidance, delivered in days and revised free until your decision, with a free approval-odds check first.

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Broadstone planning decisions and design rules

Bournemouth, Christchurch and Poole Council granted 88% of the householder planning decisions it made in its latest published year — 1 point above the 87% England-wide householder average. Broadstone contains Ridgeway and Broadstone Park, Tudor Road and Golf Links Road conservation areas, 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.

Before permission is required, Class B allows 40m³ of added loft volume on a terrace and 50m³ on a semi or detached house, and Class A allows a 3m single-storey rear extension on a terrace or 4m on a detached house. In conservation areas such as Ridgeway and Broadstone Park and Tudor Road and Golf Links Road those rights are removed, so we confirm your exact address before a line is drawn. A validated householder application in Broadstone is determined against an 8-week statutory target.

Ridgeway and Broadstone Park (designated conservation area) and Tudor Road and Golf Links Road (designated conservation area) — these are the Broadstone pockets our drawings cover most. Heritage designations here include Ridgeway and Broadstone Park and Tudor Road and Golf Links Road. Bournemouth, Christchurch and Poole Council weighs each proposal against the adopted Bournemouth, Christchurch and Poole local plan and Bournemouth, Christchurch and Poole Council's design guidance for householder work, where the 4,400 homes here are 21% 1965-1972, 20% 1955-1964, 14% 1973-1982, which is what sets the realistic roof and rear-projection options. On roofs the borough is shallow-pitched roofs and integral garages typical of that period's building and shallow gabled roofs typical of that period's building, over late-1960s and early-1970s houses (21% of 4,400 homes), late-1950s and early-1960s houses (20%) and 1970s and early-1980s houses (14%).

Why a Broadstone scheme is judged on Broadstone terms

What is permitted in Broadstone turns on designation first, so that is where we start: Ridgeway and Broadstone Park (designated conservation area) and Tudor Road and Golf Links Road (designated conservation area). Inside those boundaries permitted development is curtailed and Bournemouth, Christchurch and Poole 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.

No Article 4 direction is recorded for Bournemouth, Christchurch and Poole Council, but Broadstone's 2 conservation areas still limit permitted development on those streets.

On stock, Broadstone is late-1960s and early-1970s houses (21% of 4,400 homes), late-1950s and early-1960s houses (20%) and 1970s and early-1980s houses (14%) — which is why shallow-pitched roofs and integral garages typical of that period's building and shallow gabled roofs typical of that period's building govern what a loft or rear projection can realistically be. Bournemouth, Christchurch and Poole Council decided 1,206 householder applications in the latest published year and granted 88%, with 44% issued inside the eight-week target. We draw to that record rather than to a national average.

The full build-period split for Broadstone runs pre-1900 3% (120 homes), 1900-1918 2% (80 homes), 1919-1929 2% (100 homes), 1930-1939 6% (280 homes), 1945-1954 3% (140 homes), 1955-1964 20% (890 homes), 1965-1972 21% (940 homes), 1973-1982 14% (600 homes), 1983-1992 13% (580 homes), 1993-1999 9% (390 homes) and 2000-2008 3% (130 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.

Bournemouth, Christchurch and Poole Council also decides for Bearwood & Merley, Boscombe West, Bournemouth Central, Burton & Grange, Canford Cliffs, Christchurch Town, Commons and Highcliffe & Walkford, so a decision in Broadstone 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.

Broadstone by the published data

Published figures for Broadstone and Bournemouth, Christchurch and Poole Council. These are the numbers that decide what is realistic on your street, so we work from them rather than from national averages.

MeasureBroadstone
Dwellings recorded4,400
Built pre-1900120 (3%)
Built 1900-191880 (2%)
Built 1919-1929100 (2%)
Built 1930-1939280 (6%)
Built 1945-1954140 (3%)
Built 1955-1964890 (20%)
Built 1965-1972940 (21%)
Built 1973-1982600 (14%)
Built 1983-1992580 (13%)
Built 1993-1999390 (9%)
Built 2000-2008130 (3%)
Built before 19195%
Built 1919–19399%
Built 1945–200883%
Conservation areas in Broadstone2 (Ridgeway and Broadstone Park, Tudor Road and Golf Links Road)
Conservation areas district-wide48
Article 4 directions recorded0
Householder applications decided1,206
Householder applications granted88%
Decided within 8 weeks44%

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 Bournemouth, Christchurch and Poole Council's own, from MHCLG live table PS2 for the year to 31 March 2026.

Side returns drawn for Broadstone's period terraces

The side return is the classic terrace fix, and Broadstone has the stock for it — the borough is built largely from late-1960s and early-1970s houses (21% of 4,400 homes), late-1950s and early-1960s houses (20%) and 1970s and early-1980s houses (14%), and the Victorian and Edwardian versions almost all have an L-shaped back addition with a wasted alley beside it. Fill that alley and the dark galley kitchen becomes a bright, square room the full width of the house. Bournemouth, Christchurch and Poole Council judges the infill against the adopted Bournemouth, Christchurch and Poole local plan and Bournemouth, Christchurch and Poole Council's design guidance for householder work, and because it runs along the party boundary, the neighbour relationship is read before the design.

That boundary is where the drawings earn their keep. We set the infill wall on or up to the line, keep the roof — usually a glazed lantern or a shallow pitch tying into the existing back-addition slope — below the neighbour's first-floor windows, and detail the rainwater and party-wall junction so the build is watertight and the Party Wall Act is satisfied. Broadstone contains Ridgeway and Broadstone Park, Tudor Road and Golf Links Road conservation areas, so materials, fenestration and roof form are assessed against the appraisal, so we resolve it on the section rather than leave it to the case officer.

Many of Broadstone's terraces sit in conservation areas — Ridgeway and Broadstone Park and Tudor Road and Golf Links Road among them — where a side extension is no longer permitted development. No Article 4 direction is recorded for Bournemouth, Christchurch and Poole Council, but Broadstone's 2 conservation areas still limit permitted development on those streets. We confirm the designation before a line is drawn.

Isometric side return extension drawing for a Broadstone terrace

Does a side return extension need planning permission in Broadstone?

Some single-storey side returns in Broadstone are permitted development, but the width and boundary make an application more likely than for a straight rear extension. You will normally need to apply to Bournemouth, Christchurch and Poole Council if any of these apply:

  • The side extension is wider than half the width of the original house
  • It is more than one storey, or higher than 4 metres (or higher than the eaves along the side)
  • The property is on designated land — side extensions are not permitted development in conservation areas
  • You are combining the side return with a rear extension beyond 3 metres, which reads as a wraparound
  • Your terrace is in a conservation area such as Ridgeway and Broadstone Park and Tudor Road and Golf Links Road, where side-extension rights are removed

Broadstone side return approval rates — live from council data

Below is Bournemouth, Christchurch and Poole Council's real householder decision record, drawn from official planning statistics and refreshed as new data lands. Bournemouth, Christchurch and Poole Council granted 88% of its householder applications in the year to 31 March 2026, and Ridgeway and Broadstone Park shapes what is approved here. Side returns hinge on width, roof glazing and the party boundary, so a pack that resolves those details upfront is decided faster and refused less often than a DIY submission.

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

88%householder applications approved in Bournemouth, Christchurch and Poole
87%national average — Bournemouth, Christchurch and Poole is 1 point above the national average

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What side return extensions get approved in Broadstone

Across Ridgeway and Broadstone Park and Tudor Road and Golf Links Road, the approved side return is a single-storey infill roofed with a glazed lantern or roof light to pull daylight deep into the plan, its flank wall built on the boundary and finished to match the host brick. On the borough's late-1960s and early-1970s houses (21% of 4,400 homes), this is frequently the single biggest gain in usable ground-floor space, and where it stays within the width and height limits it can proceed under permitted development or a lawful development certificate.

The 4,400 homes here are 21% 1965-1972, 20% 1955-1964, 14% 1973-1982, which is what sets the realistic roof and rear-projection options. We keep the glazed roof below the neighbour's cill line, set the gutter and the party-wall flashing so water and maintenance are designed in, and — where owners want the full open-plan room — pair the infill with a rear extension as a single wraparound application. That way Bournemouth, Christchurch and Poole Council sees one coherent scheme rather than two overlapping ones.

Side return extension squaring off the ground floor of a Broadstone terrace

Side return extensions across Broadstone

We draw side-return infills on every terraced street in the borough. A few of the neighbourhoods where Broadstone side returns come up most often:

Ridgeway and Broadstone Park

Side return extension drawings for Ridgeway and Broadstone Park's designated conservation area — width-checked, party-wall detailed and drawn to Bournemouth, Christchurch and Poole Council's guidance.

Tudor Road and Golf Links Road

Side return extension drawings for Tudor Road and Golf Links Road's designated conservation area — width-checked, party-wall detailed and drawn to Bournemouth, Christchurch and Poole Council's guidance.

Is your Broadstone side return permitted development or a full application?

Whether a side return in Broadstone needs permission comes down to width, storeys and whether the street is designated. This is how the cases compare.

Side return typePermitted development?What it gainsWhat Bournemouth, Christchurch and Poole Council checks
Single-storey infill, within limitsOften yes, if under half the house widthFull-width kitchen-dinerWidth, 4m height, roof glazing
Single-storey, over half widthNo — full applicationWider room, more lightBoundary treatment, neighbour amenity
Two-storey side returnNo — full applicationRoom above as well as belowBulk, overlooking, terrace rhythm
Wraparound (side + rear)No — full applicationL-shaped open-plan ground floorCombined footprint, garden retained

In conservation areas such as Ridgeway and Broadstone Park and Tudor Road and Golf Links Road, side extensions are not permitted development and always need a full application.

Four steps to an approved Broadstone side return

A fixed process built around how Bournemouth, Christchurch and Poole Council validates and decides side-return applications — most drawings are submission-ready within seven days of survey.

  1. 1

    Free approval check

    Send us your Broadstone postcode and terrace type. We confirm your conservation and Article 4 status, whether the infill stays within the side-extension width limit, and score your odds against live Bournemouth, Christchurch and Poole Council decisions.

  2. 2

    Measured survey

    We measure the side alley, the back-addition wall, floor and eaves levels and the neighbour's window heights — the numbers the width limit, roof pitch and party-wall detailing depend on.

  3. 3

    Side return design & drawings

    Chartered designers develop the infill and its glazed roof to your brief, drawn inside the permitted-development limits or to Bournemouth, Christchurch and Poole Council's extension guidance, with the boundary and party-wall junction detailed.

  4. 4

    Submission & follow-through

    We submit the certificate or application, manage validation and case-officer queries, and revise the drawings free until Bournemouth, Christchurch and Poole Council issues its decision.

Frequently asked questions

Does a side return extension need planning permission in Broadstone?

Sometimes not. A single-storey side-return infill can be permitted development if it is no wider than half the original house, no higher than 4 metres, and the property is not on designated land. In Broadstone you will need a full application to Bournemouth, Christchurch and Poole Council for anything wider or taller, for a two-storey side return, and for any side extension in a conservation area such as Ridgeway and Broadstone Park and Tudor Road and Golf Links Road, where those rights are removed.

What is a side return extension on a Broadstone terrace?

It is an infill that fills the narrow open alley running alongside the rear back-addition of a Victorian or Edwardian terrace — the strip of ground that is usually too small to use. Building over it squares off the ground floor, so a cramped galley kitchen becomes a full-width room. Broadstone's period terraces are ideally suited to it, which is why the side return is one of the borough's most common extensions. Bournemouth, Christchurch and Poole Council is the decision-maker.

Do I need a party wall agreement for a side return in Broadstone?

Almost always. A side return is built on or up to the boundary with your neighbour, so the Party Wall etc. Act applies and you must serve notice before work starts — this is entirely separate from Bournemouth, Christchurch and Poole Council's planning decision. We detail the party-wall junction on the drawings and flag the notice early so a surveyor can be appointed without delaying the build. This applies to your Broadstone address specifically.

Can I combine a side return with a rear extension in Broadstone?

Yes, and it is common — the combined L-shape is a wraparound extension. Once the side infill joins a rear projection beyond the permitted-development depth, the whole thing needs a full householder application to Bournemouth, Christchurch and Poole Council rather than qualifying as permitted development. We draw it as one coherent scheme so the council assesses a single footprint, which reads more clearly than two overlapping proposals. This applies to your Broadstone address specifically.

How long does Bournemouth, Christchurch and Poole Council take to decide a side return application?

A householder planning application in Broadstone runs to a statutory eight-week target, and a lawful development certificate to eight weeks as well, though an incomplete pack can stall at validation. Because a side return involves the boundary and roof glazing, a complete, well-detailed submission matters — we prepare it validation-complete and manage officer queries to keep the decision on track. Bournemouth, Christchurch and Poole Council is the decision-maker.

How much do side return extension plans in Broadstone cost?

We price each Broadstone side return individually, because alley width and roof form vary house to house, and send a fixed, no-obligation quote within one working day. It covers the full drawing pack with free revisions until Bournemouth, Christchurch and Poole Council approves, and we confirm at the outset whether your infill is permitted development or needs an application. Call 020 7864 7245 to start.

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