Orangery and conservatory drawings for Lymington homes — checked against the Class A rear limits and the 30m² building-regulations exemption, drawn to New Forest District Council's guidance and revised free until your decision.
New Forest District Council granted 96% of the householder planning decisions it made in its latest published year — 9 points above the 87% England-wide householder average. Lymington contains Kings Saltern, Lymington conservation areas (Kings Saltern designated 2001), 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) 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. Lymington carries at least one Article 4 direction, and conservation areas including Kings Saltern and Lymington remove those rights outright, so we confirm your exact address before a line is drawn. A validated householder application in Lymington is determined against an 8-week statutory target.
Kings Saltern (conservation area designated in 2001), Lymington (conservation area designated in 1999) and Lymington and Pennington (civil parish within Lymington) — these are the Lymington pockets our drawings cover most. Heritage designations here include Kings Saltern and Lymington. New Forest District Council weighs each proposal against the adopted New Forest local plan and New Forest District Council's design guidance for householder work, where the 4,580 homes here are 18% 1983-1992, 13% 1973-1982, 12% pre-1900, which is what sets the realistic roof and rear-projection options. On roofs the borough is trussed-rafter roofs typical of 1980s building and shallow trussed roofs typical of 1970s building, over 1980s estate houses (18% of 4,580 homes), 1970s and early-1980s houses (13%) and Victorian and earlier houses (12%).
Before anything is drawn we check your address against the designations that apply in Lymington: Kings Saltern (conservation area designated in 2001) and Lymington (conservation area designated in 1999). Inside those boundaries permitted development is curtailed and New Forest 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, Lymington takes in Lymington and Pennington. New Forest District Council has 9 recorded Article 4 directions, removing permitted development for painting the exterior and gates, walls and fences — check the address before assuming PD applies in Lymington.
On stock, Lymington is 1980s estate houses (18% of 4,580 homes), 1970s and early-1980s houses (13%) and Victorian and earlier houses (12%) — which is why trussed-rafter roofs typical of 1980s building and shallow trussed roofs typical of 1970s building govern what a loft or rear projection can realistically be. New Forest District Council decided 531 householder applications in the latest published year and granted 96%, with 80% issued inside the eight-week target. That decision record, not a national figure, is what we design to.
The full build-period split for Lymington runs pre-1900 12% (550 homes), 1900-1918 3% (130 homes), 1919-1929 2% (100 homes), 1930-1939 6% (280 homes), 1945-1954 3% (130 homes), 1955-1964 7% (340 homes), 1965-1972 9% (390 homes), 1973-1982 13% (590 homes), 1983-1992 18% (840 homes), 1993-1999 4% (200 homes) and 2000-2008 10% (450 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.
New Forest District Council also decides for Hythe Central, Marchwood & Eling, Milford & Hordle, Milton and Totton North, so a decision in Lymington 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 ARTICLE 4 DIRECTION 97/1, ARTICLE 4 DIRECTION 97/2, ARTICLE 4 DIRECTION 97/5 and ARTICLE 4 DIRECTION 97/6. 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 Lymington and New Forest 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 | Lymington |
|---|---|
| Dwellings recorded | 4,580 |
| Built pre-1900 | 550 (12%) |
| Built 1900-1918 | 130 (3%) |
| Built 1919-1929 | 100 (2%) |
| Built 1930-1939 | 280 (6%) |
| Built 1945-1954 | 130 (3%) |
| Built 1955-1964 | 340 (7%) |
| Built 1965-1972 | 390 (9%) |
| Built 1973-1982 | 590 (13%) |
| Built 1983-1992 | 840 (18%) |
| Built 1993-1999 | 200 (4%) |
| Built 2000-2008 | 450 (10%) |
| Built before 1919 | 15% |
| Built 1919–1939 | 8% |
| Built 1945–2008 | 64% |
| Conservation areas in Lymington | 2 (Kings Saltern, Lymington) |
| Conservation areas district-wide | 23 |
| Article 4 directions recorded | 9 |
| Householder applications decided | 531 |
| Householder applications granted | 96% |
| Decided within 8 weeks | 80% |
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 New Forest District Council's own, from MHCLG live table PS2 for the year to 31 March 2026.
The difference is not marketing. A conservatory is predominantly glazed — at least three quarters of the roof and half of the walls — which is what earns it the building-regulations exemption. An orangery has a solid masonry perimeter with a glazed lantern set into a flat roof, so it usually reads as a conventional extension for building control and has to meet Part L thermal standards, Part A structure and Part B fire like any other room.
Both are judged the same way for planning: as rear extensions, against the Class A depth, height and eaves limits, and against the adopted New Forest local plan and New Forest District Council's design guidance for householder work. Lymington is largely 1980s estate houses (18% of 4,580 homes), 1970s and early-1980s houses (13%) and Victorian and earlier houses (12%), and the design question is usually whether the glazing reads as a lightweight addition to that stock or as a bolted-on conservatory kit. On period houses, an orangery with a properly proportioned lantern almost always sits better than a full-height glazed box.
In conservation areas such as Kings Saltern and Lymington, rear glazing is assessed on visibility from the street and on the effect on the rear elevation's character. New Forest District Council has 9 recorded Article 4 directions, removing permitted development for painting the exterior and gates, walls and fences — check the address before assuming PD applies in Lymington.
Many conservatories are permitted development. You will need an application to New Forest District Council where any of these apply:
We check the scheme against the Class A planning limits and against the building-regulations exemption at the same time, so you know before committing whether you are building an exempt conservatory or a fully regulated room.
Below is New Forest District Council's real householder decision record, drawn from official planning statistics and refreshed as new data lands. New Forest District Council granted 96% of its householder applications in the year to 31 March 2026, and Kings Saltern shapes what is approved here. Glazed rear additions are judged on depth, eaves height and how the glazing meets the existing elevation.
Source: MHCLG planning application statistics (householder decisions, England, 1 April 2025 - 31 March 2026). Compare every borough on our London approval-rate league table.
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Across Kings Saltern, Lymington and Lymington and Pennington, the schemes that succeed keep the eaves below the neighbour's ground-floor cill line, set the glazing back from the boundary, and use a solid parapet or brick perimeter to tie the addition into the house. On 1980s estate houses (18% of 4,580 homes), a lantern set in a flat roof usually reads better than a pitched glazed roof, and it avoids the summer overheating that makes full conservatories unusable for months a year.
Lymington contains Kings Saltern, Lymington conservation areas (Kings Saltern designated 2001), so materials, fenestration and roof form are assessed against the appraisal. The decision worth making early is whether to keep the separating doors. Keeping them preserves the building-regulations exemption but leaves you with a room that is not part of the house; removing them creates one continuous space but brings the whole addition inside Part L, which changes the glazing specification and usually the heating design too. We set out both versions before you commit.
We draw glazed rear additions across Lymington. A few of the areas where they come up most often:
Orangery and conservatory drawings for Kings Saltern — conservation area designated in 2001 — checked against the Class A limits and drawn to New Forest District Council's guidance.
Orangery and conservatory drawings for Lymington — conservation area designated in 1999 — checked against the Class A limits and drawn to New Forest District Council's guidance.
Orangery and conservatory drawings for Lymington and Pennington — civil parish within Lymington — checked against the Class A limits and drawn to New Forest District Council's guidance.
The planning test is the same for both. The building-regulations test is not.
| Structure | Planning route | Building regulations | Practical effect |
|---|---|---|---|
| Conservatory under 30m², doors retained | Class A rear extension limits | Largely exempt | Cheaper build, unheated in winter |
| Conservatory, doors removed | Class A rear extension limits | Part L applies in full | Continuous space, higher spec glazing |
| Orangery with solid perimeter and lantern | Class A rear extension limits | Fully regulated | Usable year round, better on period houses |
| Any of the above beyond the depth limits | Full householder application | As above | 8-week determination |
| Any of the above on designated land | Full householder application | As above | Design and visibility assessed |
Planning limits from the GPDO 2015, Schedule 2, Part 1, Class A; exemption criteria from the Building Regulations 2010, Schedule 2, Class 7.
A fixed process covering both consents, because they pull in different directions.
Send us your Lymington postcode and house type. We confirm the Class A limits that apply, check designation status, and score your odds against live New Forest District Council decisions.
We measure the rear elevation, eaves and ground levels, and the neighbouring boundary — the numbers that decide both the projection limit and the 2-metre eaves rule.
Chartered designers develop the orangery or conservatory to your brief, and we set out clearly whether it stays inside the building-regulations exemption or becomes a fully regulated room.
We submit the certificate or application, manage validation and officer queries, and revise free until New Forest District Council decides.
Often not. A conservatory is treated as a rear extension, so it can be permitted development within the Class A limits — 3 metres of projection on a terrace or semi, 4 metres on a detached house, with eaves under 3 metres where it sits within 2 metres of a boundary. In Lymington you will need an application to New Forest District Council beyond those limits, and on designated land such as Kings Saltern and Lymington.
A conservatory is largely exempt if it is under 30 square metres, at ground level, separated from the house by external-quality doors, and has at least 75% of its roof and 50% of its walls glazed. Glazing, electrics and any drainage work still have to comply. Remove the separating doors and the exemption falls away — the space becomes part of the house and Part L thermal standards apply. This applies to your Lymington address specifically. New Forest District Council is the decision-maker.
For planning, none — both are rear extensions assessed against the same Class A limits by New Forest District Council. The difference is in building control: an orangery's solid perimeter and flat roof with a lantern usually means it fails the glazing test for exemption, so it is fully regulated. That is why an orangery costs more to build but is comfortable in January. This applies to your Lymington address specifically.
Usually yes at the rear, though permitted-development rights are narrower on designated land and an Article 4 direction can remove them entirely. The assessment turns on whether the addition is visible from the street and how it meets the original rear elevation. A restrained orangery in matching brick with a lantern is consistently easier to get through than a proprietary glazed conservatory. This applies to your Lymington address specifically. New Forest District Council is the decision-maker.
A fully glazed roof will, unless it is specified for it. That is the practical reason most of our clients end up building an orangery instead: a solid insulated roof perimeter with a lantern gives daylight without the greenhouse effect, and keeps the space usable across the year. We raise it at design stage because it is much cheaper to solve on paper than after the build. This applies to your Lymington address specifically. New Forest District Council is the decision-maker.
If you excavate foundations within 3 metres of a neighbouring structure and deeper than its foundations, or build on the boundary itself, the Party Wall etc. Act 1996 applies and notice must be served. That is separate from New Forest District Council's planning decision. We flag it at design stage so the notice period does not delay the start on site. This applies to your Lymington address specifically.
We quote each Lymington orangery or conservatory individually, because the structure and the roof form change the work considerably, and send a fixed, no-obligation quote within one working day. It covers the full drawing pack with free revisions until New Forest District Council approves. Call 020 7864 7245 to start.
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