Backland Development
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Building on a corner plot or side garden in Portsmouth

If your house in Portsmouth sits on a corner, or has a side garden much wider than its neighbours’, there may be room for a new home beside it. A home there would normally face the street with a frontage of its own. Planners call that infill, not backland, and it tends to make access and privacy simpler to resolve.

A free appraisal will tell you whether it’s realistic. Should the answer be yes, there are two paths: sell the plot while you stay in your home, or hold on to it and let us handle the design, the planning application and the build. Backland Development is new, part of the S&K Group, and if your plot isn’t right we’ll say so.

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New detached brick house on a corner plot beside an older semi-detached house
Planning authority
Portsmouth City Council
Postcodes
PO1, PO2, PO3, PO4, PO5
Noon sun, 21 March
About 39°
Shadow from a 5 m eaves line
About 6.1 m
Planning plan
Local Plan
County
Hampshire

Before you decide in Portsmouth

Light is a real test on side plots because the new home sits so close to existing ones. In midwinter the noon sun in Portsmouth is only around 16° above the horizon, so even a modest roof can shade a neighbour’s side windows or garden for long periods.

Councils, including Portsmouth City Council, look at daylight and sunlight to existing homes when deciding applications. A lower eaves line, a hipped roof or a slightly wider gap at the side can make the difference, and we test those options before the drawings are finalised.

Section showing noon sun and shadows in Portsmouth: about 39 degrees on 21 March and 16 degrees on 21 December21 m21 Mar, noon: sun 39°, shadow 6.1 m21 Dec, noon: sun 16°, shadow 17.7 mExistingNew home
Noon sun in Portsmouth on 21 March sits about 39° above the horizon, so a typical two-storey eaves line (about 5 m) throws a shadow of roughly 6.1 m. In December the sun is only about 16° up and shadows stretch much further. Drawn for a garden facing north, where it matters most.

The next steps, locally

Give us your Portsmouth address and a sense of what you’re hoping for. Our desktop review covers the policies Portsmouth City Council works to, recent applications on nearby side and corner plots, and anything in your title that might restrict building. A clear result leads to a visit when it suits you, after which we explain each route and what it would mean in practice.

  1. Free plot appraisal

    We look at your plot on maps, the title plan and street views, check planning history nearby and talk it through with you. If a home beside yours looks possible we visit. No cost, no obligation.

  2. Read the street

    We measure the plot and record the building line, the gaps between houses, roof heights, materials and boundary walls, then check where a new drive could go and what drivers would be able to see from it.

  3. Design and planning

    We draw a home that sits in the street rather than fighting it, usually take pre-application advice, and submit the application. The council consults neighbours and decides; small schemes often take a few months.

  4. Sale or build

    For a sale, your solicitor handles the transfer of part and any release from your lender. For a build, a written quote follows design and survey, then we build, arrange the warranty and hand over.

Worth checking early

  • A new drive close to a junction may not be acceptable to the highway authority, which can force a different layout.
  • The council decides, and neighbours are consulted; a sensible design can still be refused or need changes.
  • Attaching a home to yours brings party wall, fire and sound separation work, and changes the feel of your own house.

Portsmouth: questions to ask

Is my Portsmouth side garden wide enough for a new house?

It depends on how wide homes are in your street, the gaps between them, whether the new home would be attached or detached and what the council’s design guidance says. There’s no single minimum width. We measure your plot and the street as part of a free appraisal.

Is there a fee for checking my side plot in Portsmouth?

There’s no fee. The appraisal is free and you’re under no obligation. We work from maps, the title and a phone call first, and only visit if the plot seems worth it. Nothing binds you until you’ve picked a route and read the written terms.

Can I build a house on my corner plot in Portsmouth?

Possibly, if a new home would respect the building lines, keep the corner feeling open enough and allow safe visibility for drivers. It needs planning permission, and Portsmouth City Council decides. Our free appraisal tells you whether your corner is worth taking further.

Will a new drive near the corner be allowed in Portsmouth?

Only if drivers would have a clear enough view of the road and the junction stays safe. The highway authority comments on this and controls new dropped kerbs. Drives very close to a corner are often resisted, so we check the position on site before designing.

Other options in Portsmouth

Corner and side plots near Portsmouth

Find out what your garden could become

Free garden plot appraisal. No cost, no obligation, and a straight answer if it won’t work.

Get my free appraisal 0800 088 6248